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237 results on '"Département Génie Biologique"'

1. Which bioindicators are suitable for soil quality monitoring and risk assessment ? From relevance study to transfer tool development

Author: Guenola Peres, Benjamin Pauget, Annette De Vaufleury, Michael Coeurdassier, Marina Leguedard, Jean-Jacques Bessoule, Samuel Dequiedt, Rémi Chaussod, Lionel Ranjard, Daniel Cluzeau, Muriel Guernion, Laurence Rougé, Mickael Hedde, Nathalie Cheviron, C Thoisy-Dur, J., Sylvie Nelieu, Christian Mougin, Isabelle Gattin, Christophe Gangneux, Laurent, N., Marc Legras, Karine Laval, Patrice Lepelletier, Salima Taïbi, Cecile Villenave, Olivier Faure, Jennifer Hellal, Jérôme Cortet, Thierry Beguiristain, Corinne Leyval, Josselin Bodilis, Steven Criquet, Adnane Hitmi, Nuria Ruiz, Franck Vandenbulcke, Cécile Grand, Laurence Galsomies, Antonio Bispo, Sol Agro et hydrosystème Spatialisation ( SAS ), Institut National de la Recherche Agronomique ( INRA ) -AGROCAMPUS OUEST, Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Laboratoire de biogenèse membranaire ( LBM ), Université Bordeaux Segalen - Bordeaux 2-Centre National de la Recherche Scientifique ( CNRS ), LEB Aquitaine Transfert – ADERA, Villenave d'Ornon, France., Agroécologie [Dijon], Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Station Biologique de Paimpont CNRS UMR 6653 ( OSUR ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ), Ingénierie Durable, Rennes, France., UR 0251 Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés, Institut National de la Recherche Agronomique ( INRA ) -Santé des plantes et environnement ( S.P.E. ) -Environnement et Agronomie ( E.A. ) -Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés ( PESSAC ), Esitpa, Mont Saint Aignan, France., ESITPA, Ecole Nationale d'Ingénieurs des Techniques Agricoles, Mont Saint Aignan, France., Unite AgriTerr, Mont St Aignan, France., ESITPA, Ecole Superieure des Ingenieurs et Techniciens pour l'Agriculture, Mont Saint Aignan, France., Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes ( Eco&Sols ), Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ) -Institut de Recherche pour le Développement ( IRD ) -Institut National de la Recherche Agronomique ( INRA ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), École des Mines de Saint-Étienne ( Mines Saint-Étienne MSE ), Institut Mines-Télécom [Paris], Bureau de Recherches Géologiques et Minières (BRGM) ( BRGM ), Laboratoire Sols et Environnement ( LSE ), Institut National de la Recherche Agronomique ( INRA ) -Université de Lorraine ( UL ), Centre d’Ecologie Fonctionnelle et Evolutive ( CEFE ), Université Paul-Valéry - Montpellier 3 ( UM3 ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -École pratique des hautes études ( EPHE ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD [France-Sud] ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), Interactions Arbres-Microorganismes ( IAM ), Morphodynamique Continentale et Côtière ( M2C ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ), Institut méditerranéen de biodiversité et d'écologie marine et continentale ( IMBE ), Université d'Avignon et des Pays de Vaucluse ( UAPV ) -Aix Marseille Université ( AMU ) -Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique ( CNRS ), IUT de Clermont Ferrand, Institut Universitaire de Technologie de Clermont Ferrand - Laboratoire de PBV, Aurillac, France., Institut de Recherche pour le Développement ( IRD [France-Nord] ), USTL, Université des Sciences et Technologies (Lille 1) - Département Génie Biologique, Villeneuve d’Ascq, France., ADEME, Agence de l'Environnement et de la Maîtrise de l'Energie, Angers, France., ADEME, Agence de l'Environnement et de la Maîtrise de l'Energie, Angers, France, Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Laboratoire Chrono-environnement - UFC (UMR 6249) (LCE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Laboratoire de biogenèse membranaire (LBM), Université Bordeaux Segalen - Bordeaux 2-Centre National de la Recherche Scientifique (CNRS), LEB Aquitaine Transfert-ADERA, Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Station Biologique de Paimpont CNRS UMR 6653 (OSUR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université Paris Diderot - Paris 7 (UPD7), Institut National de la Recherche Agronomique (INRA)-Santé des plantes et environnement (S.P.E.)-Environnement et Agronomie (E.A.)-Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés (PESSAC), École supérieure d'ingénieurs et de techniciens pour l'agriculture (ESITPA), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Institut National de la Recherche Agronomique (INRA)-Institut de Recherche pour le Développement (IRD)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Paul-Valéry - Montpellier 3 (UM3), Interactions Arbres-Microorganismes (IAM), Université de Lorraine (UL)-Institut National de la Recherche Agronomique (INRA), Morphodynamique Continentale et Côtière (M2C), Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD [France-Nord]), Département Génie Biologique, Université de Lille, Sciences et Technologies, Agence de l'Environnement et de la Maîtrise de l'Energie (ADEME), Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU), Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR), Physicochimie et Ecotoxicologie des SolS d'Agrosystèmes Contaminés (PESSAC), Institut National de la Recherche Agronomique (INRA), Plateforme BIOCHEM-ENV, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud])
Subjects: [ SDV ] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract: International audience; Introduction- Considering the few number of bioindicators available for soil risk assessment and soil characterization, a national research programme has been set up in France by the French Agency For Environment and Energy Management (ADEME) to develop indicators able to judge about soil degradation and/or remediation of its properties and functions. Objectives of this “BioIndicator programme” are to (i) develop and validate methods for measuring soil biodiversity and soil functions, (ii) test the sensibility and complementarity of the bioindicators for the characterization of different perturbations (contamination, modification of soil uses), iii) identify relevant bioindicators or endpoints for different purposes (ecological risk assessment, monitoring of soil quality..), iv) transfer the results to stakeholders (policy makers, farmers, research board) by providing suitable tools. Methods- 22 research teams are involved. 47 bioindicators are tested (microorganisms, fauna, flora) in a large panel of situations (47 situations including agricultural, industrial and forest sites) and sampled at the same moment by applying standardised sampling protocols. A common database allows the management of the high number of data (200.000). Results- Bioindicator programme initiates a first national benchmark i.e. baselines values for the different biological groups. It provides relevant tools (battery of bioindicators, biological index) adapted to different environmental targets such as i) evaluation of the impact of agricultural practices (crop rotations, reduced tillage, organic and pesticides management), ii) evaluation of the bioavailability of industrial contaminants, iii) evaluation of the biological state of contaminated soils in order to orientate their future use, iv) soil monitoring of biological state at large scale. Moreover, it provides communication tools, such as bioindicator technical sheets and web-interface addressed to stakeholders (http://ecobiosoil.univ-rennes1.fr/ADEME-Bioindicateur/). Conclusion- this10 years research programme, unique at the European Union scale, permits to improve the knowledge on soil biodiversity and its functioning, and provides tools to stakeholders for future soil management.
Published: 2014

2. Microstructure and characteristic properties of dogfish skin gelatin gels prepared by freeze/spray-drying methods

Author: Frédéric Debeaufort, Ali Salem, Mourad Jridi, Nahed Fakhfakh, Moncef Nasri, Ola Abdelhedi, Nacim Zouari, Laboratory of Enzyme Engineering and Microbiology [University of Sfax], Université de Sfax, High Institute of Applied Biology of Medenine [University of Gabes], Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: food.ingredient, Dogfish skin, Color, 02 engineering and technology, Biochemistry, Gelatin, Physico-chemical properties, 03 medical and health sciences, chemistry.chemical_compound, Ingredient, food, Squalus acanthias, Hardness, Structural Biology, Amide, Spectroscopy, Fourier Transform Infrared, Animals, Transition Temperature, Amino Acids, Desiccation, Microwaves, Microstructure, Molecular Biology, Skin, 030304 developmental biology, 0303 health sciences, Chromatography, Calorimetry, Differential Scanning, High protein, General Medicine, 021001 nanoscience & nanotechnology, Amides, Freeze Drying, chemistry, Dogfish, Yield (chemistry), Spray drying, Microscopy, Electron, Scanning, 0210 nano-technology, Gels, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract: International audience; The effects of two pretreatments (microwaves or oven-drying) on the dogfish (Squalus acanthias) skin as well as two drying processes (freeze-drying or spray-drying) on the extracted gelatins were studied. Thus six types of gelatins were obtained, three of which were freeze-dried (FG) and the others were spray-dried (SG), from the untreated skin (US), microwaves-pretreated skin (MS) and oven-pretreated skin (OS). The highest yield (8.67%) was obtained for the OSFG, while the lowest one (3.06%) was measured for the OSSG. Interestingly, all gelatins exhibited relatively high protein (84.02-89.53%), and low lipid (0.50-1.71%) and ash (3.05-7.17%) contents. In addition, gelatins were analyzed by the Fourier transform infrared and the spectra displayed important differences in some specific peaks, particularly in the amide I, amide II and amide III. The gelatins extracted from the untreated skin, regardless the drying method, presented the highest foaming capacity. The textural profile analysis showed that USSG was the hardest (213.6 g) and the chewier (23.8 N × mm) gelatin. Moreover, analysis of thermal properties showed that USSG also has the highest glass-transition temperature. The interesting properties of gelatin extracted from dogfish skin encourage their future use as a functional ingredient in industrial food formulations.
Published: 2020

3. Extraction, Characterization, and Applications of Pectins from Plant By-Products

Author: Cédric Delattre, Anissa Belkheiri, Pascal Dubessay, Slim Abdelkafi, Ali Forouhar, Alina-Violeta Ursu, Nasser Hamdami, Guillaume Pierre, Philippe Michaud, Gholamreza Djelveh, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Food Science and Technology Department, College of Agriculture, Isfahan University of Technology, Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Université de Sfax, and Laboratoire de Génie Enzymatique et Microbiologie, Équipe de Biotechnologie des Algues, Département Génie Biologique, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, Sfax 3038
Subjects: Technology, food.ingredient, Pectin, QH301-705.5, QC1-999, extraction method, 02 engineering and technology, Dielectric barrier discharge, Polysaccharide, 0404 agricultural biotechnology, food, General Materials Science, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Biology (General), QD1-999, Instrumentation, Fluid Flow and Transfer Processes, chemistry.chemical_classification, pectin, Physics, Process Chemistry and Technology, Extraction (chemistry), digestive, oral, and skin physiology, General Engineering, food and beverages, 04 agricultural and veterinary sciences, Engineering (General). Civil engineering (General), 021001 nanoscience & nanotechnology, 040401 food science, Computer Science Applications, Characterization (materials science), Chemistry, chemistry, Chemical engineering, Microwave heating, Plant species, techno-functional properties, Extraction methods, TA1-2040, agricultural waste, 0210 nano-technology
Abstract: Currently, pectins are widely used in the cosmetic, pharmaceutical, and food industries, mainly as texturizing, emulsifying, stabilizing, and gelling agents. Pectins are polysaccharides composed of a large linear segment of α-(1,4) linked d-galactopyranosyluronic acids interrupted by β-(1,2)-linked l-rhamnoses and ramified by short chains composed of neutral hexoses and pentoses. The characteristics and applications of pectins are strongly influenced by their structures depending on plant species and tissues but also extraction methods. The aim of this review is therefore to highlight the structures of pectins and the various methods used to extract them, including conventional ones but also microwave heating, ultrasonic treatment, and dielectric barrier discharge techniques, assessing physico-chemical parameters which have significant effects on pectin characteristics and applications as techno-functional and bioactive agents.
Published: 2021

4. Toward Sustainable PLA-Based Multilayer Complexes with Improved Barrier Properties

Author: Roberta Pasquarelli, Stéphane Fontaine, Aurélie Lagorce-Tachon, Jeancarlo R. Rocca-Smith, Véronique Aguié-Béghin, Frédéric Debeaufort, Jérôme Rousseau, Thomas Karbowiak, Université Bourgogne Franche-Comté [COMUE] (UBFC), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département de Recherche en Ingénierie des Véhicules pour l'Environnement [Nevers] (DRIVE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB), Fractionnement des AgroRessources et Environnement (FARE), Université de Reims Champagne-Ardenne (URCA)-Institut National de la Recherche Agronomique (INRA), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Physico-Chimie de l'Aliment et du Vin (PCAV), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, European Social Fund-Friuli Venezia Giulia Region-Operational Program 2007/2013 FP1340303009, University Italo-Francese C2-64 Regional Council of Bourgogne-Franche Comte, Fonds Europeen de Developpement Regional (FEDER), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Université de Bourgogne (UB)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Fractionnement des AgroRessources et Environnement - UMR-A 614 (FARE), Université de Reims Champagne-Ardenne (URCA)-Institut National de la Recherche Agronomique (INRA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire de Physique et Mécanique Textiles (LPMT), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-ENSITM-Matériaux et nanosciences d'Alsace, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: plastic material, Corona treatment, [SDV]Life Sciences [q-bio], General Chemical Engineering, Hot-pressing, Wheat gluten, emballage alimentaire, 02 engineering and technology, Hot pressing, 01 natural sciences, OXYGEN, [SPI]Engineering Sciences [physics], CARBON-DIOXIDE, chemistry.chemical_compound, Surface modification, Polylactic acid, Coating, ComputingMilieux_MISCELLANEOUS, POLY(LACTIC ACID), Spin coating, sustainable development, plastique, ANTIMICROBIAL PROPERTIES, 021001 nanoscience & nanotechnology, Food packaging, développement durable, Biobased and biodegradable polymers, 0210 nano-technology, Materials science, WATER-VAPOR BARRIER, GLASS-TRANSITION, PROTEIN ISOLATE, Nanotechnology, engineering.material, FILMS, 010402 general chemistry, 12. Responsible consumption, Poly(lactic acid) PLA, Environmental Chemistry, EFFICIENT GAS, Renewable Energy, Sustainability and the Environment, POLYLACTIC ACID, High-pressure homogenization, General Chemistry, 0104 chemical sciences, chemistry, engineering, acide lactique
Abstract: Poly(lactic acid) or PLA is currently considered as one of the most promising substitutes of conventional plastics, with low environmental impact, especially for food packaging applications. Nevertheless, some drawbacks, such as high permeability to oxygen, are still limiting its industrial applications. The objective of this study was to highly increase the oxygen barrier performance of PLA without compromising its sustainable nature and following the principles of circular economy perspective. Coproducts coming from mill industries, such as wheat gluten proteins (WG), were used to produce PLA-WG-PLA multilayer complexes with improved barrier performance. Different technologies of industrial interest were considered: high-pressure homogenization of WG film forming dispersions, corona treatment of industrial PLA films, wet casting and spin coating for tailoring the WG coating thickness, and hot-pressing for shaping the multilayers. The impact of all these strategies on the properties (surface and bulk) and performances (barrier and adhesion) were investigated on the single constituent layers as well as on the final laminate. The most efficient complex increased more than 20 times (or 2000%) the barrier properties to oxygen and ∼20% the barrier properties to water vapor, considering application conditions (50% relative humidity and 25 °C). The low thickness (∼60 μm) of this complex also matched the requirement for flexible packaging applications. High-pressure homogenization, WG coating thickness, and hot-pressing positively and highly impacted the final properties of the multilayer, while the contribution of corona treatment was limited. This study unambiguously evidenced the potential of PLA-WG-PLA complexes as a valid sustainable substitute for high performing conventional plastics, and it could open an unexplored PLA market opportunity. In addition, it could motivate further investigations on PLA-based laminates for industrial interest, using other biopolymers from agro-industrial waste or byproducts.
Published: 2019

5. Effects of Candelilla and Carnauba Wax Incorporation on the Functional Properties of Edible Sodium Caseinate Films

Author: Hanna Kowalska, Sabina Galus, Frédéric Debeaufort, Margaux Gaouditz, Department of Food Engineering and Process Management [Warsaw University of Life Sciences], Faculty of Food Sciences [Warsaw University of Life Sciences], Warsaw University of Life Sciences (SGGW)-Warsaw University of Life Sciences (SGGW), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
Subjects: Lightness, Materials science, candelilla wax, edible films, 02 engineering and technology, Article, Catalysis, physical properties, Inorganic Chemistry, lcsh:Chemistry, chemistry.chemical_compound, 0404 agricultural biotechnology, carnauba wax, sodium caseinate, Physical and Theoretical Chemistry, Molecular Biology, lcsh:QH301-705.5, Spectroscopy, Wax, Aqueous solution, Organic Chemistry, Plasticizer, Caseins, 04 agricultural and veterinary sciences, General Medicine, Candelilla wax, 021001 nanoscience & nanotechnology, Lipids, 040401 food science, Computer Science Applications, Solubility, Chemical engineering, chemistry, lcsh:Biology (General), lcsh:QD1-999, Waxes, visual_art, Emulsion, visual_art.visual_art_medium, Carnauba wax, 0210 nano-technology, Dispersion (chemistry), [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract: International audience; The aim of this study was to evaluate the effects of candelilla (CAN) or carnauba wax (CAR) incorporation on functional properties of edible sodium caseinate (CAS) films. Glycerol and Tween-80 were used as the plasticizer and the emulsifier, respectively. The results showed that the incorporation of waxes increased film opacity, total color differences (∆E), and mechanical resistance and reduced film lightness, water vapor permeability (WVP), and elongation at break. Scanning electron microscopy showed heterogeneous structure of emulsion films with regular distribution of lipid particles. A different internal arrangement was observed as a function of the film composition with both layered and incorporated film structure. Films containing candelilla wax exhibited more regular lipid reorganization, which resulted in better water vapor barrier efficacy and mechanical resistance in comparison to control films. The presence of Tween-80 resulted in better dispersion of lipid particles in film-forming solutions and lower water solubility, lightness, film opacity, and water vapor permeability, whereas the total color differences (∆E) were significantly larger and the improvement in mechanical properties was also achieved.
Published: 2020

6. Biochemical Characterization of a Bifunctional Enzyme Constructed by the Fusion of a Glucuronan Lyase and a Chitinase from Trichoderma sp

Author: Baklouti, Zeineb, Delattre, Cédric, Pierre, Guillaume, Gardarin, Christine, Abdelkafi, Slim, Michaud, Philippe, Dubessay, Pascal, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Département Génie Biologique, Université de Sfax, Unité de Biotechnologie des Algues, Ecole National d’Ingénieurs de Sfax, 3018 Sfax, Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)
Subjects: bifunctional enzyme, chitinase, polysaccharide, glucuronan lyase, lcsh:Q, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, enzymatic efficiency, [SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM], lcsh:Science
Abstract: International audience; Bifunctional enzymes created by the fusion of a glucuronan lyase (TrGL) and a chitinase (ThCHIT42) from Trichoderma sp. have been constructed with the aim to validate a proof of concept regarding the potential of the chimera lyase/hydrolase by analyzing the functionality and the efficiency of the chimeric constructions compared to parental enzymes. All the chimeric enzymes, including or nor linker (GGGGS), were shown functional with activities equivalent or higher to native enzymes. The velocity of glucuronan lyase was considerably increased for chimeras, and may involved structural modifications at the active site. The fusion has induced a slightly decrease of the thermostability of glucuronan lyase, without modifying its catalytic activity regarding pH variations ranging from 5 to 8. The biochemical properties of chitinase seemed to be more disparate between the different fusion constructions suggesting an impact of the linkers or structural interactions with the linked glucuronan lyase. The chimeric enzymes displayed a decreased stability to temperature and pH variations, compared to parental one. Overall, TrGL-ThCHIT42 offered the better compromise in terms of biochemical stability and enhanced activity, and could be a promising candidate for further experiments in the field of fungi Cell Wall-Degrading Enzymes (CWDEs)
Published: 2020

7. Modeling of the release kinetics of phenolic acids embedded in gelatin/chitosan bioactive-packaging films: Influence of both water activity and viscosity of the food simulant on the film structure and antioxidant activity

Author: Sylvie Moundanga, Frédéric Debeaufort, Claire-Hélène Brachais, Rima Mahfoudh, Nasreddine Benbettaïeb, Odile Chambin, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Institut National des Sciences Appliquées et de Technologie [Tunis] (INSAT), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), and Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC)
Subjects: food.ingredient, Water activity, Active packaging, 02 engineering and technology, Biochemistry, Gelatin, Antioxidants, Chitosan, 03 medical and health sciences, chemistry.chemical_compound, food, Polyol, Anti-Infective Agents, Structural Biology, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Glycerol, Hydroxybenzoates, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Gallic acid, Molecular Biology, 030304 developmental biology, chemistry.chemical_classification, Release mechanism, 0303 health sciences, Viscosity, Plasticizer, Water, Structure, General Medicine, 021001 nanoscience & nanotechnology, Kinetics, chemistry, 0210 nano-technology, Nuclear chemistry, Antioxidant and antimicrobial
Abstract: International audience; Hydrocolloid-based films containing natural phenolic antioxidants (gallic and trans-cinnamic acids at 5% w/wt of polymers) embedded in a gelatin/chitosan matrix were designed as sustainable active packaging. This work deals with characterizing the release mechanisms of the phenolic acids from the films immersed into food simulants (sugar or polyol solutions) having different water activities and viscosities. The films containing gallic acid exhibited higher antioxidant activities than the trans-cinnamic acid films. The use of sucrose or glycerol to reduce the aw both decreases the iron chelating power (antioxidant) and the E Coli growth (antimicrobial). Interactions involved between macromolecules (chitosan and gelatin) and phenolic compounds influence the release kinetic parameters (diffusivity, convection and partition coefficients) that were studied according to the nature of solute, the water activity and the viscosity of the release media. Thermal analysis (TGA and DSC) revealed a plasticization by both sucrose and glycerol, which entered the film.
Published: 2020

8. Bioactive Polysaccharides from Seaweeds

Author: Djomdi Djomdi, Philippe Michaud, Guillaume Pierre, Imen Fendri, Faiez Hentati, Latifa Tounsi, Alina-Violeta Ursu, Cédric Delattre, Slim Abdelkafi, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Department of Renewable Energy, National Advanced School of Engineering of Maroua, University of Maroua, P.O. Box 46 Maroua, Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Laboratoire de Biotechnologie des Plantes Appliquée à l’Amélioration des Cultures, Faculté des Sciences de Sfax, Université de Sfax, Sfax 3038, Laboratoire de Génie Enzymatique et Microbiologie, Équipe de Biotechnologie des Algues, Département Génie Biologique, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, Sfax 3038, and Université de Sfax
Subjects: polysaccharides, Pharmaceutical Science, 02 engineering and technology, Review, Health benefits, Xanthophylls, Polysaccharide, biomolecules, Analytical Chemistry, lcsh:QD241-441, bioactive agents, 03 medical and health sciences, chemistry.chemical_compound, Nutraceutical, lcsh:Organic chemistry, Macroalgae, Drug Discovery, Phycocyanin, Fucoxanthin, Humans, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Food science, Physical and Theoretical Chemistry, [SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM], Carotenoid, 030304 developmental biology, chemistry.chemical_classification, 0303 health sciences, Organic Chemistry, 021001 nanoscience & nanotechnology, Seaweed, Carotenoids, seaweeds, chemistry, Chemistry (miscellaneous), Dietary Supplements, Molecular Medicine, Disease prevention, 0210 nano-technology, Peptides
Abstract: International audience; Bioactive compounds with diverse chemical structures play a significant role in disease prevention and maintenance of physiological functions. Due to the increase in industrial demand for new biosourced molecules, several types of biomasses are being exploited for the identification of bioactive metabolites and techno-functional biomolecules that are suitable for the subsequent uses in cosmetic, food and pharmaceutical fields. Among the various biomasses available, macroalgae are gaining popularity because of their potential nutraceutical and health benefits. Such health effects are delivered by specific diterpenes, pigments (fucoxanthin, phycocyanin, and carotenoids), bioactive peptides and polysaccharides. Abundant and recent studies have identified valuable biological activities of native algae polysaccharides, but also of their derivatives, including oligosaccharides and (bio)chemically modified polysaccharides. However, only a few of them can be industrially developed and open up new markets of active molecules, extracts or ingredients. In this respect, the health and nutraceutical claims associated with marine algal bioactive polysaccharides are summarized and comprehensively discussed in this review.
Published: 2020

9. Brain-derived neurotrophic factor is a full endothelium-derived factor in rats

Author: Aurore Quirié, Christine Marie, Nicolas Pernet, Anne Prigent-Tessier, Marina Cefis, Philippe Garnier, Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: 0301 basic medicine, Male, medicine.medical_specialty, Endothelium, Nitric Oxide Synthase Type III, Physiology, [SDV]Life Sciences [q-bio], Physical Exertion, Tropomyosin receptor kinase B, 030204 cardiovascular system & hematology, Nitric Oxide, 03 medical and health sciences, 0302 clinical medicine, Neurotrophic factors, medicine.artery, Internal medicine, medicine, Animals, Receptor, trkB, Aorta, Abdominal, Phosphorylation, Rats, Wistar, Receptor, Autocrine signalling, computer.programming_language, Pharmacology, Brain-derived neurotrophic factor, Aorta, sed, Chemistry, Brain-Derived Neurotrophic Factor, Endothelial Cells, Vasodilation, Autocrine Communication, 030104 developmental biology, Endocrinology, medicine.anatomical_structure, nervous system, Molecular Medicine, Venae Cavae, Sedentary Behavior, computer, Signal Transduction
Abstract: Most of what is known on vascular brain-derived neurotrophic factor (BDNF) derived from experiments on cultured endothelial cells. Therefore, the present study compared BDNF levels/localization in artery (aorta) vs vein (vena cava) from a same territory in rats either sedentary (SED) or exposed to treadmill exercise (EX) as a mean to stimulate endogenous endothelial nitric oxide (NO) production. In SED rats, for both artery and vein, BDNF was strongly expressed by endothelial cells, while only a faint and scattered expression was observed throughout the media. Endothelial and muscular BDNF staining as vascular BDNF protein levels were however higher in artery than in vein, while BDNF mRNA levels did not differ between vessels. Irrespective of the vessels, EX resulted in an increase (+50%) in BDNF protein levels with no change in BDNF mRNA levels, a selective endothelial BDNF overexpression (x4) and an increase in vascular levels of tropomyosin related kinase B receptors (TrkB) phosphorylated at tyrosine 816 (p-TrkBTyr816). Endothelial expressions of BDNF and p-TrkBTyr816 were positively associated when SED and EX rats were simultaneously examined. The results incite to consider endothelial BDNF as a full and NO-dependent endothelium-derived factor that exerts autocrine effects.
Published: 2020

10. Design of Gelatin Pouches for the Preservation of Flaxseed Oil during Storage

Author: Hela Kchaou, Mourad Jridi, Frédéric Debeaufort, Moncef Nasri, Laboratory of Enzyme Engineering and Microbiology [University of Sfax], Université de Sfax, Institut Supérieur de Biotechnologie de Beja (Université de Jendouba), Université de Jendouba (UJ), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Materials science, food.ingredient, 030309 nutrition & dietetics, Thiobarbituric acid, chemistry.chemical_element, flaxseed oil, Gelatin, Oxygen, Peroxide, 03 medical and health sciences, symbols.namesake, chemistry.chemical_compound, 0404 agricultural biotechnology, food, Lipid oxidation, lipid oxidation, Materials Chemistry, TBARS, gelatin pouches, Food science, chemistry.chemical_classification, 0303 health sciences, 04 agricultural and veterinary sciences, Surfaces and Interfaces, 040401 food science, 3. Good health, Surfaces, Coatings and Films, Maillard reaction, chemistry, lcsh:TA1-2040, symbols, lcsh:Engineering (General). Civil engineering (General), [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Polyunsaturated fatty acid
Abstract: Flaxseed oil (FO) is composed mainly of polyunsaturated fatty acids that are very sensitive to oxidation induced by oxygen, temperature, and light. To overcome this problem, gelatin-based films containing glucose are crosslinked via the Maillard reaction (MR) at 120 &deg, C and used for the conception of pouches in which the FO was packaged. The prepared pouches, as well as the oil alone, are incubated at 50 &deg, C for 21 days. The results show that the peroxide index of the oil stored in the gelatin-based pouches is almost stable and decreases on the 21st day. The specific extinction coefficients prove a more pronounced degradation of the non-package oil (control). In addition, the results of thiobarbituric acid reactive substances (TBARs) test reveal higher values in the control, with a tendency to continuously increase up until the 21st day. However, the oil stored in the pouches reveals less TBARs content, decreasing with oxidation time. The non-heated glucose-supplemented pouches showed the best results, suggesting a moderate and gradual development of the MR at 50 &deg, C. The application of pouches based on gelatin films seems to be an effective and interesting tool for protecting FO against lipid oxidation, acting as perfectly biodegradable and sustainable containers for small doses.
Published: 2020
Full Text: View/download PDF

11. Caractérisation des relations entre contexte de production laitière et qualité des laits et des fromages

Author: Fouquet, Alice, Agro-Systèmes Territoires Ressources Mirecourt (ASTER Mirecourt), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Projet BIOFROM, and IUT de Colmar - Département Génie-Biologique
Subjects: [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, Production laitière, Qualité du lait, [SDV]Life Sciences [q-bio], Condition d'élevage, Conduite de troupeaux, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, Agriculture biologique, Lait de foin, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Prairie
Published: 2020

12. Bioactive edible films for food applications: mechanisms of antimicrobial and antioxidant activity

Author: Thomas Karbowiak, Frédéric Debeaufort, Nasreddine Benbettaïeb, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Preservative, Antioxidant, Bioactive edible films, 030309 nutrition & dietetics, medicine.medical_treatment, bioactivity mechanisms, engineering.material, Shelf life, Antioxidants, Industrial and Manufacturing Engineering, 03 medical and health sciences, 0404 agricultural biotechnology, Nutraceutical, Anti-Infective Agents, Food Preservation, [SDV.IDA]Life Sciences [q-bio]/Food engineering, medicine, natural antioxidants and antimicrobials, Food science, Edible Films, 0303 health sciences, Indirect contact, Chemistry, Food Packaging, Food preservation, 04 agricultural and veterinary sciences, General Medicine, Antimicrobial, 040401 food science, engineering, Biopolymer, Food Science
Abstract: International audience; In order to improve the quality of food and to extend their shelf life, a new generation of active edible films is being especially intended after the incorporation of organic acids, enzymes, antimicrobial proteins, phenolic compounds, or other functional ingredients such as probiotics, flavors, vitamins and nutraceuticals. These active compounds have different mechanisms of action related to their structure, their concentration, the nature of micro-organism targeted, the process of encapsulation or incorporation in the biopolymer film-networks. The application of the active films by direct contact or indirect contact via the head space also affects the bioactivity of these compounds. This article critically reviews the published work on active edible-films and their applications for food preservation. The classes of active compounds and their action mechanisms are firstly discussed. Then, an extended overview on their effect on model food (simulants) or on real food during storage was also addressed. Edible films offer two main advantages over the direct incorporation of the antimicrobial or antioxidant agents into the bulk food: 1) to control the diffusion of active compounds at the surface of the food and 2) to reduce the amount of preservatives added in the food.
Published: 2018

13. Désinfection de Listeria monocytogenes sur couches minces de TiO2 par photocatalyse

Author: Aboudalle, Arwa, Barthomeuf, Marion, Menana, Koceila, Castel, Xavier, Le Gendre, Laurent, Louis, Justine, Pissavin, Christine, IUT de Saint-Brieuc, Université de Rennes (UR), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Nantes Université (NU)-Université de Rennes 1 (UR1), and Castel, Xavier
Subjects: [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, [SPI.MAT] Engineering Sciences [physics]/Materials, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: National audience
Published: 2019

14. Polysaccharides and Derivatives from Africa to Address and Advance Sustainable Development and Economic Growth in the Next Decade

Author: Imen Fendri, Zainab El Alaoui-Talibi, Slim Abdelkafi, Antony Sarraf, Guillaume Pierre, Zakaria Boual, Philippe Michaud, Cherkaoui El Modafar, Emeline Verton, Cédric Delattre, Pascal Dubessay, Mohamed Didi Ould El Hadj, Noura Addoun, Polytech'Clermont-Ferrand, Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Laboratoire de Protection des Ecosystèmes en Zones arides et semi-arides, Université Kasdi Merbah Ouargla, Laboratoire d’Agrobiotechnologie et Bioingénierie, Faculté des Sciences et Techniques Marrakech, Université Cadi Ayyad, Marrakesh 40000, Laboratoire de Génie Enzymatique et Microbiologie, Équipe de Biotechnologie des Algues, Département Génie Biologique, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, Sfax 3038, Laboratoire de Biotechnologies des Plantes Appliquées à l’Amélioration des Plantes, Faculté des Sciences, Université de Sfax, Sfax 3038, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Université Cadi Ayyad [Marrakech] (UCA), and Université de Sfax
Subjects: macroalgae, Technology, QH301-705.5, Natural resource economics, QC1-999, polysaccharides, 02 engineering and technology, 01 natural sciences, ethnobotany, General Materials Science, Biology (General), QD1-999, Instrumentation, Natural medicine, 2. Zero hunger, Fluid Flow and Transfer Processes, Sustainable development, plants, 010405 organic chemistry, Physics, Process Chemistry and Technology, biological activities, General Engineering, 15. Life on land, Engineering (General). Civil engineering (General), 021001 nanoscience & nanotechnology, Human being, 3. Good health, 0104 chemical sciences, Computer Science Applications, Chemistry, Geography, Africa, TA1-2040, 0210 nano-technology, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Knowledge development
Abstract: International audience; Polysaccharides are highly variable and complex biomolecules whose inventory of structures is still very incomplete, as nature still preserves unexplored biotopes. Plants, macroalgae and microalgae are an integral part of the daily life of human being regardless of culture, time, or knowledge development of a country. Natural medicine is an ancestral knowledge widely distributed throughout the world, handed down for centuries from generation to generation by those commonly referred to as “nganga” healers or shamans. It is also called alternative medicine or traditional medicine, and has been associated for millennia to legends. This review gives an emphasis regarding the ethnobotanic approach associated to the structural variability of poly- and oligosaccharides for designing the new polysaccharide-based drugs and hydrocolloids of tomorrow. The guiding thread is to survey the potential of plants (and some macroalgae) from Africa as a source of polysaccharides with original structures and, secondly, to correlate these structures with biological and/or functional properties in particular to address and advance the sustainable development and economic growth of mankind.
Published: 2021

15. Bioactive edible films for food applications:Influence of the bioactive compounds on film structure and properties

Author: Nasreddine Benbettaïeb, Thomas Karbowiak, Frédéric Debeaufort, Procédés Alimentaires et Microbiologiques [Dijon] ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté ( UBFC ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Polymers, 030309 nutrition & dietetics, Phytochemicals, Active packaging, plasticization, Active edible films, engineering.material, structure modification, Shelf life, Antioxidants, Permeability, Industrial and Manufacturing Engineering, 03 medical and health sciences, Biopolymers, 0404 agricultural biotechnology, Anti-Infective Agents, Bacteriocins, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Hydroxybenzoates, chemistry.chemical_classification, Volatile Organic Compounds, functional properties, 0303 health sciences, Plant Extracts, Food Packaging, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Plasticizer, 04 agricultural and veterinary sciences, General Medicine, Polymer, Biodegradation, 040401 food science, Controlled release, Enzymes, Food packaging, Steam, Chemical engineering, chemistry, Food, engineering, Biopolymer, controlled release, cross-linking, Food Science
Abstract: International audience; Nowadays, a new generation of edible films is being especially designed for incorporating antimicrobials, antioxidants, enzymes or functional ingredients. Edible films made from natural biopolymers become the focus of many research works as an alternative to synthetic food packaging due to their edibility, biodegradability and compostability as well as to their use as active packaging. Active compounds incorporated in edible films could protect foods against deterioration during storage and therefore extend their shelf life. These active films were mainly studied for the bioactivity, as antimicrobial or antioxidant. However, they could also improve the structure and the physicochemical properties of films through chemical linkage with reactive groups of the polymer chains for instance. Moreover, changing the film structure under cross-linking reaction may increase the cohesion between polymer chains and active compounds, and therefore their retention in the polymer network to better control their release. This manuscript provides an overview on the effect of bio-active compounds incorporation on the film structure and functional properties. Depending on their structure, concentration, reactive groups,.., active compounds can act as plasticizer, but also as anti-plasticizer or cross-linking agents in the biopolymer matrix, and can thus ameliorate the water vapour and gas permeability. Therefore, the retention of bioactive compounds in the polymer network and their release can be better controlled. They can also provide a negative plasticizing effect on the film structure. Hence, the improvement of edible active film functionalities has been investigated to achieve suitable applications on foods.
Published: 2017

16. Bactericidal efficiency of UVA-active titanium dioxide thin layers on bacteria from food industry environments

Author: Xavier Castel, Perrine Raymond, Marion Barthomeuf, Martine Denis, Laurent Le Gendre, Christine Pissavin, Nyedna Policarpo, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), European Regional Development Fund (ERDF), Ministry of Higher Education and Research, STIC, Région Bretagne, Département des Côtes d’Armor and Saint-Brieuc Armor Agglomération, IUT de Saint-Brieuc, Université de Rennes (UR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Nantes Université (NU)-Université de Rennes 1 (UR1)
Subjects: 0301 basic medicine, Anatase, Materials science, 030106 microbiology, 02 engineering and technology, [SPI.MAT]Engineering Sciences [physics]/Materials, 03 medical and health sciences, chemistry.chemical_compound, General Materials Science, ComputingMilieux_MISCELLANEOUS, Thin layers, biology, Mechanical Engineering, Environmental engineering, Biofilm, 021001 nanoscience & nanotechnology, Condensed Matter Physics, biology.organism_classification, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, chemistry, Chemical engineering, Mechanics of Materials, Titanium dioxide, Photocatalysis, 0210 nano-technology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Layer (electronics), Bacteria, Methylene blue
Abstract: Titanium dioxide (TiO2) thin layers have been deposited on glass substrates using radio frequency magnetron sputtering technique. The photocatalytic activity of the TiO2 thin layers has been investigated by a methylene blue discolouration test and reveals that films with an anatase structure present the highest performance. Bactericidal activity of the anatase-phase TiO2 layer against food-borne bacteria has then been tested by enumeration of the adherent cells, after adhesion and a subsequent UVA illumination. A decrease of the adherent bacteria number equal to −1.2, −2.6 and −2.3 log is reached for Y. enterocolitica, L. monocytogenes and P. fragi, respectively. SEM observations exhibit bacterial cells with damaged walls for all bacteria. Applied on materials present in the food plants, these TiO2 thin layers may be an effective way for the hygienic conception of the equipment to reduce the biofilm formation and thus, to ensure food safety.
Published: 2017

17. Beyond Biodegradability of Poly(lactic acid): Physical and Chemical Stability in Humid Environments

Author: Claire-Hélène Brachais, Orla Whyte, Eva Marcuzzo, Francesca Piasente, Dominique Champion, Thomas Karbowiak, Frédéric Debeaufort, Alessandro Sensidoni, Jeancarlo R. Rocca-Smith, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] ( DI4A ), Università degli Studi di Udine - University of Udine [Italie], Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] ( ICMUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Taghleef Industries, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), European Social Fund-Friuli Venezia Giulia Region-Operational Program [FP1340303009], University Italo-Francese for mobility (Bando Vinci 2015 Cap II) [C2-64 ], RMB plateau of UMR PAM for thermal analyses, ICMUB research unit for SEC analyses, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] (DI4A), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC), Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, and Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Aging, Hydrolytic degradation, Phosphate-buffered solution, General Chemical Engineering, Amorphous fractions, 02 engineering and technology, Polylactide, 010402 general chemistry, 01 natural sciences, Bioplastic, Hydrolysis, chemistry.chemical_compound, Glass-transition, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Environmental Chemistry, Organic chemistry, Relative humidity, Relative-humidity, State of water, Poly(l-lactic acid), Renewable Energy, Sustainability and the Environment, Chemistry, Amorphous phase, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, technology, industry, and agriculture, General Chemistry, Biodegradation, equipment and supplies, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Lactic acid, Lactide copolymers, PLA, Degradation (geology), Chemical stability, In-vitro degradation, 0210 nano-technology, Glass transition
Abstract: International audience; Poly(lactic acid) (PLA) is the most traded biodegradable and biobased material. It is largely used as ecofriendly substitute of conventional plastics. Nevertheless, one of the main limiting factors is its water sensitivity. PLA reacts with water and is hydrolyzed during time, which determines its performance. Limited information related to the hydrolysis mechanism driven by water in vapor state is available in scientific literature. Literature is mainly focused on the effects of water in liquid state. This lack of information is of significant importance, since PLA interacts with water in both phases. This work was aimed to give a full depiction of the chemical and physical changes of PLA in a large range of relative humidity environments (from 50 to 100% RH) and in contact with liquid water. This research clearly showed that the stability of PLA was influenced not only by the chemical potential of water molecules, but also by their physical state due to a different behavior of degradation products. From a practical point of view, the findings of this study can be used as strong scientific basis for giving recommendations about the use of this material in its applications as packaging or mulch films.
Published: 2017

18. Effect of short-term exercise training on brain-derived neurotrophic factor signaling in spontaneously hypertensive rats

Author: Christine Marie, Alice Monnier, Aurore Quirié, Nicolas Pernet, Céline Demougeot, Philippe Garnier, Anne Prigent-Tessier, Pôle Rééducation - Réadaptation (Médecine Physique et Réadaptation) (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Pathologies et épithéliums : prévention, innovation, traitements, évaluation (EA 4267) (PEPITE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut National de la Sante et de la Recherche Medicale (INSERM) Region of Burgundy (France) 9201CPER0004S02192 'Pole de Recherche et d'Enseignement Superieur Bourgogne-Franche Comte' (France) PRES 2010 23, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Pathologies et épithéliums : prévention, innovation, traitements, évaluation (EA 4267) ( PEPITE ), and Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC )
Subjects: hippocampus, cerebral-blood-flow, Physiology, Vasodilator Agents, Blood Pressure, Tropomyosin receptor kinase B, 030204 cardiovascular system & hematology, Hippocampal formation, Rats, Inbred WKY, Nitroglycerin, chemistry.chemical_compound, 0302 clinical medicine, physical exercise, Enos, Neurotrophic factors, Rats, Inbred SHR, oxidative stress, Hippocampus (mythology), factor expression, Phosphorylation, Neurons, biology, brain-derived neurotrophic factor, Protein-Tyrosine Kinases, [ SDV.MHEP.CSC ] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Cardiology and Cardiovascular Medicine, Signal Transduction, medicine.medical_specialty, hypertension, hippocampal plasticity, Nitric Oxide Synthase Type III, nitric-oxide synthase, Synaptophysin, Physical exercise, Nitric Oxide, Nitric oxide, 03 medical and health sciences, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Physical Conditioning, Animal, Internal medicine, Internal Medicine, medicine, Animals, Receptor, trkB, Protein Precursors, long-term potentiation, cognitive function, Brain-derived neurotrophic factor, synaptic plasticity, business.industry, Endothelial Cells, longitudinal changes, biology.organism_classification, Rats, endothelial-cells, Endocrinology, nervous system, chemistry, endothelium-derived nitric oxide, business, 030217 neurology & neurosurgery
Abstract: International audience; Objective: Decreased brain-derived neurotrophic factor (BDNF) level has been reported in the hippocampus of hypertensive rats. The present study explored whether brain neurons and/or endothelial cells are targeted by hypertension with respect to BDNF expression and the potential of physical exercise to cope with hypertension.Methods: Physical exercise was induced in spontaneously hypertensive rats (SHR) and Wistar Kyoto (WKY) rats. The hippocampus of sedentary and exercised rats (n = 6 for each group) were used for western blots to assess proBDNF, mature BDNF (mBDNF), tropomyosin-related kinase B (TrkB), P-TrkB(tyr816) (TrkB phosphorylated at tyrosine 816), synaptophysin, endothelial nitric oxide synthase (eNOS) and eNOS phosphorylated at serine 1177 protein levels. BDNF and proBDNF localization in the hippocampus was studied in WKY rats, SHR and exercised SHR (n = 5 each). mBDNF and proBDNF protein levels were also assessed in hippocampal slices prepared from SHR (n = 10) that were incubated for 24 h with the nitric oxide (NO) donor glyceryl trinitrate. SBP was measured by the tail-cuff method.Results: Exercise modified blood pressure neither in SHR nor WKY. As compared with WKY rats, SHR displayed decreased levels of mBDNF, P-TrkB(tyr816), synaptophysin, eNOS and eNOS phosphorylated at serine 1177 but no change in proBDNF and TrkB levels. These effects coincided with low BDNF staining in both endothelial cells and neurons. Exercise improved the endothelium-derived NO system and the BDNF pathway in both strains. The NO donor increased mBDNF but decreased proBDNF levels.Conclusion: Our results revealed that endothelial and neuronal BDNF expressions were both impaired in hypertension and that physical exercise improved hippocampal mBDNF levels and signaling through blood pressure-independent mechanisms.
Published: 2017

19. Sorption kinetic of aroma compounds by edible bio-based films from marine-by product macromolecules: Effect of relative humidity conditions

Author: Elias Bou-Maroun, Nasreddine Benbettaïeb, Claire-Hélène Brachais, Frédéric Debeaufort, Anne-Marie Seuvre, Anne-sophie Viaux, Claire O'Connell, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Université Bourgogne Franche-Comté [COMUE] (UBFC), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Cork Institute of Technology (CIT), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC), Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), FLAveur, VIsion et Comportement du consommateur (FLAVIC), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)
Subjects: food.ingredient, Chromatography, Gas, Antiplasticization, 030309 nutrition & dietetics, Active edible films, Gelatin, Structure properties, Analytical Chemistry, 03 medical and health sciences, chemistry.chemical_compound, 0404 agricultural biotechnology, food, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Phenol, Relative humidity, Aroma, 0303 health sciences, Chitosan, Volatile Organic Compounds, Aroma sorption, Moisture, biology, Calorimetry, Differential Scanning, Chemistry, Plasticization, Plasticizer, Temperature, Sorption, Humidity, 04 agricultural and veterinary sciences, General Medicine, Ketones, biology.organism_classification, 040401 food science, Kinetics, 13. Climate action, Alcohols, Adsorption, Glass transition, Food Science, Nuclear chemistry
Abstract: International audience; Edible films based on gelatin and chitosan have high gas and aroma barrier properties. This study focused on their capability to sorbed/retain aroma compounds (1-hexanal, 2-hexen-1-ol, 1-hexanol, 3-hexanone and phenol) at three relative humidity level (≤2%, 53% or 84% RH). Whatever the relative humidity condition, the order of sorption is keton (3-hexanone)
Published: 2019

20. FITNESS, première plateforme européenne sur l’emballage et le conditionnement des aliments

Author: Antoine Kieffer, Catherine Loriot, Patrick Sauvegrain, Jean Mario Julien, Mai Nguyen, Olivier Vitrac, Massimiliano Gerometta, Marie-Christine Chagnon, Frédéric Debeaufort, Thomas Karbowiak, Jacques Thebault, Association de Coordination Technique Agricole pour l'Industrie Agro-Alimentaire (ACTIA), Laboratoire National de Métrologie et d'Essais [Trappes] (LNE ), Ingénierie, Procédés, Aliments (GENIAL), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Equipe NuTox (LNC - U1231) (NUTOX), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Physico-Chimie de l'Aliment et du Vin (PCAV), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, and Dijon (Kevin Oudard), Institut Agro
Subjects: Emballage biodégradable, [SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], Cours en ligne, Formation continue, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract: National audience; FITNESS (2017-2020) est un projet financé dans le cadre du programme européen Erasmus+. Le but de ce projet est de mettre en place une plateforme virtuelle proposant librement des contenus interactifs (présentations, guides, quizz, webinaires, outils de calcul) en lien avec l’emballage alimentaire et les problématiques de conditionnement des aliments. L’objectif est d’offrir un contenu permettant de comprendre les principes et les enjeux (modules de base), et d’apprendre des techniques plus avancées permettant de maîtriser les impacts ou la sécurité sanitaires des matériaux utilisés (modules avancés). La plateforme s’adresse aussi bien aux étudiants, enseignants et professionnels de l’industriel agroalimentaire, de l’emballage ou de la chimie. La plateforme ne requiert aucun logiciel particulier et peut-être utilisée pour des cours magistraux, des travaux pratiques ou encore un apprentissage individuel. Les domaines couvrent les matériaux, l’aliment et ses contraintes, la physico-chimie, le conditionnement, les études d’impacts, la réglementation, jusqu’aux techniques avancées de modélisation. Le projet FITNESS rassemble 8 partenaires de 5 pays différents : Allemagne (Université Technique de Munich/Fraunhofer), Croatie (Université de Zagreb), Espagne (CSIC), France (ACTIA, LNE, AgroParisTech/INRA, AgroSup Dijon), Portugal (Université Catholique du Portugal). La plateforme FITNESS développée dans le cadre d’un projet open-source est disponible en ligne avec son contenu constamment enrichi (85 cours à terme) à l’adresse : https://fitness.agroparistech.fr. Les contenus sont actuellement testés et optimisés face à différents publics cibles.
Published: 2019

21. FITNESS, première plateforme européenne sur l’emballage et le conditionnement des aliments

Author: DOMENEK, Sandra, Kieffer, Antoine, Loriot, Catherine, Sauvegrain, Patrick, Julien, Jean Mario, Nguyen, Mai, Vitrac, Olivier, Gerometta, Massimiliano, Chagnon, Marie-Christine, Debeaufort, Frédéric, Karbowiak, Thomas, Thebault, Jacques, Ingénierie, Procédés, Aliments (GENIAL), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Association de Coordination Technique Agricole pour l'Industrie Agro-Alimentaire (ACTIA), Laboratoire National de Métrologie et d'Essais [Trappes] (LNE ), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Equipe NuTox (LNC - U1231) (NUTOX), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne (UB)-Université de Bourgogne (UB), Physico-Chimie de l'Aliment et du Vin (PCAV), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Ingénierie Procédés Aliments (GENIAL), and Institut National de la Recherche Agronomique (INRA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-AgroParisTech-Conservatoire National des Arts et Métiers [CNAM] (CNAM)
Subjects: Emballage biodégradable, [SPI]Engineering Sciences [physics], Cours en ligne, Formation continue, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract: National audience; FITNESS (2017-2020) est un projet financé dans le cadre du programme européen Erasmus+. Le but de ce projet est de mettre en place une plateforme virtuelle proposant librement des contenus interactifs (présentations, guides, quizz, webinaires, outils de calcul) en lien avec l’emballage alimentaire et les problématiques de conditionnement des aliments. L’objectif est d’offrir un contenu permettant de comprendre les principes et les enjeux (modules de base), et d’apprendre des techniques plus avancées permettant de maîtriser les impacts ou la sécurité sanitaires des matériaux utilisés (modules avancés). La plateforme s’adresse aussi bien aux étudiants, enseignants et professionnels de l’industriel agroalimentaire, de l’emballage ou de la chimie. La plateforme ne requiert aucun logiciel particulier et peut-être utilisée pour des cours magistraux, des travaux pratiques ou encore un apprentissage individuel. Les domaines couvrent les matériaux, l’aliment et ses contraintes, la physico-chimie, le conditionnement, les études d’impacts, la réglementation, jusqu’aux techniques avancées de modélisation. Le projet FITNESS rassemble 8 partenaires de 5 pays différents : Allemagne (Université Technique de Munich/Fraunhofer), Croatie (Université de Zagreb), Espagne (CSIC), France (ACTIA, LNE, AgroParisTech/INRA, AgroSup Dijon), Portugal (Université Catholique du Portugal). La plateforme FITNESS développée dans le cadre d’un projet open-source est disponible en ligne avec son contenu constamment enrichi (85 cours à terme) à l’adresse : https://fitness.agroparistech.fr. Les contenus sont actuellement testés et optimisés face à différents publics cibles.
Published: 2019

22. MEMOIRE DE STAGE De la décalcification de la coquille de l'oeuf à la minéralisation osseuse de l'embryon d'oiseau INRA UMR Biologie des Oiseaux et Aviculture (BOA) équipe Défense de l'OEuf, Valorisation et Evolution (DOVE) 37380 NOUZILLY

Author: Marine, Crepeau, Réhault-Godbert, Sophie, Département Génie Biologique, Université de Tours (UT), Biologie des Oiseaux et Aviculture (BOA), Institut National de la Recherche Agronomique (INRA)-Université de Tours (UT), and IUT Génie Biologique. Université de Tours (UT), Tours, FRA.
Subjects: [SDV]Life Sciences [q-bio], education
Abstract: Doctoral
Published: 2019

23. Typification of names and their taxonomic assignment within the Brachypodium distachyon complex (Poaceae)

Author: Véla, Errol, Bianchin, Nicolas, Pavon, Daniel, Croze, Thomas, Tison, Jean-Marc, Dias, Antonio, Catalan, Pilar, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), UMR CNRS IRD 6116 - IUT Avignon - Département Génie Biologique - Site Agroparc, BP 1207, Avignon Université (AU), Réseaux épuration et qualité des eaux (UR REBX), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), University of Zaragoza - Universidad de Zaragoza [Zaragoza], and Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud])
Subjects: Brachypodium distachyon, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Systematics and Taxonomy, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Poaceae, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy
Abstract: International audience; The Brachypodium distachyon complex includes three annual species, whose taxonomic identities have recently been demonstrated by cytological, molecular and morphological data. The initial taxonomic studies contained no nomenclatur-al revision of the twenty or so heterotypic synonyms at species rank, while the authors needed to describe two species as new. Indeed, the impossibility to study molecularly the herbarium type materials of these names precluded the analysis of these samples. An improvement of the morphological methods, including new criteria relevant both in situ and in herbar-ium, now allows us to do this nomenclatural synthesis, according to the current taxonomic treatment. Fresh French and Algerian materials from the three species have been calibrated with DNA genome size (2C) and molecular barcoding (ITS + tnrLF). We found that several valid previous names are available for B. stacei (whose distribution is more widespread than expected), of which Festuca rigida Roth is the older and yet has been used to combine Brachypodium rigidum (Roth) Link, the priority name of the species. Admissibility to propose a conservation or a rejection of one of these names is in debate. In order to fix their interpretation, nomenclatural types of a dozen other names will be designated at the end of this work, including lectotypes and neotypes. We found that the herbarium lectotype of Bromus distachyos L. (LINN93.48) corresponds to Brachypodium hybridum according to our current morphological analysis. In virtue of what a proposal to conserve and retypify the name Bromus distachyos L. could be a consensual solution in order to conserve the uses of both Bdistachyon and B. hybridum in their current senses. Field investigation also revealed other possible annual species of hybrid origin – at least one sensu Trachynia platystachya (Coss.) H. Scholz – but with an inversed parental combination than B. hybridum, which are currently investigated also genomically.
Published: 2019

24. Relevance of Interactions between Starch-based Coatings and Plum Fruit Surfaces: A Physical-Chemical Analysis

Author: Manfred Linke, Frédéric Debeaufort, Andrzej Lenart, Martin Geyer, Ewelina Basiak, Department of Horticultural Engineering [Leibniz-Institute for Agricultural Engineering and Bioeconomy (ATB)], Leibniz Institute for Agricultural Engineering and Bioeconomy, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Faculty of Food Sciences [Warsaw University of Life Sciences], and Warsaw University of Life Sciences (SGGW)
Subjects: Glycerol, Absorption of water, Starch, 02 engineering and technology, coatings, epicuticular wax, Epicuticular wax, Surface tension, Contact angle, lcsh:Chemistry, chemistry.chemical_compound, Coating, Spectroscopy, Fourier Transform Infrared, [SDV.IDA]Life Sciences [q-bio]/Food engineering, lcsh:QH301-705.5, Spectroscopy, Wax, starch, food and beverages, Prunus domestica, 04 agricultural and veterinary sciences, General Medicine, 021001 nanoscience & nanotechnology, 040401 food science, Computer Science Applications, visual_art, visual_art.visual_art_medium, [SDV.IB]Life Sciences [q-bio]/Bioengineering, surface properties, films, 0210 nano-technology, Materials science, engineering.material, Article, Catalysis, Inorganic Chemistry, 0404 agricultural biotechnology, Surface Tension, Physical and Theoretical Chemistry, Fourier transform infrared spectroscopy, Molecular Biology, Organic Chemistry, Whey Proteins, Chemical engineering, chemistry, lcsh:Biology (General), lcsh:QD1-999, Fruit, Waxes, Food Preservatives, Wettability, engineering, water relations
Abstract: In order to extend the shelf life of the fruit, improve appearance, and to keep all nutrition properties of the plum from diminishing, edible coatings comprised of wheat starch and wheat starch&ndash, whey protein isolate (in ratio 80/20) were created. Stand-alone films were produced to assess properties which helped to understand the phenomena occurring on the surface level of coated plums. The properties of coatings based on starch are similar to starch coatings containing oil because the natural epicuticular wax layer of plums merges with coating materials. Adding oil doubled the contact angle value and the dispersive component of the surface tension. The workings of adhesion and cohesion, spreading coefficient, water absorption, water content, and solubility in water of the films decreased. Similar processes were observed on the fruits&rsquo, surface. In appearance, the coating process is similar to polishing the plum surface for removing crystalline wax. The color parameters of coated fruits did not significantly change. Newly formed bonds or interactions established between starch, whey proteins, water, glycerol, and oil are displayed by Fourier transform infrared (FTIR) analysis. This work revealed how the interactions between the epicuticular wax on the fruit&rsquo, s surface and the hydrocolloid-based coatings affect the efficiency of the coatings.
Published: 2019

25. Effect of titanium dioxide film thickness on photocatalytic and bactericidal activities against Listeria monocytogenes

Author: Marion Barthomeuf, Justine Louis, Xavier Castel, Christine Pissavin, Martine Denis, Laurent Le Gendre, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Ploufragan - Plouzané, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Nantes Université (NU)-Université de Rennes 1 (UR1), IUT de Saint-Brieuc, Université de Rennes (UR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
Subjects: Anatase, Materials science, Scanning electron microscope, Surface Properties, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Biochemistry, [SPI.MAT]Engineering Sciences [physics]/Materials, chemistry.chemical_compound, Sputtering, Physical and Theoretical Chemistry, Titanium, Aqueous solution, General Medicine, 021001 nanoscience & nanotechnology, Photochemical Processes, Listeria monocytogenes, 0104 chemical sciences, Anti-Bacterial Agents, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, chemistry, Chemical engineering, Rutile, Titanium dioxide, Photocatalysis, 0210 nano-technology, Reactive Oxygen Species, Methylene blue
Abstract: International audience; Structural, microstructural and bactericidal surface properties of TiO -coated glass substrates elaborated by reactive Radiofrequency sputtering are investigated. As pathogenic bacteria in biofilms are a major concern in food industries due to their growing resistance to cleaning and sanitizing procedures, the development of photoactive surfaces exhibiting bactericidal properties is acknowledged as an effective approach to tackle bacterial contaminations. Our principal aim concerns the study of the photoactive top-layer thickness impact (from 80 nm to ~500 nm) on Listeria monocytogenes. Structural characterization of the TiO layers demonstrates that anatase and rutile phases are both present, depending on the film thickness. Photocatalytic activity of the samples has been evaluated through the degradation of aqueous methylene blue (MB) solutions under UVA light illumination for various time periods. The results show an efficiency rating increase according to TiO film thickness up to a threshold value close to 400 nm. Moreover, a significant decrease of the adherent bacteria number is observed after 20 min of UVA illumination. The quantitative study of the bactericidal activity associated with scanning electron microscopy observations of the postprocess bacteria damaged cells demonstrates the efficiency of the 240-nm-thick TiO coating sample. The results are correlated with the production of hydroxyl radicals during the process of photocatalysis.
Published: 2019

26. Reduced susceptibilities to biocides and resistance to antibiotics in food-associated bacteria following exposure to quaternary ammonium compounds

Author: P. Le Grandois, Martine Denis, Christophe Soumet, A. Le Roux, D. Méheust, Christine Pissavin, B. Frémaux, C. Feurer, Pierre Maris, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut du Porc (IFIP), Laboratoire de Ploufragan - Plouzané, IUT de Saint-Brieuc, and Université de Rennes (UR)
Subjects: 0301 basic medicine, désinfectant, Biocide, antibiotic resistance, Cefotaxime, medicine.drug_class, Disinfectant, 030106 microbiology, Antibiotics, Ceftazidime, résistance aux antibiotiques, Biology, Applied Microbiology and Biotechnology, susceptibility, Microbiology, 03 medical and health sciences, Benzalkonium chloride, Antibiotic resistance, Salmonella, Drug Resistance, Bacterial, ammonium quaternaire, Escherichia coli, medicine, bacteria, bactérie, 2. Zero hunger, biocide, General Medicine, Antimicrobial, Listeria monocytogenes, Anti-Bacterial Agents, 3. Good health, Quaternary Ammonium Compounds, food safety, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, sécurité alimentaire, 13. Climate action, Food Microbiology, quaternary ammonium, Benzalkonium Compounds, disinfectant, Disinfectants, Biotechnology, medicine.drug
Abstract: Aims Our aim was to assess the effects of step-wise exposure to didecyl dimethyl ammonium chloride (DDAC) on the antimicrobial (antibiotics and biocides) susceptibilities of food-associated bacterial strains. Methods and Results Adaptive responses of bacterial strains were investigated by exposing the strains daily to increasing sub-inhibitory concentrations of DDAC for 7 days. Following adaptation to DDAC, a 3-fold increase in the MIC values for this biocide was observed in 48% of the Escherichia coli and Listeria monocytogenes strains, and 3% of the Salmonella strains. Reduced susceptibility to other biocides was found with the most important increase in MIC for benzalkonium chloride (BC) and a commercial biocide formulation (Galox Horizon) containing DDAC and glutaraldehyde, for all species except Salmonella. Increase in antibiotic MIC values was more pronounced in Escherichia coli in terms of antibiotic numbers and of magnitude (from 4- to 32-fold increase) and, to a lesser extent, in Salmonella strains. Most of these strains had acquired resistance to ampicillin, cefotaxime, ceftazidime, chloramphenicol and ciprofloxacin. Conclusions The effects of exposure to DDAC on biocides and antibiotics susceptibilities depend upon the bacteria species. Significance and Impact of the Study Extensive use of DDAC at sub-inhibitory concentrations may lead to the development of antibiotic-resistant bacteria and may represent a public health issue This article is protected by copyright. All rights reserved.
Published: 2016

27. Brain BDNF levels are dependent on cerebrovascular endothelium-derived nitric oxide

Author: Nicolas Pernet, Hayat Banoujaafar, Alice Monnier, Christine Marie, Philippe Garnier, Anne Prigent-Tessier, Aurore Quirié, Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Pôle Rééducation - Réadaptation (Médecine Physique et Réadaptation) (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Male, 0301 basic medicine, medicine.medical_specialty, Nitric Oxide Synthase Type III, Endothelium, Hippocampus, Physical exercise, Tropomyosin receptor kinase B, Nitric oxide, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, physical exercise, nitric oxide, Neurotrophic factors, Physical Conditioning, Animal, Internal medicine, medicine, Animals, Receptor, trkB, Rats, Wistar, Cerebral Cortex, Brain-derived neurotrophic factor, biology, Chemistry, [SCCO.NEUR]Cognitive science/Neuroscience, General Neuroscience, brain-derived neurotrophic factor, TrkB, [ SDV.MHEP.CSC ] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Rats, Cerebrovascular Disorders, 030104 developmental biology, Endocrinology, medicine.anatomical_structure, carotid arteries occlusion, nervous system, [ SCCO.NEUR ] Cognitive science/Neuroscience, biology.protein, Endothelium, Vascular, Neuroscience, 030217 neurology & neurosurgery, Neurotrophin
Abstract: International audience; Scientific evidence continues to demonstrate a link between endothelial function and cognition. Besides, several studies have identified a complex interplay between nitric oxide (NO) and brain-derived neurotrophic factor (BDNF), a neurotrophin largely involved in cognition. Therefore, this study investigated the link between cerebral endothelium-derived NO and BDNF signaling. For this purpose, levels of BDNF and the phosphorylated form of endothelial NO synthase at serine 1177 (p-eNOS) were simultaneously measured in the cortex and hippocampus of rats subjected to either bilateral common carotid occlusion (n=6), physical exercise (n=6) or a combination of both (n=6) as experimental approaches to modulate flow-induced NO production by the cerebrovasculature. Tropomyosin-related kinase type B (TrkB) receptors and its phosphorylated form at tyrosine 816 (p-TrkB) were also measured. Moreover, we investigated BDNF synthesis in brain slices exposed to the NO donor glyceryl trinitrate. Our results showed increased p-eNOS and BDNF levels after exercise and decreased levels after vascular occlusion as compared to corresponding controls, with a positive correlation between changes in p-eNOS and BDNF (r=0.679). Exercise after vascular occlusion did not change levels of these proteins. Gyceryl trinitrate increased proBDNF and BDNF levels in brain slices, thus suggesting a possible causal relationship between NO and BDNF. Moreover, vascular occlusion, like exercise, resulted in increased TrkB and p-TrkB levels, whereas no change was observed with the combination of both. These results suggest that brain BDNF signaling may be dependent on cerebral endothelium-derived NO production.
Published: 2016

28. Bioactive films based on cuttlefish (Sepia officinalis) skin gelatin incorporated with cuttlefish protein hydrolysates: Physicochemical characterization and antioxidant properties

Author: Moncef Nasri, Frédéric Debeaufort, Hela Kchaou, Mourad Jridi, Nasreddine Benbettaïeb, École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), and Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
Subjects: 0106 biological sciences, Microbiology (medical), Cuttlefish, food.ingredient, Antioxidant, Polymers and Plastics, medicine.medical_treatment, 01 natural sciences, Gelatin, Hydrolysate, Biomaterials, Contact angle, 0404 agricultural biotechnology, food, Antioxidant activity, 010608 biotechnology, Ultimate tensile strength, medicine, Food science, Sepia, Safety, Risk, Reliability and Quality, Chemistry, 04 agricultural and veterinary sciences, 040401 food science, Edible films Functional properties, Cuttlefish skin proteins and hydrolysates, Glass transition, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Food Science
Abstract: International audience; The objective of this study was to apply cuttlefish (Sepia officinalis) skin protein isolate (CSPI) and hydrolysates (CSPH), using commercial Savinase® and Purafect® enzymes, as bioactive additives in the elaboration of gelatin-based films. CSPH and CSPI enriched films were colored and exhibited a higher UV-barrier properties compared to gelatin film. In addition, compared to CSPI added film, an increase of the glass transition temperature by 20 % and 4 %, respectively, for Purafect and Savinase hydrolysates enriched films was noted. However, elongation at break decreased significantly for CSPH incorporated films by 2.5-fold. The tensile strength was reduced by 28.2 % and 44.4 % for Purafect and Savinase hydrolysates added films, respectively. Furthermore, a decrease of water contact angle by 45 % and 51 % for films added with Purafect and Savinase hydrolysates, respectively, was displayed compared to gelatin film. Interestingly, CSPH enriched films also displayed higher antioxidant potential than control gelatin films evaluated by several in vitro assays.
Published: 2020

29. Enhancement of structural, functional and antioxidant properties of fish gelatin films using Maillard reactions

Author: Moncef Nasri, Nasreddine Benbettaïeb, Claire-Hélène Brachais, Marie-Laure Leonard, Thomas Karbowiak, Ola Abdelhedi, Frédéric Debeaufort, Hela Kchaou, Mourad Jridi, École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC), Ecole Supérieure d'Ingénieurs de Recherche en Matériaux et en Infotronique (ESIREM), and Université de Bourgogne (UB)
Subjects: food.ingredient, Antioxidant, DPPH, General Chemical Engineering, medicine.medical_treatment, [SDV]Life Sciences [q-bio], 02 engineering and technology, Gelatin, Contact angle, symbols.namesake, chemistry.chemical_compound, 0404 agricultural biotechnology, food, Physicochemical property, Antioxidant activity, medicine, Browning, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Aqueous solution, Chemistry, 04 agricultural and veterinary sciences, General Chemistry, 021001 nanoscience & nanotechnology, 040401 food science, Maillard reaction, Glucose/lysine ratio, symbols, Fish gelatin, 0210 nano-technology, Glass transition, Food Science, Nuclear chemistry, Cross-linking
Abstract: International audience; This study investigates the effect of Maillard reactions (MR) on the physico-chemical and biological properties of fish gelatin based edible films. Glucose was incorporated in gelatin film forming solutions at different glucose/lysine molar ratios: 0.5/1.0, 1.0/1.0 and 5.0/1.0. The MR was then induced by heating films at 90 °C for 24 h in dry conditions. Color changes and browning index measurements were used to pursue the MR kinetic. Results showed that the development of MR products was dependent on the glucose content and on the reaction time. Mechanical and thermal properties of treated films displayed an increase in tensile strength, elongation at break and glass transition temperature with the glucose addition and heating time. In addition, barrier properties against UV light and water resistance (water solubility and water contact angle measurements) increased due to the gelatin-glucose interactions generated at high temperature. The in vitro antioxidant activity of fish gelatin films modified by MR was studied by using DPPH free radical scavenging, total antioxidant activity and the reducing power. The antioxidant activity was significantly enhanced with mainly the glucose content and, in a less extent, with the reaction time. Consequently, fish-gelatin based films cross-linked through the Maillard reactions pathway are promising for food edible packaging materials to protect products toward oxidation.
Published: 2018

30. Influence of Maillard reaction and temperature on functional, structure and bioactive properties of fish gelatin films

Author: Nasreddine Benbettaïeb, Hela Kchaou, Mourad Jridi, Moncef Nasri, Frédéric Debeaufort, École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Antioxidant, food.ingredient, DPPH, General Chemical Engineering, medicine.medical_treatment, Thermal treatment, 01 natural sciences, Gelatin, Physicochemical, symbols.namesake, chemistry.chemical_compound, 0404 agricultural biotechnology, food, Antioxidant activity, [SDV.IDA]Life Sciences [q-bio]/Food engineering, 0103 physical sciences, medicine, Thermal stability, Crosslinking, Aqueous solution, ABTS, 010304 chemical physics, 04 agricultural and veterinary sciences, General Chemistry, Thermal and structural properties, 040401 food science, Maillard reaction, chemistry, symbols, Fish gelatin, Food Science, Nuclear chemistry
Abstract: International audience; This study aims to assess the effect of heating temperatures on structure, physicochemical and antioxidant properties of fish gelatin films crosslinked by the temperature and/or with glucose by the Maillard reaction.Glucose was incorporated at a 0.5 glucose/lysine molar ratio into the fish gelatin film forming solutions. The products of the Maillard reaction were generated by heating the films during 24 h in a temperature range of 90–130 °C. An enhancement of some films properties was obtained after the induction of the Maillard reaction. Indeed, the water solubility and wettability were reduced. On the contrary, a rise of color intensity, UV-barrier property, radical scavenging activities and iron reducing effects was observed. These enhancements occurred also without glucose addition thanks to the heating treatment, but to a lesser extend. In addition, an increase of thermal stability due to structural changes was revealed by means of XRD, TGA and DSC analyses. As evidenced by the different experiments used for the determination of the antioxidant activity (DPPH• and ABTS free radicals scavenging activity, reducing power and β-carotene bleaching inhibition) the antioxidant activity of films containing glucose displayed an optimum after being treated at 90 °C. On the contrary, it decreased or kept constant at higher temperatures, probably due to the degradation or further stages of Maillard reactions. Moreover, the thermal treatment alone (T ≥ 100 °C) can be a useful tool for enhancing the antioxidant activity of gelatin films. Finally, the Maillard reaction has a good potential to induce and generate bioactive compounds in gelatin films for food protection.
Published: 2019

31. Impact of functional properties and release kinetics on antioxidant activity of biopolymer active films and coatings

Author: Cadhla Tanner, Thomas Karbowiak, Frédéric Debeaufort, Philippe Cayot, Nasreddine Benbettaïeb, Procédés Alimentaires et Microbiologiques [Dijon] ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté ( UBFC ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Department of Microbiology and Environmental Research Institute (Cork, Ireland), University College Cork ( UCC ), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), and University College Cork (UCC)
Subjects: Antioxidant, food.ingredient, Coumaric Acids, DPPH, [SDV]Life Sciences [q-bio], medicine.medical_treatment, Kinetics, Chitosan-fish gelatin film, engineering.material, Gelatin, Antioxidants, Permeability, Analytical Chemistry, Ferulic acid, chemistry.chemical_compound, Functional and structural properties, Biopolymers, Caffeic Acids, 0404 agricultural biotechnology, food, Tensile Strength, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Fish Products, Caffeic acid, medicine, Organic chemistry, Chitosan, Free radical scavenging activity, [ SDV ] Life Sciences [q-bio], Release properties, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, 04 agricultural and veterinary sciences, General Medicine, Phenylethyl Alcohol, 040401 food science, Tyrosol, chemistry, engineering, Active packaging, Biopolymer, Food Science, Nuclear chemistry
Abstract: International audience; This work deals with the study of the release kinetics of some natural antioxidants (ferulic acid, caffeic acid and tyrosol) from chitosan-fish gelatin edible films immersed ethanol at 96%, as well as the kinetics of their antioxidant activity using the DPPH assay. The aim was to determine how film functional properties influence the release kinetic and antioxidant activity. The addition of antioxidants to chitosan-fish gelatin matrix decreased the water vapour permeability by more than 30%. The tensile strength (TS) increased up to 50% after the incorporation of antioxidants. Some molecular interactions between polymer chains and antioxidants were confirmed by FTIR where spectra displayed a shift of the amide-III peak. Films containing caffeic acid or a caffeic-ferulic acid mixture exhibited the highest radical scavenging activity, leading to a 90% antioxidant activity at equilibrium but the release rate controlled the efficacy of the system.
Published: 2018

32. Etude de la viabilité et de l’adaptation du biofilm de Listeria monocytogenes en croissance sur couches minces de TiO2

Author: Justine Louis, Marion Barthomeuf, Xavier Castel, Laurent LE GENDRE, Martine Denis, Christine Pissavin, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Nantes Université (NU)-Université de Rennes 1 (UR1), Castel, Xavier, IUT de Saint-Brieuc, Université de Rennes (UR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, [SPI.MAT] Engineering Sciences [physics]/Materials, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: National audience
Published: 2017

33. Activité antibactérienne de couches minces de TiO2 sur Listeria monocytogenes

Author: Louis, Justine, Barthomeuf, Marion, Bernard, Christelle, Castel, Xavier, Le Gendre, Laurent, Denis, Martine, Pissavin, Christine, IUT de Saint-Brieuc, Université de Rennes (UR), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Castel, Xavier, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Nantes Université (NU)-Université de Rennes 1 (UR1)
Subjects: [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, [SPI.MAT] Engineering Sciences [physics]/Materials, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: National audience
Published: 2017

34. Les fonctions du liquide amniotique de l'oeuf de poule (Gallus gallus) dans la protection antibactérienne de l'embryon : Caractérisation et identification des protéines liant l'héparine

Author: De Pauw, Marion, Réhault-Godbert, Sophie, Département Génie Biologique, Université de Tours (UT), Station de Recherches Avicoles (SRA), Institut National de la Recherche Agronomique (INRA), and IUT Génie biologique, Université de Tours (UT), Tours, FRA
Subjects: [SDV]Life Sciences [q-bio], [SDV.BA]Life Sciences [q-bio]/Animal biology, education, [SDV.BDD]Life Sciences [q-bio]/Development Biology
Abstract: Doctoral
Published: 2017

35. Effect of starch type on the physico-chemical properties of edible films

Author: Ewelina Basiak, Andrzej Lenart, Frédéric Debeaufort, Department of Food Engineering and Process Management [Warsaw University of Life Sciences], Faculty of Food Sciences [Warsaw University of Life Sciences], Warsaw University of Life Sciences ( SGGW ) -Warsaw University of Life Sciences ( SGGW ), Procédés Alimentaires et Physico-Chimie ( PAPC ), Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Warsaw University of Life Sciences (SGGW)-Warsaw University of Life Sciences (SGGW), Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Chemical Phenomena, Optical Phenomena, Starch, Amylopectin, 02 engineering and technology, Biochemistry, Morphological properties, Contact angle, Functional-properties, chemistry.chemical_compound, Structural Biology, Amylose, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Surface properties, Thermal resistance, Water content, Potato starch, Microstructure, Barrier properties, Moisture, Temperature, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, food and beverages, 04 agricultural and veterinary sciences, General Medicine, 021001 nanoscience & nanotechnology, 040401 food science, Sodium caseinate, Water sorption, 0210 nano-technology, Materials science, Water activity, Sorption isotherms, Mechanical-properties, Amylose content, Permeability, 0404 agricultural biotechnology, Starch-based films, Food Preservation, Botany, Molecular Biology, Mechanical Phenomena, Cassava starch, Physical-properties, Oxygen, Steam, chemistry, Chemical engineering, Wettability
Abstract: International audience; Food preservation is mostly related to packaging in oil-based plastics, inducing environmental problems, but this drawback could be limited by using edible/biodegradable films and coatings. Physical and chemical properties were assessed and reflect the role of the starch type (wheat, corn or potato) and thus that of the amylose/amylopectin ratio, which influences thickness, colour, moisture, wettability, thermal, surface and mechanical properties. Higher amylose content in films induces higher moisture sensitivity, and thus affects the mechanical and barrier properties. Films made from potato starch constitute a greater barrier for oxygen and water vapour though they have weaker mechanical properties than wheat and corn starch films. Starch species with higher amylose content have lower wettability properties, and better mechanical resistance, which strongly depends on the water content due to the hydrophilic nature of starch films, so they could be used for products with higher water activity, such as cheese, fruits and vegetables. It especially concerns wheat starch systems, and the contact angle indicates less hydrophilic surfaces (above 90) than those of corn and potato starch films (below 90). The starch origin influences optical properties and thickness: with more amylose, films are opalescent and thicker; with less, they are transparent and thinner.
Published: 2017

36. Effect of the state of water and relative humidity on ageing of PLA films

Author: Francesca Piasente, Alessandro Sensidoni, Jeancarlo R. Rocca-Smith, Eva Marcuzzo, Frédéric Debeaufort, Dominique Champion, Thomas Karbowiak, N. Chau, Claire-Hélène Brachais, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] (DI4A), Università degli Studi di Udine - University of Udine [Italie], Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Taghleef Industries, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] ( DI4A ), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] ( ICMUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Universitaire de Technologie - IUT Dijon/Auxerre, and Université de Bourgogne ( UB ) -Université de Bourgogne ( UB )
Subjects: Thermal properties, Polymers, 02 engineering and technology, Food chemistry, 010402 general chemistry, 01 natural sciences, Molecular weight distribution, Analytical Chemistry, Hydrolysis, chemistry.chemical_compound, Food packaging, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Relative humidity, Food science, Lactic Acid, PLA, Storage test, Water, Food Science, Medicine (all), Moisture, Chemistry, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Humidity, General Medicine, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Highly sensitive, Lactic acid, Degradation (geology), 0210 nano-technology
Abstract: International audience; Various types of food are now commercialized in packaging materials based on poly(lactic acid) (PLA) due to its eco-friendly nature. However, one of the main limitations related to PLA is its reactivity with water. For food applications, it is of critical importance to better understand the hydrolysis of PLA driven by water molecules either in liquid or in vapour state. This work focuses on the modifications of PLA induced by water when simulating contact with semi-dry foods (aw ≈ 0.5), high moisture foods (aw ≈ 1) and liquid foods (aw ≈ 1). This study undoubtedly shows that both the chemical potential of water and its physical state influence the hydrolytic degradation of PLA films. From a practical point of view, PLA packaging is very well suited for semi-dry foods, but is highly sensitive to high moisture and liquid foods.
Published: 2017

37. Experimental evidence of formation of transparent exopolymer particles (TEP) and POC export provoked by dust addition under current and high pCO2 conditions

Author: Louis, Justine, Pedrotti, Maria Luiza, Gazeau, Frédéric, Guieu, Cécile, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), IUT de Saint-Brieuc, Université de Rennes (UR), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Atmospheric Science, Carbon Sequestration, Environmental Engineering, Materials by Structure, Polymers, Materials Science, lcsh:Medicine, Oceanography, Sea Water, Bodies of water, Oceans, Mediterranean Sea, Pressure, Environmental Chemistry, Seawater, Organic Chemicals, Particle Size, lcsh:Science, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, Petrology, Sedimentary Geology, Ocean Acidification, Ecology and Environmental Sciences, lcsh:R, Dust, Geology, Carbon Dioxide, Hydrogen-Ion Concentration, Marine and aquatic sciences, Chemistry, Particulates, Atmospheric Chemistry, Mixtures, Physical Sciences, Earth Sciences, Engineering and Technology, Sediment, lcsh:Q, Antacids, Hydrology, Acid Deposition, Research Article
Abstract: International audience; The evolution of organic carbon export to the deep ocean, under anthropogenic forcing such as ocean warming and acidification, needs to be investigated in order to evaluate potential positive or negative feedbacks on atmospheric CO 2 concentrations, and therefore on climate. As such, modifications of aggregation processes driven by transparent exopolymer particles (TEP) formation have the potential to affect carbon export. The objectives of this study were to experimentally assess the dynamics of organic matter, after the simulation of a Saharan dust deposition event, through the measurement over one week of TEP abundance and size, and to evaluate the effects of ocean acidification on TEP formation and carbon export following a dust deposition event. Three experiments were performed in the laboratory using 300 L tanks filled with filtered seawater collected in the Mediterranean Sea, during two 'no bloom' periods (spring at the start of the stratification period and autumn at the end of this stratification period) and during the winter bloom period. For each experiment, one of the two tanks was acidified to reach pH conditions slightly below values projected for 2100 (~ 7.6–7.8). In both tanks, a dust deposition event of 10 g m-2 was simulated at the surface. Our results suggest that Saharan dust deposition triggered the abiotic formation of TEP, leading to the formation of organic-mineral aggregates. The amount of particulate organic carbon (POC) exported was proportional to the flux of lithogenic particles to the sediment traps. Depending on the season, the POC flux following artificial dust deposition ranged between 38 and 90 mg m-2 over six experimental days. Such variability is likely linked to the seasonal differences in the quality and quantity of TEP-precursors initially present in seawater. Finally, these export fluxes were not significantly different at the completion of the three experiments between the two pH conditions.
Published: 2017

38. Impact of the homogenization process on the structure and antioxidant properties of chitosan-lignin composite films

Author: Aurélie Lagorce-Tachon, Pascale Winckler, Camille Lauquin, Frédéric Debeaufort, Sandra Domenek, Kevin Crouvisier-Urion, Thomas Karbowiak, Wirongrong Tongdeesoontorn, Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, School of Agro-Industry [Mae Fah Luang University - Thaïlande], Mae Fah Luang University [Thaïlande] (MFU), Ingénierie, Procédés, Aliments (GENIAL), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB), AIC project LigninScave, Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut Universitaire de Technologie - IUT Dijon/Auxerre, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Mae Fah Luang University [Thaïlande] ( MFU ), Ingénierie Procédés Aliments ( GENIAL ), Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech-Conservatoire National des Arts et Métiers [CNAM] ( CNAM ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], and Université de Bourgogne ( UB ) -Université de Bourgogne ( UB )
Subjects: Renewable resources, DPPH, Composite number, 02 engineering and technology, Food chemistry, 010402 general chemistry, 01 natural sciences, Homogenization (chemistry), Lignin, Antioxidants, Analytical Chemistry, Chitosan, Pascalization, Contact angle, chemistry.chemical_compound, Sustainable material, [SDV.IDA]Life Sciences [q-bio]/Food engineering, High pressure processing, Chromatography, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Food Packaging, Water, General Medicine, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, Chemical engineering, Active packaging, Antioxidant, 0210 nano-technology, Oxidation-Reduction, Food Science
Abstract: 9th International Conference on Water in Food Conference Date : MAY 22-24, 2016 Conference Location : Leuven, BELGIUM; International audience; This work investigated the impact of two homogenization treatments, High Shear (HS) and High Pressure (HP), on the structure and antioxidant activity of chitosan-lignin bio-composite films. Laser light scattering analysis revealed that smaller lignin particles were obtained after HP processing, around 0.6 μm, compared to HS treatment, between 2.5 and 5 μm. Moreover, these particles were more homogeneously distributed in the chitosan film matrix after HP process, while some aggregates remained after HS treatment, as highlighted by two-photon microscopy. The surface hydrophobicity of the composite films, as measured by water contact angle, increased after the two homogenization treatments. Finally, the antioxidant activity of the composite films was determined using the DPPH· assay. No significant difference in the radical scavenging activity was noticeable, neither after HS nor HP processing. However, a migration of lignin residues from the film to the extraction medium was noticed, particularly for HP process.
Published: 2017

39. Techniques to measure sorption and migration between small molecules and packaging. A critical review

Author: Ashish Kadam, Thomas Karbowiak, Frédéric Debeaufort, Andrée Voilley, Procédés Alimentaires et Physico-Chimie (PAPC), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne (UB)-Université de Bourgogne (UB), and Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon)
Subjects: Bunsen solubility coefficient, Computer science, Food Contamination, Nanotechnology, [SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain, partition coefficient, Consumer safety, Diffusion, solubility coefficient, Humans, Measure (data warehouse), sorption, Nutrition and Dietetics, business.industry, Sorption, Chemical industry, packaging polymers, [SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biomolecules [q-bio.BM], Molecular Weight, Food packaging, Adsorption, Biochemical engineering, business, Plastics, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Agronomy and Crop Science, food packaging, Food Science, Biotechnology
Abstract: The mass transfer parameters diffusion and sorption in food and packaging or between them are the key parameters for assessing a food product's shelf-life in reference to consumer safety. This has become of paramount importance owing to the legislations set by the regulated markets. The technical capabilities that can be exploited for analyzing product–package interactions have been growing rapidly. Different techniques categorized according to the state of the diffusant (gas or liquid) in contact with the packaging material are emphasized in this review. Depending on the diffusant and on the analytical question under review, the different ways to study sorption and/or migration are presented and compared. Some examples have been suggested to reach the best possible choice, consisting of a single technique or a combination of different approaches. © 2014 Society of Chemical Industry
Published: 2014

40. Effect of hydration on molecular dynamics and structure in chitosan films

Author: Claire Madeleine-Perdrillat, Dominique Champion, Luc Delmotte, Frédéric Debeaufort, Cyril Vaulot, Thomas Karbowiak, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Institut de Science des Matériaux de Mulhouse ( IS2M ), Université de Haute-Alsace (UHA) Mulhouse - Colmar ( Université de Haute-Alsace (UHA) ) -Centre National de la Recherche Scientifique ( CNRS ), regional council of Burgundy, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Institut de Science des Matériaux de Mulhouse (IS2M), and Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)
Subjects: General Chemical Engineering, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Chitosan, Acetic acid, chemistry.chemical_compound, Differential scanning calorimetry, Coatings, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Organic chemistry, Glass transition temperature, Relative humidity, Relative-humidity, Conformation, chemistry.chemical_classification, Mobility, Residue carbonyl carbons, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Water, Polypeptides, General Chemistry, Polymer, 021001 nanoscience & nanotechnology, Solid-state nmr, 0104 chemical sciences, Amorphous solid, Nmr chemical-shift, Solvent, Glass-transition temperature, chemistry, Chemical engineering, Crystal-structure, 0210 nano-technology, Glass transition, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Diffraction, Food Science
Abstract: International audience; Water- mediated modifications in chitosan films were investigated from both molecular mobility and structure perspectives. Chitosan films, prepared by the solvent casting method in acetic acid medium, were exposed to relative humidity ranging from 11% to 92% at 25 degrees C. This work reveals that chitosan film exhibits a different structure below and above a water content of around 15% (w/w wet basis). A marked increase in mobility was evidenced at this point from proton relaxation and paramagnetic probe rotational mobility. The influence of such mobility modification was further studied by differential scanning calorimetry but no classical plasticizing effect of the water on the glass transition of chitosan was detected. The same singular point was observed when the water content increased, but no regular decrease of the Tg values was noticed. However, after heating above 80 degrees C, the polymer film lost its initial characteristics, consecutively to acetic acid release and structural reorganization of the polymer network. It gave rise to the presence in such chitosan films of two distinct amorphous domains associated to a wide change in the baseline due to the glass transition phenomenon. Such instability originates from heterogeneities at the molecular scale.
Published: 2016

41. Capteur fil-chaud MEMS à haut rapport d'aspect pour des mesures d'écoulements turbulents en proche paroi, avec une grande sensibilité et un faible consommation d'énergie

Author: Ghouila-Houri, Cécile, Claudel, J., Gerbedoen, J.C., Gallas, Q., Garnier, E., Merlen, A., Viard, R., Talbi, Abdelkrim, Pernod, Philippe, Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique (LIA LICS/LEMAC), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE), Département Génie Biologique, Université de Lille, Sciences et Technologies, and Fluiditech (Thurmelec)
Subjects: MEMS, ANALYSE TURBULENCE, CAPTEUR FROTTEMENT PARIÉTAL, MEMS HOT-WIRE SENSORS, Hardware_INTEGRATEDCIRCUITS, WALL SHEAR-STRESS SENSOR, CAPTEUR FIL CHAUD, TURBULENCE ANALYSIS, FLOW CONTROL, SEPARATION DETECTION, [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Abstract: We present an effcient and high-sensitive micro-electro-mechanical system (MEMS) thermal hot-wire based flow sensor for near wall flow measurement. By combining substreate-free wire structure and mechanical support by silicon oxide micro-bridges, the sensor wires achieve a very high aspect ratio, superior to 300, with 1 mm long for only 3 µm wide. The sensor is designed for compromising conventional hot-film and hot-wire sensors and to achieve high sensitivity to the near wall flow velocity, fast response time and flow direction detection. The sensor can be mounted flush to the wall for technical application, sush as flow control and separation detection, or for understanding near wall shear flows. We present here the design and micro-fabrication, then electrical and thermal characterizations and finally the first experiments in a turbulent boundary layer wind tunnel.
Published: 2016

42. Impact of corona treatment on PLA film properties

Author: Eric Lesniewska, Jeancarlo R. Rocca-Smith, Francesca Piasente, Thomas Karbowiak, Alessandro Sensidoni, Eric Bourillot, Dominique Champion, Eva Marcuzzo, Olivier Heinz, Frédéric Debeaufort, Pauline Vitry, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] ( DI4A ), Università degli Studi di Udine - University of Udine [Italie], Taghleef Industries, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), European Social Fund - Friuli Venezia Giulia Region FP1340303009, RMB plateau of UMR PAM for mechanical, goniometry and thermal analyses and Marie Laure Leonard, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] (DI4A), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Materials Chemistry2506 Metals and Alloys, Biodegradable polymer, Corona treatment, Food packaging, Poly (lactic acid) – PLA, Surface modification, Condensed Matter Physics, Mechanics of Materials, Polymers and Plastics, Thermogravimetric analysis, Materials science, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, Nanocomposites, Crystallinity, Polymer surface modification, Differential scanning calorimetry, X-ray photoelectron spectroscopy, law, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Polylactic acid films, Materials Chemistry, Atmospheric plasma, Poly (lactic acid) - PLA, Composite material, Crystallization, Nanocomposite, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Mesophase, Food, 0210 nano-technology
Abstract: International audience; Different types of PLA films treated by corona are currently available in the market for coating or printing applications. However, data relative to its impact on PLA film properties are scarce and do not generally consider industrial scale production. The objective of this study was to assess the impact of corona treatment on the surface, structure and barrier properties of bi-oriented PLA films produced at industrial scale. Thus, a comparative study between corona treated (CT) and non-corona treated (NCT) PLA films was conducted.The surface of films was studied using Attenuated Total Reflectance Fourier Infrared Spectroscopy (ATR-FTIR), X-ray Photoelectron Spectroscopy (XPS), Atomic Force Microscopy (AFM) and goniometry measurements. The structure of films was analyzed with thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and uniaxial tensile analysis. The barrier properties of films to three gases (He, O-2, CO2) were also determined.This study unambiguously revealed that corona treatment led to modifications in both surface and bulk of PIA films. In particular, surface analysis displayed the well-known capability of corona treatment to chemically and physically modify the surface of PLA films at the nanometer scale by increasing polarity and roughness. The structural analysis displayed a slight increase in the crystallinity degree and slight modifications in mechanical properties of films. This probably originated from temperature increase associated to corona treatment, which favored physical changes (e.g. relaxation, crystallization) of a part of the bi-orientated PIA chains, and therefore highlights the importance of such an industrial step on the film properties for packaging applications. As a result of these modifications, the barrier properties of films to three gases (He, O-2, CO2) are also slightly improved.
Published: 2016

43. Antimicrobial activity of stainless steel with a modified TiN upperlayer on meat related contaminants

Author: Laurent Le Gendre, Frédéric de Nardi, Xavier Castel, Arnaud Castillo, David Delaunay, Roland Talibart, Christine Pissavin, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), IUT de Saint-Brieuc, Université de Rennes (UR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Nantes Université (NU)-Université de Rennes 1 (UR1)
Subjects: Materials science, Metallurgy, chemistry.chemical_element, 02 engineering and technology, [CHIM.CATA]Chemical Sciences/Catalysis, Contamination, 010402 general chemistry, 021001 nanoscience & nanotechnology, Antimicrobial, 01 natural sciences, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, 0104 chemical sciences, [SPI.MAT]Engineering Sciences [physics]/Materials, chemistry, 0210 nano-technology, Tin, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

44. Anti-biofilm UV-active TiO2 thin layers to improve food safety

Author: Barthomeuf, Marion, Policarpo, Nyedna, Raymond, Perrine, Castel, Xavier, Le Gendre, Laurent, Denis, Martine, Pissavin, Christine, Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Castel, Xavier, Université de Nantes (UN)-Université de Rennes 1 (UR1), IUT de Saint-Brieuc, Université de Rennes (UR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, [SPI.MAT] Engineering Sciences [physics]/Materials, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: International audience
Published: 2016

45. Brain-derived neurotrophic factor of the cerebral microvasculature: a forgotten and nitric oxide-dependent contributor of brain-derived neurotrophic factor in the brain

Author: Alice Monnier, Christine Marie, Catherine Gondcaille, Céline Demougeot, Aurore Quirié, Nathalie Bertrand, Anne Prigent-Tessier, Stéphane Savary, Philippe Garnier, Pôle Rééducation - Réadaptation (Médecine Physique et Réadaptation) (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), Laboratoire Bio-PeroxIL. Biochimie du Peroxysome, Inflammation et Métabolisme Lipidique ( Bio-PeroxIL ), Université de Bourgogne ( UB ), Fonctions et dysfonctions épithéliales - UFC (EA 4267) ( FDE ), Université de Franche-Comté ( UFC ), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Laboratoire Bio-PeroxIL. Biochimie du Peroxysome, Inflammation et Métabolisme Lipidique (Bio-PeroxIL), Université de Bourgogne (UB), Fonctions et dysfonctions épithéliales - UFC (EA 4267) (FDE), Université de Franche-Comté (UFC), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)
Subjects: medicine.medical_specialty, hypertension, Physiology, Blotting, Western, Physical exercise, 030204 cardiovascular system & hematology, Nitric Oxide, Polymerase Chain Reaction, Nitric oxide, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Chaps, Enos, Neurotrophic factors, Internal medicine, Rats, Inbred SHR, medicine, Animals, Rats, Wistar, Brain-derived neurotrophic factor, cerebral endothelium, biology, exercise, business.industry, brain-derived neurotrophic factor, Brain, Endothelial Cells, biology.organism_classification, Immunohistochemistry, Rats, Endocrinology, chemistry, nervous system, [ SDV.NEU ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Microvessels, biology.protein, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], business, Neuroscience, Perfusion, 030217 neurology & neurosurgery, Neurotrophin
Abstract: International audience; AIM: Evidence that brain-derived neurotrophic factor (BDNF), a neurotrophin largely involved in cognition, is expressed by cerebral endothelial cells led us to explore in rats the contribution of the cerebral microvasculature to BDNF found in brain tissue and the link between cerebrovascular nitric oxide (NO) and BDNF production.METHODS: Brain BDNF protein levels were measured before and after in situ removal of the cerebral endothelium that was achieved by brain perfusion with a 0.2% CHAPS (3-[(3-cholamidopropyl) dimethylammonio]-1-propane sulphonate) solution. BDNF protein and mRNA levels as well as levels of endothelial NO synthase phosphorylated at serine 1177 (P-eNOSser1177 ) were measured in cerebral microvessel-enriched fractions. These fractions were also exposed to glycerol trinitrate. Hypertension (spontaneously hypertensive rats) and physical exercise training were used as experimental approaches to modulate cerebrovascular endothelial NO production.RESULTS: CHAPS perfusion resulted in a marked decrease in brain BDNF levels. Hypertension decreased and exercise increased P-eNOSser1177 and BDNF protein levels. However, BDNF mRNA levels that were increased by exercise did not change after hypertension. Finally, in vitro exposure of cerebral microvessel-enriched fractions to glycerol trinitrate enhanced BDNF production.CONCLUSION: These data reveal that BDNF levels measured in brain homogenates correspond for a large part to BDNF present in cerebral endothelial cells and that cerebrovascular BDNF production is dependent on cerebrovascular endothelial eNOS activity. They provide a paradigm shift in the cellular source of brain BDNF and suggest a new approach to improve our understanding of the link between endothelial function and cognition.
Published: 2016

46. Plasticization of amorphous polystyrene by volatile organic compounds

Author: Ashish A. Kadam, Thomas Karbowiak, Andree Voilley, Jean-Pierre Gay, Frederic Debeaufort, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), ANR-10-ALIA-0009,SafeFoodPack Design,Conception raisonnée d'emballages alimentaires plastiques sûrs(2010), Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), and ANR-10-ALIA-0009,SafeFoodPack Design,Conception raisonnée d'emballages alimentaires plastiques sûrs ( 2010 )
Subjects: Materials science, Polymers and Plastics, Amorphous polystyrene, Analytical chemistry, Polymer-diluent systems, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Ethylbenzene, chemistry.chemical_compound, Differential scanning calorimetry, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Materials Chemistry, Organic chemistry, Volatile organic compounds, Dependence, Molecular interpretation, Behavior, polyvinylchloride, Plasticization, Plasticizer, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Sorption, General Chemistry, Glass-transition temperatures, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Toluene, 0104 chemical sciences, 3. Good health, Amorphous solid, chemistry, Blends, Mixtures, Mathematical modeling, Polystyrene, 0210 nano-technology, Glass transition
Abstract: The plasticizing effect of 4 model volatile compounds (n-hexane, toluene, p-xylene, and ethylbenzene), able to be sorbed on polystyrene (PS) was studied. A large weight fraction range was investigated (up to 0.35) using differential scanning calorimetry. Mathematical modeling, using Fox, Kelly-Bueche, Chow and Gordon-Taylor models, was performed to model the behavior of the glass transition temperature of PS after VOC sorption. A strong plasticization of PS was evidenced by a significant reduction in the glass transition temperature of the binary mixtures (T gm). Among the four studied molecules, the linear one, n-hexane, displayed a better plasticizing efficiency than the aromatic ones, which lay in the same range. Indeed, a 15 % (w w−1) n-hexane content in PS decreased the T gm by 84 K. The Gordon-Taylor model was the best model to fit the experimental data for all the volatile organic compounds tested.
Published: 2016

47. Tuning the Functional Properties of Polysaccharide-Protein Bio-Based Edible Films by Chemical, Enzymatic, and Physical Cross-Linking

Author: Benbettaïeb , Nasreddine, Gay , Jean-Pierre, Karbowiak , Thomas, Debeaufort , Frédéric, Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), and Université de Bourgogne (UB)-Université de Bourgogne (UB)
Subjects: Functional properties, Barrier properties, Electron-beam irradiation, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, Transglutaminase treatment, Mechanical-properties, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Wheat gluten films, Gamma-irradiation, Caseinate films, Biomedical applications, Chemical cross-linking, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Fish gelatin, Enzymatic cross-linking, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Heating and irradiation cross-linking, Protein-polysaccharide films, Water-vapor permeability
Abstract: International audience; Among natural biopolymers, polysaccharides and proteins are very promising for biodegradable and edible wraps with different characteristics, so that their formulations can be tailor-made to suit the needs of a specific commodity. Films prepared from polysaccharides have good gas barrier properties but exhibit lower resistance to moisture compared to protein films (edible) or polylactide films (biodegradable). Protein-based films show better mechanical and oxygen barrier properties compared to polysaccharide films. For that reason, film performances may be enhanced by producing blend systems, where hydrocolloids (mixtures of proteins and/or polysaccharides) form a continuous and more cohesive network. However, the lower water barrier properties of hydrocolloid films and their lower mechanical strength in comparison with synthetic polymers limit their applications in food packaging. Therefore, the enhancement of biopolymer film properties has been studied to attain appropriate applications. This review provides an extensive synthesis of the improvement of the properties of edible polysaccharide-protein films by way of various chemical, enzymatic, and physical methods. These methods primarily aim at improving the mechanical resistance. They also permit to ameliorate the water and gas barrier properties and related functional properties.
Published: 2016

48. Effect of oil lamination between plasticized starch layers on film properties

Author: Ewelina Basiak, Andrzej Lenart, Frédéric Debeaufort, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Warsaw University of Life Sciences (SGGW), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB), Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Warsaw University of Life Sciences ( SGGW ), Institut Universitaire de Technologie - IUT Dijon/Auxerre, and Université de Bourgogne ( UB ) -Université de Bourgogne ( UB )
Subjects: tensile, Materials science, Water-vapor barrier, Starch, Surface Properties, Mechanical-properties, Permeability, Analytical Chemistry, law.invention, Contact angle, Fatty Acids, Monounsaturated, chemistry.chemical_compound, Oxygen permeability, 0404 agricultural biotechnology, law, Plasticizers, Coatings, Polymer chemistry, Lamination, Ultimate tensile strength, [SDV.IDA]Life Sciences [q-bio]/Food engineering, medicine, Plant Oils, Rapeseed oil, Behavior, Energy, Protein, Wheat starch, Plasticizer, [ SDV.IDA ] Life Sciences [q-bio]/Food engineering, Water, Structure, 04 agricultural and veterinary sciences, General Medicine, 040401 food science, Edible films, Surface, chemistry, Chemical engineering, Emulsion, Interfacial energy, Emulsions, Swelling, medicine.symptom, Permeabilities, Food Science
Abstract: International audience; To reduce the hygroscopic character of biodegradable starch-based films, rapeseed oil was incorporated by lamination (starch-oil-starch 3-layers technique). The lipid lamination followed by starch solution casting step induced an emulsion type structure of dried films. Composite films are more opalescent and glossier than fatty free starch films. For all the films, structure is heterogeneous in the cross-section only. Adding fat induced a twice decrease of the tensile strength. Thermal gravimetry analysis did not show differences between films with and without oil. Lipid reduced the moisture absorption particularly at higher RH as well as the surface swelling index, when water droplet contact occurred. Addition of lipids always decreases the contact angle for all liquid tested, except for water. Surface affinity of films for liquids less polar that water increased with rapeseed oil addition. The addition of rapeseed oil significantly reduces water vapour and oxygen permeability.
Published: 2016

49. Mentesh Tepe, an early settlement of the Shomu-Shulaveri Culture in Azerbaijan

Author: Laurence Bouquet, Modwene Poulmarc'H, Bertille Lyonnet, Elsa Jovenet, Antoine Courcier, Farhad Guliyev, Denis Guilbeau, Norbert Benecke, Emmanuel Baudouin, Michel Fontugne, Caroline Hamon, Laure Pecqueur, Gaëlle Bruley-Chabot, Anaïck Samzun, Pascal Raymond, Emeline Degorre, Gaëlle Le Dosseur, Laurence Astruc, Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), Ministère de la Culture et de la Communication (MCC)-École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS), Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Du village à l’État au Proche et Moyen-Orient (Vepmo), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Préhistoire et Technologie (PréTech), Centre National de la Recherche Scientifique (CNRS)-Université Paris Nanterre (UPN), Proche-Orient, Caucase, Iran : Diversités et Continuités (PROCLAC), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Collège de France (CdF (institution))-Centre National de la Recherche Scientifique (CNRS), Baku State University, Baku AZ1141, 23 Z. Khalilov St, Baku, Azerbaijan, Institut national de recherches archéologiques préventives (Inrap), Dauphine Recherches en Management (DRM), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochrononologie Traceurs Archéométrie (GEOTRAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), EVEHA (Etudes et valorisations archeologiques), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Institut national de recherches archéologiques préventives (Inrap)-Centre National de la Recherche Scientifique (CNRS), Université Paris Nanterre (UPN)-Centre National de la Recherche Scientifique (CNRS), Chercheur indépendant, Department of Natural Sciences, German Archaeological Institute (DAI), Trajectoires - UMR 8215, Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS), ARCHEORIENT - Environnements et sociétés de l'Orient ancien (Archéorient), Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS), Deutsches Bergbau-Museum Bochum (DBM), DBM, ANR-09-FRAL-0002,Ancient Kura,Cultures anciennes du Sud Caucase: paléo-environnement, mode de vie et exploitation des ressources dans la Moyenne Vallée de la Kura, du 6e au 3e millénaire(2009), ANR-12-FRAL-0011,Kura in Motion!,'Kura in Motion!' Hommes, plantes et animaux dans leur dynamique au sein de la moyenne vallée de la Kura, 6e-3e millénaires BCE.(2012), École Pratique des Hautes Études (EPHE), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), École pratique des hautes études (EPHE)-Collège de France (CdF)-Institut National des Langues et Civilisations Orientales (Inalco)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie des Processus Biologiques (LCPB), Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physiologie Cellulaire et Moléculaire des Plantes (UR5), Université Pierre et Marie Curie - Paris 6 (UPMC), Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC)-Université Paris Nanterre (UPN)-Université Panthéon-Sorbonne (UP1), The German Archaeological Institute, Université Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS), Proche-Orient, Caucase, Iran : Diversités et Continuités ( PROCLAC ), École pratique des hautes études ( EPHE ) -Collège de France ( CdF ) -Institut National des Langues et Civilisations Orientales ( Inalco ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Chimie des Processus Biologiques ( LCPB ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Collège de France ( CdF ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physiologie Cellulaire et Moléculaire des Plantes ( UR5 ), Université Pierre et Marie Curie - Paris 6 ( UPMC ), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] ( LSCE ), Université de Versailles Saint-Quentin-en-Yvelines ( UVSQ ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay-Centre National de la Recherche Scientifique ( CNRS ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ), Archéologies et Sciences de l'Antiquité ( ArScAn ), Université Panthéon-Sorbonne ( UP1 ) -Université Paris Nanterre ( UPN ) -Ministère de la Culture et de la Communication ( MCC ) -Centre National de la Recherche Scientifique ( CNRS ), Préhistoire et Technologie ( PréTech ), Université Paris Nanterre ( UPN ) -Centre National de la Recherche Scientifique ( CNRS ), Université Panthéon-Sorbonne ( UP1 ) -Centre National de la Recherche Scientifique ( CNRS ), ARCHEORIENT - Environnements et sociétés de l'Orient ancien ( Archéorient ), Université Lumière - Lyon 2 ( UL2 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [ SDU.OCEAN ] Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, 010506 paleontology, 010504 meteorology & atmospheric sciences, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, [SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology, Chalcolithic, 01 natural sciences, Archaeology, Shomu-Shulaveri Culture, [SHS]Humanities and Social Sciences, Geography, Bronze Age, Stage (stratigraphy), Inhumation, [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment, Caspian Sea level mobility, Climate change, Neolithic, Settlement (litigation), Domestication, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Earth-Surface Processes
Abstract: International audience; Excavations at Mentesh Tepe, western Azerbaijan, have unearthed Neolithic levels dated to an early stage of the Shomu-Shulaveri Culture, with a specific material culture and several inhumations among which a multiple burial. At that stage, already a full domestication of plants and animals is evident. Many questions have been raised concerning the origins of this culture, and its end is also still obscure. Relations with societies in the north-Mesopotamian area have again recently been evidenced at its beginnings. Mentesh Tepe, with its exceptional succession of occupations from the Neolithic to the Early Bronze Age, could help providing some clues for the links between the Neolithic and the Chalcolithic periods. The site is presented here under different points of views (architecture, burials, material culture) but in a preliminary stage since many studies are still in progress. Questions are raised about the climate and the apparent absence of pre-and post-Shomu-Shulaveri Culture possibly due to silting or erosion processes linked with the mobility of the Caspian Sea level.
Published: 2016

50. UV-active TiO2 thin layers to improve food safety in food industry

Author: Barthomeuf, Marion, POLICARPO, Nyedna, Raymond, Pauline, Castel, Xavier, Le Gendre, Laurent, Denis, Martine, Pissavin, Christine, Castel, Xavier, IUT de Saint-Brieuc, Université de Rennes (UR), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Département Génie Biologique / IUT de Saint-Brieuc, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Université de Nantes (UN)-Université de Rennes 1 (UR1)
Subjects: [SPI.MAT] Engineering Sciences [physics]/Materials, [SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: International audience
Published: 2016

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