12 results on '"Cereda, Marney P."'
Search Results
2. Modified Cassava Starches’ Identification through Mid-Infrared Spectroscopy and Exploratory Analysis
- Author
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de Macêdo, Isaac Yves Lopes, primary, Dupuy, Nathalie, additional, Brito, Vitor H. dos S., additional, Gil, Eric de Souza, additional, Silva, Giovanna N. de M. e, additional, Moreno, Emily K. G., additional, Demiate, Ivo M., additional, and Cereda, Marney P., additional
- Published
- 2023
- Full Text
- View/download PDF
3. Use of infrared analysis to identify genetic resources from isolated producers in Brazil as a tool to improve cassava competitiveness in the starch market
- Author
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Vilpoux, Olivier F., primary, Sharbel, Timothy F., additional, Posso‐Terranova, Andrés, additional, Hoogerheide, Eulalia S. S., additional, and Cereda, Marney P., additional
- Published
- 2020
- Full Text
- View/download PDF
4. Behavioral characterization and alternative control methods of the Bamboo borer [Dinoderus minutus Fabricius (Coleoptera: Bostrichidae)]
- Author
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da Silva, Rudieli M., Ribeiro, Nathalia P., Rodrigues, Carla da S., Pelvine, Raíra A., Rondon, Josimara N., and Cereda, Marney P.
- Subjects
bacterias entomopatógenas ,almidón ,starch ,barrenador de bambú ,wood borer ,bacteria ,entomopathogen ,plaga ,plague - Abstract
Bamboo wood is a widely used raw material for the manufacture of special furniture and handicraft products, and can also be used in construction and architecture. In Brazil, the usage of this material has gained great space in the last decades. However, it can suffer from the attack of the bamboo borer [Dinoderus minutus Fabricius (Coleoptera: Bostrichidae)], causing damages and making the use of this wood unviable. Hence, the purpose of this work was to verify the behavior of D. minutus in culms of three bamboo species (Bambusa vulgaris, B. vulgaris var. vittata e B. multiplex) in two seasons of the year, one dry and one rainy season, in addition to testing alternative methods of insect control. In relation to the behavior, we verified the damages caused by the larvae from the oviposition of D. minutus in nodes and internodes of the bamboo species. While the alternative control methods were based on the spraying of the bacterium Proteus mirabilis, as an entomopathogenic agent, on B. vulgaris nodes, and the immersion treatment of nodes of same bamboo species in aqueous extract of Dracaena arborea leaves, and in vinasse. In relation to the insect behavior, there was a higher activity (consumption and reproduction) during the rainy season and a higher attack preference for the species B. vulgaris. Regarding the alternative control methods, it was verified a better performance of the treatments with P. mirabilis and D. arborea, since they provided a mortality index superior to 90% of the insects. RESUMEN La madera de bambú es una materia prima ampliamente utilizada para la fabricación de muebles especiales y productos de arte sanía. Además es empleada en la construcción civil y arquitectura. En Brasil, el uso de este material ha aumentado en las últimas décadas. Sin embargo, puede sufrir el ataque del barrenador de bambú Dinoderus minutus Fabricius (Coleoptera: Bostrichidae), causando daños e inutilizando la madera. El objetivo de este trabajo fue caracterizar el comportamiento de D. minutus en cañas de tres especies de bambú (Bambusa vulgaris, B. vulgaris var. vittata y B. multiplex) en dos estaciones del año, una seca y otra lluviosa, además de probar métodos alternativos de control de insectos. En relación con el comportamiento, verificamos los daños causados por las larvas a partir de la oviposición de D. minutus en nudos y entrenudos de las especies de bambú. Los métodos de control alternativos se basaron en la fumigación de la bacteria Proteus mirabilis, como agente entomopatógeno; en los nudos de B. vulgaris y el tratamiento de inmersión de nudos de la misma especie de bambú en extracto acuoso de hojas de Dracaena arborea y en vinaza. En relación con el comportamiento de los insectos, hubo una mayor actividad (consumo y reproducción) durante la temporada de lluvias y una mayor preferencia de ataque para la especie B. vulgaris. Respecto a los métodos de control alternativos, se verificó un mejor desempeño de los tratamientos con P. mirabilis y D. arborea, ya que proporcionaron un índice de mortalidad superior al 90% de los insectos.
- Published
- 2019
5. GRANULOMETRY AND ENERGY CONSUMPTION AS INDICATORS OF DISINTEGRATION EFFICIENCY IN A HAMMER MILL ADAPTED TO EXTRACTING ARROWROOT STARCH (Maranta arundinacea) IN COMPARISON TO STARCH EXTRACTION FROM CASSAVA
- Author
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Branco, Fabiano P., primary, Naka, Marco H., additional, and Cereda, Marney P., additional
- Published
- 2019
- Full Text
- View/download PDF
6. Use of infrared analysis to identify genetic resources from isolated producers in Brazil as a tool to improve cassava competitiveness in the starch market.
- Author
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Vilpoux, Olivier F., Sharbel, Timothy F., Posso‐Terranova, Andrés, Hoogerheide, Eulalia S. S., and Cereda, Marney P.
- Subjects
CASSAVA starch ,GERMPLASM ,CASSAVA ,STARCH - Abstract
Summary: Our objective was to verify the potential of identifying different starches in Brazilian landraces of cassava using near and medium infrared analyses. The survey was conducted on 132 landraces collected throughout the Cerrado, Pantanal and Amazon biomes, in the Brazilian state of Mato Grosso, including 10 commercial starches. The results are reflective of selection for different genetic variants in small isolated producers. Infrared analysis enables rapid identification of this material and is the first step in identifying starches with different properties. The results demonstrate the potential of MIR analyses for in situ evaluation, an additional option for identifying important varieties and value the development of efforts made by small producers, whose landraces have special and economically important properties. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
7. Líquido da casca da castanha-de-caju (LCC) como repelente do carunchodo-bambu Bambusa vulgaris.
- Author
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Soares da Silveira, Edilson, Alves Machado, Alexandre, Favero, Silvio, Railda Roel, Antônia, and Pascoli Cereda, Marney
- Abstract
Copyright of Ciência Florestal (01039954) is the property of Ciencia Florestal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
8. Análisis del color, transparencia e infra-rojo de las películas del almidón modificada de yuca
- Author
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Henrique, Celina M, Cereda, Marney P, and Dupuy, Nataly
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transparency ,Manihot esculenta ,filmes ,biodegradável ,packaging ,transparencia ,Modified starch ,Almidón modificado ,color ,embalagens ,embalaje ,infravermelho ,cor ,Manihot esculenta Crantz ,biodegradable ,films ,Amido modificado ,infra-red ,infra-rojo ,transparência ,películas - Abstract
O objetivo desta pesquisa, foi caracterizar filmes de fécula modificada de mandioca, quanto a cor, transparência e espectrode infra vermelho, na expectativa de permitir a avaliação de seu uso no setor hortifrutícola. Foram elaborados filmes comsuspensões gelificadas de féculas naturais modificadas, incluindo carboximetilamido (CMA) de baixa e alta viscosidade,cross link (pré gelatinizado modificado) e esterificada, com 3 e 5% de massa seca (MS). As soluções filmogênicasforam secas por 24 hs/40 ºC sobre suporte de plexiglass. Logo após a secagem, os filmes foram acondicionados a 20 ºCe 64% de umidade relativa, equivalente a atividade de água de 0,645 por 10 dias, para análises posteriores. Os filmes assimobtidos foram comparados pelos métodos de espectrofotometria de cor, transparência e infravermelho com os filmes depolicloreto de vinila (PVC) de baixa densidade com espessura de 0,03 mm. Todos os filmes demonstraram luminosidade etransparência semelhante ao filme de PVC. The objective of this research was to characterize modified cassava starch films in relation to color, transparency and infra-red spectrum in order to assess their use in the horticulture sector. Films were made with gelatinized suspensions of modified Brazilian starches, including high and low viscosity carboxymethylamide (CMA), as cross link (modified pre-gelatinized) and sterified starches, with 3 and 5% dry matter (MS). The filmogenic solutions were dried for 24 hs/40oC on a plexiglass support. Shortly after drying, films were stored at 20 ºC and 64% relative humidity, equivalent to 0,645 water activity, for 10 days, for later analysis. Films thus obtained were compared, by the methods of color spectrophotometry, transparency and infrared, with low density polyvinyl chloride films (PVC) 0,03 mm thick. All films showed luminosity and transparency similar to PVC film. La presente investigación tiene por objeto, caracterizar laspelículas del almidón modificado de yuca, en relación al color,transparencia y espectro de infra-rojo, en la expectativa depermitir la evaluación de su utilización en el sectorhortofrutícola. Fueron elaborados películas con suspensionesgelatinosa de almidón naturales modificadas, incluyendocarboximetilamido (CMA) de baja y alta viscosidad, como cross link (pre- gelatinizado modificado) y esterificado, con3 e 5 % de masa seca (MS). Las soluciones filmogénicasfueron secadas por 24 hs/40 ºC sobre un soporte de plexiglass. Luego después del secado, los filmes fueron acondicionadosa 20 ºC y 64% de humedad relativa, equivalente a la actividaddel agua de 0,645 por 10 días, para los análisis posteriores.Las películas así obtenidas fueron comparadas por losmétodos de espectrofotometría de color, transparencia e infrarojo con las películas de policloreto de vinilo (PVC) de bajadensidad con espesura de 0,03 mm. Todas las películasmostraron luminosidad y transparencia semejante a la películade PVC.
- Published
- 2007
9. HIDROLISADO DE FÉCULA DE MANDIOCA COMO ADJUNTO DE MALTE NA FABRICAÇÃO DE CERVEJA: AVALIAÇÃO QUÍMICA E SENSORIAL
- Author
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VENTURINI FILHO Waldemar G. and CEREDA Marney P.
- Subjects
mandioca ,syrup ,Beer ,lcsh:TX341-641 ,xarope ,adjunto ,cassava ,lcsh:Technology (General) ,adjunct ,lcsh:T1-995 ,maltose ,lcsh:Nutrition. Foods and food supply ,cerveja - Abstract
Em virtude da progressiva substituição dos adjuntos amiláceos pelos xaropes com alta concentração de maltose nas cervejarias brasileiras, o presente trabalho teve por objetivo comparar hidrolisados de milho e de mandioca, como adjunto de malte, na fabricação de cerveja tipo Pilsen, em escala de laboratório. Os hidrolisados foram produzidos a partir de amido de milho e fécula de mandioca, sendo que na liqüefação e sacarificação da fração amilácea destes produtos foram utilizadas, respectivamente, as enzimas comerciais Termamil (alfa amilase bacteriana) e Fungamil (alfa amilase fúngica). Na fabricação das cervejas, a proporção de malte e hidrolisado foi de 2 para 1, na base do extrato. O mosto foi produzido pelo processo de infusão e após resfriamento e clarificação foi inoculado com levedura cervejeira de baixa fermentação. A fermentação transcorreu a 10 °C até 90% de atenuação do extrato aparente fermentável. As cervejas foram engarrafadas e, em seguida, maturadas a 0 °C, por 14 dias. Terminado o processo de fabricação, as cervejas foram analisadas química e sensorialmente. A semelhança na composição química dos hidrolisados de milho e de mandioca refletiu na composição química dos mostos e das cervejas. Não houve diferença estatística entre os mostos e entre as cervejas testadas para todos os parâmetros químicos analisados. Também, não existiu diferença sensorial entre as cervejas produzidas com hidrolisado de milho e hidrolisado de mandioca. Concluiu-se que a fécula de mandioca apresenta potencial de uso como matéria prima para a fabricação de xarope de maltose de uso cervejeiro e que há elevada probabilidade de sucesso no uso desse xarope para a fabricação de cervejas.The brazilians breweries replace progressively starchy adjuncts by sugary liquid adjuncts made with maize. Thus, the objective of present work was saccharify cassava and maize and use them as malt adjunct on Pilsen beer production, in laboratory scale. The syrups (35 °Brix) were produced with cassava and maize starch by utilisation of Termamil and Fungamil commercial enzymes. The beers were made using malt and syrups in proportion of 2: 1, on extract basis. The wort was produced by infusion process, after cooling and clarification it was inoculated with lager yeast. The fermentation temperature was 10°C and the fermentative process was finished with 90% of attenuation. After that, the beers were bottled and lagered at 0°C by 14 days. The beers were chemically and sensorially analysed. The similarity of chemical composition of cassava and maize syrups reflected on the chemical composition of worts and beers. The chemical analysis showed there was not statistical difference between wort produced with cassava syrup and wort made with maize syrups. As well, the chemical analysis showed beers made with these adjuncts did not present statistical difference. The sensory analysis realised by triangular test, showed beer made with cassava syrup and beer produced with maize syrup were equal. It was concluded that cassava starch presents potential utilisation as raw material for brew maltose syrup production.
- Published
- 1998
10. HIDROLISADO DE FÉCULA DE MANDIOCA COMO ADJUNTO DE MALTE NA FABRICAÇÃO DE CERVEJA: AVALIAÇÃO QUÍMICA E SENSORIAL
- Author
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Venturini Filho, Waldemar Gastoni [UNESP], CEREDA, Marney P. [UNESP], and Universidade Estadual Paulista (Unesp)
- Subjects
mandioca ,syrup ,adjunct ,Beer ,maltose ,xarope ,adjunto ,cassava ,cerveja - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:52:56Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T18:52:56Z (GMT). No. of bitstreams: 0 Previous issue date: 1998-05-01 Made available in DSpace on 2013-09-30T19:44:24Z (GMT). No. of bitstreams: 0 Previous issue date: 1998-05-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:11:39Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T15:11:39Z (GMT). No. of bitstreams: 0 Previous issue date: 1998-05-01 Em virtude da progressiva substituição dos adjuntos amiláceos pelos xaropes com alta concentração de maltose nas cervejarias brasileiras, o presente trabalho teve por objetivo comparar hidrolisados de milho e de mandioca, como adjunto de malte, na fabricação de cerveja tipo Pilsen, em escala de laboratório. Os hidrolisados foram produzidos a partir de amido de milho e fécula de mandioca, sendo que na liqüefação e sacarificação da fração amilácea destes produtos foram utilizadas, respectivamente, as enzimas comerciais Termamil (alfa amilase bacteriana) e Fungamil (alfa amilase fúngica). Na fabricação das cervejas, a proporção de malte e hidrolisado foi de 2 para 1, na base do extrato. O mosto foi produzido pelo processo de infusão e após resfriamento e clarificação foi inoculado com levedura cervejeira de baixa fermentação. A fermentação transcorreu a 10 °C até 90% de atenuação do extrato aparente fermentável. As cervejas foram engarrafadas e, em seguida, maturadas a 0 °C, por 14 dias. Terminado o processo de fabricação, as cervejas foram analisadas química e sensorialmente. A semelhança na composição química dos hidrolisados de milho e de mandioca refletiu na composição química dos mostos e das cervejas. Não houve diferença estatística entre os mostos e entre as cervejas testadas para todos os parâmetros químicos analisados. Também, não existiu diferença sensorial entre as cervejas produzidas com hidrolisado de milho e hidrolisado de mandioca. Concluiu-se que a fécula de mandioca apresenta potencial de uso como matéria prima para a fabricação de xarope de maltose de uso cervejeiro e que há elevada probabilidade de sucesso no uso desse xarope para a fabricação de cervejas. The brazilians breweries replace progressively starchy adjuncts by sugary liquid adjuncts made with maize. Thus, the objective of present work was saccharify cassava and maize and use them as malt adjunct on Pilsen beer production, in laboratory scale. The syrups (35 °Brix) were produced with cassava and maize starch by utilisation of Termamil and Fungamil commercial enzymes. The beers were made using malt and syrups in proportion of 2: 1, on extract basis. The wort was produced by infusion process, after cooling and clarification it was inoculated with lager yeast. The fermentation temperature was 10°C and the fermentative process was finished with 90% of attenuation. After that, the beers were bottled and lagered at 0°C by 14 days. The beers were chemically and sensorially analysed. The similarity of chemical composition of cassava and maize syrups reflected on the chemical composition of worts and beers. The chemical analysis showed there was not statistical difference between wort produced with cassava syrup and wort made with maize syrups. As well, the chemical analysis showed beers made with these adjuncts did not present statistical difference. The sensory analysis realised by triangular test, showed beer made with cassava syrup and beer produced with maize syrup were equal. It was concluded that cassava starch presents potential utilisation as raw material for brew maltose syrup production. UNESP UNESP
- Published
- 1998
11. Evaluation of protein extraction methods to obtain protein concentrate from cassava leaf
- Author
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Coldebella, Priscila F., primary, Gomes, Simone D., additional, Evarini, Janete A., additional, Cereda, Marney P., additional, Coelho, Sílvia R. M., additional, and Coldebella, Anderson, additional
- Published
- 2013
- Full Text
- View/download PDF
12. Spores of Beauveria bassianaand Trichoderma lignorumas a bioinsecticide for the control of Atta cephalotes
- Author
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Daza, Fabian Felipe Fernandez, Roman, Ginna Rodriguez, Rodriguez, Marino Valencia, Vargas, Ivan Andres Gonzalez, Heano, Heiber Cardenas, Cereda, Marney Pascoli, and Mulet, Raul Alberto Cuervo
- Abstract
Background: The leafcutter ant (Atta cephalotes) is associated with losses in the agricultural sector, due to its defoliating activity; for its control, biological, mechanical and chemical methods have been developed, the latter associated with adverse effects on human and environmental health. This research validated in the field for the control of the leafcutter ant (A. cephalotes) using a mixture of Beauveria bassianaand Trichoderma lignorumspores. Methods: The effectiveness from the combination of spores of B. bassianaand T. lignorumwith an initial concentration of 2?×?10
9 spores/ml, in the following proportions of B.bassiana and T. lignorum, A (1:1), of each fungus. It was evaluated within the university campus, comparing it with two commercial formulations, Mycotrol (B. bassiana) and Mycobac (T. lignorum). Additionally, this formulation was evaluated in 49 nests distributed 16 in 14 locations in Colombia. The formulation application was carried out by direct application, using a pump at a speed of 10 ml/m2 . The effectiveness was estimated from the reduction of the flow of ants, evaluating the statistically significant differences using the ANOVA and Tukey-test. Results: Effective control of 90% of the nests was observed in the field phase in 60 days, except in nests with areas >?50 m2 that were located in regions with high rainfall (annual average precipitation above 7000 mm), such as Buenaventura. Conclusions: In this work, it was demonstrated that the combination of B. bassianaand T. lignorumspores represent a viable alternative for the control of the leafcutter ant, in which the effectiveness is related to several factors, including the size of the nest and the rainfall in the area.- Published
- 2019
- Full Text
- View/download PDF
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