95 results on '"Helm, Cristiane"'
Search Results
2. The Functional Carbonated Beverage Properties of Guabiroba Juice Using the Ice Fraction from Gravitational Block Freeze Concentration.
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Prestes, Amanda Alves, Marafon, Karine, Carvalho, Ana Caroline Ferreira, Andrade, Dayanne Regina Mendes, Helm, Cristiane Vieira, de Gois, Jefferson Santos, Monteiro Wanderley, Bruna Rafaela da Silva, Amboni, Renata Dias de Mello Castanho, and Prudencio, Elane Schwinden
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VITAMIN C ,FLUID foods ,PHENOLS ,NON-alcoholic beverages ,FUNCTIONAL beverages - Abstract
The freeze concentration of liquid foods generates a by-product that has few academic studies and no industrial application: the ice fraction of each concentration stage. Sugar-free carbonated beverages were produced from the addition of 20% residual ice fraction (stage 1—I120 and stage 2—I220) of the gravitational block freeze concentration process, and the result was compared with a control beverage produced with 20% guabiroba juice (J20). The physicochemical properties, carotenoid content, total phenolic content (TPC), vitamin C, and antioxidant activity were analyzed for all samples. There was no significant difference between J20 and I220 for the total solid content and total soluble solids. For the total phenolic compounds (TPC), the I220 content was 151.3% higher than that of the original juice J20 and, for antioxidant activity, 295.8% higher for ABTS and 130.2% higher for DPPH. The I220 beverage presented 159% more vitamin C content than the beverage containing juice (J20). The same behavior was observed for each carotenoid content, with 168% more for the I220 sample. The total color difference revealed no difference visible to the naked eye for the three formulated beverages (∆E < 3.0; p < 0.05). The promising results of the bioactive compounds from guabiroba juice retained in the ice fraction can add value to this process waste in the formulation of new products due to the remaining functional appeal of the original fruit matrix. [ABSTRACT FROM AUTHOR]
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- 2024
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3. The Addition of Concentrated Cold-Pressed Guabiroba Juice to Yogurts: Effects on the Physicochemical Analyses, Antioxidant Activity, Carotenoid Content, Total Phenolic Compounds, and Mineral Profile.
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Prestes, Amanda Alves, Andrade, Dayanne Regina Mendes, Canella, Maria Helena Machado, Haas, Isabel Cristina da Silva, Helm, Cristiane Vieira, de Gois, Jefferson Santos, Block, Jane Mara, Wanderley, Bruna Rafaela da Silva Monteiro, Amboni, Renata Dias de Mello Castanho, Cruz, Adriano Gomes da, Pimentel, Tatiana Colombo, and Prudencio, Elane Schwinden
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PHENOLS ,FERMENTED milk ,VITAMIN C ,BIOACTIVE compounds ,DAIRY products ,YOGURT - Abstract
Cold-pressed guabiroba juice was subjected to block freeze concentration. The best process efficiency (PE) was obtained for the first stage of freeze concentration compared to the second stage (C2; 57.47%). Yogurt formulations were carried out with the concentrated juice from stage 1 (C1) (0, 10% (I10), and 15% (I15)). For all concentrated juices (C1 and C2), ice fractions from the first and second stages (I1 and I2), and yogurts (control, I10, and I15), physicochemical analyses were performed and antioxidant activity, carotenoid content, total phenolic content (TPC), and mineral profile were determined. Total soluble solids contents for the concentrated juices increased by 1.56 to 2 times compared to the cold-pressed guabiroba juice. Furthermore, an increase in TPC and carotenoids was observed. For the I15 sample, TPC increased by 4,556%, with the control and increased carotenoids, vitamin C, and mineral profiles (Ca, K, Mg, and Na) contributing to increased antioxidant activity. The addition of concentrated guabiroba juice to yogurt formulations enhances the functional property of this dairy product by maintaining most of the bioactive compounds during cold-pressing associated with the freeze concentration. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Bioactive Compounds Concentrations and Stability in Leaves of Ilex paraguariensis Genotypes
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Benedito, Débora Caroline Defensor, primary, Stuepp, Carlos André, additional, Helm, Cristiane Vieira, additional, Liz, Marcus Vinicius de, additional, Miranda, Amanda Coelho de, additional, Imoski, Rafaela, additional, Lavoranti, Osmir José, additional, and Wendling, Ivar, additional
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- 2023
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5. Improving Enzymatic Saccharification of Peach Palm (Bactris gasipaes) Wastes via Biological Pretreatment with Pleurotus ostreatus
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de Cássia Spacki, Kamila, primary, Novi, Danielly Maria Paixão, additional, de Oliveira-Junior, Verci Alves, additional, Durigon, Daniele Cocco, additional, Fraga, Fernanda Cristina, additional, dos Santos, Luís Felipe Oliva, additional, Helm, Cristiane Vieira, additional, de Lima, Edson Alves, additional, Peralta, Rosely Aparecida, additional, de Fátima Peralta Muniz Moreira, Regina, additional, Corrêa, Rúbia Carvalho Gomes, additional, Bracht, Adelar, additional, and Peralta, Rosane Marina, additional
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- 2023
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6. Enzymatic activities and analysis of a mycelium-based composite formation using peach palm (Bactris gasipaes) residues on Lentinula edodes
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de Lima, Gabriel Goetten, Schoenherr, Zaira Chiodini Pedri, Magalhães, Washington Luiz Esteves, Tavares, Lorena Benathar Ballod, and Helm, Cristiane Vieira
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- 2020
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7. Whey block freeze concentration aiming a functional fermented lactic beverage with the addition of probiotic and guabiroba pulp (Campomanesia xanthocarpa O. Berg), a native Brazilian fruit
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia, Universitat Politècnica de Catalunya. HorPTA - Horticultura: producció, transformació i aprofitament, Dias de Mello Castanho, Renata, Machado Canella, Maria Helena, Hernández Yáñez, Eduard, Prudêncio, Elane Schwinden, Silveira, Matheus Fermino, Vieira Helm, Cristiane, Mendes Andrade, Dayanne Regina, Toaldo Fedrigo, Isabela Maia, Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia, Universitat Politècnica de Catalunya. HorPTA - Horticultura: producció, transformació i aprofitament, Dias de Mello Castanho, Renata, Machado Canella, Maria Helena, Hernández Yáñez, Eduard, Prudêncio, Elane Schwinden, Silveira, Matheus Fermino, Vieira Helm, Cristiane, Mendes Andrade, Dayanne Regina, and Toaldo Fedrigo, Isabela Maia
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The scientific importance involved in this study was the use of whey, a co-product of the cheese industry, and its performance during the freeze concentration process. Moreover, the best-concentrated whey from the freeze concentration process, about the total solids, proteins, and mineral contents, was used to prepare two functional fermented lactic beverages. Therefore, whey was subjected to the freeze concentration in blocks with gravitational thawing. Process performance indicated better yields and efficiency for the second stage of freeze concentration. Concentrated whey 2 was used to prepare two fermented lactic beverages added with probiotics: one without adding guabiroba pulp (control) and a beverage incorporated with 10% guabiroba pulp. Containing guabiroba pulp was not enough to modify the total solids, proteins, and mineral contents. However, it decreased pH values, changed the color to an orange hue, and decreased luminosity. The fermented lactic beverage added with probiotic and 10% guabiroba pulp showed 1.61× more phenolic compounds and an increase of 164% for each evaluated carotenoid content compared with the control beverage., Postprint (published version)
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- 2023
8. Planting seasons and environments in initial field establishment of yerba mate clonal cultivars in Southern Brazil.
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de Aguiar, Natália Saudade, Gabira, Mônica Moreno, Santin, Delmar, Deschamps, Cicero, Helm, Cristiane Vieira, and Wendling, Ivar
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SPRING ,AUTUMN ,MATE plant ,CULTIVARS ,TREE planting - Abstract
Despite the great economic importance of yerba mate (Ilex paraguariensis A. St.-Hil.), information about clonal plantations and planting conditions of this tree is still scarce. Thus, we evaluated initial field establishment of five clonal yerba mate cultivars, planted at three seasons of the year (summer, autumn, and spring) in a shaded environment, and in the autumn, we also established blocks in a full sunlight environment, to compare both cultivation environments. We evaluated plants at 3, 6, 9, and 12 months after planting, counting the surviving plants, shoots number, and measuring height and canopy diameter. At 12 months we also analyzed the caffeoylquinic acids (CQA) contents in mature leaves from different environments. Plant survival and growth were not affected by planting seasons. Cultivars Aupaba and BRS 409 had the highest survival rates in all seasons evaluated. The shaded environment provided greater survival and growth than full sunlight, also showing higher CQA levels in the leaves. Clonal cultivars Aupaba, BRS 408, and BRS 409 presented higher growth in both environments. The severe drought in the first year may have affected survival; however, growth was considered satisfactory and plants’ initial establishment was better in the shaded environment. [ABSTRACT FROM AUTHOR]
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- 2023
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9. Araucaria angustifolia and the pinhão seed: Starch, bioactive compounds and functional activity - a bibliometric review.
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Graziele Castrillon, Rafaela, Vieira Helm, Cristiane, and Luiz Mathias, Alvaro
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BIOACTIVE compounds , *GLUTEN-free foods , *BIBLIOMETRICS , *SEEDS , *DIETARY fiber , *FUNCTIONAL foods , *GLYCEMIC index , *WEB databases , *STARCH - Abstract
Araucaria angustifolia characterizes mixed Ombrophilous Forests. This Paraná pine tree has been of great economic, cultural and social importance for southern Brazil. Its cutting is restricted, as it is threatened with extinction and the use of its seed has been encouraged. This study highlights scientific research on this conifer by bibliometric analysis and reviews trends in new research on its seed and some of its food applications. The Web of Science© database revealed 620 scientific articles and the bibliometric analysis through VOSviewer showed the worldwide interest in growing. The increase in research in the areas of silviculture, phytoscience and ecology reflects the concern with the preservation of "Matas das Araucárias". Concurrently, research in food science and technology has increased, as pine nut seed can produce starch-rich food flour with low glycemic response and source of dietary fiber and some minerals. Also, along with its husk, provide bioactive compounds with potential application in the special food, active/smart and reinforced packaging and even pharmacological industries. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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10. Araucaria angustifolia and the pinhão seed: Starch, bioactive compounds and functional activity - a bibliometric review
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Castrillon, Rafaela Graziele, primary, Helm, Cristiane Vieira, additional, and Mathias, Alvaro Luiz, additional
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- 2023
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11. Full Exploitation of Peach Palm (Bactris gasipaes Kunth): State of the Art and Perspectives
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de Cássia Spacki, Kamila, primary, Corrêa, Rúbia Carvalho Gomes, additional, Uber, Thaís Marques, additional, Barros, Lillian, additional, Ferreira, Isabel C. F. R., additional, Peralta, Rosely Aparecida, additional, de Fátima Peralta Muniz Moreira, Regina, additional, Helm, Cristiane Vieira, additional, de Lima, Edson Alves, additional, Bracht, Adelar, additional, and Peralta, Rosane Marina, additional
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- 2022
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12. Stability of Leaf Yerba Mate (Ilex paraguariensis) Metabolite Concentrations over the Time from the Prism of Secondary Sexual Dimorphism.
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Rakocevic, Miroslava, Maia, Aline de Holanda Nunes, de Liz, Marcus Vinicius, Imoski, Rafaela, Helm, Cristiane Vieira, Cardozo Junior, Euclides Lara, and Wendling, Ivar
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MATE plant ,SEXUAL dimorphism ,PLANT metabolites ,CHLOROGENIC acid ,CAFFEIC acid ,COMPOSITION of leaves ,SECONDARY metabolism ,ANIMAL offspring sex ratio - Abstract
The yerba mate leaf metabolic composition depends mainly on genetics, sex, plant and leaf age, light intensity, harvest time, climate, and fertilization. In yerba mate, the secondary sexual dimorphism (SSD), the leaf metabolic SSD association with the frequency of leaf harvests, and the stability of the metabolites in the two genders over the years is not known. It was hypothesized that (1) the SSD in the metabolite segregation would differ among the winter and summer growth pauses, (2) females would show lower metabolite concentrations, and (3) the metabolic concentrations would show stability over the years on the same plants, not obligatorily associated with the SSD stability expression. Variations in theobromine, caffeine, chlorogenic and caffeic acids were correlated to the increasing time since the previous harvest, especially in females. However, the frequency of the metabolic SSD were associated with the studied growth pauses, rejecting the first hypothesis. No regular gender superiority was expressed in the yerba mate leaf secondary metabolites, rejecting our second hypothesis, even though more cases of superior female metabolite accumulation were identified. The stability of the leaf protein was preserved over the four years, with no SSD cases observed. The leaf methylxanthines were time stable, while the decrease in the phenolic content occurred with tree aging, which was not associated with the SSD expression, partially proving our third hypothesis. The novelty was related to the time stability of the leaf metabolic SSD observed over the winter and summer growth pauses, and over the four consecutive years without a regular expression of the male- or female-biased concentrations in the studied metabolites. To demystify the random metabolic gender responses in yerba mate, gender-orientated experiments with a high number of tree repetitions must be conducted, including clonal plants grown in various environments, such as monoculture and agroforestry, or on plantations in different climates and altitudes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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13. Lipid profile and glycemic response of rats fed on a semi-purified diet supplemented with Agaricus brasiliensis mushroom/ Perfil lipidico e resposta glicemica de ratos alimentados com uma racao semi-purificada suplementada com o cogumelo Agaricus brasiliensis
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Henriques, Gilberto Simeone, Helm, Cristiane Vieira, Busato, Ana Paula, and Simeone, Maria Lucia Ferreira
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- 2016
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14. Pinhão Seeds and Coats: Drying Process and Flour Characterization for Application in Food Products
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Costa, Alessandra, primary, Timm, Thaynã Gonçalves, additional, Helm, Cristiane Vieira, additional, and Tavares, Lorena Benathar Ballod, additional
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- 2022
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15. Characterization of Gels and Films Produced from Pinhão Seed Coat Nanocellulose as a Potential Use for Wound Healing Dressings and Screening of Its Compounds towards Antitumour Effects
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de Lima, Tielidy A. de M., primary, de Lima, Gabriel Goetten, additional, Chee, Bor Shin, additional, Henn, Jeferson G., additional, Cortese, Yvonne J., additional, Matos, Mailson, additional, Helm, Cristiane V., additional, Magalhães, Washington L. E., additional, and Nugent, Michael J. D., additional
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- 2022
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16. Modelos matemáticos para secagem de biomassa com cascas de palmeira-real colonizadas com micélio de shiitake
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Timm, Thaynã Gonçalves, primary, Weise, William Ferreira, additional, Arantes, Matheus Samponi Tucunduva, additional, Helm, Cristiane Vieira, additional, and Tavares, Lorena Benathar Ballod, additional
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- 2022
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17. Assessment of Nano Cellulose from Peach Palm Residue as Potential Food Additive: Part II: Preliminary Studies
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Andrade, Dayanne Regina Mendes, Mendonça, Márcia Helena, Helm, Cristiane Vieira, Magalhães, Washington L. E., de Muniz, Graciela Ines Bonzon, and Kestur, Satyanarayana G.
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- 2015
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18. Cultivo experimental de Basidiomicetos causadores de podridão branca da região Amazônica em diferentes substratos
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Sales-Campos, Ceci, da Silva Pessoa, Leise, de Jesus, Maria Aparecida, Helm, Cristiane Vieira, Martins, Olívia Gomes [UNESP], Andrade, Meire, Instituto Nacional de Pesquisas da Amazônia (INPA), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Universidade Estadual Paulista (UNESP), and Faculdade Gran Tietê
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Fungi ,Temperature ,Mycelial growth ,Sawdust - Abstract
Made available in DSpace on 2022-04-28T19:52:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado do Amazonas Instituto Nacional de Pesquisas da Amazônia Technology for the culture of fungi in the Amazon region is highly deficit, even though the region has great potentiality. Current study analyzes the experimental production of new strains of Amazon basidiomycetes at different substrates and temperatures. Fungus strains, Pleurotus ostreatus, Boletus sp., Agaricales, Auricularia sp., Pleurotus djamor var. roseus and Agaricomycetes were retrieved from the laboratory for the Culture of Eatable Fungi of COTI/INPA. Prime matter for the preparation of the substrate were wood wastes: marupá (Simarouba amara) and cajuí (Anacardium giganteum), and agroindustrial wastes: pseudostem of the banana tree (Musa sp.) of the variety Thap Maeo. Randomized assay design comprised a factorial scheme 4 x 6 x 2 (4 substrates, 6 strains and 2 temperatures), with 3 replications each, totaling 144 experimental units. Mycelial growth was measured daily, at two temperatures (25 and 30°C), till total colonization of substrates by the fungi. Loss of organic matter (LOM %) was also evaluated. Data underwent analysis of variance ANOVA, and means compared by Tukey's test (5%). In most treatments polynomial lines showed a similar growth with hikes in some cases. In the case of LOM PMO (%), substrate of cajuí, Thap Maeo and mixture of bran had the highest rates. The two temperatures were positive for the strains development. All strains investigated had an affinity by tested substrates in vitro and could be employed in further studies. Laboratório de Cultivo de Fungos Comestíveis Instituto Nacional de Pesquisas da Amazônia (INPA), AM Instituto Nacional de Pesquisas da Amazônia (INPA), AM Laboratório de Patologia da Madeira Instituto Nacional de Pesquisas da Amazônia (INPA), AM Embrapa Florestas, PR Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), SP Faculdade Gran Tietê Departamento de Engenharia Agronômica, Barra Bonita (SP) Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), SP
- Published
- 2022
19. Comparative detoxification of Remazol Rrilliant Blue R by free and immobilized laccase of Oudemansiella canarii
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Uber, Tha��s Marques, Buzzo, Ana J��lia dos Reis, Scaratti, Gidiane, Amorim, Su��len Maria, Helm, Cristiane Vieira, Maciel, Giselle Maria, Peralta, Rosely Aparecida, de F��tima Peralta Muniz Moreira, Regina, Bracht, Adelar, and Peralta, Rosane Marina
- Abstract
A laccase from Oudemansiella canarii was immobilized using the crosslinked enzyme aggregate (CLEA) methodology and applied in the degradation of the anthraquinonic dye Remazol Brilliant Blue R (RBBR). The immobilized laccase was superior to the free laccase in both thermal and storage stabilities. Both immobilized and free laccase decolourized 100 mg/L RBBR within 24 h at 30 ��C and pH 5.0, but the former was still efficient in degrading the dye after at least 6 cycles. The relationship between the decolorization rate and the RBBR concentration obeyed Michaelis���Menten kinetics, with KM of 0.126 �� 0.044 mmol/L and Vmax of 1.412 �� 0.295 ��mol/min for free laccase and KM of 0.159 �� 0.050 mmol/L and Vmax of 1.214 �� 0.242 ��mol/min for immobilized laccase. Fourier transform infra-red spectroscopy (FTIR) and mass spectrometry allowed to conclude that the O. canarii laccase acts not only on the chromophore group of the dye, but that it also cleaves other covalent bonds, causing an effective fragmentation of the molecule. The Microtox assay detected a significant diminution in toxicity, a finding corroborated by the phytotoxicity test performed with lettuce seeds. Our results indicate that the immobilized laccase from O. canarii could be useful in biological strategies aiming at degrading unwanted dyes in the environment.
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- 2022
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20. Cultivo experimental de Basidiomicetos causadores de podridão branca da região Amazônica em diferentes substratos
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Sales-Campos, Ceci, primary, Pessoa, Leise da Silva, additional, Jesus, Maria Aparecida de, additional, Helm, Cristiane Vieira, additional, Martins, Olívia Gomes, additional, and Andrade, Meire Cristina Nogueira de, additional
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- 2022
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21. Development of peach palm fibrous flour from the waste generated by the heart of palm agribusiness/Desenvolvimento de farinha fibrosa de pupunheira a partir do residuo gerado pela agroindustria do palmito
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Helm, Cristiane Vieira, Raupp, Dorivaldo da Silva, and dos Santos, Alvaro Figueredo
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- 2014
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22. Influence of Brazilian pine seed flour addition on rheological, chemical and sensory properties of gluten-free rice flour cakes/Influencia da adicao de farinha de pinhao sobre as propriedades reologicas, quimicas e sensoriais de bolos sem gluten produzidos com farinha de arroz
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Ikeda, Monica, Carvalho, Carlos Wanderlei Piler, Helm, Cristiane Vieira, de Azeredo, Henriette Monteiro Cordeiro, de Gogoy, Rossana Catie Bueno, and Ribani, Rosemary Hoffmann
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- 2018
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23. Strategies for decolorization of textile industry effluents by white-rot- fungi with peach palm residue/Estrategias de descoloracao de efluentes da industria textil por fungos de podridao branca com residuo de pupunha
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Chicatto, Juliane Andressa, Nunes, Hayssa Carolini Alamar, Goncalves, Marcel Jefferson, Helm, Cristiane Vieira, Vaz, Deisi Altmajer, and Tavares, Lorena Benathar Ballod
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- 2018
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24. Time influence in the enzymatic saccharification of cellulose pulp samples
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Helm Cristiane V, Magalhães Washington L E, de Lima Edson A, Silva Patrícia R, Hoffmann Kleber, Higa Amanda, and Mendes Dayanne
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Medicine ,Science - Published
- 2011
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25. Pre-treatment of eucalypts biomass towards enzymatic saccharification
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Magalhães Washington, Helm Cristiane, Silva Patricia, Lima Edson, Hoffman Kleber, Higa Amanda, and Lima Tielidy
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Medicine ,Science - Published
- 2011
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26. Physiological and biochemical changes in Cedrela fissilis seeds during storage
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Silva, David da, primary, Stuepp, Carlos André, additional, Wendling, Ivar, additional, Helm, Cristiane Vieira, additional, and Angelo, Alessandro Camargo, additional
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- 2020
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27. Nutritional analysis of noodles with and without the additional of Pereskia aculeata
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ZEM, Luciele Milani, primary, HELM, Cristiane Vieira, additional, KOEHLER, Henrique Soares, additional, and ZUFFELLATO-RIBAS, Katia Christina, additional
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- 2019
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28. PinhãoSeeds and Coats: Drying Process and Flour Characterization for Application in Food Products
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Costa, Alessandra, Timm, Thaynã Gonçalves, Helm, Cristiane Vieira, and Tavares, Lorena Benathar Ballod
- Abstract
Non-timber forest products originating from native Brazilian trees, such as Araucaria angustifolia(Bertol.), stand out within the scope of the global concept of bioeconomy. The pine fruit from A. angustifolia, known in Portuguese as pinhão, is an edible seed covered with a coat that is considered as solid waste. The aim of this study was to investigate the drying kinetics of the pinhãocoats and seeds to obtain and characterize two types of flour. The drying temperature (70°C) and air velocity (1.0 ms-1) were the parameters used to obtain the drying curves. These curves were fitted using five empirical and semiempirical mathematical models to establish predictive equations for the drying process. After drying, the coats and the seed were ground (30-mesh sieve) separately to obtain two types of flour samples, which were nutritionally characterized and their antioxidant activity was quantified. The equilibrium moisture values were 2.90% for the coats and 1.71% for the seeds. The Page and the Overhults models provided the best results for both coats and seeds (R2= 0.9996; χ2 = 0.1926 and R2= 0.9971; χ2 = 0.3702, respectively). The nutritional composition results for the coat flour indicated high values for dietary fiber (84.91%), phenolic compounds (39.53 mgECg−1) and DPPH radical scavenging activity (93.23%), while the seed flour showed a high content of total carbohydrates (80.07%). Thus, the use of these products obtained from pinhão coats and seeds as a food ingredient is a promising strategy to promoting environmental sustainability and bioeconomy, while also enhancing human health.
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- 2022
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29. INFLUENCE OF SEED STORAGE CONDITIONS ON QUALITY OF Torresea acreana SEEDLINGS
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SILVA, DAVI DA, primary, STUEPP, CARLOS ANDRÉ, additional, WENDLING, IVAR, additional, Helm, Cristiane, additional, and ANGELO, ALESSANDRO CAMARGO, additional
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- 2019
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30. Drying process of Lentinula edodes: Influence of temperature on β-glucan content and adjustment of mathematical models
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Timm, Thaynã Gonçalves, primary, Pasko, Rafaely Zenni, additional, Campos, Ceci Sales da Gama, additional, Helm, Cristiane Vieira, additional, and Tavares, Lorena Benathar Ballod, additional
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- 2019
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31. A nutritional analysis of juices of ora-pro-nobis’s leaves and stalks
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ZEM, Luciele Milani, primary, HELM, Cristiane Vieira, additional, ZUFFELLATO-RIBAS, Katia Christina, additional, and KOEHLER, Henrique Soares, additional
- Published
- 2018
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32. Development of peach palm fibrous flour from the waste generated by the heart of palm agribusiness - doi: 10.4025/actascitechnol.v36i1.17165
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Helm, Cristiane Vieira, Raupp, Dorivaldo da Silva, and Santos, Álvaro Figueredo dos
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Bactris gasipaes ,nutrition ,lcsh:TA1-2040 ,fibrous food ,food and beverages ,Ciência e Tecnologia de Alimentos ,drying ,dietary fiber ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Science (General) ,lcsh:Q1-390 - Abstract
The consumption of fibrous foods has been stimulated in recent years. While wheat and oat brans are still the conventional sources of fiber for human consumption, other new fibrous products have been developed – at research level – from waste or by-products generated by food industries. This research aimed to develop a new dehydrated food product - peach palm fibrous flour - from the waste generated during the processing of the heart-of-peach palm. The average yield in dry weight from this waste into farinaceous products was 129.8 g kg-1. The flours showed high values for the total dietary fiber, 59.1 to 65.5 g 100 g-1, almost entirely represented by the insoluble fiber, as well as a low proportion of calories - 96.1 to 101.1 kcal or 408.2-429.5 kJ per 100 g of product - when compared to wheat bran. These results highlighted the peach palm flour as a potential source of fiber for human nutrition, particularly as fibrous ingredient of formulated food and functional supplements. Also, it contributes to minimizing waste disposal and to the agribusiness of peach palm grown for heart-of-palm production.
- Published
- 2013
33. Nutritional analysis of cupcakes base meal of leaves and stems of ora-pro-nobis (Pereskia aculeata)
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ZEM, Luciele Milani, primary, HELM, Cristiane Vieira, additional, ZUFFELATTO-RIBAS, Katia Christina, additional, and KOEHLER, Henrique Soares, additional
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- 2017
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34. Influence of cultivation methods on the chemical and nutritional characteristics of Lentinula edodes.
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Bach, Fabiane, Helm, Cristiane Vieira, De Lima, Edson Alves, Bellettini, Marcelo Barba, and Isidoro Haminiuk, Charles Windsnon
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- 2018
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35. Caracterização da composição química de conserva de palmito de Cordyline spectabilis e da farinha obtida do resíduo após processamento
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Helm, Cristiane Vieira, Steenbock, Walter, Mazza, Maria Cristina Medeiros, and Mazza, Carlos Alberto da Silva
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Uvarana ,Home-made canned food ,Avaliação nutricional ,Conserva vegetal ,Nutritional evaluation - Abstract
The need for new products requires the use of local raw material, which is either processed rudimentarily, such as the heart of Cordyline spectabilis Kunth & Bouché, or sometimes not processed at all. The aim of this work was to store the heart of Cordyline spectabilis from the municipality of Campo Largo, state of Parana, Brazil, as canned food and evaluate the nutritional value. The residue obtained from this process was used to make flour. The nutritional composition of both products was determinade. Their chemical compositions, pH levels and acidity were also checked for quality and conservation. The canned uvarana heart featured high protein levels (4.68 g 100 g-1) and the flour presented high levels of fibre (69.11 g 100g-1). Both products presented low calorie levels (58.39 and 59.72 kcal 100 g-1, respectively), which suggests an interesting source of vitamin for food industry. A necessidade de novos produtos estimula a utilização de matérias-primas regionais que não são processadas ou que quando o são, é realizado de maneira bastante artesanal, como é o caso da uvarana. O objetivo deste trabalho foi elaborar uma conserva de palmito de uvarana (Cordyline spectabilis Kunth & Bouché) procedentes do Município de Campo Largo, PR, e com o resíduo obtido do processamento da conserva elaborar uma farinha e determinar a composição nutricional dos dois produtos. Avaliaram-se a composição química dos produtos obtidos e o valor de pH e acidez das conservas, para avaliar o estado de conservação do produto. A conserva apresentou um alto teor proteico (4,68 g 100 g-1) e a farinha um alto teor de fibra alimentar (69,11 g 100 g-1) e ambos os produtos apresentaram um baixo valor calórico (58,39 e 59,72 kcal 100 g-1), respectivamente, o que sugere uma interessante fonte de suplemento alimentar para desenvolvimento de novos produtos alimentícios.
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- 2011
36. Produção de brotações e enraizamento de miniestacas de Piptocarpha angustifolia
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Ferriani, Aurea Portes, Zuffellato-Ribas, Katia Christina, Helm, Cristiane Vieira, Boza, Adriana, Wendling, Ivar, and Koehler, Henrique Soares
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Vassourão-branco ,Juvenilidade ,Miniestaquia ,Minicutting ,Juvenility - Abstract
Piptocarpha angustifolia Dusén ex. Malme (Asteraceae) is a brazilian native and pioneer tree species, occuring in Araucária Forest, with potential to ecosystem restorarion and introduction in forest, agriculture and pasture systems. Its propagation by seed presents irregular production and low number of feasible seeds while vegetative propagation by cutting of mature plants with semihardwood shoots didn’t present rooting response. This work aimed to evalue adventitious rooting by minicutting technique using minisprouts from seeds. The minisprouts were collected and dipped in ascorbic acid solution (1%) and minicuttings were produced with 5 cm lenght mantaining a pair of leaves in the apex installed in a medium with vermiculite and carbonized rice husk (1:1 v v-1). The evaluation was made after 90 days considering percentage of rooting minicuttings, number and lenght average for minicuttings, percentage of living minicuttings, percentage of minicuttings with callus and dead minicuttings. The higher production of minicuttings was verified in winter and spring, varying between 113.4 to 259.2 units for square meter a month. The adventitious rooting reached 45% in winter with 6.3 roots and an average of 9.8 cm of length, without using plant growth regulator. Piptocarpha angustifolia Dusén ex. Malme é uma espécie arbórea nativa brasileira, pioneira, pertencente à Floresta Ombrófila Mista, com potencialidades para recuperação de ecossistemas degradados e implantação em sistemas agrossilvipastoris. Sua propagação pela via seminal apresenta produção irregular e número reduzido de sementes viáveis além de experimentos de estaquia com ramos semilenhosos não apresentarem resposta para enraizamento adventício. Este trabalho buscou avaliar o potencial de enraizamento da espécie pela técnica da miniestaquia com uso de minicepas originadas por sementes e cultivadas sob sistema semi-hidropônico. As brotações coletadas foram imersas em solução de ácido ascórbico a 1% e as miniestacas confeccionadas com 5 cm de comprimento e manutenção do par de folhas no ápice, instaladas em substrato contendo vermiculita média e casca de arroz carbonizada (1:1 v v-1). Decorridos 90 dias, verificou-se maior produção de miniestacas no inverno e primavera, variando entre 113,4 e 259,2 miniestacas por metro quadrado ao mês. O enraizamento adventício chegou a 45% no inverno com número de raízes igual a 6,3 e comprimento médio de 9,8 cm, sem utilização de fitorregulador.
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- 2011
37. Assessment of Nano Cellulose from Peach Palm Residue as Potential Food Additive: Part II: Preliminary Studies
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Andrade, Dayanne Regina Mendes, primary, Mendonça, Márcia Helena, additional, Helm, Cristiane Vieira, additional, Magalhães, Washington L. E., additional, de Muniz, Graciela Ines Bonzon, additional, and Kestur, Satyanarayana G., additional
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- 2014
- Full Text
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38. Caracterização da composição química, proteinas de reserva e perfil de aminoácidos de variedades brasileiras de cevada nua
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Helm, Cristiane Vieira, Universidade Federal de Santa Catarina, and Francisco, Alicia de
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Cevada ,Tecnologia de alimentos ,Ciência dos alimentos ,Proteinas - Abstract
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-graduação em Ciência dos Alimentos Nas últimas décadas, a cevada nua tem sido destinada à alimentação humana devido ao seu potencial nutricional por conter elevado teor de proteínas. A cevada nua é uma variedade melhorada geneticamente com o intuito de não apresentar a casca aderida. Este trabalho teve por objetivos: caracterizar a composição química de seis variedades brasileiras de cevada nua (IAC IBON 214-82, IAC 8612-421, IAC 8501-31, IAC 8501-12, IAPAR 39-Acumaí, IAC 8501-22), todas cultivadas em caráter experimental referentes a safra de 2001; fracionar a farinha das seis variedades de cevada nua por peneiramento sucessivo e quantificar os teores de nitrogênio total, proteína total, nitrogênio protéico e não protéico nas frações obtidas; caracterizar o perfil de aminoácidos qualitativamente por cromatografia em camada delgada (TLC) e quantitativamente por cromatografia líquida de alta resolução (HPLC); determinar o perfil das proteínas de reserva por fracionamento baseada na sua solubilidade através de eletroforese em gel de poliacrilamida desnaturante (SDS-PAGE); determinar o índice de similaridade entre as seis variedades de cevada nua com base no padrão de proteínas de reserva. Os resultados da composição química diferiram significativamente entre as seis variedades (P
- Published
- 2004
39. Expression of manganese peroxidase by Lentinula edodes and Lentinula boryana in solid state and submerged system fermentation
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HERMANN, KATIA L., primary, COSTA, ALESSANDRA, additional, HELM, CRISTIANE V., additional, LIMA, EDSON A. DE, additional, and TAVARES, LORENA B.B., additional
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- 2013
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40. Evaluation of the enzymatic digestibility of paper industry byproducts
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Silva, Patrícia, primary, Magalhães, Washington Luiz, additional, Helm, Cristiane, additional, Lima, Edson, additional, Mendes, Dayanne, additional, and Lima, Tielidy, additional
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- 2011
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41. Chemical characterization of Brazilian hulless barley varieties, flour fractionation, and protein concentration
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Helm, Cristiane Vieira, primary and Francisco, Alicia de, additional
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- 2004
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42. Nota Científica Caracterização da composição química de conserva de palmito de Cordyline spectabilis e da farinha obtida do resíduo após processamento.
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Helm, Cristiane Vieira, Steenbock, Walter, Mazza, Maria Cristina Medeiros, and Mazza, Carlos Alberto da Silva
- Subjects
- *
RAW materials , *CORDYLINE , *FOOD industry - Abstract
The need for new products requires the use of local raw material, which is either processed rudimentarily, such as the heart of Cordyline spectabilis Kunth & Bouché, or sometimes not processed at all. The aim of this work was to store the heart of Cordyline spectabilis from the municipality of Campo Largo, state of Parana, Brazil, as canned food and evaluate the nutritional value. The residue obtained from this process was used to make flour. The nutritional composition of both products was determinade. Their chemical compositions, pH levels and acidity were also checked for quality and conservation. The canned uvarana heart featured high protein levels (4.68 g 100 g-1) and the flour presented high levels of fibre (69.11 g 100g-1). Both products presented low calorie levels (58.39 and 59.72 kcal 100 g-1, respectively), which suggests an interesting source of vitamin for food industry. [ABSTRACT FROM AUTHOR]
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- 2011
- Full Text
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43. Identificação de atributos e avaliação da satisfação e aceitação de suplemento alimentar tipo shake.
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Timm, Thaynã Gonçalves, Helm, Cristiane Vieira, Noriler, Ida Luciana Martins, Alberton, Michele Debiasi, Henriques, Gilbert Simeone, and Ballod Tavares, Lorena Benathar
- Abstract
Copyright of Revista Acadêmica: Ciência Animal is the property of Revista Academica: Ciencia Animal 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.)
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- 2019
44. Enhancement of oat cereal bars with added Araucaria angustifolia flour: seed, almond or bark.
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Graziele Castrillon, Rafaela, Marques, Caroline, Oliveira Farias, Fabiane, Vieira Helm, Cristiane, and Luiz Mathias, Alvaro
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TASTE testing of food , *FOREST conservation , *SUSTAINABILITY , *BARS (Desserts) , *FUNCTIONAL foods , *ALMOND , *OATS - Abstract
The feasibility of enhancing oat cereal bars, widely recognized for their health benefits, was investigated by replacing up to 5% oats with whole seed, almond, or steam-cooked pinhão husk flour. Pinhão contributes with resistant starch, antioxidant compounds, and minerals. The control oat bar (30.5% of the mixture), without pinhão flours but containing brown sugar (25.5%), raisins (15.0%), glucose (15.0%), coconut oil (3.0%), gelatin (0.5%), and water (10.0%), provides 75.53 kcal, with 15.66% carbohydrates (on a dry basis), 2.88% insoluble fiber, 0.70% soluble fiber, 1.82% protein, 0.62% lipids, and 0.32% minerals. Bars replacing up to 5% of oats with almond, husk, or whole seed flour showed statistically similar compositions, except for lipids, few minerals, phenolic compounds, and antioxidant activity. Concerning daily recommendations, a 22 g bar offers low energy (3.78%, Brasil, 1998) and proportionally high mineral content, including potassium (34.64%), zinc (81.58%), magnesium (108.55%), iron (421.18%), copper (192.98%), calcium (395.13%), and manganese (1,027.00%). Additionally, they exhibit a significant content of total phenolic compounds (8.66 mg GAE/g) and antioxidant capacity (24.43 mg Trolox/g). These innovative bars were well-received in sensory evaluations and demonstrated good commercial potential. Notably, a bar that replaced 5% oats with husk flour could be a viable option for microenterprises due to simplified technology, contributing to waste valorization and encouraging the preservation of the Araucaria Forest. [ABSTRACT FROM AUTHOR]
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- 2024
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- View/download PDF
45. Efeito protetivo de iogurte adicionado de polpa de guabiroba (Campomanesia sp.) na sobrevivência deBifidobacterium animalis subsp. lactis BB-12 submetidaa condições gástricas.
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Prestes, Amanda Alves, Verruck, Silvani, da Silva Barros, Eulália Lopes, Alves de Oliveira, Luan Valdemiro, Helm, Cristiane Vieira, and Prudêncio, Elane Schwinden
- Abstract
Copyright of Revista Acadêmica: Ciência Animal is the property of Revista Academica: Ciencia Animal 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
46. Pre-treatment of eucalypts biomass towards enzymatic saccharification.
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Luiz Magalhães, Washington, Helm, Cristiane, Silva, Patricia, Lima, Edson, Hoffman, Kleber, Higa, Amanda, and Lima, Tielidy
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- *
BIOMASS - Abstract
An abstract of the conference paper "Pre-treatment of eucalypts biomass towards enzymatic saccharification," by Cristiane Helm and colleagues is presented.
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- 2011
- Full Text
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47. Aegiphila brachiata Vell. : germinação, caracterização de sementes e frutos, estaquia e composição bioquímica
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Maggioni, Renata de Almeida, 1989, Carpanezzi, Antonio Aparecido, Helm, Cristiane Vieira, Santos, Bruno Francisco Sant'Anna dos, 1978, Koehler, Henrique Soares, 1953, Universidade Federal do Paraná. Setor de Ciências Agrárias. Programa de Pós-Graduação em Agronomia - Produção Vegetal, and Zuffellato-Ribas, Katia Christina, 1969
- Subjects
Arvores - Dormencia ,Agronomia ,Arvores - Mudas ,Propagação vegetativa - Abstract
Orientadora: Profa. Dra. Katia Christina Zuffellato-Ribas Coorientadores: Dr. Antonio Aparecido Carpanezzi, Dra. Cristiane Vieira Helm, Prof. Dr. Bruno Francisco Sant’Anna dos Santos, Prof. Dr. Henrique Soares Koehler Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Agronomia - Produção Vegetal. Defesa : Curitiba, 30/05/2022 Inclui referências Área de concentração: Produção Vegetal Resumo: Aegiphila brachiata (Lamiaceae) é uma espécie florestal nativa do Brasil, popularmente conhecida como peloteiro; possui uma elevada capacidade de produção de biomassa e resistência a perturbações ambientais, sendo considerada potencial para uso em ecossistemas degradados. Ainda há uma enorme carência de informações referentes ao peloteiro. Pesquisas que visem identificar o processo de produção de mudas de espécies florestais nativas e suas limitações são primordiais e dão suporte aos programas de restauração em larga escala. Nesse contexto, a presente tese teve como objetivos fornecer subsídios para a produção de mudas seminal e vegetativa de A. brachiata, buscando identificar os principais fatores que influenciam a germinação e o enraizamento adventício. Para tanto, o trabalho foi dividido em três capítulos. O primeiro abordou o potencial germinativo de sementes do peloteiro submetidas a escarificação e diferentes concentrações de giberelina, bem como a propagação vegetativa por estaquia a partir de materiais com diferentes idades fisiológicas, submetidos a tratamentos com Azospirillum brasilense e ácido indol butírico. Os resultados indicaram ausência de germinação por existir uma barreira mecânica no endocarpo à emissão da radícula. A estaquia por meio de plantas rejuvenescidas é recomendada para produção de mudas (53,75% de enraizamento), sendo necessária aplicação de 6000 mg L-¹ IBA. O segundo capítulo analisou a morfobiometria de fruto, semente e plântula e o efeito de diferentes métodos de superação de dormência mecânica e temperaturas na germinação de A. brachiata. Os frutos são do tipo carnoso indeiscente, com cálice persistente. O pirênio é constituído pelo endocarpo e a semente, exalbuminosa, com embrião axial. A germinação é hipógea e a plântula criptocotiledonar. A retirada total do endocarpo e temperaturas de 25 e 30°C são recomendadas para a germinação da espécie (28,50% de germinação). Por fim, o terceiro capítulo visou avaliar o potencial rizogênico de estacas oriundas de matrizes rejuvenescidas e adultas coletadas em diferentes estações do ano, além de identificar compostos fenólicos, proteínas e metabólitos polares presentes nas estacas e caracterizar anatomicamente a base caulinar das mesmas. Concluiu-se que propágulos oriundos de matrizes rejuvenescidas coletados na primavera são indicados para produção de mudas (25,25% de enraizamento), sem efeito favorável do uso de ácido indol butírico. Os maiores valores de compostos fenólicos foram obtidos na primavera, tanto para estacas de matrizes rejuvenescidas (37,39 mg g-¹) como de matrizes adultas (25,81 mg g-¹). O teor de proteínas foi obtido em maior quantidade em estacas coletadas no outono de matrizes rejuvenescidas (146,74 mg g-¹). Os compostos ácido maleico, 2-hidroxi-ácido glutárico, manose-6-fosfato, ácido ribônico, glicina e ácido fosfórico foram obtidos em maiores concentrações em estacas de matrizes rejuvenescidas, com efeito benéfico ao enraizamento adventício. Não há diferenças anatômicas entre os propágulos coletados de diferentes matrizes. Abstract: Aegiphila brachiata (Lamiaceae) is a forest species native to Brazil, popularly known as peloteiro; it has a high capacity for biomass production and resistance to environmental disturbances, being considered potential for use in degraded ecosystems. There is still a huge lack of information regarding the peloteiro. Research aimed at identifying the seedling production process of native forest species and its limitations are essential and support large-scale restoration programs. In this context, the present thesis aimed to provide subsidies for the production of seminal and vegetative seedlings of A. brachiata, seeking to identify the main factors that influence germination and adventitious rooting. Therefore, the work was divided into three chapters. The first addressed the germination potential of pellet seeds submitted to scarification and different concentrations of gibberellin, as well as the vegetative propagation by cuttings from materials with different physiological ages, submitted to treatments with Azospirillum brasilense and indole butyric acid. The results indicated absence of germination due to the existence of a mechanical barrier in the endocarp to the emission of the radicle. Cutting using rejuvenated plants is recommended for seedling production (53.75% rooting), requiring the application of 6000 mg L-¹ IBA. The second chapter analyzed the morphobiometry of fruit, seed and seedling and the effect of different methods of overcoming mechanical dormancy and temperatures on the germination of A. brachiata. The fruits are fleshy indehiscent, with a persistent chalice. The pyrene is constituted by the endocarp and the seed, exalbuminous, with axial embryo. Germination is hypogeal and the seedling is cryptocotyledonary. The total removal of the endocarp and temperatures of 25 and 30°C are recommended for germination of the species (28.50% germination). Finally, the third chapter aimed to evaluate the rhizogenic potential of cuttings from rejuvenated and adult matrices collected in different seasons, in addition to identifying phenolic compounds, proteins and polar metabolites present in the cuttings and anatomically characterizing their stem base. It was concluded that propagules from rejuvenated matrices collected in the spring are indicated for the production of seedlings (25.25% rooting), with no favorable effect of the use of indole butyric acid. The highest values of phenolic compounds were obtained in spring, both for cuttings from rejuvenated matrices (37.39 mg g-¹) and from adult matrices (25.81 mg g-¹). The protein content was obtained in greater quantity in cuttings collected in autumn from rejuvenated matrices (146.74 mg g-¹). The compounds maleic acid, 2-hydroxy-glutaric acid, mannose-6-phosphate, ribonic acid, glycine and phosphoric acid were obtained in higher concentrations in cuttings from rejuvenated matrices, with a beneficial effect on adventitious rooting. There are no anatomical differences between the propagules collected from different matrices.
- Published
- 2022
48. Ilex paraguariensis A. St.-Hil. : miniestaquia, caracterização química e produtiva de diferentes genótipos em sistema semi-hidropônico
- Author
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Vieira, Leandro Marcolino, 1993, Wendling, Ivar, Helm, Cristiane Vieira, Koehler, Henrique Soares, 1953, Universidade Federal do Paraná. Setor de Ciências Agrárias. Programa de Pós-Graduação em Agronomia - Produção Vegetal, and Zuffellato-Ribas, Katia Christina, 1969
- Subjects
Agronomia ,Propagação vegetativa ,Mudas - Produção ,Erva-mate - Abstract
Orientadora: Profa. Dra. Katia Christina Zuffellato-Ribas Coorientadores: Dr. Ivar Wendling, Dra. Cristiane Vieira Helm, Prof. Dr. Henrique Soares Koehler Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Agronomia. Defesa : Curitiba, 14/03/2022 Inclui referências Área de concentração: Produção Vegetal Resumo: Ilex paraguariensis A. St.-Hil., é uma espécie arbórea, pertencente à família Aquifoliaceae, nativa do sul do Brasil, Argentina e Paraguai. Possui grande importância ecológica, econômica, social e cultural. Tradicionalmente, os cultivos comerciais de erva-mate são, na grande maioria, formados por ervais estabelecidos a partir de mudas seminais, muitos deles sem critério de seleção de matrizes, resultando em plantios com crescimento desuniforme, baixa produtividade, alta heterogeneidade e baixa qualidade da erva-mate. Além disso, sementes de erva mate apresentam uma germinação baixa, lenta e desuniforme. Diante disso, uma das alternativas é a utilização de mudas propagadas vegetativamente a partir de genótipos selecionados. Apesar de haver estudos com propagação vegetativa da erva-mate, ainda existem limitações no estabelecimento de um protocolo eficiente de propagação. O presente estudo objetivou avaliar a influência da aplicação do ácido indol butírico (IBA) e a época do ano no enraizamento de miniestacas de 15 diferentes genótipos de erva-mate, a partir de minicepas já instaladas em sistema de minijardim, e verificar a correlação da composição química e caracteres produtivos de plantas matrizes com a capacidade rizogênica de seus propágulos, bem como avaliar a produção de massa verde em sistema semi-hidropônico nas diferentes épocas do ano. Os experimentos foram conduzidos em esquema fatorial 4x15x2 [4 épocas do ano x 15 genótipos x 2 concentrações de IBA: 0 mg L-¹ e 3000 mg L-¹], num delineamento inteiramente casualizado, com 4 repetições e 10 miniestacas por unidade experimental. As miniestacas foram preparadas com 5 ± 1 cm de comprimento, com corte reto no ápice e corte em bisel na porção basal, mantendo se um par de folhas. O material foi mantido em casa de vegetação e após 120 dias foram avaliadas as variáveis relacionadas ao enraizamento e sobrevivência. Ainda foram avaliadas a produtividade de miniestacas/minicepa e massa verde total dos 15 genótipos, bem como realizadas análises bioquímicas (teores de cafeína, teobromina, compostos fenólicos, açúcares, proteínas totais e metabolômica). Para as análises bioquímicas, foram coletadas amostras de cada genótipo nos dias da implantação dos experimentos de miniestaquia. Os dados foram submetidos à análise de variância pelo teste F e as médias comparadas pelo teste de Tukey ou Scott-Knott ao nível de 5% de probabilidade. Constatou-se que o enraizamento adventício (0 a 90% de enraizamento) e o perfil fitoquímico de miniestacas de erva mate são dependentes do genótipo. A retenção foliar é um fator relevante no enraizamento de miniestacas de erva-mate e os teores de compostos fenólicos totais (até 111,5 mg g-¹), atividade antioxidante (até 2790,41 µmol g-¹) e teobromina (até 5,89 mg g-¹) presentes nas miniestacas são componentes negativos correlacionados ao seu enraizamento adventício. A necessidade de aplicação de IBA e a produtividade de miniestacas e massa verde são variáveis dependentes do genótipo e da estação do ano de coleta dos propágulos, sendo que outono é a estação com maior necessidade de aplicação deste regulador vegetal para o enraizamento adventício. Maiores porcentagens de enraizamento podem estar associadas com as maiores concentrações dos aminoácidos glutamina e asparagina. O genótipo EC21 proporcionou maior produtividade de miniestacas (961,7 miniestacas m-²) e massa verde em cultivo semi-hidropônico, possibilitando a produtividade de 96,16 t ha-¹ ano-¹ de massa verde de erva-mate. Abstract: Ilex paraguariensis A. St.-Hil., is a tree species, belonging to the Aquifoliaceae family, native to Southern Brazil, Argentina and Paraguay. It has great ecological, economic, social and cultural importance. Traditionally, commercial yerba mate stands are, in the vast majority, formed by plants established from seedlings, many of them from parental plants without clearly defined selection criteria, resulting in plantations with uneven growth, low productivity, high heterogeneity and low yerba mate quality. In addition, yerba mate seeds present low, slow and uneven germination. Therefore, one of the alternatives is the use of vegetatively propagated saplings from selected genotypes. Although there are studies on vegetative propagation of yerba mate, there are still limitations in establishing an efficient propagation protocol. Thus, the present study aimed to evaluate the influence of the application of indole butyric acid (IBA) and the time of year on the rooting of mini cuttings of 15 different genotypes of yerba mate originated, from mini-stumps cultivated in a mini-garden system, and to verify the correlation of the chemical composition and productive characters of parent plants with the rhizogenic capacity of their propagules, as well as to evaluate the production of fresh biomass in a semi hydroponic system at different times of the year. The experiments were carried out in a 4x15x2 factorial scheme [4 times of the year x 15 genotypes x 2 concentrations of IBA: 0 mg L-¹ and 3000 mg L-¹], in a completely randomized design, with 4 replications and 10 mini-cuttings per experimental unit. The mini-cuttings were 5 ± 1 cm in length, with a straight cut at their apex and a beveled cut in their basal portion, keeping a pair of leaves. The material was kept in a greenhouse and after 120 days, the variables related to rooting and survival were evaluated. The productivity of mini-cuttings/mini-stump and total fresh biomass of the 15 genotypes were also evaluated, as well as biochemical variables (contents of caffeine, theobromine, phenolic compounds, sugars, total proteins, metabolomics analysis). For the biochemical analyses, samples of each genotype were collected on the day of establishing the mini-cuttings experiments. The data were submitted to analysis of variance by the F test and the means were compared by the Tukey or Scott-Knott test at the 5% probability level. Adventitious rooting (0 to 90% rooting) and phytochemical profile of yerba mate mini-cuttings are genotype dependent. Leaf retention is a relevant factor in the rooting of yerba mate mini-cuttings and the levels of total phenolic compounds (up to 111.5 mg g-¹), antioxidant activity (up to 2790.41 µmol g-¹) and theobromine (up to 5 .89 mg g-¹) are negatively correlated with their adventitious rooting of yerba mate. The need for IBA application and productivity of mini-cuttings and fresh biomass are variables dependent on the genotype and the season of the year of collection of the propagules, with autumn being the season with the greatest need for application of this plant regulator for adventitious rooting. Higher percentages of rooting may be associated with higher concentrations of the amino acids glutamine and asparagine. The EC21 genotype provided higher mini cutting productivity (961.7 mini-cuttings m-²) and fresh biomass in semi-hydroponic system, reaching the productivity of 96.16 t ha-¹ year-¹ of yerba mate fresh biomass.
- Published
- 2022
49. Silvicultura clonal de erva-mate : compostos bioativos e enraizamento adventício
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Stuepp, Carlos André, 1984, Helm, Cristiane Vieira, Kratz, Dagma, 1986, Universidade Federal do Paraná. Setor de Ciências Agrárias. Programa de Pós-Graduação em Engenharia Florestal, and Wendling, Ivar
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Recursos Florestais e Engenharia Florestal ,Erva-mate - Propagação por estaquia ,Erva-mate - Cultivo ,Teses ,Erva-mate - Melhoramento genético - Abstract
Orientador: Prof. Dr. Ivar Wendling Coorientadoras: Dra. Cristiane Vieira Helm, Profa. Dra. Dagma Kratz Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Engenharia Florestal. Defesa : Curitiba, 19/07/2021 Inclui referências Área de concentração: Silvicultura Resumo: Ilex paraguariensis A. St.-Hil. (Aquifoliaceae), conhecida popularmente como erva-mate, é uma espécie perene nativa representante da Floresta Ombrófila Mista, de grande valor econômico, social e ambiental. Além dos produtos tradicionais, como o chimarrão, tererê e chás, apresenta grande potencial na área de fármacos e alimentos, por conter propriedades funcionais e medicinais. Por essa razão, materiais genéticos vêm sendo avaliados quanto à concentração de compostos bioativos, sem, no entanto, levar em consideração sua estabilidade em ciclos sucessivos de produção, bem como sua relação com os diferentes morfotipos, sexo e produtividade de biomassa comercial. A presente tese está organizada em capítulos, com os respectivos objetivos: Capítulo I - avaliar 58 genótipos de ervamate quanto às suas composições de cafeína, teobromina, compostos fenólicos totais e proteínas e verificar sua estabilidade ao longo de quatro anos consecutivos; Capítulo II - avaliar o potencial de resgate vegetativo e multiplicação clonal de 22 genótipos de erva-mate e sua correlação com os compostos bioativos, morfotipo, sexo e produtividade de biomassa comercial. Para tanto, foram selecionados 58 genótipos de erva-mate com base em sua produtividade, morfotipo foliar e sexo, provenientes de um teste de procedências e progênies instalado no município de Ivaí-PR. Entre 2015 e 2018, sempre no mês de agosto, foram coletadas folhas maduras, livres de injurias, do terço médio das plantas e encaminhadas para a determinação do teor de cafeína, teobromina e compostos fenólicos totais e proteínas totais. Para avaliar o potencial de resgate vegetativo por estaquia foram utilizados 22 genótipos dos 58 inicialmente selecionados, os quais foram submetidos a poda drástica para a coleta de brotações que ocorreu em duas épocas. A partir das brotações foram preparadas estacas caulinares com 12±0,5 cm de comprimento, as quais foram desinfestadas e submetidas ao tratamento com ácido indolbutírico na concentração de 4.000 mg L-1, sendo posteriormente plantadas em caixas plásticas preenchidas com vermiculita de granulometria fina e acondicionadas em casa de vegetação climatizada para enraizamento, durante 90 dias. A elevada variabilidade genética atribuída à espécie fica evidente na distribuição quantitativa dos principais compostos bioativos, com extremos de cafeína (0,035 a 2,385 g 100g- 1), teobromina (0,0004 a 1,772 g 100g-1), compostos fenólicos totais (7,028 a 9,424 g EAG 100g-1), proteínas (10,39 a 16,58 g 100g-1) e estabilidade individual dos genótipos nos quatro anos de avaliação. Da mesma forma, o enraizamento adventício mostrou ampla variação, com percentuais entre 13% a 78% entre os 22 genótipos, sem, no entanto, haver correlação significativa com os compostos bioativos avaliados. Abstract: Ilex paraguariensis A. St.-Hil. (Aquifoliaceae), popularly known as yerba mate, is a perennial Brazilian native species representing the Mixed Ombrophilous Forest, of great economic, social and environmental value. In addition to traditional products, such as chimarrão, tererê and teas, it has great potential in the area of pharmaceuticals and industries, as it contains functional and medicinal properties. For this reason, genetic materials have been evaluated for the concentration of biocompounds, without, however, taking into account the stability in successive production cycles, as well as their relationship with different morphotypes, sex and commercial biomass productivity. This thesis is organized in chapters, with the respective objectives: Chapter I - to evaluate 58 yerba mate genotypes regarding their caffeine, theobromine, total phenolic compounds and proteins compounds and check their stability over four consecutive years; Chapter II - to evaluate the potential for vegetative rescue by rooting cuttings of 22 yerba mate genotypes and their correlation with biochemical composition, morphotype, sex and commercial biomass productivity. For this purpose, 58 yerba mate genotypes were selected based on their productivity, leaf morphotype and sex, from a provenance and progenies trial installed in the city of Ivaí-PR, Brazil. Between 2015 and 2018, always in August, mature leaves were collected, free of injuries, from the middle third of the plants and sent for determination of the caffeine, theobromine, total phenolic compounds and total protein content. To assess the potential for vegetative rescue by rooting cuttings, 22 genotypes were selected from the 58 initially selected, which were subjected to drastic pruning to collect shoots in two periods. From the shoots, stem cuttings were prepared with 12±0.5 cm in length, disinfested and subjected to treatment with indolebutyric acid at a concentration of 4,000 mg L-1, being subsequently planted in plastic boxes filled with fine-grained vermiculite and stored in a climate-controlled greenhouse, for 90 days. The high genetic variability attributed to the species is evident in the quantitative distribution of the main biochemical components, with extremes of caffeine (0.035 to 2.385 g 100g-1), theobromine (0.0004 to 1.772 g 100g-1), total phenolic compounds (7.028 to 9.424 g 100g-1) and proteins (10.39 to 16.58 g 100g-1) and individual stability of the genotypes in the four years of evaluation. Likewise, adventitious rooting showed wide variation, with percentages ranging from 13% to 78% among the 22 genotypes, without, however, having significative correlation with the bioactive compounds evaluated.
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- 2021
50. Fase aquosa do bio-óleo de pirólise rápida incorporada com bentonita como agente protetor contra fungos e para hidrorepelência da madeira
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Sanson, Caio Silvestre Lima, 1991, Helm, Cristiane Vieira, Magalhães, Washington Luiz Esteves, Universidade Federal do Paraná. Setor de Ciências Agrárias. Programa de Pós-Graduação em Engenharia Florestal, and Cademartori, Pedro Henrique Gonzalez de, 1987
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Madeira - Preservativos ,Fungos apodrecedores da madeira ,Biocombustíveis ,Pirolise ,Teses ,Madeira - Conservação - Abstract
Orientador: Prof. Dr Pedro Henrique Gonzalez de Cademartori Coorientadores: Profª. Drª. Cristiane Vieira Helm, Prof. Dr. Washington Luiz Esteves Magalhães Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Engenharia Florestal. Defesa : Curitiba, 27/08/2021 Inclui referências: p. 73-85 Área de concentração: Tecnologia e Utilização de Produtos Florestais Resumo: O estudo teve como principal objetivo desenvolver um agente protetor para madeira a ataques de fungos e aumentar a hidrorepelência da superfície da madeira, através do fracionamento líquido-líquido do bio-óleo de pirólise rápida de Eucalyptus sp. e incorporação de nanoestruturas do argilomineral bentonita. A motivação do presente estudo foi produzir uma alternativa de origem renovável com caráter protetor para madeira com menor potencial danoso para o meio ambiente, em comparação por exemplo a produtos derivados do cromo, cobre e arsênio. O bio-óleo foi fracionado pelo método de separação física por agitação vigorosa utilizando água destilada como meio líquido. Ajustou-se a proporção água:óleo, para obter os melhores rendimentos da fração aquoso (WS) (em torno de 60%), optando-se pelas proporções 1:50 (WS50) e 1:100 (WS100). A bentonita foi esfoliada em meio aquoso via agitação vigorosa e magnética, formando a suspensão de nanoestruturas de bentonita (NB), e em seguida incorporada com as WS. Um total de cinco tratamentos contendo com as WS e/ou NB (WS100+NB, WS100, WS50+NB, WS50 e NB) foram caracterizados essas suspensões antes (na sua forma líquida e os sólidos de cada suspensão quando secos) e depois de quando impregnados na madeira de Pinus taeda quanto a morfologia, atividade antifúngica, resistência biológica, molhabilidade superficial, comportamento térmico por análise termogravimétrica e ensaios de lixiviação. Morfologicamente por MEV e MET foi utilizado para caracterização das nanoestruturas de bentonita dispersas em escala nanométrica, e quando impregnadas na madeira com ou sem a WS, formou um filme sob a superfície da madeira. Os sólidos das suspensões de WS incorporadas com NB, quando analisadas por termogravimetria, apresentaram maior estabilidade térmica, suponha-se que pelo fato da presença dos compostos inorgânicos. As madeiras tratadas com WS e NB aumentaram substancialmente a hidrorrepelência, apresentando maior estabilidade cinética do ângulo de contato. Os tratamentos WS100, WS50 e WS50+NB inibiram totalmente o crescimento dos fungosTrametes versicolor e Gloeophyllum trabeum em ensaio de potencial antagonista por disco-difusão. Estas inibições foram confirmadas no teste de biodeterioração acelerada da madeira com os mesmos fungos. De maneira geral, os tratamentos com WS e NB resultaram em menor perda de massa se comparado a madeira não-tratada, ressaltando-se o tratamento com NB e WS50+NB com os melhores resultados. Na lixiviação foi verificado a quantidade material de lixiviado para os materiais analisados. Portanto, ao serem analisados em caráter físico, químico e biológico, as suspensões provenientes do fracionamento do bio-óleo de pirólise rápida com ou sem as nanoestruturas de bentonita, demonstraram ser uma alternativa eficaz como agente protetor de materiais lignocelulósicos, e que a junção desses dois materiais resultou em uma sinergia positiva. Abstract: This study was to develop a protective agent for wood, through the liquid-liquid fractionation of the fast pyrolysis bio-oil of Eucalyptus sp. and incorporation of bentonite clay mineral nanostructures. The motivation of this study was to produce an alternative with a protective character for wood with less harmful potential for the environment and adding value to materials of renewable origin. Bio-oil was fractionated by physical separation method by vigorous stirring using distilled water as liquid medium. The water:oil ratio was adjusted to obtain the best WS yields (around 60%), opting for the ratios 1:50 (WS50) and 1:100 (WS100). The bentonite was exfoliated in an aqueous medium via vigorous and magnetic stirring, forming a suspension of bentonite nanostructures (NB), and then incorporated with the WS. A total of five treatments containing WS and/or NB (WS100+NB, WS100, WS50+NB, WS50 and NB) were characterized before (in its liquid form and its solids when dry) and after impregnation in Pinus taeda wood as morphology, antifungal activity, biological resistance, surface wettability, thermal behavior by thermogravimetric analysis and leaching tests. Morphologically, by SEM and TEM, the nanostructures of bentonite dispersed at a nanometric scale were verified, and when impregnated in the wood with or without WS, it formed a film under the surface of the wood. The solids of WS suspensions incorporated with NB, when analyzed by thermogravimetry, showed greater thermal stability due to the presence of inorganic compounds. Woods treated with WS and NB substantially increased water repellency, showing greater kinetic stability of the contact angle. Treatments WS100, WS50 and WS50+NB totally inhibited the growth of the fungi Trametes versicolor and Gloeophyllum trabeum in a disk-diffusion test of antagonist potential. These inhibitions were confirmed in the accelerated wood biodeterioration test with the same fungi. In general, the treatments with WS and NB resulted in less mass loss compared to untreated wood, highlighting the treatment with NB and WS50+NB. And when analyzing the leaching of the wood impregnated with WS and/or NB suspensions, a low level of leaching was verified for both materials. Therefore, when analyzed on a physical, chemical, and biological basis, the suspensions from the fractionation of rapid pyrolysis bio-oil with or without bentonite nanostructures, proved to be an effective alternative as a protective agent for lignocellulosic materials, and that the combination of these two materials resulted in a positive synergy.
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- 2021
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