936 resultados para resistant starch
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Este estudo avaliou a composição química da farinha de banana verde sem casca e com casca, obtido por secagem em leito de jorro, com o objetivo de agregar valor nutricional a produtos alimentícios. As bananas foram cortadas e trituradas para a obtenção de uma pasta, sendo esta alimentada no secador leito de jorro (12 cm de altura e T = 80 º C), a fim de obter uma farinha. As farinhas obtidas foram submetidas a análise da umidade, proteína, cinzas, Carboidratos totais, amido total, amido resistente, e fibras. As farinhas de banana verde, principalmente com casca, são boas fontes de fibras e amido resistente, com uma média de 21,91g/100g e 68,02g/100g respectivamente. O teor médio de proteína encontrado foi para 4,76g/100g, sendo classificada como uma proteína de baixo valor biológico, tendo a lisina como o primeiro aminoácido limitante. Os resultados mostraram que a farinha de banana verde com casca obtida por secagem em leito de jorro pode ser uma ferramenta valiosa para agregação de valor nutricional aos produtos, a fim de aumentar a sua fracção não digerível.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Ciências Farmacêuticas - FCFAR
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Pós-graduação em Medicina Veterinária - FCAV
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The objective of this work was to analyze the profiles of the concentrations of resistant starch and respective properties of paste of two cassava varieties with different development stages. For the evaluation of the profile of the concentration of resistant starch and paste properties, the starches of the cassava varieties were used IAC 576/70 and Fécula Branca, which were collected with different times of cultivation (10, 11, 12, 13, 14 and 15 months), and the use of these times were according the crop of cassava variety IAC 576/70. For the analysis of paste property the apparel was used RVA and for analysis of resistant starch the enzymatic method was used. The results showed for the paste properties happened significant differences among the two varieties of cassava starch, and in some months they there wasn't differences, and as the results of resistant starch happened differences among the starches the months of July and August, and as for the different development stages only the starch of Fécula Branca that happened significant differences.
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Pós-graduação em Zootecnia - FMVZ
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Bases Gerais da Cirurgia - FMB
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Pós-graduação em Bases Gerais da Cirurgia - FMB
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The objectives of this PhD research were: i) to evaluate the use of bread making process to increase the content of β-glucans, resistant starch, fructans, dietary fibers and phenolic compounds of kamut khorasan and wheat breads made with flours obtained from kernels at different maturation stage (at milky stage and fully ripe) and ii) to study the impact of whole grains consumption in the human gut. The fermentation and the stages of kernel development or maturation had a great impact on the amount of resistant starch, fructans and β-glucans as well as their interactions resulted highly statistically significant. The amount of fructans was high in kamut bread (2.1g/100g) at the fully ripe stage compared to wheat during industrial fermentation (baker’s yeast). The sourdough increases the content of polyphenols more than industrial fermentation especially in bread made by flour at milky stage. From the analysis of volatile compounds it resulted that the sensors of electronic nose perceived more aromatic compound in kamut products, as well as the SPME-GC-MS, thus we can assume that kamut is more aromatic than wheat, so using it in sourdough process can be a successful approach to improve the bread taste and flavor. The determination of whole grain biormakers such as alkylresorcinols and others using FIE-MS AND GC-tof-MS is a valuable alternative for further metabolic investigations. The decrease of N-acetyl-glucosamine and 3-methyl-hexanedioic acid in kamut faecal samples suggests that kamut can have a role in modulating mucus production/degradation or even gut inflammation. This work gives a new approach to the innovation strategies in bakery functional foods, that can help to choose the right or best combination between stages of kernel maturation-fermentation process and baking temperature.