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Extração e utilização de frutanos de Yacon (Polymnia sonchifolia) na funcionalização de alimentos

Authors: Pereira, Roseli Aparecida Claus Bastos;

Extração e utilização de frutanos de Yacon (Polymnia sonchifolia) na funcionalização de alimentos

Abstract

Nowadays, consumers demand more nutritional and hygienically safe food products. Studies have led to the development of new products, guaranteeing the properties e effects of functional food products on humans. Yacon may be considered a functional product, owing to its fructooligosaccharides (FOS) content, which is not metabolized by the human organism, passing inertly through the digestive tract, providing a few calories. Before the growing consumer´s demand and the importance of an aggregated- value product (symbiotic = yacon and bifidum), this study aimed at verifying the suitable procedures for the extraction and purification of yacon fructans to functionalization in food products, thus defining a protocol for the production of a food basis containing fructans along with probiotic Bifidobacterium bifidum, and assess both qualitatively and quantitatively the functional action of the food basis projected in an experimental model. Yacon was heated at 90°C, for 10 minutes, with 0,5% of citric acid and Diatomacea CA/150 and CA/500 pre-cover, resulted, in the drying, in a clear coloration product. The control of temperature conditions at the beginning (250°C) and at the end (110°C) resulted in less energy expenditure, whitening of the product and low humidity percentage. To asses the effect of dehydrated extract of yacon with Bifidobacterium bifidum on ponderal development, glycemia, total cholesterol, triglycerides, alanine aminotransferase (ALT), aspartate aminotransferase (AST), liver histology, 24 Wistar rats were treated for 59 days. The experiment was carried out with 8 animals (4 males and 4 females) for each group: control, dehydrated extract of yacon and dehydrated extract of yacon with bifidum. The animals were sacrificed on the 60th day, and the blood was collected through exsanguination... (Complete abstract click electronic access below)

Atualmente, o consumidor está cada vez mais exigente por alimentos nutritivos e higienicamente seguros. Estudos têm sido conduzidos para o desenvolvimento de novos produtos e para assegurar as propriedades e os efeitos dos alimentos funcionais sobre o organismo humano. O yacon pode ser considerado alimento funcional pelo seu teor de frutooligossacarídeos (FOS), os quais não são digeridos pelo organismo humano, passando inertes através do trato digestório, fornecendo poucas calorias. Diante da crescente exigência do consumidor e da importância de se obter produto de valor agregado (simbiótico = yacon e bifidum), este estudo teve por objetivos verificar os adequados procedimentos para a extração e purificação de frutanos de yacon na utilização da funcionalização de alimentos definindo um protocolo dos procedimentos para produção de uma base alimentar contendo frutanos consorciados com probióticos Bifidobacterium bifidum e avaliar qualitativa e quantitativamente a ação funcional da base alimentar projetada em modelo experimental. O processo de aquecimento do yacon foi feito à 90°C por 10 minutos, utilização de 0,5% de ácido cítrico e pré-capa com diatomácea CA/150 e CA/500 resultando na secagem em um produto de coloração clara. O controle das condições de temperatura na entrada (250°C) e saída (110°C) resultou em menor gasto de energia, clareamento do produto e baixa porcentagem de umidade. Para a avaliação do efeito do extrato desidratado de yacon com Bifidobacterium bifidum sobre desenvolvimento ponderal, glicemia, colesterol total, triglicérides, alanina amino transferase (ALT), aspartato amino transferase (AST), histologia do fígado, 24 ratos Wistar foram tratados por 59 dias. O ensaio foi conduzido com 8 animais (sendo 4 machos e 4 fêmeas) para cada grupo...

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Country
Brazil
Keywords

Yacon, Inulina, Frutose, Food functional, Compostas (Botânica), Symbiotic, Inulin. eng

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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