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https://doi.org/10.5016/dt0006...
Doctoral thesis . 2011 . Peer-reviewed
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Caracterização de produtos extrusados de misturas de farinha de soja, fécula e farelo de mandioca

Authors: Trombini, Fernanda Rossi Moretti;

Caracterização de produtos extrusados de misturas de farinha de soja, fécula e farelo de mandioca

Abstract

Cassava is a tuberous starch with great energy potential and can be used both for fresh consumption and processing purposes. During the processing of cassava for starch production are generated significant amounts of residual fibers (cassava bran), which has potential use as a source of dietary fiber. Studies show the benefits of functional foods, which has roused the interest of consumers who want to incorporate in your diet products rich in nutrition components, and nurture, are still able to protect the body against diseases. Due to these factors, soy has emerged between the various legumes benefits attributed to its consumption. The extrusion technology has been explored in recent years to the development of new food products. This technology makes it possible, with little or no modification of the basic equipment and an appropriate control of the process, the production of a wide variety of products. This work aimed to evaluate the effect of the composition of the raw material, the extrusion temperature and screw speed on physical and rheological properties of extruded products made from mixtures of bran and cassava starch with soy flour. The extrusion process was carried out in single screw extruder and followed central composite rotational design for four factors or independent variables: cassava bran (%) soybean flour (%), temperature (ºC) and rotation (rpm) including a total of 25 treatments. The analysis was performed by SAS software. The characteristics of the products evaluated were: expansion index (EI), specific volume (SV), water absorption index (WAI), water solubility index (WSI), color, and thermal and paste properties. The physico-chemical composition of raw materials showed the high fiber content (21.77%) of cassava... (Complete abstract click electronic access below)

A mandioca é uma tuberosa amilácea de grande potencial energético, podendo ser utilizada tanto para o consumo in natura como para industrialização. Durante o processamento da mandioca para a produção de fécula são geradas quantidades significativas de resíduo fibroso (farelo), o qual apresenta potencialidade de uso como fonte de fibra alimentar. Estudos revelam os benefícios dos alimentos funcionais, o que tem despertado grande interesse de consumidores que desejam incorporar na sua dieta produtos ricos em componentes nutricionais que, além de nutrir, ainda são capazes de proteger o organismo contra doenças. Devido a esses fatores, a soja tem se destacado entre as leguminosas pelos diversos benefícios atribuídos ao seu consumo. A tecnologia de extrusão vem sendo explorada nos últimos anos para o desenvolvimento de novos produtos alimentícios. Essa tecnologia possibilita, com pouca ou nenhuma modificação dos equipamentos básicos e um controle apropriado do processo, a produção de uma grande variedade de produtos. Neste trabalho objetivou-se avaliar o efeito da composição da matéria-prima, da temperatura de extrusão e da rotação da rosca sobre as propriedades físicas e reológicas de produtos extrusados obtidos a partir de misturas de farelo e fécula de mandioca com farinha de soja. O processo de extrusão foi realizado em extrusor mono rosca e seguiu o delineamento “central composto rotacional”.para quatro fatores ou variáveis independentes para o farelo de mandioca (%) farinha de soja (%), temperatura (ºC) e rotação (rpm), totalizando 25 tratamentos. A análise dos resultados foi realizada pelo programa SAS. As características avaliadas nos produtos foram: índice de expansão (IE), volume específico (VE), índice de absorção de água (IAA), índice de solubilidade...

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

Keywords

Farinha de soja, Extrusion, Protein, Flour, Proteína, Extrusão, Starch, Amido, Farinha de mandioca, Fiber

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citations
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!
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