Efeitos da concentração do café torrado micronizado e temperatura de processo nas propriedades tecnológicas de extrusados à base de arroz

Autores

DOI:

https://doi.org/10.33448/rsd-v10i4.14529

Palavras-chave:

Café; Extrusão termoplástica; Processo físico; Propriedades tecnológicas.

Resumo

Novos ingredientes em produtos extrusados estão sendo inseridos para aumentar a saudabilidade e a regionalidade destes produtos. Entretanto, para se obter um produto com boa aceitação por parte dos consumidores, é necessário compreender primeiro quais variáveis de processo podem interferir na qualidade tecnológica do mesmo. Este trabalho teve como objetivo avaliar os efeitos da concentração de café torrado e micronizado (MRC) e da temperatura nas propriedades tecnológicas de extrusados à base de arroz. Os extrusados foram elaborados com 3 e 8% de MCR em substituição à farinha de arroz e processados em extrusora monorosca a 140 e 180 oC. Estes foram avaliados quanto à cor, índice de expansão, dureza, bowl-life, porosidade, índices de absorção e solubilidade em água e propriedades de pasta. Para avaliar os efeitos das variáveis de processo foi aplicada análise de variância e teste Scott-Knott (p<0.05) para comparação das médias. O aumento da concentração de café reduziu os valores dos parâmetros de cor e a dureza, já o aumento da temperatura influenciou na expansão. Para as demais propriedades avaliadas, as duas variáveis influenciaram em conjunto. O estudo mostrou que MRC é fonte potencial de fibras e de pigmentos naturais, apresentando uma influência direta nas principais propriedades tecnológicas do produto final.

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Publicado

22/04/2021

Como Citar

SAMPAIO, U. M.; CAMPELO, P.; CHANG, Y. K.; CLERICI, M. T. P. S. Efeitos da concentração do café torrado micronizado e temperatura de processo nas propriedades tecnológicas de extrusados à base de arroz. Research, Society and Development, [S. l.], v. 10, n. 4, p. e54510414529, 2021. DOI: 10.33448/rsd-v10i4.14529. Disponível em: https://www.rsdjournal.org/index.php/rsd/article/view/14529. Acesso em: 19 maio. 2024.

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Seção

Ciências Agrárias e Biológicas