Data/hora: 16/06/2024 17:39:42

Provedor de dados: | 52
País: | Brazil
Título: | Effect of treatment with alkaline hydrogen peroxide associated with extrusion on color and hydration properties of oat hulls
Autores: | Galdeano,Melicia Cintia; Grossmann,Maria Victória Eiras.
Data: | 2005-01-01
Ano: | 2005
Palavras-chave: | Dietary fiber; Oat hulls; Chemical modification; Functional properties.
Resumo: | An incomplete factorial design with three independent variables at three levels of variation was used to evaluate the effect of the treatment with alkaline hydrogen peroxide concomitant with extrusion on some properties of oat hulls. The independent variables were hydrogen peroxide level, feed moisture and extrusion temperature. The dependent variables were water retention capacity (WRC), swollen volume (SV) and color. The analysis of variance showed that temperature was the most important variable for the hydration properties. The highest values of WRC and SV were obtained when oat hulls were processed in the condition of 7% hydrogen peroxide, 32% feed moisture and 90ºC extrusion temperature. Modified hulls had a WRC 70% higher and SV 55% higher than the untreated material. The instrumental measure of color was conducted to analyze the modifications promoted due to the treatment in this parameter. The highest value of brightness was obtained with 7% hydrogen peroxide. The modifications in the fibers were accompanied indirectly through hydration properties.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100010
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132005000100010
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.48 n.1 2005
Fonte: | info:eu-repo/semantics/openAccess