Increase of the small intestine length and weight and liver and pancreas weigth of rats due to the ingestion of cooked common bean and casein added of dietetic fibers with growing proportion and similar solubility of the common bean. / Aumento do comprimento e peso do intestino delgado, do peso do figado e pancreas de ratos devido a ingestão de feijão-comum cozido e de caseina acrescida de fibras dieteticas com teores crescentes e solubilidade similar a do feijão-comum.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The consumption of the cooked common bean is associated to trophic effect in the small intestine, in the liver and pancreas. The low digestibility and biological value of the bean proteins and the dietetic fibers are major factors for this effect, causing increase of weight in the liver and the pancreas. Thus, the present study was made in order to quantify the digestive organs enlargement (liver, pancreas and small intestine) of rats fed diets with increasing additions of 5.0% (control group), 10.0%, 12.5% and 15.0% of dietetic fibers and resistant starch to the diets containing casein as protein source, with the same proportion of insoluble, soluble and resistant starch found in the beans (8: 3: 1). The diet containing cooked common bean as protein source contained 11.9% of dietetic fibers and 1.0% of resistant starch. Sixty male growing rats of the Wistar strain with 21 to 23 days-old were randomly divided in 6 groups. The animals had free access to water and food during the 14 days of biological assay (4 days of adaptation and 10 of experiment). Groups maintained on the common bean diet and casein diet with increasing addition of dietetic fibers showed an enlargement of small intestine, liver and pancreas as compared (p<0.05) to the rats fed the casein diet (control group), with an increase in the length and weight of the small intestine and in the liver and pancreas weight of: 47.12%, 33.42%, 25.14% e 50.00% respectively, for rats fed the common bean diet (CB) and 21.43% for the rats fed the casein plus 15.0% of dietetic fibers and resistant starch (C15.0%). In relation to small intestine thickness, there was no statistical differences (p>0.05) among the groups. Diet containing cooked common bean as protein source increased organs weight and the small intestine length and the casein diet with 15.0% of dietetic fibers and resistant starch increased the pancreas weight.

ASSUNTO(S)

resistant starch digestive organs aparelho digestivo rat amido resistente rato feijão comum common bean

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