HOME > EDICIONES > Año 2001, Volumen 51 - Número 1
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Uso de uma mistura alimentar contendo bioproteínas (Saccharomyces cerevisiae): efeitos sobre a gestação, a lactação e o crescimento de ratos
Silvana Ribeiro Passos de Oliveira, Francisca Martins Bion, Silvia Maria Limongi Lopes, Anastácia Cavalcanti Metri
Departamento de Nutrição e Departamento de Patologia, Centro de Ciências da Saúde da Universidade Federal de Pernambuco. Brasil.
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SUMMARY
Use of a diet containing yeast protein (Saccharo-myces cerevisiae): effects upon pregnancy, lactation and the development of rats
The nutritive value of manioc flour (Manihot esculenta) enriched with yeast protein (Saccharomyces cerevisiae) added to a food mixture most frequently consumed by low-income populations was assessed in female Wistar rats (n=30; 100-120 days old). Animals were divided into three groups, mated and had free access to diets and water. Diets were as follows: beans, rice, yeast-enriched manioc flour (BRYMF17) ; beans, rice, manioc flour (BRMF13) ; casein (17% protein) (CAS17). Body weight gains and food consumption were recorded during pregnancy and lactation. At the parturition , the number of pups per litter was recorded and offspring were uniformly distributed (7 pups per litter). Weight gains were determined until weaning (21 days). At weaning two youngs were selected from each litter and individually housed. Weight gains, food consumption and the length of the tail were measured until rats were 70 days old. Rats had their liver and brain removed for protein determination and wet and relative weights. Liver samples were histologically examined. Blood hemoglobin, hematocrit and proteins, as well as the Food Efficiency Ratio (FER), were determined. ANOVA and Tukey's test were used. The experimental diet had not significant effect on pregnant and lactating dams. Values for the investigated parameters were higher in experimental youngs than in their controls and lower than in the standard group. This yeast protein-enriched manioc flour proved to valid in terms of dietary supplementation.
Key words: Saccharomyces cerevisiae, yeast protein, supplementation with yeast, pregnant rat, lactating rat.
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ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83
Sociedad Latinoamericana de Nutrición
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