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O presente trabalho visou a investigar o efeito da ingestão do resíduo do abacaxizeiro no nível do colesterol total, HDL-colesterol e LDL-colesterol em ratos em comparação com a pectina cítrica, e verificar o comportamento dos animais em relação ao consumo alimentar e ao ganho de peso nos períodos de 15, 30 e 45 dias. As dietas do resíduo proporcionaram um maior consumo alimentar quando comparadas às dietas de pectina. O maior ganho de peso foi observado nas dietas: controle e com 10% de resíduo aos 15 e 30 dias, e aos 45 dias somente a dieta controle. O resíduo proporcionou um ganho de peso intermediário e a pectina, o menor ganho de peso. Os tratamentos com a pectina foram mais efetivos na redução do colesterol total; no entanto, aos 15 dias, as dietas com 10% e 15% de resíduo, aos 30 dias a dieta com 10% de resíduo, e todas as dietas contendo resíduo aos 45 dias. A concentração plasmática do HDL-colesterol foi aumentada em quase todas as dietas, com exceção da dieta com 25% de pectina, que reduziu este nível aos 15 dias, e aos 30 dias o manteve igual ao da dieta- controle; e as dietas do resíduo que proporcionaram redução e manutenção do teor do HDL-colesterol aos 45 dias quando comparada a dieta controle. O LDL-colesterol foi reduzido em todos os tratamentos, principalmente para as dietas contendo pectina. The present work aimed to investigate the effect of pineapple residue on total cholesterol levels, HDL-cholesterol and LDL- cholesterol of rats in comparison with the citric pectin, and to verify the rats behavior in relation to the food intake and weight gain at 15, 30 e 45 days. Residue diets provided higher food consumption when compared to the pectin diets. The highest weight gains was observed for the following control-diets and 10% of residue at 15 and 30 days, and at 45 days only for control-diet. Residue provided intermediate weight gains and the pectin the smallest weight gain. Pectin treatments were more effective in the reduction of the total cholesterol; however, at 15 days, the diets with 10% and 15% of residue, at 30 days the diet with 10% of residue, and all the residue diets at 45 days. Plasmatic concentration of the HDL-cholesterol was increased in almost all the diets, except for the diet with 25% of pectin, which reduced this level at 15 days, and at 30 days maintained it equal to that of control diet. Residue diets provided both reduction and maintenance of HDL-cholesterol levels at 45 days when compared to the CONTROL-diet. O LDL-cholesterol was reduced in all treatments, principally to the pectin diets

food science and technology

Comparação entre o efeito do resíduo do abacaxizeiro (caules e folhas) e da pectina cítrica de alta metoxilação no nível de colesterol sangüíneo em ratos