Effects of Soluble Dietary Fibers on Lipid Metabolism and Activities of Intestinal Disaccharidases in Rats
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概要
- 論文の詳細を見る
The present study was aimed to investigate the effects of indigestible dextrin and polydextrose, soluble dietary fibers with low molecular weight, on lipid metabolism and disaccharidase activities of intestinal mucosa in rats fed a high sucrose diet. Their effects were compared with those of well-known soluble fibers, pectin, and guar gum, and also with an insoluble fiber, cellulose. Dietary fibers added to diets at the 5% (w/w) level were a-cellulose, pectin, guar gum, indigestible dextrin, and polydextrose. Male Sprague-Dawley rats were given free access to test diets for 6 weeks. Body weight gain was the lowest in rats fed guar gum, the highest in rats fed cellulose, and in-between in rats fed other diets. Although guar gum, pectin, and indigestible feeding dextrin had lower plasma lipid values than cellulose feeding did, the differences were statistically insignificant. Liver triglyceride of the guar gum-fed group was about a third that of the cellulose-fed group, but although those of rats fed polydextrose, indigestible dextrin, and pectin were lower than that of cellulose, the differences were insignificant. Liver cholesterol and phospholipid concentrations were similar among groups. Daily fecal excretion of total lipid, cholesterol, and bile acids were highest in rats fed guar gum, followed by pectin-fed and cellulose-fed rats, and the lowest in rats fed indigestible dextrin and polydextrose. Jejunal sucrase activity was low in the order of guar-gum, polydextrose, indigestible dextrin, pectin, and cellulose. The results indicate that the hypolipidemic effect of soluble dietary fibers would be lessened with reduction in molecular weight, but that the lower sucrase activity by soluble fibers with low molecular weight might be beneficial for hypoglycemic effect.
- 財団法人 学会誌刊行センターの論文
著者
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Cho Sung-hee
Department Of Food Science And Nutrition Catholic University Of Daegu
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Lee Hee-jung
Department Of Diagnostic Radiology Keimyung University Dongsan Medical Center
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CHOI Young-Sun
Department of Food & Nutrition, Taegu University
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Kim Hye-jin
Department Of Biological Sciences (bk21 Program) And Immunomodulation Research Center University Of
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LEE Hee-Jung
Department of Food Science and Nutrition, Catholic University of Taegu-Hyosung
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CHO Sung-Hee
Department of Food Science and Nutrition, Catholic University of Taegu-Hyosung
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CHOI Young-Sun
Department of Food and Nutrition, Taegu University
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