Degradation of Konjac Glucomannan by Enzymes in Human Feces and Formation of Short-Chain Fatty Acids by Intestinal Anaerobic Bacteria
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概要
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Konjac (konnyaku) glucomannan was examined for its deg radation in human intestines and fermentation products. The konjac glucomannan was degraded almost 100% by soluble enzymes in human feces to give 4-O-β-D-mannopyranosyl-D-mannopyranose (β-1, 4-D-man nobiose), 4-O-β-D-glucopyranosyl-D-glucopyranose (cellobiose), 4-O-β-D glucopyranosyl-D-mannopyranose, and small amounts of glucose and mannose. These three disaccharides were further degraded by a cell associated enzyme(s) to glucose or mannose, or to both. Konjac gluco mannan underwent fermentation by intestinal anaerobic bacteria and produced formic acid, acetic acid, propionic acid, and 1-butyric acid. These fatty acids were different in their proportions among test subjects, their total amounts ranging from 17.1% to 48.8% of the initial konjac glucomannan.
- 財団法人 学会誌刊行センターの論文
著者
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Matsuura Yasushi
Department Of Food Science Okayama Prefectural Junior College
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MATSUURA Yasushi
Department of Nutritional Science, Faculty of Health and Welfare Science, Okayama Prefectural University
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