Degradation of Konjac Glucomannan by Enzymes in Human Feces and Formation of Short-Chain Fatty Acids by Intestinal Anaerobic Bacteria.
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- MATSUURA Yasushi
- Department of Nutritional Science, Faculty of Health and Welfare Science, Okayama Prefectural University
Bibliographic Information
- Other Title
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- Degradation of Konjac Glucomannan by En
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Abstract
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.
Journal
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- Journal of Nutritional Science and Vitaminology
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Journal of Nutritional Science and Vitaminology 44 (3), 423-436, 1998
Center for Academic Publications Japan
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Details 詳細情報について
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- CRID
- 1390282681299977728
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- NII Article ID
- 130001370437
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- NII Book ID
- AA00703822
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- COI
- 1:CAS:528:DyaK1cXkvFWlsr0%3D
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- ISSN
- 18817742
- 03014800
- http://id.crossref.org/issn/03014800
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- NDL BIB ID
- 4547514
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- PubMed
- 9742462
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed