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標題: Effects of fibre derived from passion fruit seed on the activities of ileum mucosal enzymes and colonic bacterial enzymes in hamsters
作者: Chau, C.F.
Huang, Y.L.
Chang, F.Y.
關鍵字: passion fruit seed;insoluble fibre;enzyme;ammonia;intestinal health;hamsters;beta-glucuronidase activity;dietary fiber;rats;food
Project: Journal of the Science of Food and Agriculture
期刊/報告no:: Journal of the Science of Food and Agriculture, Volume 85, Issue 12, Page(s) 2119-2124.
Passion fruit, a popular tropical fruit, produces a large quantity of edible seeds as agricultural byproducts after juice extraction. The defatted passion fruit seed (PFS) contained a high level of insoluble fibre (similar to 90%, w/w) of desirable characteristics and physicochemical properties. Cellulose, pectic substances and hemicellulose were the major structural polysaccharides of the PFS insoluble fibre. In this study, the influence of the PFS insoluble fibre on the activities of ileum mucosal enzymes and colonic bacterial enzymes was investigated. It was found that the incorporation of the PFS insoluble fibre into a fibre-free diet at 5% level significantly (p < 0.05) enhanced the intestinal amylase activity (137%), reduced the caecal pH (6.22), decreased the caecal ammonia content (-38.6%) and faecal ammonia output (-21.2%), and also decreased the activities of beta-D-glucosidase (-37.4%), beta-D-glucuronidase (-52.9%), mucinase (-35.5%) and urease (-91.4%) in faeces. Our results suggested that PFS insoluble fibre might exert favourable effects on intestinal health. The fact that PFS insoluble fibre was more effective than cellulose in improving intestinal health suggested it could be exploited as a new functional ingredient to promote intestinal function and health. (c) 2005 Society of Chemical Industry.
ISSN: 0022-5142
DOI: 10.1002/jsfa.2230
Appears in Collections:食品暨應用生物科技學系

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