Chau, C.-F.C.-F.ChauFUU SHEUHuang, Y.-L.Y.-L.HuangSu, L.-H.L.-H.Su2018-09-102018-09-102005http://www.scopus.com/inward/record.url?eid=2-s2.0-18944380211&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/317151The water-insoluble fibre-rich fraction (WIFF) was isolated from the peel of Citrus sinensis L cv Liucheng in an economical way. The influences of a WIFF-containing diet on the intestinal function and health in hamsters were investigated and compared with those of cellulose-added and fibre-free diets. Our results showed that the inclusion of WIFF in a fibre-free diet might result in some significant improvements in serum, intestinal, caecal and faecal parameters, such as elevated serum alkaline phosphatase activity (127%), increased intestinal maltase and sucrase activities (180 and 164% respectively), decreased caecal pH (6.30), reduced caecal and faecal ammonia contents (by 25.4 and 34.1% respectively) and decreased activities of faecal β-D-glucosidase (by 48.1%), β-D-glucuronidase (by 52.9%) and urease (by 81.5%). These results suggested that the incorporation of WIFF in the diet at a level of 50 g kg-1 might exert a favourable effect on intestinal function and health. Accordingly, WIFF could be exploited as a potential functional ingredient in human diets and also offer industries an opportunity to develop new formulations of fibre-rich functional foods. ? 2005 Society of Chemical Industry.Bacterial enzyme; Citrus sinensis L cv Liucheng; Fibre-rich fraction; Intestinal health; Peel fibre[SDGs]SDG3Bacteria (microorganisms); Citrus sinensis; Cricetinaejournal article10.1002/jsfa.2082