Abstract:

The aim of this study was to observe the regulatory effect of dietary fiber from Citrus maxima peel on body
weight and blood lipids in rats. SD rats were randomly divided into five groups including blank control (BCK), high fat
control (CK), high fat diet + 0.2 g/d of superfine dietary fiber powder (C1), high fat diet + 0.04 g/d of superfine dietary fiber
powder (C2), high fat diet + 0.2 g/d of superfine powder of extruded dietary fiber (C3), and high fat diet + 0.04 g/d of superfine
powder of extruded dietary fiber (C4). Several blood indexes such as TC, TG, HDL-C, LDL-C and AI were detected and
changes in blood lipids after 50 days of administration were observed. Compared with the CK group, the C4 groups showed
a significant reduction in serum TC level and AI (P＜0.05), though no significant differences in body weight, body fat
content or serum LDL-C level were observed (P ＞ 0.05). In conclusion, dietary fiber from Citrus maxima peel has laxative
effects and can regulate blood lipids in mice.

Key words: Citrus maxima, dietary fiber, blood lipid, regulation