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KMID : 1134820120410010033
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Journal of the Korean Society of Food Science and Nutrition
2012 Volume.41 No. 1 p.33 ~ p.40
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The Effect of Insoluble Dietary Fiber Extracted from Chinese Cabbage Waste on Plasma Lipid Profiles in Rats Fed a High Fat Diet
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Liu Wenli
Ko Kang-Hee
Kim Hag-Ryeol
Kim In Cheol
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Abstract
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This study investigated the lipid profiles for the possible improving activity of insoluble dietary fiber extracted from cabbage waste discarded during kimchi manufacture and market distribution. Enzyme-treated Insoluble Dietary Fiber (EIDF) is the remnants of crude dietary fiber (CDF) treated by α-amylase, protease, and amyloglucosidase after removal of soluble materials from cabbage waste. The insoluble dietary fiber of CDF and EIDF in cabbage waste was 65.33±0.33% and 73.57±0.09%, respectively. To examine the effects of EIDF on plasma cholesterol concentration, two group of rats were fed either a high fat diet (HFD) or a HFD containing 0.1～1.0% EIDF for 4 weeks. The body weight of all groups was not significantly different (p<0.05) but the body weight of EIDF＋HFD groups was less than that of the HFD group (p<0.1). Compared with the HFD group, EIDF also lowered serum levels of total triglycerides to 11.2～23.3% and cholesterol to 26.8～28.5%. In EIDF＋HFD groups, the HDL-cholesterol level increased by 7.2～26.1%, while LDL-cholesterol especially decreased by 51.0～61.4% and VLDL-cholesterol by 16.9～26.4%. The atherogenic index of EIDF＋HFD groups was also reduced twice that of the HFD group. From these results, EIDF from cabbage waste could be a potential effective food ingredient for improving lipid profiles.
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KEYWORD
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insoluble dietary fiber, chinese cabbage waste, plasma lipid, cholesterol reducing effect
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