The Effect of Insoluble Dietary Fiber Extracted from Chinese Cabbage Waste on Plasma Lipid Profiles in Rats Fed a High Fat Diet

Abstract

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.Key words: insoluble dietary fiber, chinese cabbage waste, plasma lipid, cholesterol reducing effect † Corresponding author. E-mail: ickim@mokpo.ac.kr † Phone: 82-61-450-2426, Fax: 82-61-454-7916 3)

Muffins enriched with dietary fiber from kimchi by‐product: Baking properties, physical–chemical properties, and consumer acceptance

“…As the consumption of kimchi increases, so does the waste derived from the kimchi trimming process (Choi & Park, ). This waste mainly consists of the outer leaves of Chinese cabbage, which are usually discarded or used as fertilizer or animal feed (Jongaroontaprangsee et al, ) but also causing environmental and economic issues due to their rapid decay in the natural environment and high processing costs (Liu, Ko, Kim, & Kim, ). However, the outer leaves of Chinese cabbage have high fiber content, making them a good source of dietary fiber (Lario et al, ).…”

“…environmental and economic issues due to their rapid decay in the natural environment and high processing costs (Liu, Ko, Kim, & Kim, 2012). However, the outer leaves of Chinese cabbage have high fiber content, making them a good source of dietary fiber (Lario et al, 2004).…”