Effect of Fermented Chub Mackerel Extract on Lipid Metabolism of Rats Fed Diets without Cholesterol

  • Santoso, U. (Department of Animal Science, Faculty of Agriculture, Bengkulu University) ;
  • Ishikawa, S. (Poultry Institute) ;
  • Tanaka, K. (Laboratory of Animal Nutrition, Division of Bioresources and Bioproduction, Graduate School of Agriculture Hokkaido University)
  • Received : 2000.09.22
  • Accepted : 2000.11.28
  • Published : 2001.04.01


The present study was conducted to evaluate the effect of fermented chub mackerel extract (FCME) on lipid metabolism in rats fed diets without cholesterol. Four week-old male rats were divided into three groups of 10 rats with 0, 1% or 2% FCME supplementation to the diets. Purified diets were used in the present study. Feed and water were fed ad libitum. FCME supplementation had no effect on the activities of acetyl-CoA carboxylase, fatty acid synthetase, and the content of free cholesterol, triglyceride and phospholipid in the liver (p>0.05). 1% FCME supplementation significantly increased serum triglyceride (p<0.05) and hepatic 3-hydroxy-3-methylglutaryl-CoA reductase activity (p<0.05) with no effect on serum total cholesterol, free cholesterol and phospholipid concentration. FCME supplementation significantly reduced serum LDL+VLDL-cholesterol (p<0.01) and atherogenic index (p<0.01) with no effect on HDL-cholesterol. The current study showed that FCME inclusion might reduce the risk of atherosclerosis in rats fed diet without cholesterol.

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