Effect of Fiber on Serum Lipid Metabolism in Rats with Diet-Induced Cholesterolemia

식이섬유가 고콜레스테롤혈증 흰쥐의 혈청 지질대사에 미치는 영향

  • 조수열 (영남대학교 식품영양학과) ;
  • 장주연 (영남대학교 식품영양학과) ;
  • 이미경 (영남대학교 식품영양학과) ;
  • 김명주 (대구산업정보대학 식품영양과)
  • Published : 1998.12.01

Abstract

The study was conducted to investigate the effect of cholesterol and fiber on serum lipid metabolism in rats. Male Sprague Dawley rats were administrated 1% cholesterol and 0.25% sodium cholate to induce hypercholesterolemia and were fed on diet containing three concentrations(0%, 5%, 10%) of cellulose and pectin, respectively. The rats were sacrified after 5 weeks of feeding periods. Serum triglyceride concentration was significantly decreased in proportion to level of fiber. Phospholipid concentration was more decreased in 10% fiber groups than 5% fiber groups but did not show any difference by fiber types. Free cholesterol and cholesteryl ester concentrations in serum were significantly decreased by fiber supplement and pectin was more effective than cellulose in cholesterol lowering effect. Whereas HDL cholesterol concentration and HDL C/TC were increased in proportion to level of fiber and the effect of pectin was not more significant than that of cellulose. Serum chylomicron cholesterol concentration also showed significant decrease by pectin supplement and LDL , VLDL cholesterol concentrations were more significantly decreased in 10% fiber groups than those of 5% fiber groups. The results indicate that 10% pectin may have beneficial roles in hypercholesterolemia.

Keywords

References

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