Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Changes of Nutritional Characteristics and Serum Cholesterol in Rats by the Intake of Dietary Fiber Isolated from Ascidian (Halocynthia roretzi) Tunic

우렁쉥이 껍질로부터 정제한 식이섬유 급여 Rat의 영양학적 특성 및 혈청지질함량의 변화

  • 육홍선 (충남대학교 식품영양학과) ;
  • 김정옥 (세종대학교 가정학과) ;
  • 최정미 (건양대학교 미용디자인과) ;
  • 김동호 (한국원자력연구소 방사선식품생명공학연구팀) ;
  • 조성기 (한국원자력연구소 방사선식품생명공학연구팀) ;
  • 변명우 (한국원자력연구소 방사선식품생명공학연구팀)
  • Published : 2003.04.01
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Abstract

The effects of dietary fiber isolated from ascidian (Halocynthia roretzi) tunic on the changes of weight, total gut transit time, serum cholesterol and glucose level were investigated in rats. Twenty four male rats were divided into 4 groups and were fed a control diet and three fiber supplemented diets with 5,10 and 20% of ascidian insoluble cellulose for 4 weeks, respectively. Food intake was not affected by the supplemented diet of ascidian cellulose but the body weight gain and food efficiency ratio were reduced in proportion to a feeding amount of ascidian cellulose. The fecal output and fecal water content were increased, gut transit time was shortened, and length of gut was elongated in all dietary fiber groups. Serum cholesterol, LDL-cholesterol, neutral lipid, phospho-lipid and serum glucose concentrations were lowered and HDL-cholesterol was increased in rats fed the ascidian insoluble cellulose diet in proportion to a feeding amount of ascidian cellulose.

우렁쉥이 추출 불용성 식이섬유를 5%, 10%, 20% 첨가한 식이 후 실험쥐 집단의 영양생리학적 특성변화를 조사하였다. Cellulose 급여에 따른 총 식이량에는 차이가 없었으나 식이 중 cellulose의 함량이 높아짐에 따라 체중은 감소하였으며 식이효율의 조절, 배변량 증가, 변의 수분 증가, 식이의 장 통과시간 단축, 장 길이의 증가 등의 유의적인 효과를 나타내었다. 우렁쉥이 식이섬유를 급여한 실험쥐의 혈청분석 결과 total cholesterol, LDL-cholesterol, 중성 지질 및 인지질, 혈당은 식이섬유의 함량이 높아짐에 따라 감소하였으며 HDL-cholesterol은 식이섬유의 함량이 높아짐에 따라 증가하였다. 따라서 우렁쉥이 식이섬유를 첨가한 가공식품을 섭취할 경우 배변량의 조절, 변비 및 비만조절, 혈청 지질의 감소와 같은 유용한 생리적 효과가 있을 것으로 기대된다.

Keywords

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