The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Effects of Edible Lentinus tuber-regium on the Obesity and Lipid Metabolism of SD Rats

유용버섯 Lentinus tuber-regium이 비만 및 지질대사에 미치는 영향

  • Choi, Jin-Ho (Lab. of Biochemistry, Faculty, of Food Science & Biotechnology, Pukyong National University) ;
  • Park, Soo-Hyun (Lab. of Biochemistry, Faculty, of Food Science & Biotechnology, Pukyong National University) ;
  • Kim, Dae-Ik (Lab. of Biochemistry, Faculty, of Food Science & Biotechnology, Pukyong National University) ;
  • Kim, Jeung-Min (Lab. of Biochemistry, Faculty, of Food Science & Biotechnology, Pukyong National University) ;
  • Kim, Chang-Mok (Department of Biochemistry, Korean Institute of Industry and Technology Information) ;
  • Kim, Gwang-Po (Department of Applied Microbiology, National Institute of Agricultural Science & Technology, RDA)
  • 최진호 (부경대학교 식품생명공학부 생화학연구실) ;
  • 박수현 (부경대학교 식품생명공학부 생화학연구실) ;
  • 김대익 (부경대학교 식품생명공학부 생화학연구실) ;
  • 김정민 (부경대학교 식품생명공학부 생화학연구실) ;
  • 김창목 (한국산업정보기술연구원 생화학실) ;
  • 김광포 (농촌진흥청 농업과학기술원 응용미생물과)
  • Published : 2001.04.30
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Abstract

Obesity and lipid metabolism of SD rats were studied with an edible Nigerian mushroom, namely, Lentinus tuber-regium (Fries) Singer. Experimental diets prepared with Lentinus tuber-regium (LTR) instead of carbohydrates were fed to SD rats for 6 weeks. Body weights gain were decreased (3.2% and 29.3%, respectively) In LTR-50 and LTR-100 groups, whereas food intakes were significantly increased (24.5% and 40.7%, respectively) compared with control group. Feed efficiencies were significantly decreased (22.2% and 49.8%, respectively) in these two LTR groups, whereas gross efficiencies (GE) were increased (9.9% and 10.4%, respectively) compared with control group. The ratios of diet intake (DI)/metabolic body size (MBS) were remarkably increased (50.3% and 136.1%, respectively) in these groups. Triglyceride and LDL-cholesterol levels were significantly decreased (22.4% and 32.6%, 8.3% and 12.7%, respectively) in these two groups, but HDL-cholesterol levels were desirably increased by $3{\sim}10%$ in LTR-added groups. Atherogenic indices (Als) were significantly decreased about $8{\sim}13%$ in LTR-added groups compared with control group. These results suggest that an edible mushroom, Lentinus tuber-regium may inhibit obesity in above 50%-LTR by increasing a diet intake, GE and DI/MBS ratio, but may also effectively modulate a chronic degenerative diseases by improving a lipid metabolism.

SD계 랫트를 사용하여 6주 동안 탄수화물 대용으로 50% 및 100%의 Lentinus tuber-regium(LTR)-첨가 투여그룹의 비만 및 지질대사에 미치는 영향을 평가하였다. LTR-50 및 LTR-100 투여그룹의 체중 증가는 대조그룹 대비 각각 3.2%, 29.3%의 억제효과로 나타났는데도 사료 섭취량은 대조그룹 대비 오히려 24.5% 및 40,7%나 증가했다. 이들 LTR-첨가사료의 사료효율이 대조그룹 대비 22% 및 50%나 현저히 감소했는데도 불구하고 에너지효율은 이와는 반대로 두 그룹 모두 약 10%의 GE 증가효과가 인정되었다. LTR-50 및 LTR-100 투여그룹의 대사체중에 대한 사료 섭취량의 비(DI/MBS ratio)는 대조그룹 대비 50.3% 및 136.1%나 매우 유의적인 증가현상이 인정되었다. LTR-50 및 LTR-100 투여그룹은 대조그룹 대비 22.4% 및 32.6%나 현저한 TG 함량의 억제효과가 인정되었고 이들 LTR 투여그룹은 대조그룹 대비 8.3% 및 12.7%나 유의적인 LDL-콜레스테롤의 혈관축적 억제효과가 인정되었다. 이들 LTR투여그룹은 대조그룹 대비 $3{\sim}$10%의 효과적인 HDL-콜레스테롤의 생성효과가 인정되었다. 또한 이들 LTR 투여그룹의 동맥경화지수(Al) 는 대조그룹 대비 $8{\sim}13%$의 상당히 유의적인 Al의 감소효과가 인정되었다. 이상의 결과를 종합해 볼 때 탄수화물 대용으로 LTR의 50%이상 투여에서는 비만을 매우 효과적으로 억제할 수 있을 뿐만 아니라 LTD의 50%이하 부여에서는 가축의 대체사료 개발에 기여할 수 있을 것으로 기대된다. 또한 이들 LTR-첨가사료는 TG, LDL-콜레스테롤 및 동맥경화지수(Al)의 감소, 그리고 HDL-콜레스텔롤의 증가 때문에 성인병을 매우 효과적으로 억제할 수 있을 것으로 기대된다.

Keywords

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