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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Anti-obesity Effects of Water and Ethanol Extracts of Black Ginseng

흑삼의 열수 및 에탄올 추출물의 항비만 효과

  • Park, Hye-Jin (Research Institute of Obesity Sciences, Sungshin Women's University) ;
  • Kim, Ae-Jung (The Graduate School of Alternative Medicine, Kyonggi University) ;
  • Cheon, Yong-Pil (Division of Developmental Biology and Physiology, School of Biosciences and Chemistry, Sungshin Women's University) ;
  • Lee, Myoungsook (Research Institute of Obesity Sciences, Sungshin Women's University)
  • 박혜진 (성신여자대학교 비만과학연구소) ;
  • 김애정 (경기대학교 대체의학대학원) ;
  • 전용필 (성신여자대학교 생명과학화학부) ;
  • 이명숙 (성신여자대학교 비만과학연구소)
  • Received : 2014.11.05
  • Accepted : 2014.12.02
  • Published : 2015.03.31
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Abstract

Black ginseng was made by steaming raw white ginseng nine times at $100^{\circ}C$ for 2 h and drying. We then performed pilot experiments using the nine black ginseng extracts for different steaming and drying times to determine their anti-obesity effects. Two ginseng extracts, steaming and drying five times (FSFD) and steaming and drying nine times (NSND), prepared in water or ethanol solution decreased lipid accumulation of 3T3-L1 cells. FSFD in water and ethanol extracts showed higher levels of ginsenosides, in particular, Rh1, Rg2, and Rb1 than NSND, and levels of the three ginsenosides were higher in ethanol extracts than in water extracts. Treatment with FSFD and/or NSND in ethanol extracts significantly regulated $PPAR{\gamma}$, C/$EBP{\alpha}$ and AMPK phosphorylation in 3T3-L1 cells. We verified doubling time of stem cells from both abdominal fat and subcutaneous fat after FSFD and NSND in ethanol and water extracts were added. Although addition of FSFD and NSFD in water extracts had no effects on proliferation, ethanol extracts with FSFD and NSND increased doubling time of stem cells in subcutaneous fat. FSFD and NSND in ethanol extracts more effectively reduced adipogenesis compared to those in water extracts. FSFD in ethanol extracts promoted secretion of anti-inflammatory cytokine such as IL-10 and depressed MCP-1 infiltration in 3T3-L1 preadipocytes co-cultured with RAW264.7 cells. We concluded that FSFD and NSND ethanol extracts may be developed as a functional food for its anti-obesity effect, but anti-inflammatory effect was shown in ethanol extracted FSFD rather than in NSND.

본 연구는 구중구포법 과정의 흑삼 1~9포를 대상으로 열수 및 70% 에탄올 추출물의 ginsenosides을 분석한 결과 생리 활성이 높다고 판단한 흑삼 5포와 9포 열수 및 에탄올 추출물을 각각 3T3-L1 지방세포, RAW264.7 대식세포, 지방유래 줄기세포에 처치하여 세포독성, 지질축적(adipogenesis) 및 염증인자 변화를 관찰하였다. 본 연구에서는 열수 추출물보다 에탄올 추출물 흑삼에서 효율적으로 ginsenosides가 추출되었다. 또한 흑삼 에탄올 추출물이 $PPAR{\gamma}$ 및 C/$EBP{\alpha}$ 감소, AMPK의 인산화 증가 등 adipogenesis 관련인자를 억제하였으며, 아울러 염증성 사이토카인의 분비를 억제하였다. 따라서 비만 및 대사성 질환의 예방에도 잠정적으로 이용될 수 있을 것으로 기대되지만 ginsenosides와 비만과의 조절기전 연구 및 항염증성 기전 등에 대한 정확한 기전 규명이 필요하다. 현재 인삼에 함유된 ginsenosides를 이용하여 체지방 감소 등의 기능성식품으로 많이 개발되고 있는 현실을 감안해 볼 때 홍삼 및 흑삼의 제조 기술인 구증구포법의 효율적인 표준화 공정기술, 유효 생리활성 성분의 대량 생산 및 안전성 기술 등이 개발된다면 항비만에 대한 고부가 가치 상품개발이 가능할 것으로 기대된다.

Keywords

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