Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Antioxidative Activities and Antiaging Effects of Geum aleppicum Jacq. Extracts

큰뱀무 추출물의 항산화 활성 및 항노화에 관한 연구

  • Kim, Min-Ji (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology) ;
  • Yang, Hyun-Gab (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology) ;
  • Park, Soo-Nam (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology)
  • 김민지 (서울과학기술대학교 자연생명과학대학 정밀화학과) ;
  • 양현갑 (서울과학기술대학교 자연생명과학대학 정밀화학과) ;
  • 박수남 (서울과학기술대학교 자연생명과학대학 정밀화학과)
  • Received : 2011.06.08
  • Accepted : 2011.06.17
  • Published : 2011.06.30
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Abstract

In this study, antioxidative effects and inhibitory effects of Geum aleppicum Jacq. extracts on tyrosinase and elastase were investigated. The ethyl acetate fraction of G. aleppicum Jacq. extract ($4.70\;{\mu}g$/mL) showed the most prominent free radical (1,1-diphenyl-2-picrylhydrazyl, DPPH) scavenging activity (FSC50). Reactive oxygen species (ROS) scavenging activities ($OSC_{50}$) of some G. aleppicum Jacq. extracts on ROS generated in $Fe^{3+}-EDTA/H_2O_2$ system were investigated using the luminol-dependent chemiluminescence assay. The ethyl acetate fraction showed the most prominent ROS scavenging activity ($0.22 \;{\mu}g$/mL). The protective effects of extract/fraction of G. aleppicum Jacq. against the rose-bengal sensitized photohemolysis of human erythrocytes were investigated. The G. aleppicum Jacq. extracts suppressed photohemolysis in a concentration dependent manner ($1{\sim}25{\mu}g$/mL), particularly the ethyl acetate fraction exhibited the most prominent celluar protective effect (${\tau}_{50}$, 416.20 min at $10 \;{\mu}g$/mL). The inhibitory effect of G. aleppicum Jacq. extracts on tyrosinase and elastase were investigated to assess their whitening and anti-winkle efficacy. The half maximal inhibitory concentration ($IC_{50}$) of the ethyl acetate fraction on tyrosinase was $95.23\;{\mu}g$/mL. The $IC_{50}$ of 50 % ethanol extract and the ethyl acetate fraction on elastase were $6.27 \;{\mu}g$/mL and $4.31 \;{\mu}g$/mL, respectively. These results indicate that extract/fraction of G. aleppicum Jacq. can function as antioxidants in biological systems, particularly skin exposed to UV radiation by scavenging $^1O_2$ and other ROS, and protect cellular membranes against ROS. Especially the ethyl acetate fraction of G. aleppicum Jacq. extracts could be applicable to new functional cosmetics for antioxidant, antiaging.

본 연구에서는 큰뱀무 추출물의 항산화 활성 및 미백과 주름에 관련된 tyroinase, elastase 저해 효과에 관한 조사를 수행하였다. 추출물의 free radical (1,1-diphenyl-2-picrylhydrazyl, DPPH) 소거활성($FSC_{50}$)은 ethyl acetate 분획에서 $4.70\;{\mu}g$/mL로 측정되었다. Luminol-의존성 화학발광법을 이용한 $Fe^{3+}-EDTA/H_2O_2$ 계에서 생성된 활성산소종(reactive oxygen species, ROS)에 대한 큰뱀무 추출물의 총 항산화능은 ethyl acetate 분획 $0.22\;{\mu}g$/mL로, ethyl acetate 분획에서 가장 큰 활성을 나타내었다. 큰뱀무 추출물에 대하여 rose-bengal로 증감된 사람 적혈구의 광용혈에 대한 억제 효과를 측정하였다. 큰뱀무 추출물의 경우 $1{\sim}25 \;{\mu}g$/mL의 농도에서 광용혈을 억제하였다. 특히 ethyl acetate 분획은 $10 \;{\mu}g$/mL 농도에서 ${\tau}_{50}$이 416.20 min으로 매우 큰 세포보호 효과를 나타내었다. 미백 효과측정으로는 tyrosinase의 활성 저해 효과($IC_{50}$)를 측정하였는데 ethyl acetate 분획에서 $95.23 \;{\mu}g$/mL로 나타났으며 elastase의 활성 저해 효과($IC_{50}$)는 50 % 에탄올 추출물과 ethyl acetate 분획이 각각 6.27, $4.31\;{\mu}g$/mL로 나타났다. 이상의 결과들은 큰뱀무 추출물이 $^1O_2$ 혹은 다른 ROS를 소광시키거나 소거함으로써, 그리고 ROS에 대항하여 세포막을 보호함으로써 생체계, 특히 태양 자외선에 노출된 피부에서 항산화제로서 작용할 수 있음을 가리킨다. 또한 큰뱀무 추출물의 ethyl acetate 분획의 tyrosinase, elastase 저해활성으로부터 항산화 및 항노화 화장품 소재로서의 응용 가능성을 확인하였다.

Keywords

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