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

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Antioxidative Effect and Active Component Analysis of Quercus salicina Blume Extracts

참가시나무의 항산화 효과 및 활성 성분 분석

  • Lee, Hye-Jin (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology and Science) ;
  • Park, Soo-Nam (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology and Science)
  • 이혜진 (서울과학기술대학교 자연생명과학대학 정밀화학과) ;
  • 박수남 (서울과학기술대학교 자연생명과학대학 정밀화학과)
  • Received : 2011.06.03
  • Accepted : 2011.06.13
  • Published : 2011.06.30
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Abstract

In this study, the antioxidative activity, inhibitory effects on tyrosinase and elastase, and active components of Quercus salicina Blume extracts were investigated. Q. salicina Blume was extracted using 50 % ethanol, from which ethyl acetate and aglycone fractions were prepared. The DPPH (1,1-diphenyl-2-picrylhydrazyl) scavenging activity ($FSC_{50}$) of Q. salicina Blume aglycone fraction was the highest ($8.25\;{\mu}g$/mL). The luminol-dependent chemiluminescence assay showed that reactive oxygen species (ROS) scavenging activities ($OSC_{50}$) of Q. salicina Blume aglycone fraction on ROS generated in $Fe^{3+}-EDTA/H_2O_2$ system was the most prominent at $0.039\;{\mu}g$/mL. The protective effects of extract/fractions of Q. salicina Blume against the rose-bengal sensitized photohemolysis of human erythrocytes were increased in a concentration dependent manner ($1{\sim} 25\;{\mu}g$/mL). Especially, ${\tau}_{50}$ of aglycone fraction in $10 \;{\mu}g$/mL concentration showed the most protective effect at 259.9 min. The inhibitory effects ($IC_{50}$) on tyrosinase and elastase of Q. salicina Blume extracts were higher at aglycone fraction (respectively, $21.82 \;{\mu}g$/mL, $41.18\;{\mu}g$/mL). Active component analysis by TLC and HPLC showed quercetin, keampferol, catechin, quercitrin, isoquercitrin, hyperoside, and etc. These results indicate that Q. salicina Blume extract has strong antioxidative activity and can be used as antioxidant. Particularly, aglycone fraction of Q. salicina Blume showed superior antioxdative activity and high inhibitory effect on tyrosinase and elastase. Therefore, aglycone fraction of Q. salicina Blume could be applicable to new functional cosmetics.

본 연구에서는 참가시나무 추출물의 항산화 활성, tyrosinase 및 elastase 저해 활성, 그리고 추출물들의 성분을 확인하였다. 참가시나무는 50 % ethanol을 이용해 추출하였으며, 이 추출물을 이용해 ethyl acetate 분획, aglycone 분획을 만들어 실험에 사용하였다. 참가시나무 추출물의 DPPH (1,1-diphenyl-2- picrylhydrazyl) 소거활성($FSC_{50}$)은 aglycone 분획($8.25 \;{\mu}g$/mL)에서 가장 큰 활성을 나타내었다. Luminol 발광법을 이용한 $Fe^{3+}-EDTA/H_2O_2$ 계에서 생성된 활성산소종에 대한 aglycone 분획의 소거활성(총 항산화능, $OSC_{50}$)은 $0.039\;{\mu}g$/mL로 매우 큰 활성을 나타내었다. 참가시나무 추출물의 rose-bengal로 증감된 $^1O_2$에 의한 적혈구 파괴에 대한 세포보호 효과는 모든 분획에서 농도 의존적($1-25\;{\mu}g$/mL)으로 증가하였으며, 특히 aglycone 분획은 $10 \;{\mu}g$/mL 농도에서 ${\tau}_{50}$이 259.9 min으로 높은 세포 보호 활성을 나타내었다. 참가시나무 추출물중 aglycone 분획의 tyrosinase 저해활성($IC_{50}$)과 elastase 저해활성($IC_{50}$)은 각각 $21.82\;{\mu}g$/mL 및 $41.18\;{\mu}g$/mL 큰 활성을 보여주었다. TLC와 HPLC를 이용한 성분분석 결과 quercetin, keampferol, catechin, quercitrin, isoquercitrin, hyperoside 등이 존재함을 확인하였다. 이상의 결과들로부터 참가시나무 추출물은 활성산소종을 소거하는 항산화제로 이용가능하며, 특히 aglycone 분획의 현저한 항산화 작용 및 큰 tyrosinase 및 elastase 저해 효과로부터 이들 분획 또한 화장품원료로서 응용 가능성이 큼을 알 수 있었다.

Keywords

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