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

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Identification of Antioxidative Constituents from The Branches of Quercus gilva Blume

개가시나무 가지로부터 항산화성분의 규명

  • Moon, Mi-Youn (Department of Chemistry, Cheju National University) ;
  • Baik, Jong-Seok (Department of Chemistry, Cheju National University) ;
  • Kim, Sang-Suk (Department of Chemistry, Cheju National University) ;
  • Jang, Won-Jung (Department of Chemistry, Cheju National University) ;
  • Kim, Mi-Sun (Department of Beauty Design, Cheju Tourism College) ;
  • Lee, Nam-Ho (Department of Chemistry, Cheju National University)
  • 문미연 (제주대학교 자연과학대학 화학과) ;
  • 백종석 (제주대학교 자연과학대학 화학과) ;
  • 김상숙 (제주대학교 자연과학대학 화학과) ;
  • 장원정 (제주대학교 자연과학대학 화학과) ;
  • 김미선 (제주관광대학 뷰티디자인학과) ;
  • 이남호 (제주대학교 자연과학대학 화학과)
  • Published : 2009.09.30
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Abstract

Investigation of antioxidative constituents from the ethanol extract of Quercus gilva branches led to the identification of four compounds; catechin (1), epi-catechin (2), tyrosol (3) and tiliroside (4). The antioxidative activity was examined using DPPH radical and superoxide anion radical scavenging method. The isolated compounds 1, 2, 3 and 4 exhibited 94.2 %, 93.4 %, 33.6 % and 11.2 % scavenging activities respectively against DPPH radicals at the concentration of $100{\mu}L$/mL. As well, the compounds $1{\sim}4$ showed respectively 60.2 %, 35.1 %, 20.6 %, 4.5 % inhibition activities against superoxide anion radicals at $200{\mu}L$/mL. Interestingly, the compounds $1{\sim}4$ were isolated for the first time from Quercus gilva Blume.

개가시나무 가지의 에탄올 추출물에서 항산화활성을 관찰하였으며, 활성성분을 규명하기 위한 연구를 진행하였다. 그 결과, 4종류의 화합물을 분리하여 동정하였다. 분리 동정된 성분은 catechin(1), epi-catechin(2), tyrosol(3) 및 tiliroside(4)이다. 분리 성분의 항산화활성은 DPPH 라디칼 및 superoxide 음이온 라디칼 소거활성을 이용하여 측정하였다. 화합물 1, 2, 3, 4는 $100{\mu}L$/mL 농도에서 각각 94.2 %, 93.4 %, 33.6 %, 11.2 %의 DPPH 라디칼 저해활성을 나타내었다. 또한, 화합물 1, 2, 3, 4는 $200{\mu}L$/mL 농도에서 각각 60.2 %, 35.1 %, 20.6%, 4.5 %의 superoxide 음이온 라디칼 저해활성을 나타내었다. 화합물 $1{\sim}4$는 개가시나무에서는 처음으로 분리된 물질이다.

Keywords

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