Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Screening of the Antioxidant Defense Systems from Parthenocisuss tricuspidata PLANCH

담쟁이덩굴의 항산화 방어계의 탐색

  • 정형진 (안동대학교 자연과대학 생명자원과학부) ;
  • 김충현 (안동대학교 자연과대학 생명자원과학부)
  • Published : 2001.06.01
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Abstract

The non-enzymatic antioxidants and antioxidant enzyme from the extracts of Parthenocissus tricuspidata PLANCH. were examined in order to utilize natural product for cerchemopreventive agents. The antioxidant potential and enzyme activities on plant positions in the extracts of Parthenocisuss tricuspidata PLANCH. showed considerable differences. The antioxidant activity of the leaf extracts by Ethyl acetate fractions of Parthenocisuss tricuspidata PLANCH. was the highest among three positions ($7.57\mu\textrm{g}/m\ell$). The highest activities showed in S-5 (in leaf), S-4 (in stem) and S-3 (in root) fraction by Silicagel column chromatography and the antioxidant activity showed, in purified extract of each positions, $7.06\mu\textrm{g}/m\ell$ (in leaf), $6.99\mu\textrm{g}/m\ell$ (in stem) and $12.39\mu\textrm{g}/m\ell$ (in root) respectively. The activities of DPPH by LH-20 column chromatography revealed much higher than those by silica-gel column chromatography. These were identified as the phenolic compounds known as antioxidant compounds such as Benzoic acid(Gallic acid), 1-methyl-3-(2-phenylethen) benzene, phloroglucinol and 1,2-dihydroxy-4-(1-propyl)benzene by GC/MS. POD activities in the stem and root were higher than in the leaf. SOD activity was highest in the leaf, stem and root activity was comparatively low. Especially, SOD activity in leaf was over 2 times higher than root.

담쟁이 덩굴 추출물로부터 항암예방제로서의 물질을 탐색코자 항산화 비효소활성 및 효소활성을 조사해 본 결과, 부위별 항산화력 및 효소활성들은 차이를 나타내었다. 부위별 에틸아세테이트 분획물은 잎에서 DPPH 소거활성이 가장 높았으며, 실리카겔 컬럼크로마토그래피에서 잎, 줄기, 뿔리에서 각각 7.06, 6.99, 12.39($\mu\textrm{g}/m\ell$)이었다. 에틸아세테이트 분획에서 활성이 가장 높은 분획을 Sephadex LH-20 column chromatography로 분리 정제한 결과 잎, 줄기 그리고 뿔리에서 각각 5.5, 6.11, 5.29 ($\mu\textrm{g}/m\ell$)의 DPPH 활성이 높은 분획을 얻었다. Sephadex LH-20에 의해 활성이 가장 높은 분획을 GC/MS로 분석한 결과, Benzoic acid(Gallic acid), 1,2,3-Benzenetriol, 4-amino-Benzenemethanol과 같은 페놀화합물의 항산화물질들이 동정되었다. 줄기와 뿌리에서 POD활서은 잎에서 보다 활성이 높았고, SOD 활성은 잎, 줄기 그리고 뿌리 순으로 높은 활성을 나타내었으며 특히, 잎은 뿌리보다 2배 이상의 높은 활성을 보였다.

Keywords

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