The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Screening of Antioxidative Compounds toward Human Low Density Lipoprotein (LDL) from Useful Plants

유용식물로부터 Human Low Density Lipoprotein(LDL)에 대한 항산화제의 탐색

  • 임복규 (경성대학교 식품공학과) ;
  • 류병호 (경성대학교 식품공학과)
  • Published : 2004.06.01
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Abstract

This study was designed to investigate antioxidative activity of substances isolated from 25 kinds of useful plants resources toward free radical and human low density lipoprotein(LDL). Methanol extracts of Oenothers odorate had the highest antioxidative activity similar with ${\alpha}$-tocopherol. Methanol extracts of Oenothers odorate was extracted again by the ethylacetate. The ethylacetate soluble acidic fraction obtained from methanol extract of Oenothers odorate showed highest activity toward human LDL. Each fraction was purified through Sepadex LH-20 chromatography by elution of chloroform-methanol mixture (90:10 v/v). Fraction, F-2 obtained from Oenothers odorate showed at highest levels of electron donating activity. Fraction, F-2 was identified as 3,4-dihydroxybenzoic acid and 3-hydroxycinnamic acid.

본 연구는 유용식물로부터 DPPH free radical scavenger및 사람의 low density lipoprotein(LDL)의 산화에 대한 항산화 효과를 조사하기 위하여 25종의 식물로부터 메탄올로 추출하여 조사하였다. 각종 유용식물 중 항산화 활성은 우수한 달맞이꽃이 가장 높았으며 다시 메타놀로 추출하여 조사한 결과 $\alpha$-tocopherol과 항산화능이 거의 비슷하였다. 메타놀 추출물을 ethylacetate로 추출한 획분이 항산화 활성이 높았으며 ethylacetate 층 중 acidic soluble 획분을 다시 분리한 후 Sepadex LH-20 column chromatography로 추출한 결과 Fraction F-2가 전자공유능이 가장 높았다. 따라서 항산화 활성이 높은Fraction, F-2의 구조를 동정한 결과 3,4-dihydroxybenzoic acid와 3-hyoxycinnamic acid로 확인되었다.

Keywords

References

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