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Antioxidant Activities of Catechin Derivative Compounds Isolated from Rheum undulatum L

등록일
2005년 8월 11일 10시 25분 54초
접수번호
0717
발표코드
23P50포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
토 <발표Ⅲ>
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
천현자, 김성현, 김일광
원광대학교,
Rheum undulatum L. has been widely used for traditional medicine purposes. The dried Rhizomes of Rheum undulatum L. were extracted with methanol and then fractionated with n-hexane, EtOAc and BuOH to get active fractions. And their antioxidant activities in each fraction were determined by using the DPPH and FRAP method. Ethyl acetate fraction of Rheum undulatum L. exhibited antioxidative activities. Further fractionation with ethyl acetate fraction was performed to obtain effective fractions. 3 and 4 fractions showed the strongest antioxidative activity. (-)-Epicatechin gallate was isolated from 3 fraction, and two catechin derivative compounds were isolated from 3 and 4 fractions of the ethyl acetate fraction of Rheum undulatum L. They possessed bioactive material of antioxidant agents.

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