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The Antioxidative Effects and Isolation and Characterization of the Extracts from Morus alba L.

뽕잎 추출물의 항산화 효과와 항산화 성분 분리 및 동정에 관한 연구

Jeon, Ye-Sook;Kim, Mi-Won
전예숙;김미원

  • Received : 2011.02.09
  • Accepted : 2011.03.28
  • Published : 2011.03.30

Abstract

This study identified the formula of the antioxidant substance separated from the ethyl acetate and the butanol extract and tested the antioxidant properties with the electron donating ability(EDA). Each phase with the fractionated methanol extract from mulberry leaf was screened in advance for the antioxidant substance with EDA. As the result, activity appeared in the ethyl acetate and butanol phase and the antioxidant component was separated. As the consequence, 2 components from the ethyl acetate phase and 1 from the butanol phase were separated, among which the structures of the components from ethyl acetate were determined by wogonin and linarin, whereas the structure of the component from the butanol phase was determined by pectolinarin. In the screening of antioxidant activity by the scavenging effect of the DPPH radical, the wogonin and linarin components from ethyl acetate phase showed more powerful antioxidant property than the component from butanol. The results from this study indicate that the chemical compound separated from the ethyl acetate extract has more powerful antioxidant property than the one separated from the butanol extract. The components separated from the ethyl acetate extract were wogonin and linarin, which are flavonoids, whereas the component from butanol was pectolinarin. Therefore, this study suggested that the feasibility of mulberry leaf as a functional food additive and its value as a natural antioxidant is very high.

Keywords

mulberry leaf;antioxidant;DPPH radical;wogonin;linarin;pectolinarin

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