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KMID : 0620720020080010026
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Natural Product Sciences
2002 Volume.8 No. 1 p.26 ~ p.29
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Antioxidant compounds from the stem bark of Sorbus commixta
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Na, MinKyun
An, RenBo/Lee, SangMyung/Min, ByungSun/Kim, Young Ho/Bae, Ki Hwan/Kang, Sam Sik
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Abstract
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The MeOH extract of Sorbus commixta (Rosaceae) exhibited strong DPPH radical scavenging activity, and through activity-guided fractionation two antioxidant compounds were isolated and identified as catechin-7-O-β-D-xylopyranoside (1) and cetechin-7-O-β-D-apiofuranoside (2) by physicochemical and spectrometric methods. To evaluate the antioxidant effect of these compounds, some in vitro tests, such as the DPPH radical scavenging activity test, the superoxide radical scavenging activity test and lipid peroxidation inhibitory activity test, were performed. Compounds 1 and 2 showed stronger activities than both α-tocopherol and butylated hydroxy anisole (BHA) in each assay.
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