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논문 기본 정보

자료유형
학술저널
저자정보
Yang, Seok-Won (College of Pharmacy, Woosuk University) Park, Sae-Rom (College of Pharmacy, Woosuk University) Ahn, Dal-Rae (College of Pharmacy, Woosuk University) Yang, Jae-Heon (College of Pharmacy, Woosuk University) Kim, Dae-Keun (College of Pharmacy, Woosuk University)
저널정보
한국응용약물학회 Biomolecules & Therapeutics(구 응용약물학회지) Biomolecules & therapeutics 제19권 제3호
발행연도
2011.1
수록면
336 - 341 (6page)

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초록· 키워드

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As part of an ongoing search for natural plants with antioxidant compounds by measuring the radical scavenging effect on 1,1-diphenyl- 2-picrylhydrazyl (DPPH), a total extract of the twigs of Galium spurium L. (Rubiaceae) was found to show potent antioxidant activity. Subsequent activity-guided fractionation of the methanolic extract led to the isolation of nine compounds, asperulosidic acid methyl ester (1), asperuloside (2), caffeic acid (3), kaempferol-3-O-L-rhamnopyranoside (4), quercetin-3-O-[${\alpha}$-Lrhamnopyranosyl($1{\rightarrow}6$)-${\beta}$-D-glucopyranoside] (5), isorhamnetin-3-O-glucopyranoside (6), quercetin-3-O-${\alpha}$-L-rhamnopyranoside (7), kaempferol-3-O-[${\alpha}$-L-rhamnopyranosyl($1{\rightarrow}6$)-${\beta}$-D-glucopyranoside] (8), and quercetin (9). Their structures were elucidated by spectroscopic studies. Compounds 1, 3-8 were isolated for the first time from this plant. Among them, compounds 3 and 9 showed the significant radical scavenging effects on DPPH, and compounds 3 and 7 showed the potent riboflavin originated superoxide quenching activities.

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