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자료유형
학술저널
저자정보
Cho, Jeong-Yong (Department of Food Science & Biotechnology and Solar Salt Biotechnology Research Center, Mokpo National University) Lee, Kang-Deok (Department of Food Science & Biotechnology and Solar Salt Biotechnology Research Center, Mokpo National University) Park, Sun-Young (Department of Food Science & Biotechnology and Solar Salt Biotechnology Research Center, Mokpo National University) Jeong, Won Chul (Department of Food Science & Biotechnology and Solar Salt Biotechnology Research Center, Mokpo National University) Moon, Jae-Hak (Department of Food Science & Technology, and Functional Food Research Center, Chonnam National University) Ham, Kyung-Sik (Department of Food Science & Biotechnology and Solar Salt Biotechnology Research Center, Mokpo National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제56권 제5호
발행연도
2013.1
수록면
547 - 552 (6page)

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Ethyl acetate (EtOAc) layer obtained after the solvent fractionation of hot water extracts from nutgall tree (Rhus javanica) stem bark showed higher ${\alpha}$-glucosidase inhibition activity than other layers. A novel acetophenone glucoside (4) and six known phenolic compounds were isolated from the EtOAc layer. The structure of 4 was determined to be 3,4,5-trihydroxy-acetophenone 4-O-${\beta}$-D-glucopyranoside. The six known compounds were identified as gallic acid (1), 5-methylresorcinol (2), methylgallate (3), 3-hydroxy-5-methylphenol 1-O-${\beta}$-D-(6'-galloyl)glucopyranoside (5), scopoletin (6), and phlorizin (7). Their chemical structures were determined by electrospray ionization mass spectrometry and nuclear magnetic resonance analyses. Compound 5 was newly identified from this plant. Compounds 6 and 7 showed significantly higher ${\alpha}$-glucosidase inhibition activity than other compounds.

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