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KMID : 0043320160390091232
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Archives of Pharmacal Research
2016 Volume.39 No. 9 p.1232 ~ p.1236
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Flavonol glycosides from the aerial parts of Gynostemma pentaphyllum and their antioxidant activity
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Jang Ha-Ri
Lee Jin-Woo
Lee Chul
Jin Qinghao
Lee Myung-Koo
Lee Chong-Kil
Lee Mi-Kyeong
Hwang Bang-Yeon
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Abstract
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The phytochemical investigation of the aerial parts of Gynostemma pentaphyllum led to the isolation of a new flavonol glycoside, gynopentaphylloside (1), along with seven known compounds (2?8). The structure of the new compound was determined on the basis of 1D, 2D NMR and HRESIMS data as well as acid hydrolysis. The antioxidant activity of the isolates was evaluated by a 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay.
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KEYWORD
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Gynostemma pentaphyllum, Cucurbitaceae, Flavonol glycoside, Antioxidant activity
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