Antioxidative Activity of Gynostemma pentaphyllum Makino Extracts
2007
Hyun, S.H. (Kyung Hee University, Seoul, Republic of Korea) | Lee, J.S. (Yeungnam University, Gyeongsan, Republic of Korea) | Lee, K.B. (Daegu Health College, Daegu, Republic of Korea) | Lee, J.S. (Yeungnam University, Gyeongsan, Republic of Korea), E-mail: [email protected]
This study was carried out to examine the antioxidant activity of Gynostemma pentaphyllum Makino. Using the DPPH method, we found that free radical scavenging activity was strong in all the fractions except the water fraction of the water extract (GPW) and ethanol extract (GPE) of G. pentaphyllum Makino. Pseudo-SOD activity was highest in the diethyl ether fraction of the ethanol extract, while the other fractions of the ethanol and water extracts were lower. For xanthine oxidase inhibition activity, the diethyl ether fraction and butanol fraction of GPW, and the diethyl ether fraction and butanol fraction of GPE, showed activities over 80%.
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