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- W2390987966 abstract "The paper studied the scavenging activity on DPPH.and hydroxyl free radical(.OH) of different solvent extracts from Kadsura longipedunculata.Besides,ethanol was as solvent to compare the coarse extraction rate and scavenging activity on free radicals of extracts from Kadsura longipedunculata by ultrasonic extraction and traditional soak.The effect of extraction time and extraction temperature on DPPH.scavenging activity of extracts from Kadsura longipedunculata fruit by ultrasonic extraction was studied.The results showed that the ethanol extract had the highest scavenging rate on DPPH.of 94.24%,while chloroform extract had the highest scavenging rate on.OH of 80.96%.The DPPH.scavenging activity of different solvent extracts was ethanol acetone chloroform petroleum ether ethyl acetate;.OH was chloroform petroleum ether ethyl acetate acetone ethanol.Compared with traditional soak,extraction efficiency by ultrasonic extraction increased by 30.16% and the scavenging activity on DPPH.and.OH increased 24.66 and 12.95 percent respectively.The ethanol extract had the highest scavenging rate on DPPH.of 97.32% under the condition of 40 min,50℃." @default.
- W2390987966 created "2016-06-24" @default.
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- W2390987966 date "2012-01-01" @default.
- W2390987966 modified "2023-09-23" @default.
- W2390987966 title "Study on DPPH.and.OH scavenging activity of extracts from Kadsura longipedunculata fruit" @default.
- W2390987966 hasPublicationYear "2012" @default.
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