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- W2355182812 abstract "Four subfractions of different polarities of the 95% ethanol extract from Erythina Variegata Linn. were obtained. They were dichloromethane extract group,ethyl acetate extract group (EVE),n-butanol extract group and aqueous extract group. The four extract groups were all assayed by two methods,1,1-diphenyl-2-picryl-2picylhydrazyl (DPPH)radical.scavenging,and·ferric reducing/antioxidant power(FRAP) assay. Ascorbic acid (VC) was used as positive control. The results showed that four subfractions of different polarities of the extract all had moderate antioxidant activity and the EVE obtained the highest antioxidant activity. Therefore,we carried out a further isolation of the EVE and got ten extract groups (EVE A-J). All of the extract groups were also evaluated by DPPH· Scavenging Activity and FRAP assay. The EVE-B group had the strongest antioxidant activity. The DPPH radical scavenging activity of EVE-B was higher(IC50=8.42μg ·L-1) than that of VC(IC50=9.51μg ·L-1). The total antioxidant activity is much higher than that of VC." @default.
- W2355182812 created "2016-06-24" @default.
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- W2355182812 date "2010-01-01" @default.
- W2355182812 modified "2023-09-25" @default.
- W2355182812 title "Studies on the Isolation and the Activity's Evaluation of Anti-oxidation Chemical Composition's in Erythina Variegata" @default.
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