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- W2370991640 abstract "The extraction process of total flavonoids from Cyrtomium fortunei rhizomes was optimized and the antioxidant activities of different polarity were studied.The total flavonoids of extraction was tested by ultraviolet spectrophotometry.The optimal process was obtained by orthogonal test experiments as follows: the extracting time of 30min,the ratio of raw materials to solution of 1∶40g/mL,and the ethanol concentration of 60%.4 extracts were obtained in different fractions by different polarities of solvents such as chloroform,ethyl acetate,water saturation normal butyl alcohol and water.According to the scavenging activity for 1,1-diphenyl-2-picrylhydrazyl radicals(DPPH·) and reducing activity,antioxidant activities of different polarity fractions were investigated.The results showed that four fractions all had different antioxidant effects,and the antioxidant activity of ethyl acetate fraction is the strongest.Extracts from Cyrtomiun fortunei show relatively strong antioxidant activities and are worth utilizing further." @default.
- W2370991640 created "2016-06-24" @default.
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- W2370991640 date "2012-01-01" @default.
- W2370991640 modified "2023-09-25" @default.
- W2370991640 title "Ultrasonic Extraction of Total Flavonoids from Cyrtomium fortunei and Its Antioxidant Activities of Different Polarity" @default.
- W2370991640 hasPublicationYear "2012" @default.
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