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- W2372182238 abstract "The objective:A study about the oxidation resistance function of black tea.Methods:The ethanol extract of black tea was studied by ultrasonic extraction method,and the reducing capacity,scavenging action to hydroxyl free radical(·OH) and DPPH free radical(-DPPH) of black Tea extracting solution were studied by spectrophotometric method.Results:The results showed the reducing capacity,scavenging effects of were elevated with the increasing concentration of ethanol extracts.When the volume of black tea extract was 0.2 mL,the elimination rate of the production to-OH could reach to the highest value of51.70%.When the volume of black tea extract was 0.16 mL,the elimination rate of the production to-DPPH could reach to the highest value of 87.44%.The reducing capacity of black tea extract tends to be positively relevant in a certain range of A=0.040 3+2.0074 V(R=0.999 6).Conclusion:The oxidation resistance of black tea ethanol extract is good." @default.
- W2372182238 created "2016-06-24" @default.
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- W2372182238 date "2014-01-01" @default.
- W2372182238 modified "2023-09-23" @default.
- W2372182238 title "Study of Antioxidant Activity for the Ethanol Extract from Black Tea" @default.
- W2372182238 hasPublicationYear "2014" @default.
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