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Study on Antioxidant Activity of Crude Extract from Camellia Seed Shell

XU Bao-ru

Abstract

The effective components from Camellia seed shell was extracted by ethanol solvents with different concentrations.The antioxidant activities of the crude extracts were determined using free radical system,hydrogen dioxide system and nitrite system.The results showed that the antioxidant activities of Camellia seed shell were related to the concentration of ethanol solvents,and the 60 % ethanol extracts had the best free radical-scavenging activity,when the concentrations were 15,2,4,10 g/L,the scavenging rate of 60 % ethanol extracts to·OH、DPPH·、H2O2 and the nitrite were 47.7 %,76 %,97.1 %,99.0 %,and showed the obvious dose-effect relation after a certain concentration.

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Key concepts: Chemistry, Antioxidant, Ethanol, Nitrite, DPPH, Food science, Scavenging, Camellia