Study on the in Vitro Antioxidant Activity of the Ethanol Extracts from Abri Herba

OBJECTIVE To study in vitro antioxidant activity of the ethanol extracts from Abri Herba, and provide the theory to make use of Abri Herba. METHODS Abri Herba was soaked for 24 h with 65% ethanol as solvent and under the condition of pH=3, the abilities of the ethanol extracts of clearing ·O^2-, ·OH, and DPPH were assayed by spectrophotometry. The ability of reducing Fe³⁺ was detected with Prussia methodand, and chelating Fe2+ was detected comparison to BHA. RESULTS The ethanol extracts of Abri Herba could effectively clear ·O^2-, ·OH and DPPH, and reduce Fe³⁺, chelate Fe²⁺. CONCLUTION The ethanol extracts of Abri Herba antioxidation is strong, and its antioxidant activity was enhanced with the increase of concentration.