Antioxidant activity of water extraction from Acanthopanacis senticosus

Water soluble components of Acanthopanax senticosus were extracted by hot water,extraction liquid on DPPH free radical scavenging rate as evaluation index,the effect of the extraction temperature,extraction time,solid-liquid ratio and extraction times on the antioxidant activity were studied to obtain the optimal extraction condition.Orthogonal test showed that the optimial conditions were reaction temperature of 70 ℃,extraction time of110 min,material liquid ratio of 1 ∶ 80( g / m L),twice extraction,and the removal rate was the DPPH free radical scavenging rate was 69.14%.In addition,DPPH,superoxide anion and hydroxyl radical scavenging activities of the extraction obtained under optimal extraction condition and vitamin C were analyzed. Results showed that superoxide anion radical scavenging activities of the extraction was lower than vitamin C( p < 0.05),and scavenging rate was 31.69%. However,DPPH and hydroxyl radical scavenging activities of the extraction were higher than vitamin C( p < 0.05),and hydroxyl radical scavenging rate was 76.03%.