Antioxidant activity of fermentation broth extracts of Verticicladium trifidum from Fortunearia sinensis

The antioxidant capacity of an endophytic Verticicladium trifidum No.48 isolated from Fortunearia sinensis was studied.The reducing power (total antioxidant capacity) and radical scavenging abilities of its fermentation broth extracts were compared with rutin.The results showed that the extracts of the isolate had stronger antioxidant activity with good stability than rutin.According to the evaluation by O-2·, ·OH, DPPH· scavenging in present study, O-2· and DPPH· scavenging activities of the extracts reached 84.25% and 84.27% at the concentration of 1.0mg/mL, respectively.On the other hand, the scavenging rate against ·OH was 74.12% at the concentration of 1.0mg/mL.