Toona sinensis Roem leaf extracts improve antioxidant activity in the liver of rats under oxidative stress

► Toona sinensis leave extracts (TSLs) ameliorate antioxidant enzymes activity. ► TSL6 exhibited the best antioxidative effects in rats under oxidative stress. ► TSL6 increased catalase, Cu/Zn SOD, GPx, GR, and GST enzymes activities in liver. ► TSL extracts is beneficial for the hepatic detoxification.