Comparison of protective effects of three varieties of sugarcane leaves on oxidative stress in Clone 9 cells

► WESL and their bioactive compounds protected Clone 9 cells death induced by t-BHP. ► WESL showed positive regulated GSH levels and antioxidant enzymes. ► WESL showed inhibitory effects on ROS generation induced by t-BHP. ► 28NG256 showed the most protective effects on oxidative stress among three varieties.