Objective To study anti-oxidative activity of water-soluble peptides from Xylaria nigripes(XNP) in vitro.Methods The anti-oxidative activity of water-soluble peptides from XNP were studied entirely by measuring scavenging rate of water-soluble peptides from XNP on super-oxide anion generated by pyrogallol autoxidation,hydroxyl free radical in Fenton reaction and DPPH free radical,and their reducing power and inhabiting peroxidation of liposomes ability.Results Water-soluble peptides from XNP could significa...