The antioxidant activities of 30 kinds of cysteine derivatives, methionine esters and dithiocarbamates were determined in sodium linolenate-aqueous solution system.
Among cysteine derivatives, methyl and ethyl esters of cysteine showed better effect than cysteine itself.
Methyl, ethyl, iso-propyl and n-butyl esters of methionine gave better TBA values and POV than those of methionine itself.
Among dithiocarbamates, di-iso-propyl and di-iso-butyl di thiocarbamates showed better antioxidant effect than sulfur containing amino acids.