To compare amino acid difference between black and white sesames,40 samples of each sesames were collected from the main producing areas in China. Under optimized experimental conditions,amino acid compositions of both sesame samples were analyzed by hydrochloric acid hydrolysis and automatic amino acid analyzer.Results indicated that both samples contained 17 essential amino acids. Arginine and glutamic acids were dominant in both seseames. In black seseame,arginine and glutamic acids contents were 2. 82% ...