【摘要】 利用碱性蛋白酶对玉米蛋白进行水解制备玉米肽,以水解度(DH)表征其反应程度。确定了玉米肽的最佳水解条件:温度为55℃,pH值8.5,底物浓度5.0％,酶质量分数4.0％,水解时间为2.0 h。在此条件下,水解液的氮溶指数(NSI)和水解度(DH)分别为62.87％和62.40％。更多还原

【Abstract】 Corn protein was hydrolyzed by an alkaline protease to produce corn peptide. Extent of reaction was expressed in terms of degree of hydrolysis. The optimum hydrolyzing conditions have been determined: temperature is 55℃ , pH value is 8.5, substrate concentration is 5.0% , enzyme concentration is 4.0% , and hydroyzing time is 2.0 hours. In these conditions, nitrogen solubility index (NSI)and degree of hydrolysis(DH)of hydrolysate are respectively 62.87% and 62.40% .更多还原