机构地区: 广东省农业科学院
出 处: 《食品科学》 2008年第12期417-421,共5页
摘 要: 以水解度(DH)和肽得率为指标,分别考察温度、pH值、底物浓度、加酶量对碱性蛋白酶酶解雄蚕蛾蛋白制备功能性多肽的影响,通过二次回归正交旋转组合设计确定碱性蛋白酶酶解反应的最佳优化参数为:温度64.5℃、pH9.36、底物浓度4.46%、加酶量6660U/ml、反应时间300min。在此条件下,酶解液水解度达到21.65%、肽得率达到34.81%。 Taking hydrolysis degree and peptide yield as an indexes, the effect of temperature, pH, substrate concentration, alkaline amount on enzymolysis of male silkworm moth protein were studied. The optimal conditions are determined by orthogonal rotation combination design as follows: 64.5 ℃, pH 9.36, substrate concentration 4.46%, protease amount 6660 U/ml ; and reaction time 300 min. Under these conditions, the hydrolysis degree is up to 21.65% and the peptide yield is up to 34.81%.
关 键 词: 雄蚕蛾 功能性多肽 碱性蛋白酶 二次回归正交旋转组合设计