Gelation of UHT milk is thought to be initiated by proteolysis of milk proteins by these heat resistant proteases.The properties,determination of plasmin and proteases of psychrotrophic bacteria a...

• 简要介绍了纤维蛋白溶酶、嗜冷菌耐热性蛋白酶的性质、活性测定方法,论述了这些酶引起的UHT乳的胶凝性质、形成原因及影响因素,并提出了一些防止措施。