Plasmin Activity in UHT Milk: Relationship between Proteolysis, Age Gelation, and Bitterness
Plasmin, the major indigenous protease in milk, is linked to quality defects in dairy products. The specificity of plasmin on caseins has previously been studied using purified caseins and in the indigenous peptide profile of milk. We investigated the specificity and proteolytic pathway of plasmin in directly heated UHT milk (>150 degrees C for <0.2 s) during 14 weeks of storage at 20 degrees C in
