Formation of whey protein aggregates by partial hydrolysis and reduced thermal treatment

Thermal treatment to form functional, soluble whey protein aggregates often generates undesired off-flavours. The aim of the present study was to generate soluble aggregates of whey protein isolates (WPI) at lower temperature than traditionally used by introducing partial hydrolysis of WPI prior to thermal treatment. WPI was partially hydrolyzed either by Bacillus licheniformis protease (BLP) or by a trypsin type protease (TP) at pH 7.0 and 65...