Patent ID: 7148034

Claim:
A process for preparing an improved whey protein hydrolysate containing bioactive peptides comprising hydrolysing a whey protein isolate (WPI) with one or more enzymes characterized in that: i) at least one of the enzymes is a bacterial protease from Bacillus amyloliquefaciens and the enzyme to substrate ratio is between about 0.01% and about 3% w/w total solids; ii) the hydrolysis is conducted at a temperature of between about 30° C. and 65° C. and at a pH of about 3.5 to about 9.0; iii) the hydrolysis is terminated when a degree of hydrolysis of no greater than about 10% has been reached; iv) the hydrolysis is terminated by deactivating said one or more enzymes; and wherein the product of the process is water soluble.