[Enzymatic hydrolysate of soy protein isolate. Preparation and characterization].

Soy protein isolate has been hydrolysed using one- or two-stage scheme. Two-stage scheme of soy protein isolate hydrolysis by Flavourzyme followed by Pancreatin provided 97% of the initial protein in soluble form. The structures with molecular weights over than 28 kD were eliminated, as determined by size-exclusion chromatography.