Patent ID: 6022702
Filing Date: 2000-02-08
Classification: A23G,A23J,A23L

Abstract:
A process for producing a soy protein hydrolysate with a low content of glycinin comprising:obtaining from low-denatured de-fatted soy flakes, having a nitrogen solubility index (NSI) of 60 or more, a soybean protein isolate comprising glycinin and .beta.-conglycinin without thermal denaturization;contacting an aqueous suspension of the isolate with pepsin at a concentration of about 0.001% to about 0.5% by weight of the isolate in the suspension at a pH in the range from about 1.0 to about 2.8 and at a temperature in the range from about 20.degree. C. to about 50.degree. C. to obtain a soy protein hydrolysate; andneutralizing the hydrolysate,whereby the degree of decomposition of glycinin is 60% or more and that of .beta.-conglycinin is 40% or less.