HYDROLYSATS DE PROTEINES BLANCHES DE LUZERNE

摘要

Producing a white protein hydrolysate from lucerne comprising hydrolysing the extract using Subtilisin carlsberg (E.C. 3.4.21.62), is new. Producing a white protein hydrolysate from lucerne comprises hydrolysing by means of Subtilisin carlsberg (E.C. 3.4.21.62) a solution of white lucerne proteins made from hydrosoluble proteins for a period of eight hours at a temperature of 20 to 60 [deg]C and a pH of 8 - 10 in an enzymatic membrane reactor. The hydrolysis is coupled with continuous ultrafiltration of the reaction solution by a membrane with a cut-off threshold of between 5 and 20 kDa. The permeate left from the ultrafiltration has its colour removed by eliminating vegetable polyphenols contained in it, leaving a hydrolysate solution of white lucerne proteins that can be desalinated and dried to yield a powder containing polypeptides and oligopeptides with a molecular weight below 5000 Da.