Patent ID: 9464309
Filing Date: 2016-10-11
CPC Classification: A23J,A23K,A23V,A61K,B01D,C01B,C11B,C12P

Claim Text:
1. A method for producing peptides/amino acids with a fat content of less than 0.5% by weight from a protein-containing raw material, wherein the method comprises: (a) grinding the protein-containing raw material; (b) heating the ground raw material to temperatures in the range of 40-62° C.; (c) adding water which has approximately the same, or the same, temperature as the raw material, and wherein the pH of the water is adjusted to 7.0-8.5; (d) hydrolysing the ground raw material with endogenous enzymes in order to prepare a hydrolysate; (e) removing solid particles and non-hydrolysed proteins which can be returned to the hydrolysis from the hydrolysate; (f) periodically or continually separating off fat/oil in order to obtain an oil product; (g) separating off the desired molecular weight fraction of peptides/amino acids by membrane filtration; (h) routing the portions of the hydrolysate that do not penetrate the membrane filter in step (g) back to the hydrolysis in step (d); (i) concentrating and optionally drying the permeate in order to obtain a distillate comprising water, and a concentrate comprising peptides/amino acids and water; and (j) wholly or partly returning the distillate from the concentrating to the permeate side of the membrane filter.