Patent ID: 9560861
Date: 2017-02-07
CPC Classifications: A23C,A23J,A23L,A23V

Claim:
1. A method of removing lipid from a protein and lipid-containing material, the method comprising: adding sufficient amount of chitosan to the protein and lipid-containing material to form a chitosan-lipid complex in solution, wherein the protein and lipid-containing material is whey; adjusting the solution to a pH of about 4.0 to 5.0; mixing the solution for a sufficient time to form a precipitate of the chitosan-lipid complex; and separating the chitosan-lipid complex from the solution using microfiltration to form a substantially lipid-free protein permeate, wherein the microfiltration is performed with a polymeric microfiltration membrane that has a pore size of from about 0.1 μm to about 1.0 μm, wherein the substantially lipid-free protein permeate comprises β-lactoglobulin.