LUCEY, JOHN A,JARTO, ISWANDI,SMITH, KAREN E,DAMODARAN, SRINIVASAN
申请号：
NZ59027209
公开号：
NZ590272A
申请日:
2009.06.30
申请国别(地区):
NZ
年份:
2012
代理人:
摘要：
Disclosed is a method of removing lipid from a protein and lipid-containing material, including steps of adding a sufficient amount of chitosan to the protein and lipid-containing material to form a chitosan-lipid complex in solution 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 membrane. Further disclosed is a process for preparing from whey a composition, comprising: adding a sufficient amount of chitosan to the whey to form a chitosan lipid complex in solution 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 microfiltering the solution to separate the chitosan-lipid complex from the solution to form a substantially lipid-free whey protein permeate, wherein the microfiltering is performed with a polymeric membrane. Further disclosed is a whey protein concentrate composition comprising about 34-89 wt% protein, less than about 1 wt% fat, and whose light absorption of a 5% aqueous solution measured at 500 nm is less than 0.06 relative absorbance units, wherein the whey protein concentrate composition is a substantially lipid-free whey protein permeate.
