Removing lipids from cheese whey using chitosan
OwnerSrinivasan Damodaraninventor
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Abstract
The invention is directed to precipitating whey lipids from a source material such as whey by adding a sufficient amount of chitosan to form a chitosan-lipid complex, and subsequently precipitating out the lipid from the resulting whey supernatant. The precipitate is removed either by filtration or centrifugation. The supernatant contains all the whey proteins which may then be recovered by conventional means such as ultrafiltration and spray drying. The lipids from the chitosan-lipid complex are then extracted
Claims46
A process for removing lipids from a source material comprising:
- a. adding a sufficient amount of chitosan to the source material to form a chitosan-lipid complex in solution;
- b. adjusting the solution to a pH of about 4.0 to 5.0.
- c. mixing the solution for a sufficient time to form a precipitate of the chitosan-lipid complex;
- and
- d. separating the chitosan-lipid complex from the solution to form a substantially lipid-free protein retentate.
A process for removing lipids from whey comprising:
- a. adding a sufficient amount of chitosan to the whey to form a chitosan-lipid complex in solution;
- b. adjusting the solution to a pH of about 4.0 to 5.0.
- c. mixing the solution for a sufficient time to form a precipitate of the chitosan-lipid complex;
- and
- d. separating the chitosan-lipid complex from the solution to form a substantially lipid-free whey protein retentate.
A process for purifying a whey protein concentrate from whey comprising:
- a. adding a sufficient amount of chitosan to the whey to form a chitosan-lipid complex in solution;
- b. adjusting the solution to a pH of about 4.0 to 5.0;
- c. mixing the solution for a sufficient time to form a precipitate of the chitosan-lipid complex;
- d. separating the chitosan-lipid complex from the solution to form a substantially lipid-free whey protein retentate;
- and
- e. concentrating the whey protein retentate to produce a whey protein concentrate.
A process for obtaining a lipid concentrate from whey comprising:
- a. adding a sufficient amount of chitosan to the whey to form a chitosan-lipid complex in solution;
- b. adjusting the solution to a pH of about 4.0 to 5.0;
- c. forming a precipitate of the chitosan-lipid complex;
- d. separating the chitosan-lipid complex from the solution;
- and
- e. extracting the lipid from the chitosan-lipid complex.
Dependencies are inferred from the claim text.