Method for microfiltration of milk or colostral whey
AssigneeGalaGen Inc.
InventorAntone G. Gregory
Life of this patent
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Abstract
Ultrafiltration of whey containing products at an acid pH reduces calcium levels in the concentrate and provides a concentrate that can be consistently microfiltered. The concentrate can be used, for example, in a method of microfiltering milk, milk serum, colostrum, or colostral serum which provides effective bioburden reduction without substantial loss of immunoglobulins.
Claims23
A method of preparing a whey produce to be microfiltered, said whey product obtained after removal of fat and casein from milk, milk serum, colostrum or colostral serum comprising adjusting the pH of the whey product to about 4.5 to 5.0 and ultrafiltering the whey product to obtain a whey-containing ultrafilter concentrate, wherein the ultrafilter concentrate can be consistently microfiltered without fouling of a microfilter membrane or depth filter.
A method of preparing a whey product fortified with immunoglobulins comprising the steps of:
- (a) Collecting milk or milk serum from a mammal;
- (b) Centrifuging the milk or milk serum to remove fat;
- (c) Acidifying the remaining defatted milk or milk serum to precipitate casein followed by removal of the casein to give whey;
- (d) Adjusting the pH of the whey, if necessary, to about 4.5 to 5.0;
- (e) Ultrafiltering the whey, providing a whey protein concentrate;
- and
- (f) microfiltering the concentrate.
Dependencies are inferred from the claim text.