Low-bacteria milk powders with a high whey protein nitrogen index (IV)
AssigneeDMK Deutsches Milchkontor GmbH
InventorTorben Wiegers
Life of this patent
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Abstract
A low-bacteria milk powder with a WPNI of at least 2 is suggested, obtainable by (a) providing a milk component; (b) optionally, separating the cream from the milk component; (c) subjecting the milk component from which the cream had been optionally separated to microfiltration, obtaining a low-bacteria permeate P1 and a bacteria-contaminated retentate R1; (d) mixing the permeate with a liquid lipid phase and a solid active agent phase; (e) optionally, subjecting the mixture obtained in step (d) to a temperature treatment; and (f) processing the mixture of step (d) or (e) that had optionally been temperature-treated, obtaining a dry powder.
Claims13
A process for the production of a low-bacteria milk powder with a whey protein nitrogen index of at least 2, consisting of the following steps:
- (a) providing whole milk;
- (b) separating cream from the whole milk to obtain skimmed milk and pasteurizing the skimmed milk to obtain pasteurized skimmed milk;
- (c) dissolving solid active agents containing proteins and water soluble active agents in water or in skimmed milk to provide a liquid phase;
- (d) subjecting the pasteurized skimmed milk of step (b) to microfiltration together with the liquid phase of step (c) to obtain a low-bacteria permeate P1 and a bacteria-contaminated retentate R1;
- wherein the microfiltration is performed with a ceramic membrane having a pore size in the range of from 1.3 to 1.4 μm;
- (e) mixing the low-bacteria permeate P1 with a liquid lipid mixture containing lipids, vitamins and fat-soluble active agents to obtain a mixture;
- (f) concentrating the mixture of step (e) to obtain a concentrated mixture;
- and
- (g) drying the concentrated mixture of step (f), without prior thermal treatment, to obtain the low-bacteria milk powder.
Dependencies are inferred from the claim text.