Demineralized whey powders
AssigneeDMK Deutsches Milchkontor GmbH
InventorsSven-Rainer Döring, Thorben Oehlckers, Torben Wiegers
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Abstract
A demineralised whey powder is suggested which is obtainable by: (a) Separating raw milk, removing the cream; (b) Subjecting the skimmed milk such obtained to microfiltration or microdiafiltration, obtaining a whey protein-rich permeate P1 and a retentate R1 containing casein and GMP in the process; (c) Subjecting the permeate P1 to column chromatography separation, in which the lactoferrin contained therein remains on the column; (d) Subjecting the permeate, from which lactoferrin had been removed, to dialysis; and (e) Dehydrating the diluate such obtained.
Claims10
A process for the production of a demineralised whey powder, comprising the following steps:
- (a) separating raw milk into skimmed milk and cream;
- (b) microfiltrating or microdiafiltrating the skimmed milk with a membrane having a pore size in the range from about 0.1 to about 1 μm, obtaining a whey protein-rich permeate P1 and a retentate R1 containing casein and GMP;
- (c) subjecting the permeate P1 to column chromatography separation, in which lactoferrin contained therein remains on the column;
- (d) subjecting the permeate P1, from which lactoferrin had been removed, to nanofiltration or reverse osmosis and retaining thus-obtained retentate R2 which contains milk minerals, wherein the nanofiltration is performed with a membrane having a pore size in the range from about 150 to about 1,000 nm;
- (e) dialysing thus-obtained permeate P2 in step (d) from which lactoferrin had been removed by subjecting the permeate P2 to electrodialysis;
- (f) treating thus-obtained diluate with a cation exchanger;
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- (g) drying the diluate, obtaining a product in powder form.
Dependencies are inferred from the claim text.