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US 12,274,274 B2Granted
Production and separation of milk fractions with a final nanofiltration step
Assigneefairlife, LLC
InventorsShakeel Ur Rehman, Timothy Peter Doelman, Kamil Piotr Drapala
Life of this patent
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Abstract
Disclosed are methods for preparing dairy compositions using a final nanofiltration step. Generally, the methods also include an ultrafiltration step and a reverse osmosis step, and optionally, a diafiltration step.
Claims24
A method for making a dairy composition, the method comprising:
- (i) ultrafiltering a milk product at a temperature from about 3 to about 15° C. to produce an ultrafiltration permeate fraction and an ultrafiltration retentate fraction;
- (ii) subjecting the ultrafiltration permeate fraction to a reverse osmosis step to produce a reverse osmosis permeate fraction and a reverse osmosis retentate fraction containing at least about 8 wt. % milk sugar;
- (iii) nanofiltering the reverse osmosis retentate fraction to produce
- a nanofiltration permeate fraction containing from about 300 to about 800 ppm sodium and from about 1500 to about 3000 ppm potassium, and
- a nanofiltration retentate fraction containing at least about 10 wt. % milk sugar;
- and
- (iv) combining at least two of the ultrafiltration retentate fraction, a diafiltration/ultrafiltration retentate fraction, the nanofiltration permeate fraction, the reverse osmosis permeate fraction, the reverse osmosis retentate fraction, and a fat-rich fraction to form the dairy composition.
4 more elements
A method for making a dairy composition, the method comprising:
- (i) ultrafiltering a milk product at a temperature from about 3 to about 15° C. to produce an ultrafiltration permeate fraction and an ultrafiltration retentate fraction;
- (ii) subjecting the ultrafiltration permeate fraction to a reverse osmosis step to produce a reverse osmosis permeate fraction and a reverse osmosis retentate fraction containing from about 8 to about 18 wt. % milk sugar;
- (iii) nanofiltering the reverse osmosis retentate fraction to produce
- a nanofiltration permeate fraction containing from about 300 to about 800 ppm sodium and from about 1500 to about 3000 ppm potassium, and
- a nanofiltration retentate fraction containing from about 10 to about 28 wt. % milk sugar;
- and
- (iv) combining (a) the ultrafiltration retentate fraction and the nanofiltration permeate fraction to form the dairy composition, or (b) combining a fat-rich fraction, the ultrafiltration retentate fraction, and the nanofiltration permeate fraction to form the dairy composition.
4 more elements
Dependencies are inferred from the claim text.