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US 12,532,895 B2Granted
Production and separation of milk fractions with electrodialysis
Assigneefairlife, LLC
InventorsShakeel Ur Rehman, Kamil Piotr Drapala
Life of this patent
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Abstract
Methods for preparing dairy compositions utilize an electrodialysis apparatus to separate a feed stream into a lactose stream and a mineral stream. The feed stream can be a UF permeate fraction, a NF retentate fraction, or a RO retentate fraction. The brine input to the electrodialysis apparatus can be a milk mineral stream.
Claims17
A method for making a dairy composition, the method comprising:
- (a) ultrafiltering a skim milk product to produce an ultrafiltration (UF) permeate fraction and a UF retentate fraction;
- (b) nanofiltering the UF permeate fraction to produce a nanofiltration (NF) retentate fraction and a NF permeate fraction;
- (c1) introducing the NF retentate fraction to a feed input of an electrodialysis apparatus;
- (c2) introducing water or a milk mineral stream to a brine input of the electrodialysis apparatus;
- (d) discharging from the electrodialysis apparatus a lactose stream and a mineral-enriched stream;
- (e) subjecting the NF permeate fraction or the mineral-enriched stream and the NF permeate fraction to reverse osmosis to produce a reverse osmosis (RO) retentate fraction and a RO permeate fraction;
- and
- (f) combining at least the UF retentate fraction and the RO retentate fraction and/or the mineral-enriched stream to form the dairy composition.
5 more elements
A method for making a dairy composition, the method comprising:
- (a) ultrafiltering a skim milk product to produce a UF permeate fraction and a UF retentate fraction;
- (b) nanofiltering the UF permeate fraction to produce a NF retentate fraction and a NF permeate fraction;
- (c1) introducing the NF retentate fraction to a feed input of an electrodialysis apparatus;
- (c2) introducing water or a milk mineral stream to a brine input of the electrodialysis apparatus;
- (d) discharging from the electrodialysis apparatus a lactose stream and a mineral-enriched stream;
- (e) subjecting the NF permeate fraction or the mineral-enriched stream and the NF permeate fraction to reverse osmosis to produce a RO retentate fraction and a RO permeate fraction;
- and
- (f) combining at least the UF retentate fraction and the RO retentate fraction and/or the mineral-enriched stream to form the dairy composition,
- wherein the water or the milk mineral stream comprises at least a portion of the RO permeate fraction, the RO retentate fraction, the NF permeate fraction, the mineral-enriched stream, or any combination thereof.
6 more elements
A method for making a dairy composition, the method comprising:
- (a) ultrafiltering a skim milk product to produce a UF permeate fraction and a UF retentate fraction;
- (b) nanofiltering the UF permeate fraction to produce a NF retentate fraction and a NF permeate fraction, wherein the NF retentate fraction contains (i) less than or equal to 0.75 wt. % protein, (ii) less than or equal to 0.75 wt. % fat, (iii) from 7 to 15 wt. % wt. % lactose, and (iv) from 0.4 to 1 wt. % minerals;
- (c1) introducing the NF retentate fraction to a feed input of an electrodialysis apparatus;
- (c2) introducing water or a milk mineral stream to a brine input of the electrodialysis apparatus;
- (d) discharging from the electrodialysis apparatus a lactose stream and a mineral-enriched stream, wherein the lactose stream contains (i) from 0.05 to 1 wt. % wt. % protein, (ii) from 7 to 15 wt. % lactose, and (iii) less than or equal to 0.5 wt. % minerals;
- (e) subjecting the NF permeate fraction or the mineral-enriched stream and the NF permeate fraction to reverse osmosis to produce a RO retentate fraction and a RO permeate fraction;
- and
- (f) combining at least the UF retentate fraction and the RO retentate fraction and/or the mineral-enriched stream to form the dairy composition.
5 more elements
Dependencies are inferred from the claim text.