US 12,274,274 B2
Production and separation of milk fractions with a final nanofiltration step
Shakeel Ur Rehman, Chicago, IL (US); Timothy Peter Doelman, Chicago, IL (US); and Kamil Piotr Drapala, Chicago, IL (US)
Assigned to fairlife, LLC, Chicago, IL (US)
Appl. No. 17/787,684
Filed by fairlife, LLC, Chicago, IL (US)
PCT Filed Dec. 15, 2020, PCT No. PCT/US2020/065136
§ 371(c)(1), (2) Date Jun. 21, 2022,
PCT Pub. No. WO2021/133594, PCT Pub. Date Jul. 1, 2021.
Claims priority of provisional application 62/952,526, filed on Dec. 23, 2019.
Prior Publication US 2023/0016527 A1, Jan. 19, 2023
Int. Cl. A23C 9/142 (2006.01); A23C 9/13 (2006.01); A23C 9/15 (2006.01)
CPC A23C 9/1422 (2013.01) [A23C 9/1307 (2013.01); A23C 9/1427 (2013.01); A23C 9/1512 (2013.01)] 24 Claims
OG exemplary drawing
 
1. 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.