US 12,402,642 B2
System for concentrating phospholipids
Ravin Gnanasambandam, Chaska, MN (US); and Hasmukh Patel, Plymouth, MN (US)
Assigned to Land O'Lakes, Inc., Arden Hills, MN (US)
Filed by LAND O'LAKES, INC., Arden Hills, MN (US)
Filed on Jul. 26, 2022, as Appl. No. 17/873,798.
Application 17/873,798 is a continuation of application No. 15/969,476, filed on May 2, 2018, granted, now 11,425,915.
Prior Publication US 2022/0361517 A1, Nov. 17, 2022
Int. Cl. A23C 9/14 (2006.01); A23C 1/04 (2006.01); A23C 7/00 (2025.01); A23C 9/142 (2006.01); A23C 17/00 (2025.01); A23J 7/00 (2006.01); A23L 33/115 (2016.01); B01D 61/14 (2006.01); B01D 61/18 (2006.01); A23L 2/00 (2006.01)
CPC A23C 9/1422 (2013.01) [A23C 1/04 (2013.01); A23C 9/142 (2013.01); A23C 17/00 (2013.01); A23J 7/00 (2013.01); A23L 33/115 (2016.08); B01D 61/146 (2022.08); B01D 61/147 (2013.01); B01D 61/149 (2022.08); B01D 61/18 (2013.01); A23L 2/00 (2013.01); B01D 2201/167 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A system for concentrating phospholipids, the system comprising:
a first ultrafiltration apparatus configured to subject a dairy composition comprising butter serum or buttermilk to ultrafiltration, wherein the ultrafiltration yields a first permeate and a first retentate;
a microfiltration apparatus configured to subject the first retentate to microfiltration, wherein the microfiltration yields a second permeate and a second retentate different from the first permeate and the first retentate;
a second ultrafiltration apparatus configured to subject the second retentate to ultrafiltration, wherein the ultrafiltration yields a third permeate and a third retentate different from the second permeate and the second retentate; and
a carbon dioxide injector configured to inject carbon dioxide into the system such that the first retentate and the second retentate are treated with carbon dioxide,
wherein the third retentate comprises a solution comprising at least about 30 wt % phospholipids.