US 11,937,618 B2
Method for providing a proteinaceous composition without pH adjustment
Noel G. Rudie, Chaska, MN (US); Alicia Stube, Chaska, MN (US); Daniel L. Vance, St. Peter, MN (US); and Todd D. Bohman, Waconia, MN (US)
Assigned to MICHAEL FOODS, INC., Minnetonka, MN (US)
Filed by Michael Foods, Inc., Minnetonka, MN (US)
Filed on Nov. 22, 2018, as Appl. No. 16/198,851.
Claims priority of provisional application 62/590,196, filed on Nov. 22, 2017.
Prior Publication US 2019/0357570 A1, Nov. 28, 2019
Int. Cl. A23J 1/08 (2006.01); A23B 5/035 (2006.01); A23J 1/09 (2006.01); A23J 3/04 (2006.01); A23L 15/00 (2016.01); C07K 1/34 (2006.01)
CPC A23J 1/09 (2013.01) [A23B 5/035 (2013.01); A23J 1/08 (2013.01); A23J 3/04 (2013.01); A23L 15/00 (2016.08); C07K 1/34 (2013.01); A23V 2250/5428 (2013.01); A23V 2300/34 (2013.01)] 20 Claims
 
1. A method for providing a protein isolate powder from egg albumen, said method comprising:
a) removing at least 25 percent volume (% (v/v)) of water from said egg albumen to provide an albumen concentrate, said albumen concentrate having a protein content of at least 20 percent mass (% (w/w));
b) diafiltering said albumen concentrate with purified water until the filtrate exhibits an electrical conductance of no more than 5 millisiemens (mS), said diafiltering being performed with an ultrafiltration membrane having a nominal molecular weight cutoff of 10±2.5 kilodaltons (kDa);
c) collecting retentate from said diafiltering step so as to provide a protein-rich composition that comprises, on a dry basis, less than 0.5% (w/w) lipids and that is substantially free of sugars; and
d) spray drying said protein-rich composition so as to provide said protein isolate powder,
wherein the albumen concentrate and the protein-rich composition are not pH-adjusted prior to drying to provide the protein isolate powder.