Patent ID: 11937618
Assignee: MICHAEL FOODS, INC.
Field: Food chemistry (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 0:
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.