Method for providing proteinaceous composition
AssigneeMichael Foods, Inc.
InventorsNoel G. Rudie, Alicia Stube, Daniel L. Vance, Todd D. Bohman
Life of this patent
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Abstract
A protein-rich composition can be provided from egg albumen via a process that involves diafiltering with purified water an egg albumen concentrate. Collected retentate from the diafiltration step constitutes a protein-rich composition which, on a dry basis, can include less than 1% (w/w) lipids. The composition can be spray dried to a protein isolate solid which is substantially free of sugars.
Claims20
A method for providing a protein enriched product from egg albumen, said method comprising:
- a) removing at least 25% (v/v) of the water from said egg albumen to provide an albumen concentrate, said concentrate having a protein content of at least 15% (w/w),
- b) employing an ultrafiltration membrane having a nominal molecular weight cutoff of at least 7 kDa, diafiltering said concentrate with purified water, and
- c) collecting retentate from said diafiltering step so as to provide a protein-rich composition that comprises, on a dry basis, less than 1% (w/w) lipids and that is substantially free of sugars.
A process for providing a protein isolate powder from egg albumen, said process consisting essentially of:
- a) removing at least 25% (v/v) of the water from said egg albumen to provide an albumen concentrate, said concentrate having a protein content of at least 20% (w/w),
- b) employing an ultrafiltration membrane having a nominal molecular weight cutoff of 10±2.5 kDa, diafiltering said concentrate with purified water until the filtrate exhibits an electrical conductance of no more than 5 mS,
- c) collecting retentate from said diafiltering step so as to provide a protein-rich composition that comprises, on a dry basis, less than 1% (w/w) lipids and that is substantially free of sugars,
- d) spray drying said protein-rich composition so as to provide said protein isolate powder, and
- e) optionally pasteurizing and/or instantizing said powder.
A method for providing a protein isolate powder from egg albumen, said process consisting of:
- a) removing at least 25% (v/v) of the water from said egg albumen to provide an albumen concentrate, said concentrate having a protein content of at least 20% (w/w),
- b) employing an ultrafiltration membrane having a nominal molecular weight cutoff of 10±2.5 kDa, diafiltering said concentrate with purified water until the filtrate exhibits an electrical conductance of no more than 5 mS,
- 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,
- d) spray drying said protein-rich composition so as to provide said protein isolate powder, and
- e) optionally at least one of pasteurizing and instantizing said powder.
Dependencies are inferred from the claim text.