Non-phosphorylated peptides from casein-based material
US5216123A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23J3/344
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Non-phosphorylated peptides and phosphopeptides useful as alimentary products or medicaments are produced. A hydrolyzate containing non-phosphorylated peptides and phosphopeptides is prepared by proteolytic enzyme hydrolysis of a casein-based material. The hydrolyzate is subjected to ultrafiltration with a membrane which allows peptides to pass through to produce a permeate containing the non-phosphorylated peptides and phosphopeptides. A bivalent cation-containing salt capable of aggregating the phosphopeptides is added to the permeate to produce a mixture containing phosphopeptide aggregates and non-phosphorylated peptides. The mixture is subjected to ultrafiltration with a membrane that retains the phosphopeptide aggregates and separates them from the non-phosphorylated peptides. The phosphopeptides form salts, which have dietetic uses, with macroelements such as calcium and/or magnesium and/or oligoelements such as iron and zinc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.