Modified protein compositions and preparation thereof
US4145455A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Mar 20, 1979 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/047
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A modified protein composition which is produced by contacting a water-soluble protein, such as plant seed proteins, cow milk protein, animal meat proteins, fish meat proteins, egg proteins and microorganisms proteins, with a cysteine-enriched plastein in an amount of at least 1% by weight on the basis of the water-soluble protein in an aqueous medium, and if desired, heating the resultant under a mild condition (e.g. at a temperature of 40.degree. to 90.degree. C.), said cysteine-enriched plastein being produced by hydrolyzing a protein with an enzyme having an endopeptidase activity and subjecting the hydrolyzate to dehydration-condensation with a protease having an esterase activity in the presence of an activated cysteine (e.g. lower alkyl cysteinate, N-acetyl-L-cysteine or L-cysteinyl-L-cysteine).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.