Process for extracting type I collagen form an avian source, and applications therefor
US5138030A · kind A · utility
Inventor
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/84
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for extracting type I collagen from an avian source such as poultry feet that incorporates a fibrillar mass of connective tissue as well as bony tissue to yield a collagen product having useful medical and biotechnology applications. In this process, after being cleaned and decontaminated, the poultry feet are comminuted and then enzyme-treated to enhance the yield. The enzyme-treated comminuted material which is rich in collagen is dispersed in an organic acid to cause the fibrillar mass to undergo controlled swelling, after which the mass is separated from the bony tissue and purified to remove non-collangenous material. The purified mass is dried to provide the desired Type I collagen product which may be ground into a powder or formed into a collagen matrix or sponge, depending on the end use therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.