Process of preparing pepsin for bating hides
US5340737A · kind A · utility
1Cited by
15References
4Claims
0Family size
Inventors
Key dates
| Filing date | Jun 10, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jun 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/814
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The preparation of a pepsin extract from the stomach of pigs, sheep or cattle, which is suitable for the bating of hides, is presented. The process involves macerating the stomach mucous, sedimenting the material, reserving the middle layer for pharmaceutical preparation, combining the other two layers, drying them and adding salt for preservation. The resulting pepsin containing material is particularly suitable for acid enzymic bating of chrome tan hides after the pickle process with the main purpose of obtaining a higher surface yield and a softer leather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.