Method of producing L-cysteine and L-cystine
US4006057A · kind A · utility
5Cited by
0References
17Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 4, 1975 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Nov 4, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/881
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for producing L-cysteine and/or L-cystine which comprises: A. holding 2-amino-thiazoline-4-carboxylic acid in an aqueous solution at a pH of 5 to 11 in the presence of an effective amount of enzyme produced by a microorganism; said enzyme being capable of converting the 2-amino-thiazoline-4-carboxylic acid to L-cysteine and/or L-cystine, and said microorganism being capable of growing in a medium containing 2-amino-thiazoline-4-carboxylic acid as a nitrogen source; and B. recovering the L-cysteine and/or L-cystine formed from said aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.