Method for producing L-tryptophan by fermentation
US4588687A · kind A · utility
2Cited by
4References
2Claims
0Family size
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Key dates
| Filing date | Nov 24, 1982 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Nov 24, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/839
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for producing L-tryptophan by fermentation in high yields employing a microorganism of the genus Bacillus, which has been constructed by a gene splicing technique by incorporating a recombinant plasmid DNA containing an inserted DNA containing fragment controlling resistance to tryptophan-antagonists into a recipient strain of the genus Bacillus. The incorporated DNA fragment is a mutant of the genus Bacillus which was obtained from resistant to tryptophan-antagonists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.