Method for producing L-phenylalanine by fermentation
US4407952A · kind A · utility
5Cited by
6References
5Claims
0Family size
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Key dates
| Filing date | Jun 16, 1980 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Jun 16, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/849
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
L-phenylalanine is produced by fermentation by culturing in a culture medium an L-phenylalanine producing microorganism constructed by incorporating a hybrid plasmid in a recipient strain of the genus Escherichia and recovering the L-phenylalanine which accumulates in the culture medium, said hybrid plasmid containing a deoxyribonucleic acid fragment possessing genetic information related to L-phenylalanine production and obtained from a phenylalanine analogue resistant mutant of the genus Escherichia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.