FIELD: biotechnology, microbiology, biochemistry.
SUBSTANCE: invention relates to a method for preparing L-amino acid using microorganism belonging to genus Escherichia or corynebacterium. Method involves culturing indicated microorganism in medium for producing and accumulation in medium and collecting the accumulated amino acid. Microorganism is created from the parent strain having respiratory chain way with high energetic yield and respiratory chain way with low energetic yield as ways of respiratory chain. This microorganism represents mutant strain or strain of genetic recombinant having one or both of the following features: respiratory chain way with high energetic yield is enhanced and respiratory chain way with low energetic yield is deficient. Method provides enhancing yield of L-amino acid.
EFFECT: improved preparing method.
8 cl, 5 tbl, 2 dwg, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING L-THREONINE USING BACTERIUM, BELONGING TO GENUS Escherichia, IN WHICH GENE yfeH IS INACTIVATED | 2006 |
|
RU2337959C2 |
| METHOD FOR PRODUCTION OF L-AMINO ACIDS BELONGING TO GENUS ESCHERICHA | 2005 |
|
RU2304615C2 |
| L-THREONINE TECHNIQUE USING BACTERIUM OF Escherichia GENUS WITH INACTIVATED yrbG GENE | 2006 |
|
RU2330881C2 |
| METHOD OF OBTAINING L-THREONINE OR L-ARGININE USING BACTERIUM, BELONGING TO GENUS Escherichia, IN WHICH GENE bisC IS INACTIVATED | 2006 |
|
RU2337958C2 |
| L-THREONINE OR L-ARGININE TECHNIQUE USING BACTERIUM OF Eschrichia GENUS WITH INACTIVATED aldH GENE | 2006 |
|
RU2330882C2 |
| METHOD OF OBTAINING L-THREONINE OR L-ARGININE USING BACTERIUM, BELONGING TO GENUS Escherichia, IN WHICH GENE fdrA IS INACTIVATED | 2006 |
|
RU2337957C2 |
| METHOD FOR PRODUCTION OF L-AMINO ACIDS BY FERMENTATION USING BACTERIA HAVING INCREASED EXPRESSION OF XYLOSE UTILIZATION GENE | 2005 |
|
RU2283346C1 |
| METHOD OF L-THREONINE RECEIVING WITH USAGE OF BACTERIA BELONGING TO GENUS Escherichia, IN WHICH INACTIVATED GENE lrhA | 2006 |
|
RU2337956C2 |
| METHOD OF PRODUCING L-threonine WITH USING BACTERIUM OF Escherichia TYPE | 2006 |
|
RU2351646C2 |
| METHOD FOR PREPARING L-THREONINE USING MICROORGANISM BELONGING TO GENUS ESCHERICHIA WHEREIN mazEF OPERON IS INACTIVATED | 2005 |
|
RU2313573C2 |
