Production of l-lysine and l-lysine-containing feed additives
AssigneeEvonik Degussa GmbH
InventorsBRIGITTE BATHE, VOLKER F. WENDISCH
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Abstract
The invention relates to a process for producing L-lysine or L-lysine-containing feed additives by fermentation, which comprises a) expressing a polynucleotide coding for polypeptide having LL-diaminopimelate aminotransferase activity in a bacterium excreting L-lysine, and b) fermenting the resultant bacterium in a medium under suitable conditions and allowing the resultant L-lysine to accumulate in the fermentation broth.
Claims28
1-27. (canceled)
A process for producing L-lysine or L-lysine-containing feed additives by fermentation, comprising:
- a) expressing a polynucleotide coding for a polypeptide having LL-diaminopimelate aminotransferase activity in an L-lysine excreting bacterium;
- and
- b) fermenting the resultant bacterium in a medium under suitable conditions and allowing the resultant L-lysine excreted by the bacterium to accumulate in the fermentation broth.
An L-lysine-excreting bacterium which has been transformed by a polynucleotide coding for a polypeptide having LL-diaminopimelate aminotransferase activity and, compared with a non-transformed bacterium, exhibits increased excretion of L-lysine.
Dependencies are inferred from the claim text.