Process for the fermentative preparation of l-amino acids...

Details Process for the fermentative preparation of l-amino acids... Process for the fermentative preparation of l-amino acids...

C - Chemistry, Metallurgy

12

P

C12P 13/08 (2006.01) C12N 9/10 (2006.01) C12N 15/77 (2006.01) C12P 13/06 (2006.01)

Patent

CA 2374012

The invention relates to a process for the preparation of L-amino acids by fermentation of coryneform bacteria, which comprises carrying out the following steps: a) fermentation of the desired L-amino acid-producing bacteria in which at least the tkt gene is amplified, b) concentration of the L-amino acid in the medium or in the cells of the bacteria and c) isolation of the L-amino acid produced, and vectors which carry the tkt gene.

La présente invention concerne un procédé d'obtention d'acides L-aminés par fermentation d'une bactérie corynéforme. Ce procédé comporte plusieurs opérations: a) fermentation de la bactérie productrice de l'acide L-aminé considéré dans laquelle le gène tkt a été amplifié, b) concentration de l'acide L-aminé dans le milieu ou dans les cellules de la bactérie, et c) isolement de l'acide L-aminé produit. L'invention concerne également des vecteurs portant le gène tkt.

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