Global Patent Index - EP 1456391 A1

EP 1456391 A1 20040915 - PROCESS FOR THE PREPARATION OF L-AMINO ACIDS USING CORYNEFORM BACTERIA

Title (en)

PROCESS FOR THE PREPARATION OF L-AMINO ACIDS USING CORYNEFORM BACTERIA

Title (de)

VERFAHREN ZUR HERSTELLUNG VON L-AMINOSÄUREN UNTER VERWENDUNG VON CORYNEFORMEN BAKTERIEN

Title (fr)

PROCEDE DE PREPARATION D'ACIDES AMINES L FAISANT APPEL AUX BACTERIES CORYNEFORMES

Publication

EP 1456391 A1 20040915 (EN)

Application

EP 02779484 A 20021015

Priority

  • DE 10162650 A 20011220
  • EP 0211488 W 20021015

Abstract (en)

[origin: WO03054206A1] The invention relates to a process for the preparation of L-amino acids, in which the following steps are carried out: a) fermentation of the coryneform bacteria which produce the desired L-amino acid and in which at least the gene which codes for the C4-dicarboxylate transport protein is attenuated, b) concentration of the desired L-amino acid in the medium or in the cells of the bacteria, and c) isolation of the L-amino acid, and optionally bacteria in which further genes of the biosynthesis pathway of the desired L-amino acid are additionally enhanced are employed, or bacteria in which the metabolic pathways which reduce the formation of the desired L-amino acid are at least partly eliminated are employed.

IPC 1-7

C12P 13/04; C12N 1/21; C12N 15/31; C12P 13/08

IPC 8 full level

C12N 1/21 (2006.01); C12N 15/31 (2006.01); C12P 13/08 (2006.01)

CPC (source: EP)

C12P 13/08 (2013.01); C12R 1/15 (2013.01)

Citation (search report)

See references of WO 03054206A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 03054206 A1 20030703; AU 2002342824 A1 20030709; DE 10162650 A1 20030703; EP 1456391 A1 20040915

DOCDB simple family (application)

EP 0211488 W 20021015; AU 2002342824 A 20021015; DE 10162650 A 20011220; EP 02779484 A 20021015