METHOD AND MICROORGANISM FOR METHIONINE PRODUCTION BY FERMENTATION WITH IMPROVED METHIONINE EFFLUX

The present invention is related to a recombinant microorganism optimised for the fermentative production of methionine and/or its derivatives, wherein in said recombinant strain, the methionine efflux is enhanced by overexpressing the homologous genes of ygaZ and ygaH genes from Escherichia coli. I...

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Bibliographische Detailangaben
Hauptverfasser:	VASSEUR, PERRINE, FIGGE, RAINER, DISCHERT, WANDA, DUMON-SEIGNOVERT, LAURENCE
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The present invention is related to a recombinant microorganism optimised for the fermentative production of methionine and/or its derivatives, wherein in said recombinant strain, the methionine efflux is enhanced by overexpressing the homologous genes of ygaZ and ygaH genes from Escherichia coli. It is also related to a method for optimising the fermentative production of methionine or its derivatives comprising the steps of: a. culturing a recombinant microorganism wherein in said microorganism, the methionine efflux is enhanced by overexpressing the ygaZH homologous genes of ygaZ and ygaH genes from Escherichia coli, in an appropriate culture medium comprising a fermentable source of carbon and a source of sulphur, and b. recovering methionine and/or its derivatives from the culture medium. (No suitable figure)