METHOD FOR PRODUCING L-AMINO ACID BY FERMENTATION

L-threonine or L-isoleucine is produced by culturing a bacterium which belongs to the genus Escherichia and has an ability to produce L-threonine or L-isoleucine, and has a threonine operon of which expression is directed by its native promoter and from which at least a leader sequence and an attenu...

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Bibliographische Detailangaben
1. Verfasser:	ITOU, HISAO
Format:	Patent
Sprache:	eng ; spa
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 PROCESSES USING MICROORGANISMS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	L-threonine or L-isoleucine is produced by culturing a bacterium which belongs to the genus Escherichia and has an ability to produce L-threonine or L-isoleucine, and has a threonine operon of which expression is directed by its native promoter and from which at least a leader sequence and an attenuator are removed so that the attenuation is released, in a medium and collecting the L-threonine or L-isoleucine from the medium. L-treonina o L-isoleucina se produce mediante el cultivo de una bacteria que pertenece al genero Escherichia y que tiene una capacidad para producir L-treonina o L-isoleucina, y que tiene un operon de treonina cuya expresion se dirige por su promotor nativo y a partir del cual se remueven al menos una secuencia lider y un atenuador de manera que se libera la atenuacion, en un medio y recolectar la L-treonina o L-isoleucina a partir del medio.