PRODUCTION OF L-ISOLEUCINE
申请公布号:JPS63112991(A)
申请号:JP19870107965
申请日期:1987.05.02
申请公布日期:1988.05.18
发明人:TERASAWA MASATO;NARA SHOICHI;KOHAMA KEIKO;FUKUSHIMA MAKIKO;YUGAWA HIDEAKI
分类号:C12N9/90;C12P1/00;C12P13/06;C12R1/13
主分类号:C12N9/90
摘要:PURPOSE:To produce L-isoleucine in a reaction solution in high yield, by carrying out enzyme reaction in the presence of a cell of a biotin-demanding bacterium belonging to the genus Brevibacterium in an aqueous solution containing an alpha-aminobutyric acid and a carbon source but not biotin. CONSTITUTION:Enzyme reaction is carried out in the presence of a cell of a biotin-demanding bacterium such as Brevibacterium flavum MJ-233 (FERM P-3068) Brevibacterium flavum MJ-233-AB-41 (FERM P-3812), etc., belonging to the genus Brevibacterium or an immobilized substance thereof in an aqueous solution, a complete synthetic medium containing an alpha-aminobutyric acid and a carbon source but not biotin. In the reaction, the concentration of dissolved oxygen in the aqueous solution is >=0.05ppm and <=8ppm and L-isoleucine formed in the reaction solution is separated and purified by ion exchange resin treatment, etc.
ELEMENTO DE SOPORTE PARA SUPERFICIES PARA SENTARSE O TUMBARSE.
SIMULADOR ELECTRO.OPTICO DE CAMPO DE BATALLA EXTERIOR BASADO EN UN TRATAMIENTO DE IMAGENES.
PPROCEDIMIENTO Y DISPOSITIVO DE FORMACION DE UNA CINTA DE CAPAS MULTIPLES.
PROCEDIMIENTO Y DISPOSITIVO PARA LA VISUALIZACION DE PROCESOS.
SISTEMA CELULAR DE LOCALIZACION POR RADIO.
INSTALACION DE REGULACION PARA QUEMADORES DE GAS.
COMPOSICIONES ESTABILIZADAS QUE POSEEN ACTIVIDAD ANTIBACTERIANA.
TRATAMIENTO DE LATENCIA PARA DISPOSITIVOS INTERCONECTADOS.
AGENTES PARA LA LIMPIEZA DE LOS DIENTES.
DERIVADOS DE AMINOMETIL FENIL CICLOHEXANONA.
UN PERFIL AERODINAMICO PARA UNA TURBOMAQUINA DE FLUJO AXIAL.
TOBERA DE ESCAPE AXISIMETRICA, CONVERGENTE-DIVERGENTE, CON ORIENTACION MEDIANTE ANILLO-GUIA.