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PROCESS FOR THE PREPARATION OF L-THREONINE USING STRAINS OF THE ENTEROBACTERIACEAE FAMILY WHICH CONTAIN ENHANCED SUCC AND SUCD GENES
PROCESS FOR THE PREPARATION OF L-THREONINE USING STRAINS OF THE ENTEROBACTERIACEAE FAMILY WHICH CONTAIN ENHANCED SUCC AND SUCD GENES
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机译:使用含有增强的SUCC和SUCD基因的肠杆菌科菌株制备L-苏氨酸的方法
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摘要
The invention relates to a process for the preparation of L-amino acids, in particular L-threonine, in which the following steps are carried out: a) fermentation of microorganisms of the Enterobacteriaceae family which produce the desired L-amino acid and in which at least one or more of the genes chosen from the group consisting of sucC and sucD, or nucleotide sequences which code for these, is or are enhanced, in particular over-expressed, b) concentration of the desired L-amino acid in the medium or in the cells of the bacteria, and c) isolation of the desired L-amino acid.
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