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    • 40. 发明申请
    • Method for the Fermentative Production of L-Amino Acids With the Aid of Coryneform Bacteria Capable of Using Glycerin as the Only Carbon Source
    • 使用能够使用甘油作为唯一碳源的棒状杆菌细菌的发酵L-氨基酸的发酵方法
    • US20080293100A1
    • 2008-11-27
    • US11816539
    • 2006-09-27
    • Volker F. WendischDoris RittmannHermann SahmCaroline Kreutzer
    • Volker F. WendischDoris RittmannHermann SahmCaroline Kreutzer
    • C12P13/08C12N1/21C12P13/22
    • C12N1/20C12P13/04C12P13/08C12P13/227
    • The invention relates to a method for producing L-amino acids in which the following steps are carried out: a) the recombinant coryneform bacteria which produce the desired L-amino acid and in which at least one or several of the heterologous polynucleotides of the glycerol metabolism, selected among the group comprising glpA, glpB, glpC, glpD, glpE, glpF, glpG, glpK, glpQ, glpT, glpX, gldA, dhaK, dhaL, dhaM, dhaR, fsa, and talC, is/are expressed are cultivated in a medium containing glycerol or one or several other optional C sources in conditions in which the desired L-amino acid is enriched in the medium or the cells; and, optionally, b) the desired L-amino acid is isolated, all or fractions (>0 to 100 percent) of the components of the fermentation broth and/or biomass optionally remaining in the final product. In said method, bacteria are used in which other genes of the biosynthesis pathway of the desired L-amino acid are additionally reinforced or in which the metabolism pathways reducing the formation of the desired L-amino acid are eliminated at least in part.
    • 本发明涉及一种生产L-氨基酸的方法,其中进行以下步骤:a)产生所需L-氨基酸的重组棒状细菌,其中至少一种或几种甘油的异源多核苷酸 被表达为包括glpA,glpB,glpC,glpD,glpE,glpF,glpG,glpK,glpQ,glpG,glpX,gldA,dhaK,dhaL,dhaM,dhaR,fsa和talC的组中的代谢 在含有所需L-氨基酸在培养基或细胞中富集的条件下,在含有甘油或一种或几种其它任选的C源的培养基中; 和任选地,b)分离所需的L-氨基酸,所有或发酵液和/或生物质组分的组分(> 0至100%)任选保留在最终产物中。 在所述方法中,使用细菌,其中所需L-氨基酸的生物合成途径的其它基因被额外增强,或者至少部分地消除了减少所需L-氨基酸形成的代谢途径。