| 摘要 |
FIELD: biotechnology, microbiology, biochemistry, amino acids. SUBSTANCE: method for preparing L-lysine involves culturing microorganism Escherichia, accumulation of L-lysine in culture and collection of indicated amino acid. For productivity enhancement method involves using microorganism Escherichia with increased activity of aspartate-semialdehyde dehydrogenase or phosphoenolpyruvate carboxylase and with increased activity of specific enzyme(s). Invention provides preparing L-lysine with the high degree of effectiveness. EFFECT: improved preparing method. 9 cl, 4 tbl, 20 dwg, 4 ex |
