METHOD FOR PREPARING L-THREONINE USING MICROORGANISM BELONGING TO ESCHERICHIA GENUS WHEREIN hipA GENE IS INACTIVATED

摘要

FIELD: biotechnology, microbiology, amino acids. ^ SUBSTANCE: invention represents a method for preparing L-threonine. Method involves culturing a modified microorganism belonging to Escherichia genus wherein hipA gene is inactivated, and isolation of L-threonine from cultural fluid. Invention provides preparing L-threonine with the high degree of effectiveness. ^ EFFECT: improved preparing method of amino acid. ^ 3 cl, 2 tbl, 3 dwg, 13 ex