Fig. 5From: Genetic engineering of Escherichia coli to improve L-phenylalanine productionFermentation results of the Xllp08 strains and its derivative strains. Xllp16, Xllp17, and Xllp18 were obtained by overexpressing aroD, ydiB and aroC in Xllp08 strains, respcetively. The black column meant OD600 and the gray column meant L-Phe titer. Experiments were conducted in triplicateBack to article page