Fig. 4From: Effect of adaptive laboratory evolution of engineered Escherichia coli in acetate on the biosynthesis of succinic acid from glucose in two-stage cultivationEffect of adaptive laboratory evolution on substrate inhibition during two-stage fermentation. (A): anaerobic fermentation in 20Â g/L glucose with a cell concentration of 10 OD600; (B): anaerobic fermentation in 40Â g/L glucose with a cell concentration of 10 OD600; (C): anaerobic fermentation in 60Â g/L glucose with a cell concentration of 20 OD600; (D): anaerobic fermentation in 80Â g/L glucose with a cell concentration of 20 OD600Back to article page