Figure 4 Itaconic acid and citric acid production during fermentation of the different strains. A) sCAD4 strain, B) cadA + mfsA 2.5,
C) cadA + mttA 1.4 and D) cadA + mttA + mfsA 4. The black lines represent citric acid concentration and the blue line represents the
itaconic acid concentration. The time is shown in hours (x-axis) and the concentrations are shown in mM (y-axis).