Fig. 6

Succinate and acetate yields of E. coli T110, T110(pMtrABC, pFccA-CymA) and T110(pMtrABC, pFccA-CymA, pBTCA) fermented in the MES system. The data represent the means of three experiments and the error bars represent their standard deviations. The significance of differences was determined using Student’s t-test and presented as p-values. The asterisks indicate a significant difference between the mean values of the control and test samples (***p < 0.001; **p < 0.01; *p < 0.05). Suc, succinate; Ace, acetate; Glu, glucose