Fig. 3
From: Redox dependent metabolic shift in Clostridium autoethanogenum by extracellular electron supply
Current profiles of Clostridium autoethanogenum fermentations on fructose in the bio-electrochemical system in the absence (control) and in the presence of the three mediators [Co(sep)]3+, [Co(AMMEsar)]3+ and [Co(trans-diammac)]3+. Concentration of the mediators was 1 mmol/L and a constant potential of −0.603 V (vs SHE) was applied on the working electrode. Negative time points correspond to the phase of abiotic mediator reduction prior to inoculation