Fig. 3
From: Anode-assisted electro-fermentation with Bacillus subtilis under oxygen-limited conditions
B. subtilis grown in BES under the moderate aeration condition with glucose as substrate and K3[Fe(CN)6] acting as a mediator. Current density and charge logged at a poised anode potential of 0.7Â V a. Optical density and pH were measured from reactors with applied potential [AP] and open circuit [OC] b, and glucose and end product concentrations were measured from AP c and OC d. Concentrations for acetate (Additional File 1: Fig. S3) are shown in Additional File 1. Results are based on average data of three biological replicates and standard deviations are represented as coloured area and error bars