Fig. 4From: Potential of Zymomonas mobilis as an electricity producer in ethanol productionThe correlation between glucose consumption rate and WV. Colors represent fermentation time and initial glucose were set as 20, 50, 100, 150 g/L, among which, 100 g/L plots were linked (a). The electricity generation process of RM, 6 h supernatant and 30 h supernatant (b, c). Centrifugation was implemented at the position of red arrow while the supernatants at the 6 h and 30 h of cultivation were collected from MFCs and then were loaded in new MFCs to examine their performance. Oxygen was sparged at the position of blue arrowBack to article page