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. 2019 Jan 15;9:3267. doi: 10.3389/fmicb.2018.03267

FIGURE 5.

FIGURE 5

Medium exchange experiments for examining the contribution of soluble electron carrier to the current production, and DP voltammograms before and after medium exchange in reactors with Gut-S1 (A and B) and Gut-S2 (C and D), the similar tendency was observed in more than two experiments.