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. 2020 Jul 21;8(7):1092. doi: 10.3390/microorganisms8071092

Figure 2.

Figure 2

Electricity Production of S. epidermidis in MFCs. (a) A representative image of S. epidermidis ATCC 12228 plus 2% glycerol in MFC equipped with carbon felt as an anode, carbon cloth/PEM as a cathode, 1000 Ω resistance, sample port, copper wire, and a multimeter. (b) Electricity measured by voltage changes (mV) in MFC was recorded for 70 min in media containing glycerol (G), bacteria (B), bacteria plus glycerol (B/G), or 5-MF-pretreated bacteria plus glycerol (B/G/5-MF). The inset panel represented the peak voltage of each group. Data are the mean ± SD from three separate experiments. *** p < 0.001 (two-tailed t-tests).