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. 2016 Jul 29;82(16):5026–5038. doi: 10.1128/AEM.01342-16

TABLE 3.

Comparison of electrochemical and chromatographic phenazine analyses

Strain Carbon source Day pH Eox (V)a Ered (V)a E1/2 (V) Phenazinesb (μg/ml)
PYO PCA
PA14 Glucose 3 6.8 −0.20 −0.43 −0.31 c 5.8
12 6.2 −0.14 −0.26 −0.20 15.9
2,3-BD 2 6.7 −0.17 −0.21 −0.19 2.6 2.6
9 6.7 −0.19 −0.42 −0.30 20.0 51.0
−0.10 −0.28 −0.19
−0.01 −0.17 −0.09
Ethanol 3 7.3 −0.19 −0.22 −0.20 3.9 1.0
8 6.7 −0.13 −0.21 −0.17 10.5 2.7
KRP1 Glucose 2 6.7 −0.18 −0.28 −0.23 3.6 29.0
10 6.2 −0.14 −0.28 −0.21 106.3
2,3-BD 3 6.7 −0.30 −0.39 −0.34 16.1 19.8
−0.22 −0.27 −0.25
12 6.7 −0.12 −0.37 −0.25 3.2 51.2
Ethanol 2 6.7 −0.22 −0.40 −0.31 6.1 8.1
6 6.7 −0.19 −0.38 −0.28 6.4
PAO1 Glucose 2 6.7 −0.266 −0.385 −0.325
7 6.7 −0.22 −0.36 −0.29
2,3-BD 3 7.1 −0.19 −0.41 −0.30 0.4
12 6.7 −0.15 −0.40 −0.27 4.5
0.00 −0.26 −0.13
Ethanol 3 6.7 c 0.8
8 6.7 −0.21 −0.27 −0.24 3.8
a

Eox and Ered, oxidation and reduction peak potentials, respectively, derived from the representative CVs in Fig. 4.

b

Corresponding phenazine concentration related to the representative CV in Fig. 4, not to the averaged phenazine concentrations from Fig. 3.

c

—, no phenazines were detected or a redox peak was not distinguishable.