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Table 2 Fructose and electron uptake rates and production rates of C. autoethanogenum observed under the different conditions

From: Redox dependent metabolic shift in Clostridium autoethanogenum by extracellular electron supply

Condition

Uptake rate (mmol/gCDW h)

Production rate (mmol/gCDW h)

Fructose

Electrons from fructosea

Electrons from cathode

Acetate

Lactate

Ethanol

2,3-BDO

Control

−3.04 ± 0.29

−72.91 ± 6.96

5.68 ± 0.52

0.02 ± 0.01

2.49 ± 0.22

0.07 ± 0.01

BES

−2.96 ± 0.28

−71.02 ± 6.72

−0.01 ± 0.00

5.40 ± 0.07

0.02 ± 0.00

2.44 ± 0.06

0.05 ± 0.00

BES + [Co(sep)]3+

−2.96 ± 0.21

−70.98 ± 5.04

−0.19 ± 0.08

5.07 ± 0.02

0.02 ± 0.01

1.46 ± 0.14

0.04 ± 0.01

BES + [Co(AMMEsar)]3+

−3.36 ± 0.19

−80.56 ± 4.56

−0.07 ± 0.09

5.09 ± 0.32

0.03 ± 0.01

2.18 ± 0.07

0.13 ± 0.04

BES + [Co(trans-diammac)]3+

−5.25 ± 0.51

−125.92 ± 12.24

−0.23 ± 0.11

4.05 ± 0.18

1.98 ± 0.19

3.45 ± 0.33

0.68 ± 0.27

  1. a24 mol electrons per mol fructose