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Bioresources and Bioprocessing

Table 2 The consumed carbon monoxide ratios during fermentation process by C. carboxidivorans P7 using different culture strategies

From: Effect of temperature and surfactant on biomass growth and higher-alcohol production during syngas fermentation by Clostridium carboxidivorans P7

Growth conditions

Consumed CO ratioa,b (%)

0–24 h

24–48 h

48–72 h

72–96 h

96–120 h

Control-37 °C

54.87 ± 6.43

90.18 ± 1.51

11.96 ± 4.44

NDc

NDc

Control-37–25 °C

49.85 ± 2.64

73.61 ± 16.03

68.88 ± 10.87

86.89 ± 0.77

44.88 ± 19.33

Tween 80-37 °C

47.06 ± 5.93

88.06 ± 4.83

73.30 ± 11.42

39.06 ± 19.00

6.99 ± 9.88

Tween 80-37–25 °C

50.55 ± 3.18

73.30 ± 7.47

53.89 ± 15.37

79.59 ± 5.82

32.85 ± 4.94

Saponin-37 °C

26.87 ± 2.86

85.26 ± 1.76

85.03 ± 1.43

13.82 ± 0.00

NDc

Saponin-37–25 °C

28.16 ± 4.22

72.16 ± 18.95

77.70 ± 6.40

85.37 ± 3.23

15.79 ± 27.35

  1. aMean values and standard errors of three replicates are shown
  2. bThe ratio of the consumed to the renew of CO every 24 h
  3. cND represents the CO consumption was not detected
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