Table 1 Summary of physiological and biotechnological characteristics of M. marburgensis grown under chloride media conditions.

From: A high-pressure bioreactor system for the cultivation of Methanothermobacter marburgensis on advanced growth media for sustainable energy applications

Reaction set

Cultivation pressure p (bar)

Cultivation time t (h)

MERmax (mmol L−1 h−1)

kmin (bar h−1)

OD578,start

OD578,end

\(q_{{{\text{CH}}_{{4}} }}\)(mmol g−1 h−1)

1

3

17.16 ± 5.28

22.24 ± 6.02

1.35 ± 0.36

0.476 ± 0.011

0.788 ± 0.017

105.89 ± 26.15

2

3

9.00

21.08 ± 5.18

1.28 ± 0.31

0.746 ± 0.024

81.16 ± 21.59

3

3

12.79 ± 2.43

31.31 ± 6.10

1.90 ± 0.37

1.371 ± 0.040

74.89 ± 14.98

4

3

7.13 ± 1.64

49.04 ± 5.82

2.97 ± 0.35

1.371 ± 0.040

1.686 ± 0.135

115.75 ± 15.70

5

3

5.40 ± 1.88

75.84 ± 9.85

4.59 ± 0.60

1.540 ± 0.020

136.00 ± 18.37

6

3

2.73 ± 0.27

94.24 ± 10.40

5.71 ± 0.63

1.989 ± 0.129

167.24 ± 18.42

7

10

26.73 ± 4.24

112.56 ± 20.84

6.82 ± 1.26

1.222 ± 0.022

2.811 ± 0.054

180.36 ± 34.79

8

10

52.22 ± 23.11

144.01 ± 9.18

8.72 ± 0.56

2.491 ± 0.048

3.387 ± 0.093

158.41 ± 13.89

9

10

31.03 ± 0.08

130.81 ± 15.72

7.92 ± 0.95

3.071 ± 0.022

3.489 ± 0.025

130.90 ± 16.89

  1. Set 1–6 (3 bar) experiments were conducted with n = 4, and set 7–9 (10 bar experiments) were conducted with n = 2, with values representing means across reactors R1–R4 and reaction cycles.