Fig. 3

Growth curve and gas composition during the cultivation of P. thermoglucosidasius DSM 6285 with the combined superior parameters (55 °C, pH 7.0, addition of 0.08 mM FeSO₄·7H₂O, 75:25 initial gas atmosphere CO:air ratios, 4 h incubation time of the 2nd pre-culture, 10% inoculum size)