Fig. 5
From: CO-dependent hydrogen production by the facultative anaerobe Parageobacillus thermoglucosidasius
Growth curves of P. thermoglucosidasius DSM 2542T, P. toebii DSM 14590T and G. thermodenitrificans DSM 465T. All strains were grown in quadruplicate in stoppered serum bottles with an initial gas atmosphere composition of 50% CO and 50% air. P. thermoglucosidasius DSM 2542T reached a maximum absorbance (OD600 = 0.82) after 6.01 h, by the end of the cultivation the OD600 increased to a value of 0.71. A maximum absorbance for P. toebii DSM 14590T was reached after 9.12 h (OD600 = 0.73). The OD600 decreased during the cultivation to a final value of 0.24. For G. thermodenitrificans DSM 465 the highest OD600 = 0.64 was observed after 6.04 h. The OD600 decreased to a final value of 0.40