Fig. 4

Screening for cultivation conditions of E. coli BL21DE3 expressing d-Hyd and d-Hyd(co). Growth curves and maximum growth rates under different cultivation conditions. -EtOH +IPTG (dark grey), −EtOH −IPTG (grey), +EtOH +IPTG (dark cyan), +EtOH −IPTG (cyan). Cultivations were carried out in triplicates, shown are the mean values