Fig. 3

Cell dry weight and lycopene yield of strain EBI induced with different IPTG concentrations. a Cell dry weight of EBI in LB medium with the addition of 0–1 mM IPTG at 30 °C for 48 h. b Lycopene production of EBI in LB medium with the addition of 0 to 1 mM IPTG at 30 °C for 48 h. The data represent the means of three independent experiments. Error bars represent standard deviations