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Growth kinetics of wild type and knock-out (KO) strains of Sii CJ18 in lactose medium. Growth kinetics of CJ18 wild type (A), CJ18ΔlacIIC (B), CJ18ΔlacS (C) and CJ18ΔlacZ (D) were compared in Elliker-based lactose medium for optical density (OD600 ■) and for metabolites lactose (◊),lactate (○) and galactose (ᐃ) in cell-free supernatant. Representative curves of two independent repetitions per strain are shown.
