Fig. 3
From: Engineering Corynebacterium glutamicum for the production of 2,3-butanediol
Effect of aeration rate on end-products of glucose metabolism in the triple deletion mutant C. glutamicum ΔaceEΔpqoΔldhA(pEKEx2-als,aldB, Ptuf butA) (a) and the quadruple deletion mutant ΔaceEΔpqoΔldhAΔmdhA (pEKEx2-als,aldB, Ptuf butA) (b). Fifty mL of cell suspension in 80-mL fermenter incubated with 2 % (wt/vol) glucose for 30 h at 30 °C. The air flow was 5, 10 or 20 mL/min. Red 2,3-BD; blue acetoin; magenta acetolactate; light green succinate; purple acetate; brown pyruvate; dark green α-ketoisovalerate; light grey α-ketoglutarate; black DHA; dark grey glycerol; pink ethanol; yellow l-alanine