TABLE 1.

Growth rates and substrate consumption rates of WT C. glutamicum in shake flask experiments

SubstratedGrowth rate (h−1)aSubstrate consumption rate [mmol C/(g CDW × h)]b
AcetateGlucoseMaltose
Glucose0.36 ± 0.04NDc10.01 ± 0.72ND
Maltose0.36 ± 0.03NDND10.12 ± 1.13
Glucose + maltose0.43 ± 0.05ND11.53 ± 0.439.21 ± 1.22
Glucose + acetate0.38 ± 0.057.10 ± 0.314.31 ± 0.27ND
Maltose + acetate0.46 ± 0.066.38 ± 0.22ND9.54 ± 0.53
Glucose + maltose + acetate0.44 ± 0.056.57 ± 0.137.86 ± 0.838.52 ± 0.42
  • a Growth rate was calculated for the exponential phase for the first 6 h of fermentation.

  • b CDW was calculated from the OD600 (after 6 h) by using a ratio of 0.3 g CDW liter−1 per unit of OD600 (4). Substrate consumption was calculated for acetate, glucose, and maltose for the first 6 h of fermentation.

  • c ND, not detected.

  • d All carbon sources were used at a concentration of 2% (wt/vol).