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Table 3 Growth (OD600), GABA formation (gL−1, gL−1h−1) and yield (mol GABA mol glucose−1) of C. glutamicum strains producing GABA for 120 hours

From: Disruption of pknG enhances production of gamma-aminobutyric acid by Corynebacterium glutamicum expressing glutamate decarboxylase

C. glutamicumstrain GAD GADΔpknG
OD600 71.86 ± 0.59 40.56 ± 1.05
Glucose consumed (gL−1) 83.62 ± 2.92 60.90 ± 4.89
GABA (gL−1) 13.06 ± 0.45 31.16 ± 0.41
Relative difference 1 2.29
GABA (gL−1 h−1) 0.108 0.259
Yield (mol GABA mol glucose−1) 0.272 0.893