Fig. 4From: Enhanced lincomycin A production by calcium gluconate feeding in fermentation of Streptomyces lincolnensisTime course of enzyme activities of glucokinase (GK) (EMP) (a), glucose 6-phosphate dehydrogenase (G6PD) (PPP) (b) and isocitrate dehydrogenase (ICD) (TCA cycle) (c). Black: mode 8. Red: control. Each point represents the mean (n = 3) ± standard deviation. **Represents p < 0.01Back to article page