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Table 2 Mass isotopic distribution of ethanol produced from [1-13C] glucose by recombinant C. glutamicum strains

From: Coexistence of the Entner–Doudoroff and Embden–Meyerhof–Parnas pathways enhances glucose consumption of ethanol-producing Corynebacterium glutamicum

Strain Normalized intensity of mass fragment1 Tukey test2
m/z 46 m/z 47
CRZ2e 41.6 ± 0.6 11.4 ± 0.6 a
CRZ2e-ED 27.4 ± 0.4 3.02 ± 3.02 b
CRZ2e-EDΔpfkA 24.8 ± 0.2 0.85 ± 0.43 c
Non-labeled ethanol 23.8 ± 0.5 1.02 ± 0.02 c
  1. Data show averages and standard errors from three measurements
  2. 1The intensity was normalized by the intensity of m/z 31
  3. 2The different letters (a–c) indicate significant differences in m/z 47 between the samples (one-way ANOVA followed by Tukey’s HSD test, P < 0.05)