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Table 4 Effect of the glucose/glycerol ratio on pH and yield; and carbon balance for glycerol utilization

From: 1,3-propanediol production with Citrobacter werkmanii DSM17579: effect of a dhaD knock-out

Molar ratio glucose/glycerol Yield (mol PDO/mol glycerol) pH Carbon balance glycerol (%)
1 0.90 ± 0.04 5.68 ± 0.05 95.51 ± 0.13
0.33 0.68 ± 0.05 6.07 ± 0.06 109.09 ± 1.26
0.2 0.43 ± 0.12 5.73 ± 0.24 99.80 ± 1.42
0.1 0.37 ± 0.07 5.94 ± 0.02 99.03 ± 0.35
  1. C. werkmanii DSM17579 ∆dhaD was grown in medium with several molar ratios glucose/glycerol under anaerobic conditions on flask scale. The errors represent the standard deviation calculated from two independent experiments.