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Table 1 Cycling fermentations and overall productivity improvement

From: Improving ethanol productivity through self-cycling fermentation of yeast: a proof of concept

Cycle number Cycle time (h) Glucose available at onset of cycle (g) Amount of ethanol produced in a given cycle (g) Yield of ethanol produced in a given cycle per glucose fed (g/g) Overall productivity improvement compared to batch (%)
1 21.9 ± 0.1a 14.3 ± 0.0a 5.6 ± 0.0a 0.4 ± 0.0a −9.7 ± 0.6a
2 6.4 ± 0.0b 6.9 ± 0.1b 2.5 ± 0.2b 0.4 ± 0.0a 15.6 ± 3.4b
3 6.3 ± 0.0bc 6.8 ± 0.0c 2.4 ± 0.1bc 0.3 ± 0.0a 34.9 ± 2.0c
4 6.2 ± 0.0cd 6.5 ± 0.0d 2.3 ± 0.1bc 0.4 ± 0.0a 51.1 ± 2.7d
5 6.1 ± 0.0d 6.3 ± 0.1e 2.2 ± 0.1c 0.3 ± 0.0a 64.4 ± 3.3e
  1. Numbers indicate the mean ± standard deviation of triplicate experiments. Within the same column, values with different superscript letters are statistically different