Skip to main content

Advertisement

Table 2 The dynamic changes of the important metabolites

From: Periodic-peristole agitation for process enhancement of butanol fermentation

Time (h) 36 h 48 h 96 h 108 h
NADH/NAD+ 0.16 ± 0.056a 0.24 ± 0.079a 0.1 ± 0.026a 0.07 ± 0.012a
0.12 ± 0.017b 0.17 ± 0.069b 0.06 ± 0.01b 0.05 ± 0.020b
0.15 ± 0.037c 0.21 ± 0.092c 0.04 ± 0.02c 0.02 ± 0.011c
NADPH/NADP+ 4.2 + 1.5a 10.32 + 1.8a 5.67 + 1.6a 2.21 + 1.83a
3.45 + 0.98b 7.64 + 2.91b 3.46 + 1.79b 1.14 + 0.31b
3.98 + 1.7c 5.65 + 1.79c 2.74 + 1.49c 0.67 + 0.38c
AcCoA** 1.37 ± 0.68a 2.10 ± 0.14a 1.90 ± 0.26a 0.07 ± 0.02a
1.06 ± 0.42b 1.65 ± 0.11b 2.33 ± 0.17b 0.11 ± 0.03b
1.34 ± 0.69c 2.17 ± 0.19c 1.84 ± 0.43c 0.03 ± 0.02c
ATP** 3.54 ± 0.82a 3.86 ± 0.23a 2.34 ± 0.14a 1.45 ± 0.15a
4.27 ± 0.17b 2.88 ± 0.47b 1.93 ± 0.13b 1.11 ± 0.10b
3.31 ± 0.21c 3.59 ± 0.56c 1.35 ± 0.09c 0.863 ± 0.16c
  27.2 ± 1.9a 28.5 ± 2a 39.8 ± 2.8a 25.3 ± 1.3a
Oleic acid** 25.7 ± 1.8b 25.7 ± 0.8b 32.4 ± 2.6b 27.2 ± 2.1b
  34 ± 2.4c 35.2 ± 1.4c 49.9 ± 2.5c 46.2 ± 3.6c
  23.6 ± 0.9a 35.1 ± 2a 31.8 ± 2.2a 28.3 ± 1.4a
Stearic acid** 25.5 ± 1.3b 36.7 ± 1.9b 29.4 ± 1.2b 29.9 ± 2.1b
  26.1 ± 0.8c 37.2 ± 1.6c 21.2 ± 1.9c 11.7 ± 1.6c
Linoleic acid** 35.9 ± 0.6a 15.7 ± 0.9a 18.3 ± 1.1a 19.4 ± 1.4a
32.9 ± 1.0b 13.4 ± 0.4b 15.5 ± 0.5b 15.9 ± 0.8b
32.8 ± 0.9c 13.8 ± 1.1c 21.6 ± 1.5c 23.5 ± 1.2c
Arachidonic acid** 42.1 ± 1.5a 38.5 ± 1.5a 30.1 ± 1.2a 23.3 ± 1.3a
34.8 ± 2.1b 41.4 ± 2.1b 35.6 ± 1.3b 33.3 ± 1.8b
45.4 ± 3.6c 46.2 ± 2.8c 43.1 ± 4.4c 41.5 ± 4.5c
  1. ** Stands for the special concentration at the corresponding time point (μmol/g); which is calculated by the concentration/biomass
  2. aStands for the periodic-peristole agitation group
  3. bStands for the Stationary culture group
  4. cStands for the traditional Rushton impeller