Skip to main content

Table 6 The performance of ABE fermentation with different initial pH of hydrolysate

From: The advanced strategy for enhancing biobutanol production and high-efficient product recovery with reduced wastewater generation

  Initial pH of the hydrolysate
5.8 6.0 6.2 6.4 6.6 6.8 7.0
Initial reducing sugars, g/L 58.9 59.8 57.5 59 58.7 58 59.7
Residual sugars, g/L 12.6 10.3 10.4 10.0 9.5 13.2 14.4
Maximum OD 2.1 2.5 2.5 2.2 2.2 2.2 2.1
Fermentation time, h 60 60 60 60 60 60 60
Acetone, g/L 5.3 5.6 5.7 5.6 5.4 5.4 5.2
Ethanol, g/L 0.1 0.2 0.2 0.2 0.2 0.2 0.1
Butanol, g/L 9.7 10.0 11.8 11.1 10.8 10.5 10.0
Total ABE, g/L 15.1 15.8 17.6 16.9 16.3 16.0 15.3
Butanol yield, g/g 0.21 0.20 0.25 0.23 0.22 0.23 0.22
Butanol productivity, g/L/h 0.12 0.12 0.14 0.13 0.13 0.13 0.12
\