Skip to main content

Table 1 ABE fermentation with different pretreated cassava

From: Effective continuous acetone–butanol–ethanol production with full utilization of cassava by immobilized symbiotic TSH06

Parameters Cassava Glucose
Enzymatic hydrolysis Gelatinization Non-pretreatment
Initial starch (g/L) 0 54.4 ± 1.0 54.2 ± 0.9 0
Initial glucose (g/L) 60.6 ± 1.1 0 0 60.3 ± 1.1
Ultimate starch (g/L) 0 0 0 0
Ultimate glucose (g/L) 6.0 ± 1.2 4.9 ± 0.6 4.8 ± 0.9 6.3 ± 1.4
Butanol (g/L) 11.6 ± 0.4 11.4 ± 0.2 11.6 ± 0.3 11.7 ± 0.2
Acetone (g/L) 4.2 ± 0.2 4.2 ± 0.3 4.3 ± 0.1 4.9 ± 0.2
Ethanol (g/L) 1.7 ± 0.1 1.6 ± 0.2 1.6 ± 0.2 1.7 ± 0.1
Total solvents (g/L) 17.5 ± 0.8 17.2 ± 0.7 17.5 ± 0.3 18.3 ± 0.4
Total solvents yield (g/g) 0.35b 0.34b 0.35b 0.33a
Butanol yield (g/g) 0.23d 0.23d 0.23d 0.22c
Butanol productivity (g/L/h) 0.16 0.16 0.16 0.16
Total solvent productivity (g/L/h) 0.24 0.24 0.24 0.25
  1. aSolvent yield on reducing sugar
  2. bSolvent yield on cassava starch
  3. cButanol yield on reducing sugar
  4. dButanol yield on cassava starch