Table 4.
Bioconversion of spent grain to ethanol using two different technical approaches.
| Growth stage | Biomass (g L-1) |
Enzyme activities (Units mL-1) |
Initial Ethanol production rate (mg L-1 h-1) |
Ethanol yield (g EtOH kg-1 dry BG) |
Theoretical ethanol yield* g EtOH kg-1 dry BG |
Reference | |
| Endoglucanase | Xylanase | ||||||
| Submerged culture |
1.52 | 8.8 | 52 | 67 | 109 | 195 | Present study |
| Solid state culture | 2.55 | 0.6 | 9.8 | 29 | 65 | 195 | [10] |
*The theoretical ethanol yield is based on total glucose and xylose content of dry material