Table 4 Comparison of EFB-pretreatment performances
From: Optimization of NaOH-catalyzed steam pretreatment of empty fruit bunch
Pretreatment technology | Glucan yields (%) | Enzymatic digestibility (%) | Ethanol yields (g/ 100 g EFB) | References |
|---|---|---|---|---|
3% NaOH-soaked - steam pretreatment | 92 | 87 (30 FPU) | 18.0 | This work |
Aqueous ammonia | 78.3 | 41.4 | 7.3 | 13 |
2% NaOH - 121°C | 60 | 70 | 5.2 | 11 |
Steam | 89 | 30 | 5.0 | 2 |
4% NaOH | 92 | 86.4 | 13.6 | 10 |
H2SO4 | 82.1 | 88.6 (60 FPU) | 17.5 | 14 |