Table 1 Conditions and products of the first-round corncob pretreatment
Entry | FeCl3/H2O2/solvent | Xylose yield (%) | Xylose (g/L) | Glucose yield (%) | Glucose (g/L) | Arabinose yield (%) | Total carbohydrates yield (%) |
|---|---|---|---|---|---|---|---|
1 | –/H2O2/DMSO + H2O (1:6) | 6.5 ± 0.4 | 1.43 ± 0.05 | 2.9 ± 0.3 | 0.94 ± 0.07 | 2.8 ± 0.4 | 15.4 ± 0.7 |
2 | FeCl3/–/DMSO + H2O (1:6) | 5.2 ± 0.4 | 1.15 ± 0.07 | 4.8 ± 0.1 | 1.54. ± 0.05 | 5.8 ± 0.6 | 31.4 ± 0.8 |
3 | FeCl3/H2O2/DMSO + H2O (1:6) | 92.2 ± 1.8 | 20.42 ± 0.68 | 20.1 ± 0.8 | 6.55 ± 0.07 | 98.4 ± 1.1 | 74.4 ± 1.1 |
4 | FeCl3/H2O2/DMSO + H2O (3:1) | 66.8 ± 0.7 | 14.77 ± 0.15 | 15.2 ± 0.3 | 4.95 ± 0.11 | 64.3 ± 0.9 | 61.3 ± 0.9 |
5 | FeCl3/H2O2/DMSO + H2O (1:3) | 85.3 ± 1.1 | 18.80 ± 0.35 | 16.5 ± 0.6 | 5.40 ± 0.18 | 97.2 ± 0.8 | 68.3 ± 0.9 |
6 | FeCl3/–/H2O | 6.8 ± 0.2 | 1.50 ± 0.08 | 5.5 ± 0.8 | 1.79 ± 0.14 | 7.4 ± 0.3 | 33.1 ± 1.6 |
7 | FeCl3/H2O2/H2O | 10.4 ± 0.7 | 2.30 ± 0.09 | 7.8 ± 0.5 | 2.54 ± 0.04 | 10.6 ± 0.7 | 8.2 ± 1.0 |
8 | FeCl3/H2O2/DMSO | 15.6 ± 0.6 | 3.35 ± 0.15 | 9.7 ± 0.4 | 3.17 ± 0.11 | 20.7 ± 0.5 | 47.3 ± 0.6 |