Table 5 Effect of different treating steps on the concentration of PHL components
PHL | Lignin (g/L) | Acetic acid (g/L) | HMF (g/L) | Xylose (g/L) | Xylan (g/L) | Xylosugars (g/L) |
|---|---|---|---|---|---|---|
Origin PHL | 9.7 ± 0.49 | 6.2 ± 0.26 | 1.9 ± 0.1 | 12.3 ± 0.68 | 23.3 ± 0.79 | 35.6 ± 1.47 |
PHL-1st | 5.7 ± 0.29 | 11.7 ± 0.59 | 1.0 ± 0.04 | 12.1 ± 0.56 | 23.1 ± 0.99 | 35.2 ± 1.55 |
PHL-2nd | 2.6 ± 0.17 | 11.2 ± 0.34 | 0.1 | 11.8 ± 0.47 | 21.3 ± 0.89 | 33.1 ± 1.36 |
PHL-4th | 0.9 ± 0.07 | 12.7 ± 0.55 | 0 | 11.6 ± 0.52 | 20.5 ± 0.98 | 32.1 ± 1.5 |
Removal (%) | 90.7 | – | 100 | 5.7 | 12.0 | 9.9 |