Table 5 Recovery of silica, lignin, and carbohydrates from the two liquors of bamboo processing
From: A biorefinery scheme to fractionate bamboo into high-grade dissolving pulp and ethanol
Sample | Solid content (%) | Chemical composition (%)a | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Ash (without silica) | Silica | Glucan | Xylan | Galactan | Arabinan | Lignin | Phenolic | Others | ||
APEL | 5.81 ± 0.06 | 47.71 ± 0.12 | 4.56 ± 0.10 | 7.47 ± 0.04 | 24.14 ± 0.23 | 0.82 ± 0.03 | 0.94 ± 0.23 | 3.77 ± 0.16 | ≈0.13 | 10.28 ± 0.11 |
BL | 17.36 ± 0.04 | 34.32 ± 0.14 | ND | 12.85 ± 0.48 | 15.48 ± 0.47 | 0.46 ± 0.05 | 0.58 ± 0.04 | 30.22 ± 0.36 | 3.75 ± 0.11 | 3.23 ± 0.13 |
Recovery | Silica (%)b | Lignin (%)b | Carbohydrates (%)b | Composition of carbohydrates (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Glucan | Xylan | Galactan | Arabinan | Lignin | Phenolic | Others | ||||
APEL | 1.06 ± 0.04 | NA | 10.13 ± 0.10 | 16.26 ± 0.04 | 53.44 ± 0.23 | 1.54 ± 0.03 | 2.21 ± 0.23 | 7.40 ± 0.16 | ≈0.13 | 16.64 ± 0.11 |
BL | NA | 19.74 ± 0.14 | 21.06 ± 0.23 | 39.12 ± 0.06 | 48.29 ± 0.15 | 0.90 ± 0.11 | 1.12 ± 0.16 | 0.78 ± 0.17 | 5.54 ± 0.16 | 3.06 ± 0.14 |