Table 2 Chemical components of untreated wood chips, solid substrates, and pretreatment hydrolysate
Untreated wood chips | Solid substrates | Pretreatment hydrolysate (mg/mL) | |||
|---|---|---|---|---|---|
Poplar (100Â g) | Lodgepole pine (100Â g) | SP-Po-A 1 B 4 (73.5Â g) | SP-Lp-A 1 B 8 (58.6Â g) | SP-Po-A 1 B 4 (300Â mL) | SP-Lp-A 1 B 8 (300Â mL) |
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Klason lignin 23.5% | Klason lignin 28.6% | Klason lignin 26.2% | Klason lignin 34.7% | LS as Klason lignin 12.5 | LS as Klason lignin 27.5 |
Glucan 40.7% | Glucan 41.9% | Glucan 48.4% | Glucan 57.4% | Mono- and oligosaccharides | Mono- and oligosaccharides |
Xylan 16.4% | Xylan 5.5% | Xylan 4.38% | Xylan 1.5% | Glucose 3.97 | Glucose 9.83 |
Mannan 3.8% | Mannan 11.7% | Mannan 1.48% | Mannan 0.6% | Xylose 41.00 | Xylose 8.07 |
| Â | Â | Sulfonic acid groups | Sulfonic acid groups | Mannose 4.39 | Mannose 21.88 |
Inhibitors | Inhibitors | ||||
4.22Â mg/g substrate | 10.85Â mg/g substrate | ||||
Zeta potential at pHÂ 4.8 | Zeta potential at pHÂ 4.8 | Formic acid 24.58 | Formic acid 17.05 | ||
Acetic acid 10.65 | Acetic acid 18.66 | ||||
−18.5 mv | −21.3 mv | Furfural 1.97 | Furfural 4.17 | ||
HMF 0.19 | HMF 5.00 | ||||
