Pretreatment conditions | Inhibitors in the pretreated CS (g/100 g DM) | Sugars in the pretreated CS (g/100 g DM) | |||||
---|---|---|---|---|---|---|---|
Furfural | 5-HMF | Acetic acid | Glucose | Xylose | O-Glu | O-Xyl | |
Changing temperature | |||||||
165°C, 2.5%, 3 minutes, 50 rpm | 0.13 ± 0.02 | 0.03 ± 0.00 | 0.45 ± 0.15 | 0.43 ± 0.01 | 7.58 ± 0.14 | 0.94 ± 0.06 | 9.28 ± 1.11 |
175°C, 2.5%, 3 minutes, 50 rpm | 0.24 ± 0.02 | 0.06 ± 0.00 | 0.55 ± 0.01 | 0.60 ± 0.01 | 10.05 ± 0.21 | 0.78 ± 0.03 | 6.42 ± 0.09 |
185°C, 2.5%, 3 minutes, 50 rpm | 0.63 ± 0.01 | 0.17 ± 0.01 | 0.81 ± 0.15 | 1.01 ± 0.02 | 10.20 ± 0.02 | 1.10 ± 0.44 | 2.84 ± 0.45 |
Changing acid concentration | |||||||
185°C, 1.5%, 3 minutes, 50 rpm | 0.08 ± 0.01 | 0.04 ± 0.02 | 0.59 ± 0.06 | 0.45 ± 0.05 | 2.39 ± 0.00 | 0.72 ± 0.04 | 11.02 ±0.02 |
185°C, 2.0%, 3 minutes, 50 rpm | 0.18 ± 0.06 | 0.09 ± 0.07 | 0.58 ± 0.02 | 0.48 ± 0.00 | 5.34 ± 0.01 | 0.77 ± 0.00 | 8.45 ± 0.38 |
185°C, 2.5%, 3 minutes, 50 rpm | 0.63 ± 0.01 | 0.17 ± 0.01 | 0.81 ± 0.15 | 1.01 ± 0.02 | 10.20 ± 0.02 | 1.10 ± 0.44 | 2.84 ± 0.45 |
185°C, 3.0%, 3 minutes, 50 rpm | 0.89 ± 0.03 | 0.30 ± 0.03 | 1.29 ± 0.03 | 2.41 ± 0.02 | 9.99 ± 0.11 | 0.39 ± 0.01 | 0.81 ± 0.15 |
185°C, 3.5%, 3 minutes, 50 rpm | 0.78 ± 0.02 | 0.36 ± 0.07 | 1.24 ± 0.05 | 2.07 ± 0.02 | 7.85 ± 0.08 | 0.45 ± 0.01 | 0.80 ± 0.10 |
185°C, 4.0%, 3 minutes, 50 rpm | 0.84 ± 0.07 | 0.41 ± 0.17 | 1.22 ± 0.16 | 3.50 ± 0.02 | 8.34 ± 0.04 | 0.43 ± 0.07 | 0.45 ± 0.13 |
Changing residue time | |||||||
185°C, 2.5%, 1 minute, 50 rpm | 0.39 ± 0.03 | 0.12 ± 0.01 | 0.73 ± 0.04 | 0.79 ± 0.00 | 9.89 ± 0.03 | 0.90 ± 0.08 | 2.56 ± 0.35 |
185°C, 2.5%, 3 minutes, 50 rpm | 0.63 ± 0.01 | 0.17 ± 0.01 | 0.81 ± 0.15 | 1.01 ± 0.02 | 10.20 ± 0.02 | 1.10 ± 0.44 | 2.84 ± 0.45 |
185°C, 2.5%, 5 minutes, 50 rpm | 0.80 ± 0.15 | 0.27 ± 0.03 | 1.09 ± 0.07 | 1.21 ± 0.02 | 7.91 ± 0.06 | 0.96 ± 0.11 | 1.35 ± 0.04 |
185°C, 2.5%, 10 minutes, 50 rpm | 0.99 ± 0.10 | 0.30 ± 0.02 | 1.13 ± 0.07 | 1.17 ± 0.01 | 6.27 ± 0.07 | 0.69 ± 0.04 | 0.37 ± 0.08 |
Changing agitation rate | |||||||
185°C, 2.5%, 3 minutes, 10 rpm | 0.59 ± 0.04 | 0.18 ± 0.02 | 0.80 ± 0.10 | 0.99 ± 0.20 | 10.65 ± 0.35 | 0.49 ± 0.07 | 1.53 ± 0.00 |
185°C, 2.5%, 3 minutes, 30 rpm | 0.52 ± 0.02 | 0.19 ± 0.00 | 0.79 ± 0.11 | 0.97 ± 0.27 | 10.58 ± 0.23 | 0.78 ± 0.05 | 2.04 ± 0.04 |
185°C, 2.5%, 3 minutes, 50 rpm | 0.63 ± 0.01 | 0.17 ± 0.01 | 0.81 ± 0.15 | 1.01 ± 0.02 | 10.20 ± 0.02 | 1.10 ± 0.44 | 2.84 ± 0.45 |