Pretreatment condition | Liquid fraction | Solid fraction | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sugar recovery | Solid yield (%) | Chemical composition | Enzymatic hydrolysis | |||||||||||
Combined severity2 | pH | Glucose | Xylose | Total sugars1 | Glucan (%) | Xylan (%) | Lignin (%) | Ash (%) | Glucose conversion (%) | |||||
kg/tonne | Mon3 % | kg/tonne | Mon % | kg/tonne | Mon % | |||||||||
Untreated | 1.72 | 1.78 | 79.1 ± 0.1 | 75.4 | 114.8 ± 1.5 | 70.8 | 232.4 ± 1.8 | 72.9 | 54.8 | 59.3 ± 0.8 | 1.7 ± 0.0 | 36.9 ± 0.6 | 1.4 ± 0.1 | 62.4 ± 0.8 |
Neutral | 1.84 | 1.66 | 85.6 ± 0.0 | 83.0 | 148.5 ± 0.7 | 80.3 | 279.4 ± 1.3 | 81.5 | 54.4 | 58.7 ± 1.1 | 1.9 ± 0.0 | 35.0 ± 2.5 | 0.7 ± 0.0 | 68.3 ± 0.7 |
Acidic-neutral | 1.88 | 1.62 | 66.1 ± 0.2 | 86.0 | 135.3 ± 0.5 | 81.1 | 235.1 ± 0.3 | 82.8 | 58.8 | 59.8 ± 1.1 | 2.3 ± 0.0 | 36.4 ± 0.3 | 0.3 ± 0.1 | 74.1 ± 1.0 |
Acidic | 2.08 | 1.42 | 88.1 ± 0.1 | 85.8 | 118.6 ± 0.8 | 83.1 | 241.6 ± 0.9 | 84.3 | 53.7 | 58.1 ± 0.2 | 0.6 ± 0.0 | 38.9 ± 0.6 | 0.4 ± 0.1 | 76.0 ± 5.2 |