Table 2 Comparisons of yields (per kg of FS-10) of key wood components in the recovered solids and liquid hydrolysate from SPORL pretreatments at 165°C for 75 min with and without pH profiling
Washed solids (g) | Pretreatment hydrolysate (spent liquor) (g) (only monomeric sugars were reported) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pretreated sample a | Glucan | Xylan | Mannan | K lignin | Solids yields b | Glucose as glucan | Xylose as xylan | Mannose as mannan | K lignin c | Furfural as pentosan | HMF as hexosan | Yield d | Total yield |
t0A4B12 | 388.4 | 13.7 | 15.8 | 170.6 | 612.7 | 21.8 | 17.7 | 54.6 | 120.3 | 5.0 | 9.3 | 228.7 | 841.4 |
t25A4B12 | 405.6 | 22.7 | 23.7 | 130.1 | 603.9 | 10.0 | 13.5 | 32.8 | 160.8 | 2.2 | 4.0 | 222.9 | 826.8 |
t35A4B12 | 410.7 | 20.4 | 21.8 | 137.7 | 616.5 | 15.7 | 15.1 | 38.2 | 153.2 | 2.0 | 3.8 | 228.0 | 844.5 |
t45A4B12 | 406.5 | 21.0 | 25.7 | 131.9 | 622.3 | 9.1 | 14.2 | 30.9 | 159.0 | 2.0 | 2.9 | 218.1 | 840.4 |