Table 1 Pretreatment methods and conditions of poplar
Sample code | Poplar sample | Starting % Klason lignin | Pretreatment conditions |
|---|---|---|---|
PL23-t0 | Native | 23.2 | - |
PL23-t15 | Dilute acid pretreated | 23.2 | 0.1 M H2SO4,160°C, 15 minutes |
PL23-t35 | Dilute acid pretreated | 23.2 | 0.1 M H2SO4,160°C, 35 minutes |
PL19-t0 | Delignified | 19.2 | - |
PL19-t15 | Delignified then dilute acid pretreated | 19.2 | 0.1 M H2SO4,160°C, 15 minutes |
PL19-t35 | Delignified then dilute acid pretreated | 19.2 | 0.1 M H2SO4,160°C, 35 minutes |
PL14-t0 | Delignified | 14.3 | - |
PL14-t15 | Delignified then dilute acid pretreated | 14.3 | 0.1 M H2SO4,160°C, 15 minutes |
PL14-t35 | Delignified then dilute acid pretreated | 14.3 | 0.1 M H2SO4,160°C, 35 minutes |