Substrate | Pretreatment conditions | Composition of pretreated feedstocks (%)1 | Abbreviation | |||||
---|---|---|---|---|---|---|---|---|
SO 2 -steam pretreatment | Ara | Gal | Glu | Xyl | Man | AIL | ||
Douglas fir | 195°C, 4.5 min, 4.5% SO2 | 0.4 | 1.1 | 48.2 | 0.9 | 2.1 | 47.2 | SPDF |
Poplar | 180°C, 5 min, 3% SO2 | 0.3 | 0.8 | 59.8 | 6.6 | 1.3 | 30.4 | SPP180 |
Poplar | 200°C, 5 min, 3% SO2 | 0.3 | 0.8 | 59.3 | 3.72 | 1.2 | 33.9 | SPP200 |
Ethanol-organosolv pretreatment | ||||||||
Lodgepole pine | 170°C, 60 min; 65% EtOH, 1.1% H2SO4 | bdl | bdl | 74.8 | 1.6 | 1.8 | 17.3 | OPLP |