Substrate | Pretreatment conditions | CrI (%) before pretreatment | CrI (%) after pretreatment | Reference |
---|---|---|---|---|
Rice straw | DA pretreatment: 1% H2SO4, 180°C, 4 min | 57.0a | 65.0a | [84] |
Poplar | DA pretreatment: 2% H2SO4, 190°C, 70 s | 49.9a | 50.6a | [32] |
Corn stover | DA pretreatment: 3% H2SO4, 180°C, 90 s | 50.3a | 52.5a | [32] |
Loblolly pine | DA pretreatment: 1st stage: 0.5% H2SO4, 180°C, 10 min; 2nd stage: 1.0% H2SO4, 200°C, 2 min. | 62.5b | 69.9b | [22] |
Switchgrass | DA pretreatment: 5% H2SO4, 190°C, 1 min | 44.0b | 52.0b | [85] |
Poplar | Hydrothermal pretreatment: 200°C, 10 min | 49.9a | 54.0a | [32] |
Tamarix ramosissima | Hydrothermal pretreatment: 180°C, 9 min | 41.0a | 51.4a | [86] |
Costal Bermuda grass | Hydrothermal pretreatment: 170°C, 60 min | 50.2a | 69.4a | [87] |