School of Chemistry, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia.
Bioresour Technol. 2011 Oct;102(19):9325-9. doi: 10.1016/j.biortech.2011.07.072. Epub 2011 Jul 22.
Dissolution of bagasse with 1-butyl-3-methylimidazolium chloride at high temperatures (110-160 °C) is investigated as a pretreatment process for saccharification and fermentation based biofuel production. Material balances are reported and used along with enzymatic saccharification data to identify optimum pretreatment conditions (150 °C for 90 min). At all pretreatment temperatures, dissolved and reprecipitated material is enriched in cellulose, has a low crystallinity and the cellulose component is easily and quantitatively hydrolysed (100%, 3h, 15 FPU). At pretreatment temperatures ≤ 150 °C, the undissolved material has only slightly lower crystallinity than the starting. At pretreatment temperatures ≥ 150 °C, the undissolved material has low crystallinity and when combined with the dissolved material has a saccharification rate and extent similar to completely dissolved material. Complete dissolution is not necessary to maximise saccharification efficiency at temperatures ≥ 150 °C.
高温（110-160°C）下用 1-丁基-3-甲基咪唑氯盐溶解蔗渣作为糖化和发酵生产生物燃料的预处理过程进行了研究。报告了物料平衡，并结合酶糖化数据来确定最佳预处理条件（150°C 90 分钟）。在所有预处理温度下，溶解和再沉淀的物质富含纤维素，结晶度低，纤维素组分易于定量水解（100%，3h，15 FPU）。在预处理温度≤150°C时，未溶解的物质的结晶度仅略低于起始物。在预处理温度≥150°C时，未溶解的物质结晶度低，与溶解的物质结合后，糖化速率和程度与完全溶解的物质相似。在温度≥150°C 时，完全溶解不是提高糖化效率的必要条件。
