两段式水热机械精炼预处理对未解毒甘蔗渣水解物的发酵。
Fermentation of undetoxified sugarcane bagasse hydrolyzates using a two stage hydrothermal and mechanical refining pretreatment.
机构信息
Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
National Center for Agricultural Utilization Research, US Department of Agriculture, Peoria, IL, USA.
出版信息
Bioresour Technol. 2018 Aug;261:313-321. doi: 10.1016/j.biortech.2018.04.018. Epub 2018 Apr 7.
In this study, liquid hot water pretreatment was combined with disk milling for pretreatment of sugarcane bagasse. Sugarcane bagasse was pretreated using liquid hot water (LHW) at 140-180 °C for 10 min (20% w/w solids content) and then disk milled. Disk milling improved glucose release 41-177% and ethanol production from glucose/xylose cofermentation by 80% compared to only using LHW pretreatment. The highest ethanol conversion efficiency achieved was 94%, which was observed when bagasse was treated at 180 °C with LHW and disk milled. However, a small amount of residual xylose (3 g/L) was indicative that further improvement could be achieved to increase ethanol production.
在这项研究中，液体热预处理与盘式磨浆相结合，用于预处理甘蔗渣。甘蔗渣在 140-180°C 的液体热水（LHW）中预处理 10 分钟（固含量 20%），然后进行盘式磨浆。与仅使用 LHW 预处理相比，盘式磨浆将葡萄糖释放提高了 41-177%，将葡萄糖/木糖共发酵生产的乙醇提高了 80%。当用 LHW 在 180°C 处理并进行盘式磨浆时，甘蔗渣的乙醇转化率最高可达 94%。然而，仍有少量的残留木糖（3g/L）表明，可以进一步改进以提高乙醇产量。
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