采用白腐菌（Irpex lacteus）原位处理膜曝气生物膜反应器对预处理山毛榉木进行强化同步糖化发酵。
Enhanced simultaneous saccharification and fermentation of pretreated beech wood by in situ treatment with the white rot fungus Irpex lacteus in a membrane aerated biofilm reactor.
机构信息
Bern University of Applied Sciences, School of Agricultural, Forest and Food Sciences, Länggasse 85, CH-3052 Zollikofen, Switzerland.
Bern University of Applied Sciences, School of Agricultural, Forest and Food Sciences, Länggasse 85, CH-3052 Zollikofen, Switzerland; Laboratory of Sustainable and Catalytic Processing, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
出版信息
Bioresour Technol. 2017 Aug;237:135-138. doi: 10.1016/j.biortech.2017.03.050. Epub 2017 Mar 18.
The aim of the present study was to investigate the combination of steam pretreatment and biological treatment with lignin degrading fungal strains in order to enable efficient bioprocessing of beech wood to ethanol. In a sequential process of steam and fungal pretreatment followed by enzymatic hydrolysis, Irpex lacteus almost doubled the glucose yield for mildly pretreated beech wood, but could not improve yields for more severely pretreated substrates. However, when simultaneous saccharification and fermentation is combined with in situ I. lacteus treatment, which is enabled by the application of a membrane aerated biofilm reactor, ethanol yields of optimally steam pretreated beech could be improved from 65 to 80%. Generally, in situ fungal treatment during bioprocessing of lignocellulose is an interesting method to harness the versatile abilities of white rot fungi.
本研究旨在探讨蒸汽预处理与木质素降解真菌菌株的生物处理相结合，以实现高效的从山毛榉木到乙醇的生物加工。在蒸汽和真菌预处理的顺序过程之后进行酶水解，白腐菌几乎使轻度预处理的山毛榉木的葡萄糖产量增加了一倍，但不能提高更严重预处理底物的产量。然而，当同步糖化和发酵与原位白腐菌处理相结合时，通过应用膜曝气生物膜反应器实现了这一点，最佳蒸汽预处理山毛榉木的乙醇产量可以从 65%提高到 80%。一般来说，木质纤维素生物加工过程中的原位真菌处理是利用白腐真菌多功能性的一种有趣方法。
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