Fungal pretreatment of agricultural residues for bioethanol production
Fungal pretreatment of agricultural residues for bioethanol production
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DOI：
10.1016/j.indcrop.2016.05.036
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发表时间：
2016-10-30
影响因子：
5.9
通讯作者：
Lema, J. M.
中科院分区：
文献类型：
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作者：
Garcia-Torreiro, M.;Lopez-Abelairas, M.;Lema, J. M.
用于生产乙醇的木质纤维素生物质的生物预处理是一种环境友好的工艺，需要用不同的原料进行评估，以避免对单一原料的依赖。在这项研究中，四个农业残留物（玉米秸秆，大麦秸，玉米芯和麦秸），选择在其组成和地理可用性方面，使用白腐菌Irpex lacteus预处理。在真菌预处理之后，玉米秸秆实现了木质素含量的最大降低（45.8 +/- 3.5%）、最低糖消耗（11.5 +/- 1.4%）和最高木质素选择性去除（2.1 +/- 0.15）。除玉米芯外，其它底物的综纤维素消化率均显著提高（37-103%）。在这项研究中，真菌预处理成功地应用于三个最常见的农业残留物可在欧洲生产乙醇，证明它是能够处理原料的可变来源。(C)© 2016 Elsevier B. V.版权所有。
The biological pretreatment of lignocellulosic biomass for the production of ethanol is an environmentally friendly process that needs to be evaluated with different feedstocks in order to avoid dependence on a single feedstock. In this study, four agricultural residues (corn stover, barley straw, corncob and wheat straw), selected in terms of their composition and geographic availability, were pretreated using the white-rot fungus Irpex lacteus. After the fungal pretreatment, the biggest reduction in lignin content (45.8 +/- 3.5%), lowest sugars consumption (11.5 +/- 1.4%) and highest lignin selectivity removal (2.1 +/- 0.15) were achieved with corn stover. Moreover, total holocellulose digestibility was significantly increased after the biological pretreatment with all the substrates (37-103%), excepting corncob. In this study, fungal pretreatment was successfully applied to three of the most common agricultural residues available in Europe for producing ethanol, demonstrating that it is capable of handling feedstocks of variable origin. (C) 2016 Elsevier B.V. All rights reserved.