Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, HR-31000 Osijek, Croatia.
Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, HR-31000 Osijek, Croatia.
Bioresour Technol. 2018 Apr;253:220-226. doi: 10.1016/j.biortech.2018.01.037. Epub 2018 Jan 9.
The objective of this research was to use white-rot fungus Trametes versicolor for corn silage pretreatment and to investigate the effect of pretreatment on biogas productivity. Semi-continuous pilot-scale experiment, comprised of two experimental phases, was carried out. In the first phase, operational conditions of the full-scale biogas plant were reproduced at pilot-scale. In that phase, the reactor was daily fed with the mixture of cow manure, digestate from industrial postfermentor, corn grits and ensiled corn silage, and the average methane generation rate was 0.167 m kg. In the second phase, corn grits and ensiled corn silage were replaced with corn silage pretreated with T. versicolor, and the average methane generation rate increased up to 0.236 m kg. The results of this study suggest that application of fungal-based solid-state pretreated corn silage has positive effect on pH stability and increase the biogas productivity.
本研究的目的是利用白腐真菌糙皮侧耳（Trametes versicolor）对玉米青贮进行预处理，并研究预处理对沼气生产力的影响。进行了半连续中试实验，包括两个实验阶段。在第一阶段，中试规模再现了全规模沼气厂的运行条件。在该阶段，反应器每天进料为牛粪、工业后发酵器的消化物、玉米粗粉和青贮玉米青贮料的混合物，平均甲烷生成率为 0.167m3kg。在第二阶段，用 T. versicolor 预处理的玉米青贮料代替玉米粗粉和青贮玉米青贮料，平均甲烷生成率提高到 0.236m3kg。本研究结果表明，应用真菌固态预处理玉米青贮对 pH 稳定性有积极影响，并提高了沼气生产力。
