Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
J Agric Food Chem. 2011 Sep 28;59(18):9965-71. doi: 10.1021/jf202451q. Epub 2011 Aug 31.
The effects of white-rot and brown-rot fungal pretreatment on the chemical composition and thermochemical conversion of corn stover were investigated. Fungus-pretreated corn stover was analyzed by Fourier transform infrared spectroscopy and X-ray diffraction analysis to characterize the changes in chemical composition. Differences in thermochemical conversion of corn stover after fungal pretreatment were investigated using thermogravimetric and pyrolysis analysis. The results indicated that the white-rot fungus Irpex lacteus CD2 has great lignin-degrading ability, whereas the brown-rot fungus Fomitopsis sp. IMER2 preferentially degrades the amorphous regions of the cellulose. The biopretreatment favors thermal decomposition of corn stover. The weight loss of IMER2-treated acid detergent fiber became greater, and the oil yield increased from 32.7 to 50.8%. After CD2 biopretreatment, 58% weight loss of acid detergent lignin was achieved and the oil yield increased from 16.8 to 26.8%.
研究了白腐菌和褐腐菌预处理对玉米秸秆化学成分和热化学转化的影响。通过傅里叶变换红外光谱和 X 射线衍射分析对真菌预处理后的玉米秸秆进行分析，以表征化学成分的变化。通过热重和热解分析研究了真菌预处理后玉米秸秆热化学转化的差异。结果表明，白腐菌 Irpex lacteus CD2 具有很强的木质素降解能力，而褐腐菌 Fomitopsis sp. IMER2 则优先降解纤维素的无定形区。生物预处理有利于玉米秸秆的热分解。经 IMER2 处理的酸洗涤剂纤维的失重增加，油产量从 32.7%增加到 50.8%。经 CD2 生物预处理后，酸洗涤剂木质素的 58%重量损失，油产量从 16.8%增加到 26.8%。
