Department of New Energy Materials & Engineering, College of Materials & Metallurgy, Guizhou University, West Campus, Huaxi District, Guiyang, China.
Bioenergy Division, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, CAS, 457# Zhongshan Road, Dalian, China.
Bioresour Technol. 2018 Dec;270:537-544. doi: 10.1016/j.biortech.2018.09.083. Epub 2018 Sep 18.
The dissolution of corn stover was investigated in gamma-valerolactone (GVL) assisted by ionic liquids. An enhanced subsequent enzymatic saccharification was reached with a total reducing sugar yield of 0.69 g.g and a glucose of 0.38 g.g within 24 h. The treatment effects on the physical-chemical features of corn stover in terms of the natural recalcitrance to the subsequent biological digest were systematically investigated using composition analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The structures of the associated enzymatic hydrolysis lignin (EHL) and ionic liquid extracted lignin (IEL) were characterized by gel permeation chromatography (GPC), fourier transform infra-red spectroscopy (FTIR), phosphorous nuclear magnet resonance spectrometry (P NMR), and heteronuclear single quantum coherence spectroscopy (HSQC) for an in-depth understanding of the delignification process and the basic structural information for further lignin valorization.
采用离子液体辅助γ-戊内酯（GVL）对玉米秸秆进行溶解研究。在 24 小时内，总还原糖产率达到 0.69g.g，葡萄糖产率达到 0.38g.g，实现了后续酶解糖化的增强。通过组成分析、X 射线衍射（XRD）、扫描电子显微镜（SEM）和原子力显微镜（AFM），系统研究了处理对玉米秸秆物理化学特性的影响，这些特性对后续生物消化的天然抗降解性有重要影响。通过凝胶渗透色谱（GPC）、傅里叶变换红外光谱（FTIR）、磷核磁共振谱（P NMR）和异核单量子相干谱（HSQC）对相关酶解木质素（EHL）和离子液体提取木质素（IEL）的结构进行了表征，以便深入了解脱木质素过程和基本结构信息，从而实现木质素的增值利用。
