文献类型：期刊文献

英文题名：Effects of synergistic fungal pretreatment on structure and thermal properties of lignin from corncob

作者：You, Tingting[1] Li, Xin[1] Wang, Ruizhen[2] Zhang, Xueming[1] Xu, Feng[1]

第一作者：You, Tingting

通信作者：Xu, F[1]

机构：[1]Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2019

卷号：272

起止页码：123-129

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;Scopus(收录号：2-s2.0-85054600042);WOS:【SCI-EXPANDED(收录号:WOS:000451625700017)】；

基金：The authors gratefully acknowledge the financial support from the Fundamental Research Funds for the Central Universities (Project No.: BLX201718) and the National Key Research and Development Program of China (2017YFD0600204 and 2017YFD0601004).

语种：英文

外文关键词：Corncob; Fungal pretreatment; Lignin; Characterization; Pyrolysis behavior

摘要：Synergistic fungal pretreatment involving white-rot and brown-rot fugal pretreatment has shown great potential for enhancing the yield of sugars from biomass time-effectively and environmentally benign. In this work, the effects of this integrated fungal pretreatment on lignin characteristics and thermal behavior of corncob were examined in the view of whole plant valorization. The results show that an efficient deconstruction of lignin was achieved by white-rot fungus, and subsequent brown-rot fungus promoted the preferential breakdown of guaiacyl units, further enhancing lignin extraction efficiency (62.3%). Consequently, less phenolic hydroxyl, methoxyl, tricin, ester-linked p-coumaric acid, more carboxylic acid, ratio of syringyl to guaiacyl units, beta-O-4' linkage and molecular weight were found in W-BL. Thermal stability was improved and the increased phenol and alkyl-phenols contents in pyrolysis products demonstrated that synergistic fungal pretreatment definitely improved the lignin oil quality. These discoveries provide new insights into set strategy for microbial screening, pretreatment and lignin processing.