4种菌纹木降解程度的偏光荧光与红外光谱分析  

Degradation Analysis of 4 Species of Spalted Wood by Polarized and Fluorescent Light and FTIR

作　　者：甘昌涛[1] 何海珊 李君 郭梦麟[4] 邱坚 Gan Changtao;He Haishan;Li Jun;Kuo Monlin;Qiu Jian(College of Art and Design,Southwest Forestry University,Kunming Yunnan 650233,China;College of Materials Science and Engineering,Southwest Forestry University,Kunming Yunnan 650233,China;Yunnan Provincial Key Laboratory of Wood Adhesives and Glue Products,Kunming Yunnan 650233,China;Iowa State University,Ames Iowa IA50011,U.S.A.)

机构地区：[1]西南林业大学艺术与设计学院,云南昆明650233 [2]西南林业大学材料科学与工程学院,云南昆明650233 [3]云南省木材胶黏剂及胶合制品重点实验室,云南昆明650233 [4]爱荷华州立大学,爱荷华州埃姆斯市IA50011

出　　处：《西南林业大学学报（自然科学）》2020年第2期155-160,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家自然科学基金面上项目(31270601)资助。

摘　　要：以菌种Phomopsis sp.J9-1人工培育12周所得杨木、西南桤木、西南桦、松木4种木材的菌纹木为研究对象,进行偏光、荧光显微镜观察和红外光谱分析。结果表明:红外光谱分析发现4种菌纹木化学成分均有不同程度的变化,杨木和西南桤木半纤维素、纤维素官能团有一定程度的降解,而木质素官能团均有不同程度的降解,杨木和松木菌纹木部分木质素骨架结构和侧链被降解,西南桤木和西南桦菌纹木木质素仅侧链官能团被部分降解。以偏光和荧光显微镜观察,4种菌纹木检测不到明显腐朽现象,木材的基本解剖构造没有显著变化,因此能满足多种家居装饰、工艺品制作的要求。This research observed spalted wood(Populus sp.,Alnus nepalensis,Betula alnoides,Pinus sp.)that had inoculated by Phomopsis sp.J9-1 and cultured for 12 weeks by polarized&fluorescent light and infrared spectroscopy.FTIR spectral analysis indicate all of the 4 species of spalted wood were degraded in different degree,a small quantity of degradation of cellulose or hemicelluloses have only occured in Populus sp.and Alnus nepalensis,the changes of functional groups of lignin have been found in every spalted wood,the aromatic rings and side chains of lignin in Populus sp.and Pinus sp.were partly degraded,slight degradation of side chains of lignin shown in Alnus nepalensis and Betula alnoides.There were no evident degradation and no significant changes of cell elements and chemicals in all spalted wood through polarized and fluorescent light,so the spalted wood can satisfy the conditions of decoration and artwork.

关 键 词：菌纹木 降解 微观构造 红外光谱 偏光荧光 

分 类 号：S781[农业科学—木材科学与技术]