西北林学院学报2017，Vol.32Issue(2)：265-270,320,7.DOI:10.3969/j.issn.1001-7461.2017.02.46
木质素单体结构分析方法及在木材研究中的应用
Lignin Monomer Composition Analysis Method and Its Application in Wood
摘要
Abstract
In this paper,the current researches on lignin monomers analysis method,distributions and their applications were reviewed.Problems existed were put forward,development directions were pointed out.The current analysis techniques included chromatography and spectroscopy.The first technique has to be conducted after the degradation of lignin polymers in to lignin monomers by alkaline oxidation with nitrobenzene method,thioacidolysis method or derivatization followed by reductive cleavage (DFRC),and then the samples are analyzed by gas chromatography (GC) or gas chromatography/mass spectrometry (GC/ MS),the method is limited by selectivity and incompleteness of the degradation.Pyrolysis-GC/MS (PyGC/MS) is recognized as a quick and highly sensitive method to characterize the lignin fragments directly by powdered sample under high temperature without tedious pretreatments,and it has been widely used in lignin structure study.High performance liquid chromatography/mass spectrometry (HPLC/MS) is also proved to be a very effective tool and exhibits promising prospect.FITR and NMR technique can be directly used to test solid state sample and reveal lignin in nature state,especially the two-dimensional nuclear magnetic resonance (2D NMR).Chromatography and spectrum techniques make great contribution on this field of study,but there are still many aspects that need further to be upgraded.Because lignin macromolecule structures are very complex,further studies should still focus on controllable degradation,high monomer production rate and multi analysis methods.The composition proportions of three lignin monomers are different among different wooden materials,wood species,origin,parts and tissues,they are closely related to the wooden physical and mechanical properties,such as durability,suitably,and thus play an important role in directive breeding of fast grow wood.关键词
木质素/构造单元/S/G/降解法/色谱法/光谱法Key words
lignin/monomer/S/G/degradation/chromatography/spectrum分类
农业科技引用本文复制引用
于海霞,庄晓伟,潘炘,王进,张建,张文福..木质素单体结构分析方法及在木材研究中的应用[J].西北林学院学报,2017,32(2):265-270,320,7.基金项目
国家部局级重点科研项目“木地板坯料基材质量控制关键技术研究与示范”(201304501) （201304501）
浙江省院所专项“天然红豆杉木材材性及其防霉防腐处理技术研究”(2017F30015) （2017F30015）
浙江省林化创新团队“毛竹林光老化评价及防护技术研究”(2013TD17). （2013TD17）
