纤维素、半纤维素与木质素间相互作用研究进展

Research Progress on the Interaction Among Cellulose, Hemicellulose, and Lignin

关键词:  纤维素  半纤维素  木质素  植物细胞壁结构  分子相互作用

Key Words:cellulose  hemicellulose  lignin  plant cell wall architecture  molecular interactions

摘要:纤维素、半纤维素和木质素是木质纤维生物质细胞壁中的3种主要组分，其通过复杂的相互作用形成超分子网络结构，使木质纤维生物质具有优异的机械性能及抵抗物理、化学和微生物降解的能力，同时也导致生物质预处理和组分分离困难。本文总结了近年来关于纤维素、半纤维素与木质素间相互作用的研究进展，重点介绍了木质素与半纤维素之间的共价键、范德华力和静电作用等，以期在原子-分子水平上充分认识和了解细胞壁结构，为通过基因工程合成易降解的木质纤维原料，或寻找清洁高效的生物质精炼技术提供一定的理论指导。

Abstract:Cellulose， hemicellulose， and lignin are the three main components in the cell walls of woody fiber biomass， which intricately interact to form supramolecular network structure through complex interactions， conferring lignocellulosic biomass exceptional mechanical properties and resistance to physical， chemical， and microbial degradation， and contributing to challenges in biomass pretreatment and component separation at the same time. In this paper， a comprehensive overview of recent academic reaserches in understanding the interactions among cellulose， hemicellulose， and lignin was provided. In addition， covalent bonding， van der Waals force， and electrostatic interaction between lignin and hemicellulose were highlighted， in the hope of fully understanding and appreciating the cell wall structure at the atomic-molecular level， and providing little theoretical guidance for the genetic engineering of easily degradable wood fiber feedstocks and the exploration of clean and efficient biomass refining technologies.