林产化学与工业2024，Vol.44Issue(6)：160-166,7.DOI:10.3969/j.issn.0253-2417.2024.06.018
毛白杨早材与晚材细胞壁区域木质素分布特性
Lignin Distribution in Cell Wall Region of Early and Late Wood of Populus tomentosa Carrière
摘要
Abstract
In this study,the distribution of lignin in the earlywood and latewood cell wall regions of Populus tomentosa Carrière was investigated by laser scanning confocal microscopy and Raman spectroscopy.The results showed that the distribution of lignin in earlywood and latewood cell wall showed obviously uneven distributed,and the order of lignin concentration from high to low was cell corner middle lamella(CCML),compound middle lamella(CML)and secondary wall(SW).The ratio of lignin concentration ratio(early wood/latewood)were 0.76 for the inner SW,1.32 for the middle SW,1.39 for the CML and 1.45 for the CCML,which followed the pattern of SW＜CML＜CCML.In addition,the dissolution behavior of cell wall lignin in earlywood and latewood treated with deep eutectic solvent(DES)was investigated.The results showed that lignin removal was more significant in SW than CCML and CML region of earlywood,while the lignin removal in CCML and CML region of latewood was more significant than that in SW.关键词
早材/晚材/激光拉曼光谱/细胞壁/区域木质素分布/低共熔溶剂Key words
earlywood/latewood/Raman spectroscopy/cell wall/regional lignin distribution/DES分类
化学化工引用本文复制引用
周士乐,武书彬..毛白杨早材与晚材细胞壁区域木质素分布特性[J].林产化学与工业,2024,44(6):160-166,7.基金项目
国家自然科学基金资助项目(32271807) （32271807）
