合肥工业大学学报自科版

合肥工业大学学报(自然科学版)

JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE)

主管：中华人民共和国教育部

主办：合肥工业大学

ISSN 1003-5060, CN 34-1083/N

烟草木质素化学结构与热解行为的相关性研究

下载全文

A correlation study between chemical structure and pyrolytic behavior of tobacco lignin

期刊信息

合肥工业大学（自然科学版），2026年5月，第49卷第5期：687-693，702

DOI: 10.3969/j.issn.1003-5060.2026.05.016

作者信息

刘浩 $ ^{1,2} $，张文成 $ ^{1,2} $，周冰莹 $ ^{1,2} $，余世科 $ ^{3} $，徐志强 $ ^{3} $，胡永华 $ ^{3} $

（1. 合肥工业大学食品与生物工程学院，安徽合肥 230601；2. 农产品生物化工教育部工程研究中心，安徽合肥 230601；3. 安徽中烟工业有限责任公司技术中心，安徽合肥 230088）

摘要和关键词

摘要: 为了揭示烟草木质素结构与热解特性之间的关联,文章采用碱提法、醇提法以及磨木法提取烟草木质素,使用傅里叶变换红外光谱(Fourier transform infrared spectroscopy, FTIR)和二维异核单量子核磁共振波谱(2D heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy, 2D HSQC NMR)对获得的烟草木质素的结构进行表征。结果显示,烟草木质素均含有愈创木基(G)、紫丁香基(S)和少量的对羟基苯丙烷基(H),主要侧链为 $ \beta $-O-4'和 $ \beta-\beta' $键,其中,磨木木质素(milled wood lignin, MWL)保持了最完整的原始化学结构,而碱提法和醇提法对天然木质素中的结构单元造成了不同程度的破坏。此外,文章分析了3种烟草木质素的热解产物,发现碱提木质素(alkaline lignin, AL)和MWL木质素的酚类质量分数高于醇提木质素(alcoholic lignin, OL),热解产物中G型酚类质量分数最高,随着温度上升,C型和P型酚类的质量分数也呈现增加的趋势;热解过程以脱羧和脱水反应为主导,且 $ n(\mathrm{H})/n(\mathrm{C}) $和 $ n(\mathrm{O})/n(\mathrm{C}) $随温度升高而减小。该研究提出的烟草木质素裂解可能路径对深入理解木质素的热解机理和调控卷烟烟气具有重要的理论和实践意义。

关键词: 烟草；木质素；酚类；结构解析；热解产物

Authors

LIU Hao $ ^{1,2} $, ZHANG Wencheng $ ^{1,2} $, ZHOU Bingying $ ^{1,2} $, SHE Shike $ ^{3} $, XU Zhiqiang $ ^{3} $, HU Yonghua $ ^{3} $

(1. School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China; 2. Engineering Research Center of Bio-process, Ministry of Education, Hefei 230601, China; 3. Technology Center, China Tobacco Anhui Industrial Co., Ltd., Hefei 230088, China)

Abstract and Keywords

Abstract: The objective of this research was to elucidate the relationship between the structural characteristics and pyrolytic properties of tobacco lignin. Tobacco lignins were extracted using a combination of alkaline lignin extraction, alcoholic lignin extraction, and milled wood lignin techniques. The structural characterization of the lignins was performed using Fourier transform infrared spectroscopy (FT-IR) and 2D heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy (2D HSQC NMR). The results demonstrated that all tobacco lignins contained guaiacyl(G), syringyl(S) and a minor quantity of p-hydroxyphenylpropyl(H), with the principal side chains being $ \beta $-O-4' and $ \beta $- $ \beta' $ bonds. Among these, milled wood lignin(MWL) exhibited the most intact primitive chemical structure of lignin, whereas alkaline lignin and alcoholic lignin extractions caused varying degrees of destruction of structural units in natural lignin. Furthermore, the pyrolysis products of the three tobacco lignins were analyzed, and it was found that the phenolic content of alkaline lignin(AL) and MWL was consistently higher than that of alcoholic lignin(OL). The content of G-type phenolics was the

Keywords: tobacco; lignin; phenols; structural analysis; pyrolysis product

基金信息

安徽省重点研究与开发计划资助项目（202204c06020075）；中国烟草总公司基金资助项目（110202102024）

前一篇后一篇

返回期刊目录