河南农业科学 ›› 2024, Vol. 53 ›› Issue (2): 171-180.DOI: 10.15933/j.cnki.1004-3268.2024.02.019

• 农业信息与工程·农产品加工 • 上一篇    

基于TG-FTIR-MS 技术的烟叶角质层热解行为研究

李亚玲1,马戎2,丁为3,冯文宁3,徐波1,梁淼4,刘玉斌2,刘伟3,王兵1,乔学义1
  

  1. (1.中国烟草总公司郑州烟草研究院,河南 郑州 450000;2.河北中烟工业有限责任公司,河北 石家庄 050000;3.四川中烟工业有限责任公司,四川 成都 610000;4.郑州轻工业大学 食品与生物工程学院,河南 郑州 450000)
  • 收稿日期:2023-09-18 出版日期:2024-02-15 发布日期:2024-03-20
  • 通讯作者: 王兵(1965-),男,河南安阳人,研究员,硕士,主要从事烟草加工工艺研究。E-mail:wangb@ztri.com.cn 乔学义(1981-),男,山西临汾人,副研究员,硕士,主要从事烟草加工工艺研究。E-mail:qiaoxueyiztri@126.com
  • 作者简介:李亚玲(1998-),女,湖南常德人,在读硕士研究生,研究方向:烟草工学。E-mail:liyaling21@mails.ucas.ac.cn
  • 基金资助:
    中国烟草总公司重点科技项目(110202102004,110202103007,110202103002)

Study on Pyrolysis Behavior of Tobacco Cuticle Based on TG⁃FTIR⁃MS

LI Yaling1,MA Rong2,DING Wei3,FENG Wenning3,XU Bo1,LIANG Miao4,LIU Yubin2,LIU Wei3,WANG Bing1,QIAO Xueyi1   

  1. (1.Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450000,China;2.China Tobacco Hebei Industrial Co.,
    Ltd.,Shijiazhuang 050000,China;3.China Tobacco Sichuan Industrial Co.,Ltd.,Chengdu 610000,China;4.College of Food and Bioengineering,Zhengzhou University of Light Industry,Zhengzhou 450000,China)
  • Received:2023-09-18 Published:2024-02-15 Online:2024-03-20

摘要: 为探究烟叶角质层热解行为及其在热解过程中气相产物释放规律,采用酶法、化学方法分离烟叶角质层,通过扫描电子显微镜和傅里叶红外光谱仪对其进行表征分析,利用热重-傅里叶红外光谱-质谱(TG-FTIR-MS)联用技术检测角质层的热释放行为和热解产物。结果表明,采用酶法和化学方法均可分离烟叶角质层,烟叶角质层的热解可分为失水(50~135℃)、快速脱挥发分(135~595℃)和碳化(595~900℃)3个阶段,其热解产生的气体成分主要包括CH4和CO2,气态产物多集中在300~600℃温度区间,其中以羧酸类化合物和甲苯居多。苯系物在250 ℃左右开始产生,在500 ~ 540 ℃温度区间内达到峰值,而尼古丁的生成量则相对较少。

关键词: 烟叶, 角质层, 分离, TG-FTIR-MS联用, 热解, 气态产物

Abstract: In order to study the pyrolysis behavior of tobacco cuticle and the release law of gaseous products during pyrolysis,the cuticle of tobacco leaves was separated by enzyme and chemical methods,and then were characterized by scanning electron microscope and Fourier infrared spectroscopy.The thermal release behavior and pyrolysis products of the cuticle were detected using TG⁃FTIR⁃MS coupling technology.The results showed that the cuticle could be separated by enzymatic and chemical methods.The pyrolysis of the cuticle could be divided into three stages:dehydration(50—135℃),rapid devolatilization(135—595℃)and carbonization(595—900℃).The main gas components produced by pyrolysis included CH4 and CO2,and the gas products were mainly concentrated in the temperature range of 300—600℃,among which the carboxylic acids and toluene were the most. With the increase of temperature,the production of benzene series began at about 250℃ and reached the peak at 500—540℃,while the production of nicotine was relatively smaller.

Key words: Tobacco leaf, Cuticle, Separation, TG?FTIR?MS, Pyrolysis, Gaseous products

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