甘油对叶丝等温热失重及关键成分释放特性的影响  

Effects of glycerol on isothermal thermogravimetric behavior and release characteristics of key chemical components from cut tobacco strips

作　　者：吴键[1] 尹洁[1] 陈震[1] 王骏[1] 鲁端峰[2] 肖卫强[1] 赵路灿 李斌[2] 蒋健[1] 王乐[2] WU Jian;YIN Jie;CHEN Zhen;WANG Jun;LU Duanfeng;XIAO Weiqiang;ZHAO Lucan;LI Bin;JIANG Jian;WANG Le(Technology Center,China Tobacco Zhejiang Industrial Co.,Ltd.,Hangzhou 310008,China;Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China)

机构地区：[1]浙江中烟工业有限责任公司技术中心,杭州市310008 [2]中国烟草总公司郑州烟草研究院,郑州450001

出　　处：《烟草科技》2024年第1期74-83,共10页Tobacco Science & Technology

基　　金：国家烟草专卖局重大科技项目“天然烟叶型加热卷烟产品叶组配方技术研究与应用”[110202201048(XX-07)]。

摘　　要：为研究甘油对加热卷烟叶丝等温热失重行为及关键成分热释放特性的影响,利用宏量烟草高温热转化热重分析仪,研究了不同甘油含量加热卷烟叶丝在200℃的等温热失重行为,并对失重过程中甘油、烟碱、水分及其他成分的热释放特性进行了分析。结果表明,甘油的添加对叶丝等温热失重行为产生了显著影响。随着甘油的加入,失重曲线发生明显变化,表明热降解过程发生了改变。同时,甘油的存在也影响了关键成分的释放特性。在实验条件范围内提高甘油含量(0~13.35%),会增加叶丝失重率和失重速率,延长叶丝预热时间,并降低叶丝成分释放过程的稳定性,叶丝失重率从18.14%增加至23.79%;提高了烟碱释放比例和释放速率,烟碱释放比例从95.62%增加至96.49%;降低了甘油、水分和其他成分的释放比例和速率,其中甘油释放比例从88.69%降至80.20%,水分释放比例从82.13%降至64.03%,其他成分释放比例从15.82%降至12.63%;叶丝中的甘油、烟碱和其他成分的热释放速率均呈现先升速后降速的趋势,而水分则相反。To investigate the effects of glycerol on the isothermal thermogravimetric behavior of cut tobacco strips and the thermal release characteristics of key components in heated tobacco products,a macro-thermogravimetric analyzer was used to study the isothermal thermogravimetric behavior of cut strips with varying glycerol contents at 200℃,and the thermal release characteristics of glycerol,nicotine,moisture,and other components during the weight loss process were analyzed.The results showed a significant effect of glycerol addition on the isothermal thermogravimetric behavior of the cut strips.The presence of glycerol resulted in noticeable changes in the weight loss curve,indicating a shift in the thermal degradation process.Glycerol also affected the release characteristics of the key components.Increasing the glycerol content within the experimental range of 0-13.35%resulted in higher weight loss ratio and weight loss rate of the cut strips,longer preheating time of the cut strips,and decreased stability of the component release process.The weight loss ratio of the cut strips increased from 18.14%to 23.79%.The proportion of nicotine release increased from 95.62%to 96.49%with a higher release rate.However,both the release proportions and the release rates of glycerol,moisture and other components decreased.Specifically,the glycerol release proportion decreased from 88.69%to 80.20%,moisture from 82.13%to 64.03%,and other components from 15.82%to 12.63%.The thermal release rates of glycerol,nicotine and other components in the cut strips first increased and then decreased,while moisture showed an opposite trend.

关 键 词：甘油 加热卷烟 宏量热重 等温热失重 化学成分 释放特性 

分 类 号：TS452[农业科学—烟草工业]