| 218 | 0 | 232 |
| 下载次数 | 被引频次 | 阅读次数 |
【目的】分析再造梗丝在制品的化学成分、微观结构和热解特性变化规律。【方法】以关键工序再造梗丝在制品为研究对象，利用成分分析及热重分析等技术研究再造梗丝在加工过程中的理化性质变化规律。【结果】(1)再造梗丝在加工过程中的化学成分含量变化较大，原梗经浸提和气流干燥后，总糖、总氮、烟碱含量显著降低，纤维素含量升高，料液回填后样品的纤维素和半纤维素相对含量均降低，总糖和还原糖含量增加。(2)提取和二级气流干燥后样品较原梗色差值变化明显，但成品再造梗丝能够保持与原始梗丝相似的色泽外观；SEM和BET显示二级气流干燥对在制品的微观孔隙结构有显著的膨胀作用。(3)再造梗丝在制品的热失重过程可分为5个阶段，各样品的阶段失重温度区间和失重率差异明显。提取和二级气流干燥样品在阶段Ⅱ和Ⅲ的失重率均较低，料液回填后样品阶段Ⅱ的失重率与原始梗丝较接近；各样品均在第Ⅳ失重阶段表现出最高的失重速率，提取和二级气流干燥样品阶段Ⅳ的最大失重速率较高，且具有较高的Ti和Tf；成品的综合热解指数高于原始梗丝样品，综合热解特性有所提升。(4)各再造梗丝在制品主要失重阶段的热解过程均符合F1.5级化学反应控制模型，工序加工会影响样品同一失重阶段的热解动力学参数。
Abstract：[Objective] This study aims to analyze the chemical composition, microstructure, and thermal decompose characteristics of reconstituted tobacco cut stem. [Methods] The study focused on key production processes of reconstituted tobacco stems, utilizing composition analysis and thermogravimetric analysis to explore the changes in physicochemical properties during processing. [Results](1)The chemical composition of reconstituted tobacco stems significantly changed during processing. After extraction and airflow drying, the contents of total sugar, total nitrogen, and nicotine decreased significantly, while the cellulose content increased. After the reapplication of the extracted liquid, the relative contents of cellulose and hemicellulose decreased, and the total and reducing sugars increased.(2) The color difference value of the samples after extraction and secondary airflow drying changed significantly compared to the raw stems, but the final reconstituted stems retained a color appearance similar to that of the original stems. SEM and BET analyses showed that secondary airflow drying significantly expanded the micro-porous structure of the in-process samples.(3) The thermal decompose weight loss process of reconstituted tobacco cut stem can be divided into five stages, with notable differences in the temperature range and weight loss rate of each stage. The samples after extraction and secondary airflow drying showed lower weight loss rates in stages Ⅱ and Ⅲ, while the sample after reapplying the extracted liquid had a weight loss rate in stage Ⅱ closer to that of the raw stems. All samples showed the highest weight loss rate in the Ⅳ, with the extracted and secondary airflow-dried samples showing higher maximum weight loss rates and higher Ti and Tf values. The overall pyrolysis index of the final product was higher than that of the raw stems, indicating an improvement in comprehensive pyrolysis characteristics.(4) The thermal decomposition process of the main weightless stages of the reconstituted tobacco cut stem during the production process conformed to the F1.5 chemical reaction control mechanism, and the processing steps affect the thermal decomposition kinetic parameters of the samples during the same weight loss stage.
[1]陈兴，申晓锋，巩效伟，等.提升梗丝品质技术研究进展[J].安徽农业科学，2013, 41(05):2274-2276.CHEN Xing, SHEN Xiaofeng, GONG Xiaowei, et al. Research progress of quality improvement technique of tobacco cut stem[J].Journal of Anhui Agricultural Sciences, 2013, 41(05):2274-2276.
[2]周雅宁.烟梗加工处理技术与设备研究进展[J].中国烟草学报，2019, 25(02):121-129.ZHOU Yaning. Research progress in tobacco stem processing technology and equipment[J]. Acta Tabacaria Sinica, 2019, 25(02):121-129.
[3]谷超林，崔龙吉，刘文春，等.再造梗丝与普通梗丝使用性能对比研究[J].安徽农业科学，2018, 46(18):171-173+193.GU Chaolin, CUI Longji, LIU Wenchun, et al. Comparative study on performance of constituted cut stem and cut stem[J]. Journal of Anhui Agricultural Sciences, 2018, 46(18):171-173+193.
[4]张洪飞，刘广洲，王永金.梗丝再造技术综述[J].轻工科技，2018,34(11):21-22+36.ZHANG Hongfei, LIU Guangzhou, WANG Yongjin, et al. A review of reconstituted cut stem[J]. Light Industry Science and Technology, 2018, 34(11):21-22+36.
[5]李汉超，王淑娴.烟草、烟气化学及分析[M].河南科学技术出版社，1991.LI Hanchao, WANG Shuxian. Tobacco, smoke chemistry and analysis[M]. Henan Science and Technology Press, 1991.
[6]蒋宇凡，徐光忠，俞京，等.利用色差测定再造梗丝回填率[J].中国烟草学报，2018, 24(01):21-27.JIANG Yufan, XU Guangzhong, YU Jing, et al. Determination of backfilling ratio of reconstituted cut stem by chromatic aberration method[J]. Acta Tabacaria Sinica, 2018, 24(01):21-27.
[7]黄飞，刘金霞，李宝志，等.再造梗丝料液储存期间质量变化研究[J].广东化工，2016, 43(21):42-43+55.HUANG Fei, LIU Jinxia, LI Baozhi, et al. Study on the quality change of the reconstituted tobacco stem liquid feed during storage[J]. Guangdong Chemical Industry, 2016, 43(21):42-43+55.
[8] Sluiter A, Hames B, Ruiz R O, et al. Determination of structural carbohydrates and lignin in biomass[J]. Laboratory Analytical Proce dure, 2004.
[9] YC/T 159—2019烟草及烟草制品水溶性糖的测定连续流动法[S].YC/T 159-2019 Tobacco and tobacco products─Determination of water soluble sugars─Continuous flow method[S].
[10] YC/T 161—2002烟草及烟草制品总氮的测定连续流动法[S].YC/T 161-2002 Tobacco and tobacco products—Determination of total nitrogen—Continuous flow method[S].
[11] YC/T 383—2010烟草及烟草制品烟碱、降烟碱、新烟碱、麦斯明和假木贼碱的测定气相色谱-质谱联用法[S].YC/T383-2010 Tobacco and tobacco products—Determination of nicotine, nornicotine, myosmine and anabasine-GC-MSD method[S].
[12]祁林，唐习书，刘静，等.不同长度梗丝色度值与致香成分的变化及相关性分析[J].云南农业大学学报（自然科学），2021,36(04):648-653.QI Lin, TANG Xishu, LIU Jing, et al. Variations and correlation analysis of chromaticity values and aroma components in different length cut stems[J]. Journal of Yunnan Agricultural University(Natural Science), 2021, 36(04):648-653.
[13] Takagi H, Isoda T, Kusakabe K, et al. Relationship between pyrolysis reactivity and aromatic structure of coal[J]. Energy Fuels,2000, 14:646-653.
[14] Fan Y, Li L, Tippayawong N, et al. Quantitative structure-reactivity relationships for pyrolysis and gasification of torrefied xylan[J].Energy, 2019, 188:116119.
[15]夏鸣，李金广，乔国宝，等.烤烟的燃烧特性及动力学分析[J].烟草科技，2012(11):38-41+50.XIA Ming, LI Jinguang, QIAO Guobao, et al. Combustion characteristics of flue-cured tobacco and its kinetic analysis[J].Tobacco Science&Technology, 2012(11):38-41+50.
[16]李强，张果，李俊，等.不同形态梗丝的热解燃烧特性及动力学参数差异分析[J].轻工学报，2022, 37(03):94-100.LI Qiang, ZHANG Guo, LI Jun, et al. Study on the pyrolysis/combustion characteristics and reaction kinetics parameters of cut stems with different morphology[J]. Journal of Light Industry,2022, 37(03):94-100.
[17]郭高飞，刘朝贤，李斌，等.烟粉和烟丝的热解燃烧特性及反应动力学分析[J].烟草科技，2019, 52(06):90-98.GUO Gaofei, LIU Chaoxian, LI Bin, et al. Investigation on pyrolysis/combustion characteristics and reaction kinetics of tobacco strands and tobacco powder[J]. Tobacco Science&Technology, 2019, 52(06):90-98.
[18]娄瑞，武书彬，吕高金，等.草本类木素的化学结构与热化学性质[J].华南理工大学学报（自然科学版），2010, 38(08):1-6.LOU Rui, WU Shubin, LV Gaojin, et al. Chemical Structure and thermochemical properties of lignin from herbaceous plant[J].Journal of South China University of Technology(Natural Science Edition), 2010, 38(08):1-6.
[19]王南涛，詹昊，庄修政，等.人造板废弃物烘焙热解特性研究[J].太阳能学报，2021, 42(12):283-291.WANG Nantao, ZHAN Hao, ZHUANG Xiuzheng, et al. Research on torrefaction pyrolysis chanrcteristics of wood-based panel waste[J]. Acta Energiae Solaris Sinica, 2021, 42(12):283-291.
[20]宋丽丽，魏涛，杨旭，等.烟梗结构特征及其热解特性研究[J].轻工学报，2020, 35(06):27-34.SONG Lili, WEI Tao, YANG Xu, et al. Study on structural and thermal decomposition characteristics of tobacco stem[J]. Journal of Light Industry, 2020, 35(06):27-34.
[21]王莉，王驰，葛少林，等.再造烟叶的纤维和组织微观结构及热解性能分析[J].烟草科技，2016, 49(10):66-73.WANG Li, WANG Chi, GE Shaolin, et al. Analysis of fiber,microstructure and pyrolysis performance of reconstituted tobacco[J].Tobacco Science&Technology, 2016, 49(10):66-73.
[22]王鹏.碳酸钙—草酸钾活化制备烟梗基多孔炭及其吸附性能研究[D].华南理工大学，2023.WANG Peng. Preparation of tobacco stem-based porous carbon by calcium carbonate-potassium oxalate activation and its adsorption properties[D]. South China University of Technology, 2023.
[23]张果，岳先领，叶建斌，等.不同涂布率再造烟叶的热解特性及动力学分析[J].食品与机械，2021, 37(05):39-46.ZHANG Guo, YUE Xianling, YE Jianbin, et al. Thermal pyrolysis characteristics and kinetics study of reconstituted tobacco with different coating rates[J]. Food&Machinery, 2021, 37(05):39-46.
[24] Sung Y J, Seo Y B.Thermogravimetric study on stem biomass of Nicotiana tabacum[J]. Thermochimica Acta, 2009, 486(1):1-4.
[25]童保云，张晓宇，孔俊，等.烤烟烟叶叶片及其烟梗的热分解过程和动力学[J].烟草科技，2013(12):54-58.TONG Baoyun, ZHANG Xiaoyu, KONG Jun, et al. Comparison of pyrolysis process and kinetics between tobacco lamina and stem with thermogravimetric analysis[J]. Tobacco Science&Technology,2013(12):54-58.
基本信息:
DOI：10.16472/j.chinatobacco.2023.T0244
中图分类号:TS452
引用信息:
[1]任瑞冰,胡亚宁,刘友杰等.再造梗丝生产过程中的化学成分、微结构和热解特性变化研究[J].中国烟草学报,2025,31(02):1-9.DOI:10.16472/j.chinatobacco.2023.T0244.
基金信息:
吉林烟草工业有限责任公司科技计划项目“再造梗丝回填料液的自主开发与应用研究”（KJXM-2023-11）