卷烟叶丝和梗丝主流烟气中挥发性及半挥发性成分差异分析  

Differences in volatile and semi-volatile mainstream cigarette smoke components by cut laminar strips and cut stems

作　　者：秦亚琼[1] 刘舒畅 罗诚 李东亮 贾云祯[1] 陈黎[1] 余晶晶[1] 王晓瑜[1] 王冰[1] 蔡君兰[1] 郭吉兆[1] 刘惠民[1] QIN Yaqiong;LIU Shuchang;LUO Cheng;LI Dongliang;JIA Yunzhen;CHEN Li;YU Jingjing;WANG Xiaoyu;WANG Bing;CAI Junlan;GUO Jizhao;LIU Huimin(Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China;Technology Center,China Tobacco Guizhou Industrial Co.,Ltd.,Guiyang 550009,China;Technology R&D Center,China Tobacco Sichuan Industrial Co.,Ltd.,Chengdu 610066,China)

机构地区：[1]中国烟草总公司郑州烟草研究院,郑州450001 [2]贵州中烟工业有限责任公司,贵阳市550009 [3]四川中烟工业有限责任公司技术中心,成都市610066

出　　处：《烟草科技》2019年第9期80-90,共11页Tobacco Science & Technology

基　　金：中国烟草总公司科技项目“烟梗内在成分与烟气成分特征研究”(110200102041)、“卷烟通风分配对烟气成分及感官质量风格影响规律研究”(110201603006)

摘　　要：为揭示叶丝和梗丝主流烟气中挥发性及半挥发性成分差异,采用气相色谱-质谱法(GC-MS)对叶丝及梗丝卷烟烟气中297种挥发性及半挥发性化合物进行了检测。通过主成分分析(PCA)和正交偏最小二乘法判别分析(OPLS-DA)对数据进行降维处理,同时结合t检验,筛选叶丝与梗丝烟气的差异化合物。结果表明:共筛选出53种差异化合物,在种类上,包括烃类、羧酸类、醇酚类、氮杂环类、醛酮类、呋喃类和酯类化合物,其中烃类、羧酸类、醇酚类和氮杂环类化合物占比较高;在相对比例上,有66%的化合物其叶丝烟气单位焦油释放量高于梗丝,其中42%的化合物高于梗丝2倍以上,个别化合物甚至在10倍以上。梗丝烟气中许多化合物的相对比例失调导致其呈现刺激性大、梗味重的烟气特征。该研究从分子水平上剖析了烟梗使用的制约因素,为其品质提升及科学利用提供了依据。In order to investigate the differences in volatile and semi-volatile mainstream cigarette smoke components caused by cut laminar strips and cut stems,a gas chromatography-mass spectrometry method was used to profile 297 components in gas and particulate phases of mainstream smoke.Principal component analysis(PCA)and orthogonal partial least squares discriminant analysis(OPLS-DA)were used to reduce the data dimensionality and combined with t test to screen the differential compounds in mainstream smoke containing cut laminar strips and cut stems.The results showed that a total of 53 compounds with distinct differences were found,including hydrocarbons,carboxylic acids,alcohols,phenols,nitrogen heterocycles,aldehydes,ketones,furans and esters.Among them,hydrocarbons,carboxylic acids,alcohols,phenols and nitrogen heterocycles accounted for a considerable proportion.On a relative release per unit tar basis,66%of the compounds in mainstream smoke of cut laminar strips were higher than those of cut stems,of which 42%of the compounds were 2 times or higher,and some even by more than 10 times.The relative imbalance of compounds in the smoke from cut stem cigarettes led to strong irritation and heavy stem smell.This work analyzed the restriction in the usage of tobacco stems at a mechanistic level,thus provided a scientific reference for cigarettes’sensory quality and tobacco utilization.

关 键 词：叶丝 梗丝 香味成分 主成分分析 正交偏最小二乘法判别分析 

分 类 号：TS411.2[农业科学—烟草工业]