烟草科技2019，Vol.52Issue(9)：80-90,11.
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
摘要
Abstract
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Key words
Cut laminar strip/Cut stem/Aroma component/PCA/OPLS-DA分类
轻工纺织引用本文复制引用
秦亚琼,蔡君兰,郭吉兆,刘惠民,刘舒畅,罗诚,李东亮,贾云祯,陈黎,余晶晶,王晓瑜,王冰..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[J].烟草科技,2019,52(9):80-90,11.基金项目
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). （110200102041）
