【作者】 陈芝飞； 杨靖； 马宇平； 孙志涛； 蔡莉莉； 郝辉； 贾春晓； 李成刚； 郑峰洋； 毛多斌；

【Author】 CHEN Zhifei;YANG Jing;MA Yuping;SUN Zhitao;CAI Lili;HAO Hui;JIA Chunxiao;LI Chenggang;ZHENG Fengyang;MAO Duobin;Technology Center,China Tobacco Henan Industrial Co.,Ltd.;School of Food and Biological Engineering,Zhengzhou University of Light Industry;

【机构】 河南中烟工业有限责任公司技术中心； 郑州轻工业学院食品与生物工程学院；

【摘要】 为探索卷烟主流烟气中重要碱性香气成分对彰显卷烟风格特征的作用和贡献程度,采用烟用香料作用阈值感官评价方法,评定了25种吡嗪和吡啶类重要碱性香气成分（25种碱性成分）的作用阈值,并以GC/MS法测定其在烟气中的释放量,获得活性阈值并进行数据分析。结果表明:（1）25种碱性成分的作用阈值介于1.00×10^-132.74×10^-5μg/支之间,2-甲基吡啶、2,6-二甲基吡啶、3-乙基吡啶和2-乙烯基吡啶的作用阈值较小,甲基吡嗪和2-乙酰基吡啶的作用阈值较大,作用阈值最高相差8个数量级。（2）主流烟气粒相物中25种碱性成分的总质量分数为11.130μg/支;其中,3-乙烯基吡啶和3-甲基吡啶的质量分数最高（2.784和2.476μg/支）,分别占总量的25.0%和22.2%;2,3-二甲基吡嗪等6种成分的质量分数较低,其和仅占总量的4.0%。（3）25种碱性成分的活性阈值范围介于1.20×10⁴².34×10¹²之间,总活性阈值为6.51×10¹²;3-乙基吡啶、2-甲基吡啶、2,6-二甲基吡啶和2-乙烯基吡啶的活性阈值高达3.05×1011～2.34×1012,其和占总活性阈值的99.9%。3-乙基吡啶、2-甲基吡啶、2,6-二甲基吡啶和2-乙烯基吡啶在彰显卷烟烘焙香香韵时作为关键成分起着决定性作用。更多还原

【Abstract】 In order to investigate the contribution of important basic aroma components in mainstream cigarette smoke to cigarette style characteristics,the activity thresholds of 25 important basic aroma components（pyrazines and pyridines） were obtained from their functional thresholds. The evaluation was conducted by sensory evaluation of functional thresholds for tobacco flavors and their releases in mainstream cigarette smoke as determined by GC/MS. The activity threshold data of 25 basic components were analyzed to pinpoint the important basic components in cigarette smoke demonstrating characteristic cigarette styles. The results showed that:1)The functional thresholds of the 25 basic components ranged from 1.00×10^-13 to 2.74×10^-5 μg·cig^-1;the levels of 2-methylpyridine,2,6-dimethylpyridine,3-ethylpyridine and 2-vinylpyridine were lower,while those of2-methylpyrazine and 2-acetylpyridine were higher. The maximum difference of functional threshold between these basic components reached eight orders of magnitude. 2)The total content of the 25 basic components inparticulate matter of mainstream smoke was 11.130 μ g·cig^-1,the contents of 3-vinylpyridine and3-methylpyridine were higher(2.784 and 2.476 μ g·cig^-1,and accounted for 25.0% and 22.2% of the total content,respectively). The contents of six basic components,such as 2,3-dimethylpyrazine,were lower,and the sum of their contents only accounted for 4.0% of the total content. 3) The activity thresholds of the 25 basic components ranged from 1.20 × 10⁴ to 2.34 × 10¹²,which was 6.51 × 1012 in total. The activity thresholds of3-ethylpyridine,2-methylpyridine,2,6-dimethylpyridine and 2-vinylpyridine were up to 3.05×10¹¹-2.34×10¹²,and the sum of which accounted for 99.9% of the total activity thresholds. These indicated that as key aroma components,the above four components played a decisive role in demonstrating the toasted aroma note of cigarette smoke.更多还原