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为了比较不同产地不同香型烟叶风格特征的差异,应用闭环回路气提法(Closed-Loop Stripping Analysis,CLSA)对我国5大烟叶产区(黄淮、东南、西南、长江中上游、北方)3种不同香型122个C3F等级烟叶进行挥发、半挥发成分指纹图谱研究;结合组分对香型的贡献性、烟叶中的含量及试验结果的重复性,选取20种挥发、半挥发性成分作为检测对象,采用判别分析方法(Discriminant Analysis,DA)对其含量差异进行了比较分析。结果表明:挥发、半挥发成分与香型及产地关系明显,同香型不同产地差异很大,①浓香型烟叶整体挥发、半挥发成分含量较高,香味物质含量较突出,但是新植二烯含量在3种香型中最低,东南、黄淮两大产区差异较大。②中间香型挥发、半挥发成分没有较为突出的个性特征,整体上,北方产区与其他产区差异明显。③清香型烟叶中的新植二烯含量为3种香型中最高,是清香特色的主要因素之一,福建地区与云南、四川等地差异较大:
In order to compare the differences in flavor characteristics of different fragrant tobacco leaves from different habitats, the authors used the Closed-Loop Stripping Analysis (CLSA) to analyze the characteristics of the tobacco leaves in the five major tobacco producing regions of China (Huanghuai, southeast, southwest, middle and upper reaches of the Yangtze River, north) The volatile and semi-volatile component fingerprints of 122 species of C3F tobacco with different fragrance types were studied. Based on the contribution of components to flavor, the content of tobacco and the repeatability of test results, 20 volatile and semi-volatile components were selected as The subjects were tested for differences in content by Discriminant Analysis (DA). The results showed that the relationship between volatile and semi-volatile components had obvious relationship with the aroma type and the origin, and there were great differences between the two types. (1) The whole volatile and semi-volatile components of the aroma-type tobacco had a higher content of aroma components, The content of olefins is the lowest among the three kinds of scent, while the southeast and Huanghuai differ greatly. ② intermediate flavor volatile, semi-volatile components are not more prominent personality traits, on the whole, the northern producing areas and other producing areas significantly different. ③ The content of neophytadiene in the fragrant tobacco was the highest among the three kinds of scent, which was one of the main factors of the fragrance characteristics. There was a big difference between Fujian and Yunnan, Sichuan and other places: