不同产地烤烟特征香气物质的研究

为了解不同产地烟叶特征香气物质含量的差异,采用GC/MS测定方法,对国内8个烤烟产地初烤烟叶样品的6类烟叶致香物质的含量进行检测,并对检测数据进行方差分析。结果表明:(1)不同产地烤烟中性致香物质的含量有一定的差异,烤烟香型相同的产地之间,其特征香气物质的含量没有明显的趋同性,但还是有规律可循。(2)清香型烤烟产地的烟叶表面分泌物降解产物、醇类香气物及其他香气物的含量高于浓香型和中间型烤烟产地的烟叶。(3)烟叶表面分泌物降解产物、醛类香气物及叶绿素降解物的含量,以清香型烤烟产地的威宁为最高,6类致香物质中威宁有3种含量为最高值,居8个产区之首。

Characteristic Aroma Components in Flue-cured Tobacco from Different Areas

To investigate the content variance of characteristic aroma components in flue-cured tobacco from different areas, six kinds of aroma components of flue-cured tobacco samples from 8 tobacco production areas of China were analyzed with GC/MS method and the determined data were adopted in variance analysis. The results showed that: (1) the contents of neutral aroma components of flue-cured tobacco differed to a certain extent among different production areas, the contents of characteristic aroma components of flue-cured tobacco showed no obvious convergence among the production areas of the same flavor type tobacco, but there were still rules to follow; (2) the contents of surface secretion degradation products, alcohol aroma substances, as well as other aroma substances in the leaves from fresh flavor style tobacco production areas were higher than that in the leaves from full and medium flavor style tobacco production areas; (3) Weining, a typical fresh flavor style tobacco production area, had the highest contents of surface secretion degradation products and alcohol aroma substances; moreover, Weining had three maximum content values in these six kinds of aroma components, which made it the top one among these 8 production areas.