昭通不同产区烤烟致香物质含量分析

    An analysis of the contents of aroma components in flue-cured tobacco in Zhaotong tobacco-growing areas

    • 摘要:
      目的 系统了解昭通不同产地烤烟致香成分含量的特点及差异.
      方法 对2011年昭通8个产地120个烤烟样品的中部叶(C3F等级)致香物质含量进行了多重比较和聚类分析.
      结果和结论 昭通不同产地烤烟中部叶有13种致香成分含量的差异未达到显著水平,有56种致香成分含量在0.05水平有显著性差异.除酮类致香物质外,醛类、醇类、酚类、杂环类、酯类、酸类致香物质和烯烃类含量在地域间均有显著性差异.基于官能团类别的聚类分析结果表明,昭通烤烟中部叶致香物质含量可分为4类:第1类为大关、彝良、镇雄3个产地烟叶;第2类为巧家、威信2个产地烟叶;第3类为鲁甸、昭阳2个产地烟叶;第4类为永善产地烟叶.昭通烟区不同产地烤烟中部叶致香物质含量的差异较大,有81.16%的烤烟致香成分含量差异达到了显著水平.在评价昭通烟叶致香物质时,不仅要考虑其致香物质总量,而且还要考虑致香物质的组成和比例.

       

      Abstract:
      Objective To understand the contents of aroma components in flue-cured tobacco in different tobacco-growing areas of Zhaotong.
      Method The central flue-cured tobacco leaves of 120 samples were collected from 8 tobacco-growing areas of Zhaotong. The aroma components of these samples were detected. These indexes were analyzed using multiple comparisons and cluster analysis.
      Result and conclusion At 0.05 level, there were no significant difference among 13 aroma components of samples, but there were significant differences among 56 aroma components of samples. Based on the functional groups aroma components, there were significant differences of aldehydes, alcohols, phenols, heterocyclic, esters, acids, olefins aroma contents of these samples except for ketene aroma content. Based on the functional groups of aroma components, the results of cluster analysis indicated that 8 tobacco tobacco-growing areas of Zhaotong could be classified into 4 types: The first type included Daguan, Yiliang and Zhenxiong areas; the second type included Qiaojia and Weixin areas; the third type included Ludian and Zhaoyang areas; the fourth type included Yongshan area. The contents of aroma components of samples in different tobacco-growing areas of Zhaotong were different, 81.16% of the aroma components of these samples were significantly different. When evaluating the content of aroma component in flue-cured tobacco of Zhaotong areas, not only the total aroma components in flue-cured tobacco but also the composition and proportion should be taken into consideration.

       

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