不同等级烤烟烟叶主要化学成分分析

Analysis of the Main Chemical Constituents of Different Grades of Roasted Tobacco Leaves

摘要: 为进一步探索不同等级烟叶内在化学成分质量特征，为曲靖卷烟厂烟叶原料加工使用提供参考依据。试验通过对不同等级烟叶常规化学成分进行测定分析，对比研究不同等级烟叶化学成分差异。研究表明，相同部位，柠檬色烟叶烟碱含量、总氮含量低于橘黄色烟叶。各等级烟叶总糖含量都稍高于优质烤烟指标范围。正组烟叶除了上部、中部柠檬色烟叶烟碱含量、总氮含量偏低而外，其余正组等级烟叶各项化学成分都达到或比较接近优质烤烟指标范围，且各重复处理间稳定性较好。副组烟叶相较于正组烟叶各重复处理间变异系数较大，质量不稳定，相较优质烤烟指标范围，烟碱、总氮、总糖和淀粉含量偏高，钾氯比值偏低。

Abstract: In order to further explore the intrinsic chemical composition quality characteristics of different grades of tobacco, and to provide a reference basis for the processing and use of tobacco raw mate-rials in Qujing Cigarette Factory, the test was carried out by measuring and analyzing the conven-tional chemical composition of different grades of tobacco. The experiment was conducted to com-pare the differences in chemical composition of different grades of tobacco by measuring and ana-lyzing the conventional chemical composition of different grades of tobacco. The study showed that the nicotine content and total nitrogen content of lemon-colored tobacco were lower than those of orange-colored tobacco in the same part. The total sugar content of all grades of tobacco was slightly higher than the index range of high-quality roasted tobacco. Except for the upper and middle lem-on-colored tobacco with low nicotine and total nitrogen content, all the other grades of the main group reached or were closer to the index range of high-quality roasted tobacco, and the stability among the replicated treatments was good. The coefficient of variation among the replicated treat-ments was larger and the quality was unstable, and compared with the index range of high-quality roasted tobacco, the contents of nicotine, total nitrogen, total sugar and starch were higher, and the potassium-chlorine ratio was lower.