不同产区浓香型与清香型烤烟内在化学成分含量分析

为了揭示影响烤烟香型风格的主要化学特性指标,研究以湖南郴州、河南许昌、云南文山和福建三明4个烟区的烟叶作为浓香型和清香型烟叶的代表,对烟叶的内在化学成分含量进行了比较分析.结果表明,湖南郴州和河南许昌两个烟区的浓香型烟叶在总糖和烟碱含量上的差异不明显,云南文山和福建三明两个烟区的清香型烟叶在总氮含量上没有差异,这表明总糖和烟碱是浓香型烟叶的决定因素,而总氮含量是清香型烟叶的决定因素.湖南郴州和河南许昌为代表的浓香型烟叶与云南文山和福建三明为代表的清香型烟叶在化学指标上总糖、还原糖、烟碱、糖碱比和两糖差均达到极显著差异（P＜0.01）,表明浓香型与清香型烟叶的差异主要表现在糖和烟碱上,低糖和低碱成为浓香型的烟叶特色.

Comparative Analysis on Chemical Properties between Strong-flavor Style and Fan-flavor Style Flue-Cured Tobacco in Different Areas

In order to reveal the chemical properties which affect the aromatic style of the tobacco, the tobacco from the city of Chenzhou in Hunan and Xuchang in Henan was chosen to represent the strong-flavor style flue-cured tobacco, and the fen-flavor style flue-cured tobacco from the city of Baoshan in Yunnan and Sanming in Fujian, comparative analysis were made in the chemical properties of the tobacco. The results showed no significant difference between Chenzhou and Xuehang in total sugar as well as nicotine content, while no difference between Baoshan and Sanming in total nitrogen content. It can come to a conclusion that total sugar and nicotine are the determining factors for strong-flavor style flue-cured tobacco and total nitrogen is the determining factor for fan-flavor style flue-cured tobacco. Besides, the two compare groups were significantly different （P 〈0.01） in total sugar, reducing sugar, nicotine, the ratio of total sugar to nicotine, and differences between total sugar and reducing sugar. All that showed sugar and nicotine were the main difference between the two kinds of tobacco and low-sugar and low- nicotine were the characteristics of strong-flavor style flue-cured tobacco.