重庆烟区K326上部烟叶烘烤工艺研究

The Study on Curing Technique at Upper Leaves of Flue-cured Tobacco Variety K326 in Chongqing

为了提高K326上部叶烤后烟质量及内部化学成分协调性,试验通过利用K326同一成熟度的上部叶,设定内动力排湿烘烤工艺、外动力排湿烘烤工艺、三段式烘烤工艺3个处理进行研究。结果表明:内动力排湿烘烤工艺表现最好,最利于重庆烟区K326上部烟叶的烘烤,烤后烟叶的总糖、还原糖含量最为接近适宜值,烟碱含量稍高,且总氮含量、糖碱比值处于适宜范围内,淀粉含量最低;其烤后烟在经济上表现佳,中上等烟比例达68.5%,均价达13元/kg。

In order to improve the quality of the upper leaves of flue-cured tobacco and the coordination of the internal chemical composition,the same maturity upper leaves of flue-cured tobacco were cured respectively by three curing technique.The three curing technique were the internal dynamic damper curing technique,the external dynamic damper curing technique and the three-stage curing process.The results indicated that,it was beneficial to improve the value by the internal dynamic damper curing technique with K326 in Chongqing,which made the content of total sugars and reducing sugars be the most closed to the suitable ranges,slightly increased the content of nicotine,reduced the starch content,and kept total nitrogen content sugar alkali ratio in appropriate range.The proportion of middle and superior tobacco leaves was 68.5%,average price was 13 yuan per kilogram.