基于配方原料均匀性的打叶复烤均质化调控策略选择

为探索打叶复烤过程中均质化加工调控策略，采用把选和片选两种分选方式制备了具有不同化学成分均匀性的配方原料，采用三标度-层次分析法建立了均质化调控效果综合评价指标，对比了烟碱、颜色、光谱3种调控模式下的均质化调控效果。结果表明:①片选方式获得的配方原料均匀性明显优于把选方式。②调控模式对参评指标均匀性控制具有选择性，颜色调控模式能极显著提高成品片烟颜色均匀性。③配方原料均匀性较差时，调控策略宜选择涵盖多维度均质化信息的颜色或光谱调控因子；反之，选择烟碱调控因子即可获得较理想的综合均质化调控效果。该研究结果可为提高打叶复烤均质化加工水平提供支持。 

Selection of control strategy for homogenization in threshing and redrying based on uniformity of blended tobacco material

To explore the control strategy for homogenized processing in threshing and redrying, the blended tobacco materials of different chemical uniformity were prepared through bundle-based and leaf-based selection methods separately. A three-scale analytic hierarchy process (AHP) was used to create a comprehensive evaluation index for assessing the result of homogenization control. The results of homogenization control under nicotine, color and spectrum control modes were compared. The results showed that: 1) The uniformity of blended tobacco material obtained through leaf-based selection was obviously better than that through bundle-based selection. 2) Different control modes showed different control results. The color control mode extremely significantly promoted color uniformity of redried tobacco strips. 3) When the blended tobacco material was not uniform, color or spectrum control modes that covered multi-dimensional homogenization information was preferable; otherwise nicotine control mode would offer more desirable result. This study provides a support for promoting the homogenized processing level of threshing and redrying.