不同烘烤方式烘烤过程中烟叶表面腺毛分泌物变化的研究

Changes of tobacco leaf trichome exudates during curing under different curing regimes

为研究不同烘烤方式对烘烤过程中烟叶表面腺毛分泌物含量变化与损失的影响,选择了传统普通烤房、挂竿密集烤房、散叶密集烤房和框装密集烤房等4种烤房类型,采用GC-MS定性,GC-FID定量的方法,分析烟叶表面腺毛分泌物含量。结果表明,挂竿密集烤房和散叶密集烤房烤后烟叶腺毛分泌物总量分别约为传统普通烤房的50%和60%,并且损失主要发生在干筋期。框装密集烤房烤后烟叶腺毛分泌物总量与传统普通烤房相当。因此,框装密集烤房是解决目前挂竿密集烤房烟叶香气量损失较大的有效措施之一。

Content of trichome exudates in cured leaves from four different curing barns, i. e. , traditional rod-hanging barn, rod-hanging bulk-curing barn, loose-leaf bulk curing barn, and basket-holding bulk curing barn, were analyzed by GC-MS and GC-FID method to study effect of different curing regimes on changes of tobacco leaf trichome exudates. Results showed that total content of trichome exudates in cured leaves from rod-hanging bulk-curing and loose-leaf bulk- curing barns were roughly 50% and 60% of those from traditional rod-hanging curing barn. The loss was mainly oc- curred during stem-drying stage. Content of trichome exudates from basket-holding bulk curing barn leaf was almost e- qual to that of traditional rod-handing curing barn leaf. It seemed that basket-holding bulk curing was one of the effective measures to reduce aroma loss caused by rod-hang bulk curing.