烤后烟叶品种间叶表面提取物主要成分分析

Analysis of Major Cuticular Components from Cured Leaves of Different Flue-cured Tobacco Varieties

试验在贵州省开阳龙岗进行。选定贵州4个主栽品种,分部位采取成熟鲜叶提取叶表面物质分析。检测表明,烤烟叶表面提取物主要包括烟碱、新植二烯、腺毛分泌物和烷烃类。不同品种叶表面提取物主要成分含量一定差异。4个品种叶表面提取物总量、新植二烯含量和腺毛分泌物含量的排序为南江3号<K326<贵烟201<云烟85,烷烃物质平均含量排序为南江3号<云烟85<贵烟201<K326。各品种烟叶腺毛分泌物中松香油平均含量与其它萜烯类物质总量相当,西柏三烯二醇含量大于西柏三烯一醇含量,α-西柏三烯二醇平均含量是β-西柏三烯二醇含量的2倍以上。烷烃物质含量以中部叶含量最低,其原因有待进一步探索。

The experiment was carried out in Longgang,Kaiyang county of Guizhou province.The major cuticular components from cured leaves from three plant positions of four flue-cured tobacco varieties grown in Guizhou were analyzed after extracted with methylene chloride.The result showed that the major cuticular components of cured leaf were nicotine,neophytadiene,trichome exudates and alkanes,the amount of which varied among various varieties.The order of total cuticular components,neophytadiene and trichome exudates for four varieties,from low to high,was Nanjiang 3 to K326 to Guiyan 201 to Yunyan 85.The average content of rentinol was roughly equal to the total amount of all other terpenes,the average content of cembratriene-diol was more than that of cembratriene-ol,the level of α-cembratriene-diol was more than twice as that of β-cembratriene-diol.The average levels of alkanes from middle position leaves of all varieties were the lowest,further research is needed to explore the causes.