摘要
以烤烟K326品种上部叶为试验材料,分别选取返青烟、高温逼熟烟、贪青晚熟烟3种类型难落黄烟叶进行烘烤,测定烘烤过程中烟叶的水分含量、外观颜色参数、叶绿素含量和多酚氧化酶活性等指标。研究结果显示:返青烟在变黄期和定色期失水较快,叶绿素降解量最高,多酚氧化酶活性波动较大;高温逼熟烟在变黄期失水最慢,叶绿素降解量中等,多酚氧化酶活性较低且变化较为平稳;贪青晚熟烟在变黄期和定色期失水较慢,叶绿素降解量最低,多酚氧化酶活性波动最大。研究得出:易烤性为返青烟>贪青晚熟烟>高温逼熟烟;耐烤性为高温逼熟烟>返青烟>贪青晚熟烟。
The upper leaves of flue-cured tobacco variety K326 were used as experimental materials, three types of tobacco leaves in- cluding re-greening leaves ,heat-forced maturity leaves ,over-green and late-maturing leaves were selected to bake. The moisture content, appearance color parameters, chlorophyll content and polyphenol oxidase activity were measured. The results showed that during yellowing and color fixing stage, re-greening leaves dehydrate faster, the degradation of chlorophyll was the highest, polyphe- nol oxidase activity fluctuations. Heat-forced maturity leaves water losing speed was the slowest, the chlorophyll degradation was medium, the polyphenol oxidase activity was low and the change was relatively stable. Over-green and late-maturing leaves slowly dehydrate, the degradation of chlorophyll was the lowest, the polyphenol oxidase activity has maximum fluctuation. It was concluded that for the easy curing potential, re-greening leaves were the best, over-green and late-maturing leaves were medium, heat-forced maturity leaves were the worst. And for the endurable curing potential, heat-forced maturity leaves were the best, re-greening leaves were medium, over-green and late-maturing leaves wee the worst.
出处
《天津农业科学》
CAS
2017年第8期76-78,90,共4页
Tianjin Agricultural Sciences
基金
国家烟草专卖局重大科技项目(Ts-01-2011006)
关键词
难变黄
烟叶素质
烘烤特性
hard to turn yellow
tobacco quality
curing characteristics
作者简介
杨鹏（1979-），男，河南安阳人，农艺师，主要从事烟叶生产技术推广和管理工作。
李峥（1994-），男，河南周口人，在读研究生，主要从事烟草烘烤调制研究。
