烘烤变黄关键温度不同稳温时间对烤后烟叶品质的影响

　　摘 要：為探究烤烟烘烤变黄阶段关键温度点不同稳温时间对烤后烟叶品质的影响，在变黄阶段干球温度达到38℃和42℃时设置4个不同稳温时间处理，研究变黄阶段不同稳温时间与烤后烟叶等级质量、主要化学成分及评吸质量的关系。结果表明：下部叶T1（38℃稳温24 h、42℃稳温12 h），中、上部叶T2（38℃稳温24 h、42℃稳温16 h）烤后烟叶质量表现最好。从上等烟率和均价来看，下部叶T1均价为1775元/kg，较其他处理高043元/kg～077 元/kg；中部叶T2分别为5926%、2126 元/kg，分别较其他处理高134%～461%、025 元/kg～084 元/kg；上部叶T2分别为4196%、1921元/kg，分别较其他处理高185%～315%、026元/kg～078元/kg。同时，下部叶T1、中部叶T2、上部叶T2也表现出化学成分较为协调，评吸得分最高。
　　关键词：烤烟；变黄阶段；稳温时间；烟叶质量
　　中图分类号：S572
　　文献标识码：A
　　文章编号：1008-0457（2018）04-0036-005 国际DOI编码：10.15958/j.cnki.sdnyswxb.2018.04.005
　　Effects of Different Stable Times at Key Temperatures in Yellowing Stage on Quality of Tobacco Leaves after Curing
　　SHI Yuchen1，TIAN Yutian2，LI Xiangwei2，AI Fuqing3，4*
　　（1.Agricultural College， Guizhou University， Guiyang， Guizhou 550025； 2. Department of Materials， Hongta Group， Yuxi， Yunnan 653100， China； 3. Tobacco College， Guizhou University， Guiyang， Guizhou 550025； 4.Guizhou Key Laboratory for Tobacco Quality， Guiyang， Guizhou 550025， China）
　　Abstract：In order to study the effects of different stable times at key temperatures in yellowing stage on quality of tobacco leaves after curing， four treatments of stable time were established when temperature reached 38 degrees or 42 degrees. This was to examine the relationship between the different stable times and grade quality， main chemical components， smoking quality in the yellowing stage after curing. The results showed that the quality of lower leaves treated at T1 （38℃ stabilized for 24h and 42℃ stabilized for 12h） and that of middle and upper leaves treated at T2 （38℃ stabilized for 24h and 42℃ stabilized for 16h） after curing were the best. The average price of the first-class lower leaves treated at T1 were 17.75 yuan/kg， which was 0.43 yuan/kg～0.77 yuan/kg higher than other treatments. The first class middle leaves treated as T2 were 59.26%， which was 1.34%～4.61% higher than other treatments， and their average price is 21.26 yuan/kg， which was 0.25 yuan/kg～0.84 yuan/kg higher than other treatments. The first-class upper leaves treated at T2 were 41.96%， which was 1.85%～3.15% higher than other treatments， and their average price was 19.21 yuan/kg， which was 0.26 yuan/kg～0.78 yuan/kg higher than other treatments. At the same time， the lower leaves at T1， middle leaves and upper leaves at T2 also showed that the chemical composition was more coordinated and the smoking score was the highest.
　　Key words：flue-cured tobacco； yellowing stage； stable time； grade quality

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