微波干燥法快速测定烟叶含水率的研究  

Study on Rapid Determination of Moisture Content in Tobacco Leaves by Microwave Drying Method

作　　者：严秀芳 王光伟 宾俊 莫如宣 Yan Xiufang;Wang Guangwei;Bin Jun;Mo Ruxuan(Journal Editorial Department,Guizhou University,Guiyang 550025,Guizhou,China;College of Tobacco/Guizhou Key Laboratory for Tobacco Quality Research,Guizhou University,Guiyang 550025,Guizhou,China)

机构地区：[1]贵州大学学报编辑部,贵州贵阳550025 [2]贵州大学烟草学院/贵州省烟草品质研究重点实验室,贵州贵阳550025

出　　处：《山地农业生物学报》2024年第3期57-62,共6页Journal of Mountain Agriculture and Biology

基　　金：贵州大学大学生创新创业计划项目(贵大(校)创字2021[082]);国家自然科学基金地区基金项目(22367004);贵州省科技计划项目(黔科合基础-ZK[2022]一般126;黔科合基础-ZK[2022]一般063)。

摘　　要：为快速准确测定烟叶含水率,降低能耗,提高测定效率,试验采用普通家用微波炉为微波干燥仪器,探索优化试验条件,完成烟样含水率的快速测定。结果表明:在使用中高火、间歇加热4次、每次加热90 s的条件下测得的烟叶含水率与烟草行业标准方法(烘箱干燥法)所测得的烟样含水率间无显著性差异。但相对于传统的烘箱干燥法,微波干燥法可明显地降低能耗,提升工作效率。对于测定单个样本来说,微波干燥法仅需30 min即可完成单个样本水分测定过程,而烘箱干燥法需耗时100 min;另外,微波干燥法仅需消耗0.12 kWh的能量,而烘箱干燥法需耗费2.67 kWh的能量。综上所述,使用微波干燥法测定烟叶水分可获得与烘箱干燥法无显著性差异的结果,但相比于传统烘箱干燥法,微波干燥法具有耗时少、耗能低等优点。For the purpose of precisely determining the moisture content of tobacco leaves,minimizing energy usage,and enhancing measurement efficiency,a standard household microwave oven was employed as a microwave drying device in this study.The objective was to investigate and refine the experimental parameters to swiftly determine the moisture content of tobacco samples.The experimental results showed that there was no significant difference in the moisture content of tobacco samples when measured using the tobacco industry standard method(oven drying method)compared to the results obtained from the microwave drying method.The microwave drying method involved intermittent heating at medium and high power levels,with 4 heating cycles lasting 90 seconds each.Despite traditional oven drying methods being commonly used,microwave drying offered a more energy-efficient and time-saving alternative.In fact,for a single sample,microwave drying could complete the determination process in just 30 minutes,compared to the 100 minutes required by oven drying.Furthermore,microwave drying only consumed 0.12 kWh of energy,whereas oven drying consumed 2.67 kWh.To sum up,the use of microwave drying method for measuring the moisture content of tobacco leaves yields results that were comparable to the tobacco industry standard method(oven drying method).Nonetheless,the microwave drying method offered the benefits of quicker processing time and lower energy usage when compared to the traditional oven drying method.

关 键 词：微波干燥法 烘箱干燥法 烟叶含水率 水分测定 

分 类 号：TS44.1[农业科学—烟草工业]