基于叶片保水力的烟叶烘烤水分干燥模型构建  

Tobacco leaf moisture drying model during flue curing based on leaf water holding capacity

作　　者：魏硕[1] 李生栋 徐宸[2] 汪代斌[2] 李常军[2] 杨超[2] 黄克久[2] 陈少鹏[2] 郭保银[2] 宋朝鹏[1] WEI Shuo;LI Sheng-dong;XU Chen;WANG Dai-bin;LI Chang-jun;YANG Chao;HUANG Ke-jiu;CHEN Shao-peng;GUO Bao-yin;SONG Zhao-peng(Tobacco College,Henan Agricultural University,Zhengzhou 450002,China;Chongqing Branch,China National Tobacco Corporation,Chongqing 400020,China)

机构地区：[1]河南农业大学烟草学院,郑州450002 [2]中国烟草总公司重庆市公司,重庆400020

出　　处：《南方农业学报》2017年第8期1477-1482,共6页Journal of Southern Agriculture

基　　金：中国烟草总公司科技项目(Ts-01-2011006)

摘　　要：【目的】研究不同烟区、品种及部位烟叶保水力与水分干燥模型参数的关系,为烟叶烘烤提供简易、精准的水分预测方法并为烟草精准烘烤提供理论依据。【方法】以江西和湖南烟区烤烟品种K326和云烟87不同部位烟叶为试验材料,采用称重法测定烟叶保水力,结合水分干燥原理及水分干燥模型对烘烤过程中烟叶水分变化进行拟合求解,并对烟叶保水力与模型参数进行回归分析。【结果】不同部位间烟叶保水力随烟叶部位的升高而增加,不同品种间K326保水力均大于云烟87;除湖南烟区K326上部叶保水力大于江西烟区外,不同烟区间江西烟区烟叶保水力均大于湖南烟区。不同烟区、品种及部位烟叶Wang and Singh模型拟合决定系数R^2均大于0.95,且模型干燥参数a与烟叶保水力呈正相关,与干燥参数b呈负相关。烟叶保水力与模型干燥参数a、b之间线性回归结果显示:烟叶保水力与模型参数a、b显著水平P均小于0.05,且线性拟合决定系数R2均大于0.95。【结论】常规烘烤过程中烟叶水分比变化符合Wang and Singh模型,且烟叶保水力与干燥模型参数a、b存在极显著相关,可依据烟叶保水力精准估算模型参数预测烟叶烘烤过程中水分变化。【Objective】The relationship between moisture drying model parameters and water holding capacity of tobacco leaves from different tobacco production areas,tobacco varieties,and stalk positions were studied in this experiment in order to provide a simple and easy method for moisture prediction during flue curing process and lay a foundation for precise flue curing.【Method】Leaves at different stalk positions of flue-cured tobacco varieties K326and Yunyan87in Jiangxi and Hunan were used as test samples.Weighing method was used to measure the water holding capacity of different leaves,moisture content variation in tobacco leaves during curing was fitted combining moisture drying model principle and moisture drying model.Regression analysis was used to analyze water holding capacity of tobacco leaves and the model parameters.【Result】Water holding capacity of leaves at different stalk positions increased with the rising of stalk posotions.Among different flue-cured tobacco varieties,water holding capacity of K326was always higher than Yunyan87.Water holding capacities of tobacco leaves from Jiangxi tobacco production area were always higher than those from Hunan tobacco production area,except that water holding capacity of K326upper leaves in Hunan tobacco production area were higher than those from Jiangxi.Fitting determination coefficient R2of Wang and Singh model were all bigger than0.95in different tobacco production areas,tobacco varieties and stalk positions.In the model,drying parameter a was positively correlated to water holding capacity of tobacco leaves,but it was negatively correlated with drying parameter b.The linear regression result between water holding capacity and model drying parameter a and b indicated that the significant level P of water holding capacity and model drying parameter a and b were smaller than0.05,and linear fitting determination coefficient(R2)were higher than0.95.【Conclusion】The change of tobacco leaf moisture ratio is in line with the Wang and Singh model during nor

关 键 词：烟叶保水力 烟区 品种 部位 干燥模型 

分 类 号：S572[农业科学—烟草工业]