南方农业学报2017，Vol.48Issue(9)：1659-1664,6.DOI:10.3969/j.issn.2095-1191.2017.09.20
烤烟上部叶带茎烘烤水分状态及形态变化分析
Analysis on variation of moisture state and shape of flue-cured tobacco upper leaves with stalk during curing
摘要
Abstract
[Objective] In the present study,dehydration drying characteristics of flue-cured tobacco leaves with stalk during curing were investigated to provide a theoretical basis for optimization of curing technology.[Method] The variation of moisture content,state and shape shrinkage in tobacco leaves with stalks were determined during curing,and compared with those of tobacco leaves without stalks.In addition,the correlation between water index and shape index of tobacco leaves was analyzed.[Result] Moisture content in leaf,blade and midrib of tobacco with stalk was higher than that of tobacco without stalk,the moisture transport characteristics of tobacco leaf with stalk during curing were as follows:free water in tobacco stalk transported to tobacco blade and tobacco midrib,which made free water content and proportion in blade and midrib of tobacco with stalk higher than those of tobacco leaves without stalk.Thickness shrinkage rate of tobacco blade with stalk was significantly smaller than that of tobacco blade without stalk before leaf drying (P＜0.05,the same below).However,thickness shrinkage rate of tobacco blade with stalk was significantly higher than that of tobacco blade without stalk after leaf drying.Diameter shrinkage rate of tobacco midrib with stalk was significantly smaller than tobacco midrib without stalk during curing.There was extremely significant positive correlation between free water content in tobacco blade and its moisture content rate,and between free water in tobacco midrib and its moisture content rate.[Conclusion] Tobacco shape shrinkage is closely related to free water content and moisture content rate.Tobacco moisture content and state can be judged through tobacco shrinkage.关键词
烤烟/带茎烘烤/水含率/自由水/形态变化Key words
flue-cured tobacco/curing with stalk/moisture content rate/free water/shape variation分类
农业科技引用本文复制引用
魏硕,罗定棋,顾勇,赵锦超,夏建华,张永辉,谢强,宋朝鹏..烤烟上部叶带茎烘烤水分状态及形态变化分析[J].南方农业学报,2017,48(9):1659-1664,6.基金项目
中国烟草总公司科技项目(110201101001) （110201101001）
四川省烟草公司泸州市公司科技项目(川烟科[2017]8号) （川烟科[2017]8号）
