摘要
【目的】准确测定烟片的烤后皱缩率,评价不同烟叶原料的皱缩特性。【方法】建立一种基于干燥前后面积变化率的烟片皱缩率测定方法,通过正交试验对烟片尺寸、形状和干燥温度等测定条件进行优化,利用所建立的方法测定33种初烤后烟叶的皱缩率并进行差异性研究。【结果】(1)烟片干燥后既会产生皱缩、也会发生弯曲,利用网孔盖板可有效控制弯曲现象,提高皱缩率测定结果的准确度和重复性。(2)正交试验结果表明烟片尺寸和干燥温度对皱缩率有显著影响,烟片形状的影响不显著;采用直径30 mm的圆形烟片和80℃干燥温度时测得的烟片皱缩率最大。(3)皱缩率在不同部位烟叶间存在显著差异性,变化规律为上部>中部>下部。【结论】皱缩特性是烟叶的固有特性,所建立的皱缩率测定方法科学可行,可定量评价烟叶皱缩特性。
[Objective]This study aims to accurately determine the post-drying shrinkage rate of tobacco flakes and to evaluate the shrinking characteristics of different tobacco raw materials.[Methods]A method was developed to determine the shrinkage rate of tobacco flakes based on the change rate of area before and after drying,and the measurement conditions such as flake size,shape and drying temperature were optimized by orthogonal tests.[Results](1)Shrinking and bending may occur after drying,and the use of a mesh cover can effectively control the bending phenomenon and improve the accuracy and repeatability of the measurement of shrinkage rate.(2)The results of the orthogonal test showed that the size of the tobacco flakes and the drying temperature had a significant effect on the shrinkage rate,while the shape of the tobacco flakes did not have a significant effect;the largest shrinkage rate of the tobacco flakes was found using round flakes with a diameter of 30 mm under the drying temperature of 80℃.(3)There was significant difference in the shrinkage rate at different parts of the tobacco leaves,with the ranking of upper leaf>middle leaf>lower leaf.[Conclusion]Shrinkage is an inherent characteristic of tobacco leaves.The established method for determining the shrinkage rate is scientific and feasible,which can quantitatively evaluate the shrinking characteristics of tobacco leaves.
作者
王建民
常冰冰
杨洋
王东飞
代存迪
李欢
WANG Jianmin;CHANG Bingbing;YANG Yang;WANG Dongfei;DAI Cundi;LI Huan(College of Food and Biological Engineering,Zhengzhou University of Light Industry,Zhengzhou 450001,China;Technology Center,China Tobacco Guizhou Industrial Company Limited,Guiyang 550009,China)
出处
《中国烟草学报》
CAS
CSCD
北大核心
2021年第3期27-34,共8页
Acta Tabacaria Sinica
基金
贵州中烟工业有限责任公司科技项目(“贵烟”品牌烟叶大模块设计及打叶复烤关键技术研究GZZY/KJ/JZ/2019GSY009-1)。
关键词
烟叶
皱缩率
测定方法
影响因素
tobacco leaf
shrinkage rate
measuring method
influencing factors
