制丝过程中烟丝水分迁移规律研究  

Investigation on Water Distribution and Water Transfer Law of Cut Tobacco During Making Process

作　　者：王乐军 周萍芳 张楚安 钟琳 程宇航 刘毅 姜发堂 邢优诚 WANG Lejun;ZHOU Pingfang;ZHANG Chu'an;ZHONG Lin;CHENG Yuhang;LIU Yi;JIANG Fatang;XING Youcheng(China Tobacco Hubei Industry Co.,Ltd.,Wuhan,Hubei 430040,China;School of Biological Engineering and Food,Hubei University of Technology,Wuhan,Hubei 430068,China)

机构地区：[1]湖北中烟工业有限公司,湖北武汉430040 [2]湖北工业大学生物工程与食品学院,湖北武汉430068

出　　处：《农产品加工》2023年第16期1-5,11,共6页Farm Products Processing

基　　金：国家自然科学基金面上项目“食品软物质组分相容性及组装体结构稳定性表征评价方法与装置研究”(31972156)。

摘　　要：为探究制丝工艺中的水分迁移规律,以低场核磁为核心,结合水分含量与水分活度2个指标,探索制丝过程中烟丝内部水分赋存状态、分布和迁移。结果表明,烟丝中含有3种状态的水,其中绝大多数都是结合水。在制丝过程中,烟丝水分活度下降,3种不同赋存状态的水存在动态迁移,由烟丝内部的结合水向烟丝表面的自由水单向迁移。为准确了解烟丝内部水分的迁移规律,实现制丝过程中对水分的精准控制提供基础数据和理论指导。To explore the water distribution and water transfer law of cut tobacco,low-field nuclear magnetism were conducted,with the measurement of moisture content and water activity,to investigate the water state and mobility of cut tobacco during making process.The results demonstrated that cut tobacco contained three different water states,and most of them was bound water.The bound water was unidirectionally transferred to the free water during making process,and the water activity continued to decrease.This study could be useful for accurately understanding the transfer law of cut tobacco,to provide basic data and theoretical guidance for better control of moisture during making process.

关 键 词：水分状态 T2弛豫时间 水分分布 水分活度 迁移规律 

分 类 号：TS42[农业科学—烟草工业]