摘要
利用烟草等温吸脱附性能检测装置考察施加了魔芋葡甘聚糖(KGM)保润剂的烟丝样品的吸湿特性,结果表明:KGM有助于增强烟丝的持水能力,减缓水分散失过程,KGM不同程度地降低了各部位烟丝的干燥速率常数;烟丝样品的等温吸湿-解湿曲线呈Ⅲ型吸附曲线,且KGM的施加会加剧吸湿滞后现象,吸湿滞后行为随温度升高有减弱趋势,中上部烟丝的吸湿滞后现象强于下部烟丝,DLP经验模型可较好地描述烟丝样品的等温吸湿-解湿行为。
The effect of konjac glucomannan(KGM)addition on the hygroscopic characteristics of cut tobacco was investigated by using isothermal adsorption/desorption ability testing device.The results showed that the introduction of KGM humectant enhanced the moisture holding capacity of cut tobacco and slowed down the water loss process.The drying rate constants(k)calculated using Henderson & Pabis model were reduced to varying degrees for cut tobacco from different parts of a tobacco plant.In addition,the isothermal sorption and desorption curves exhibited the form of adsorption curve type Ⅲ.The addition of KGM can effectively increase hygroscopic hysteresis of cut tobacco.Moreover,the hygroscopic hysteresis behavior decreased with increasing temperature and this phenomenon of middle and upper tobacco was more significant than that of lower tobacco.DLP empirical model could describe the isothermal absorption and desorption behavior of cut tobacco with relatively high coefficient R^2.
作者
梁淼
张果
刘翠美
李斌
张柯
吕斌
LIANG Miao;ZHANG Guo;LIU Cui-mei;LI Bin;ZHANG Ke;LV Bin(School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450001, China;Department of Material and Chemical Engineering, Zhengzhou University of Light Industry,Zhengzhou, Henan 450001, China;Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan 450001, China;Food Inspection and Testing Institute of Henan Province, Zhengzhou, Henan 450003, China)
出处
《食品与机械》
北大核心
2019年第7期204-209,共6页
Food and Machinery
基金
河南省重大科技专项(编号：182102110113)
郑州轻工业学院众创空间项目(编号2018ZCKJ325)
博士科研基金项目(编号：2014BSJJ067)
关键词
保润剂
烟草
吸湿特性
魔芋葡甘聚糖
humectant
tobacco
hygroscopic characteristics
konjac glucomannan
