胡萝卜热风干燥特性及数学模型研究  

Drying characteristics and mathematical model of hot air drying of carrot

作　　者：蒋赣[1] 陈蔓琪 梁洁欣[1] 丁静[2] 

机构地区：[1]广东药学院医药化工学院,广东中山528458 [2]中山大学工学院,广东广州510006

出　　处：《广东农业科学》2013年第22期106-110,共5页Guangdong Agricultural Sciences

基　　金：国家自然科学基金-广东联合基金(U1034005);广东省中医药局建设中医药强省科研项目(20112151)

摘　　要：对胡萝卜热风干燥进行试验研究,分析热风温度、切片厚度、热风风速等因素对胡萝卜干燥速率和复水性能的影响,结果表明:风温越高,干燥越快、复水性能越差;风速越大,干燥速率越快、复水性能越差;切片厚度越薄,干燥越快、复水性能越好。与传统干燥模型进行对比,胡萝卜热风干燥符合Page模型,拟合出胡萝卜热风干燥方程式,为胡萝卜干燥生产提供理论依据。Hot-air drying of carrot was studied and the speed of drying and rehydration radio affected by air temperature, thickness and wind speed was analyzed. The results showed that the higher the wind speed and air temperature was, the faster the carrot dried and the worse the rehydration was; the thinner the slice thickness got, the higher the drying rate was and the worse the rehydration was. Comparing the results to the traditional drying model, it showed that the Page model was fit to the carrot hot air drying, and the equation of carrot hot air drying was fitted. The results could provide a theoretical basis for carrot drying production.

关 键 词：热风干燥 胡萝卜 复水性 模型 

分 类 号：TS205.1[轻工技术与工程—食品科学]