不同干燥方式下海马干燥特性及其数学模型  

The Drying Characteristic and Mathematical Modeling of Various Drying Method of Seahorse

作　　者：吴靖娜 陈晓婷[3] 潘南[3] 廖登远[3] 张锦花 刘智禹[3] WU Jing-na;CHEN Xiao-ting;PAN Nan;LIAO Deng-yuan;ZHANG Jin-hua;LIU Zhi-yu(Xiamen Key Laboratory of Marine Medicinal Natural Products Resources,Xiamen Medical College,Xiamen 361023,China;Fujian Universities and Colleges Engineering Research Center of Marine Biopharmaceutical Resources,Xiamen Medical College,Xiamen 361023,China;Fisheries Research Institute of Fujian,Xiamen 361013,China)

机构地区：[1]厦门市海洋药用天然产物资源重点实验室,厦门医学院,福建厦门361023 [2]海洋生物医药资源福建省高校工程研究中心,厦门医学院,福建厦门361023 [3]福建省水产研究所,福建厦门361013

出　　处：《现代食品科技》2020年第12期133-142,共10页Modern Food Science and Technology

基　　金：福建省科技计划项目(2018R1003-10);福建省教育厅中青年科技项目(JAT17071)。

摘　　要：采用热风干燥、真空干燥和冷风干燥对海马进行干燥,比较不同干燥工艺下海马的干燥特性、水分有效扩散系数以及活化能的区别,并建立海马的干燥动力学模型。获得了50℃、60℃、70℃、80℃、90℃及100℃条件下海马热风干燥特性曲线,50℃、60℃、70℃、80℃及90℃条件下海马真空干燥特性曲线,20℃、30℃及40℃条件下海马冷风干燥特性曲线。以R^2、χ^2和RMSE为评价指标,选用13种典型干燥模型对海马的干燥曲线进行拟合,结果表明Page模型和Midilli模型最适合描述海马热风干燥过程;Page模型和Weibull模型可以准确描述海马真空干燥过程;Page模型、Logarithmic模型和Weibull模型可以很好的描述海马冷风干燥过程。海马热风干燥、真空干燥及冷风干燥的有效水分扩散系数D(eff)分别在1.1714×10^-10m^2/s^6.7873×10^-10m^2/s、4.9252×10^-10m^2/s^10.4920×10^-10m^2/s和2.3510×10^-10m^2/s^4.0174×10^-10m^2/s区间内,活化能分别为37.05 k J/mol、18.75 k J/mol和20.55 k J/mol。Drying of seahorse by hot air,vacuum and cold air,the drying characteristic,effective diffusion coefficients,activation energy and mathematical modeling were investigated at various conditions.Kinetics of seahorse at 50℃,60℃,70℃,80℃,90℃and 100℃for hot air drying,50℃,60℃,70℃,80℃and 90℃for vacuum drying,and 20℃,30℃and 40℃for cold air drying were obtained.With respect to R2,χ^2 and RMSE,fitting of experimental data to 13 thin layer drying models resulted in Page and Midilli model were suitable model for hot air drying techniques,Page and Weibull model were suitable model for vacuum drying techniques,Page,Logarithmic and Weibull model were suitable model for cold air drying techniques.Effective diffusion coefficients Deff of hot air drying,vacuum drying and cold air drying varied between 1.1714×10^-10 m^2/s^6.7873×10^-10 m^2/s,4.9252×10^-10 m^2/s^10.4920×10^-10 m^2/s and 2.3510×10^-10 m^2/s^4.0174×10^-10 m^2/s respectively.Activation energy values were 37.05 k J/mol,18.75 k J/mol,and 20.55 k J/mol respectively.

关 键 词：海马 干燥动力学 数学模型 水分有效扩散系数 活化能 

分 类 号：TQ461[化学工程—制药化工]