响应面法优化桔梗切片远红外干燥工艺  

Optimization of Far Infrared Drying Process of Platycodon Grandiflorum Slice by Response Surface Methodology

作　　者：李武强 黄晓鹏 马嘉伟 万芳新 罗燕 马国军 LI Wu-qiang;HUANG Xiao-peng;MA Jia-wei;WAN Fang-xin;LUO Yan;MA Guo-jun(College of Mechanical and Electronical Engineering,Gansu Agricultural University,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃农业大学机电工程学院

出　　处：《林业机械与木工设备》2019年第8期47-51,共5页Forestry Machinery & Woodworking Equipment

基　　金：国家自然科学基金项目(51765003);甘肃农业大学科技创新基金项目(GSAU-XKJS-2018-187)

摘　　要：为优化桔梗切片的远红外干燥工艺,以干燥温度、切片厚度和辐照高度为试验因素,将平均干燥速率、复水比和色差值作为试验指标,利用响应曲面法研究试验因素对桔梗远红外干燥工艺的影响,建立二次多项式回归模型进行干燥工艺优化。结果表明:最优参数为干燥温度60℃、切片厚度3mm、辐照高度240mm,此时对应的目标参数分别为平均干燥速率0.718%/min、复水比7.537、色差值9.286。In order to optimize the far-infrared drying process of platycodon grandiflorum slices,the drying temperature,slice thickness and irradiation height were used as experimental factors,and the average drying rate,rehydration ratio and color difference were used as experimental indicators.The response surface method was used to study the experimental factors on carrots.The influence of the infrared drying process,the regression model of the quadratic polynomial is established,and the drying process is optimized.The results show that the optimal parameters are:drying temperature 60 ℃,slice thickness 3 mm,irradiation height 240 mm.The corresponding target parameters are:average drying rate 0.718,rehydration ratio 7.537,color difference 9.286.

关 键 词：响应面法 干燥温度 切片厚度 辐照高度 工艺优化 

分 类 号：S781[农业科学—木材科学与技术]