摘要
以山茱萸为试验原料,考察了真空干燥加热温度、干燥室压力对山茱萸干燥特性的影响,并建立了干燥时间和马钱苷质量分数与加热温度和干燥室压力之间的数学模型。利用多目标非线性优化方法,确定了山茱萸真空干燥的最优工艺参数。结果表明,回归模型具有良好的拟合性,当加热温度为68.1℃、压力为1 kPa时,综合优化分值最高时所对应的干燥时间为248 min,马钱苷质量分数为1.19%。
The influence of drying temperature and pressure in the chamber on the drying characteristics of vacuum drying on Cornus officinalis was studied.The regression mathematical models of drying time and content of loganin versus drying temperature and pressure were established.The optimal combination of the parameters for vacuum drying of Cornus officinalis was obtained through nonlinear optimization method with multiple targets.The results showed that the regression mathematical models agreed well with the experimental data,and under the conditions of drying temperature 68.1℃ and pressure 1kPa,the optimal integrative values were obtained as drying time 248min and content of loganin 1.19%,respectively.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第6期118-122,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
河南省杰出青年基金资助项目(084100510005)
关键词
山茱萸
真空干燥
数学模型
工艺优化
Cornus officinalis
Vacuum drying
Mathematical model
Process optimization
