薏苡仁油提取工艺优化及动力学模型研究  

Optimization of Extraction of Coix Seed Oil and Kinetic Models

作　　者：岳莉[1] 赵文英[1] 文佑英[1] 黄巧燕[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《化学工业与工程》2011年第4期26-29,共4页Chemical Industry and Engineering

基　　金：山东省中青年科学家科研奖励基金(BS2009SW033);青岛科技大学博士基金项目(qust20071217)

摘　　要：用正交试验法优选超声辅助提取薏苡仁油最佳提取工艺,并建立数学模型对提取数据进行拟合。结果表明,最适宜提取工艺条件为:薏苡仁粒径0.180 mm,温度60℃,料液比1.0∶5.5,提取时间50 min,在此条件下薏苡仁油提取率可达6.348%,RSD为1.76%(n=3);薏苡仁油提取动力学模型方程为:lnC=λ+γlnt,其线性相关系数R均大于0.996 6,数学模型回归效果较好,可适用于薏苡仁油提取过程的优化控制。The orthogonal design was used to optimize the extraction conditions of ultrasound-assisted extraction of coix seed oil,and the mathematic model was built to fit the experimental data.The results showed the optimal extraction conditions were： the size of coix lacryma-jobi was 0.180 mm;temperature was 60 ℃;the ratio of material to liquid was 1.0∶5.5;the extraction time was 50 min,and the yield of extraction was 6.348%,RSD=1.76%（n=3）.The kinetic model is lnC=λ＋γlnt,the linear correlation coefficient（R） is greater than 0.9966.The regression of the mathematical model is effective and can be applied to controlling the extraction process optimization of coix seed oil.

关 键 词：薏苡仁油 超声提取 正交设计 动力学模型 

分 类 号：R284.2[医药卫生—中药学]