超临界CO_2萃取生姜油的模型方程和条件优化  

Model Equation and Optimizing of Conditions in Supercritical CO_2 Fluid Extraction for Ginger Oil

作　　者：徐伟[1] 石海英[1] 徐晓艳[2] 彭向前[1] 马力[3] 

机构地区：[1]聊城大学生命科学学院,山东聊城252059 [2]聊城市人民医院,山东聊城252000 [3]西华大学生物工程学院,四川成都610039

出　　处：《食品研究与开发》2010年第4期8-13,共6页Food Research and Development

基　　金：四川省教育厅重点项目(0125841)

摘　　要：优化超临界CO2萃取生姜油的工艺条件,提高生姜油的萃取率。以生姜油萃取率为响应值,利用单因素试验、正交试验、回归分析和响应面分析法对超临界CO2萃取生姜油的工艺条件进行系统研究。建立对萃取率可以进行较好预测的数学模型方程,证明影响萃取率的各主要因素间存在不同大小的交互作用,得到了生姜油超临界CO2萃取的最佳工艺条件:萃取压力29MPa;萃取温度50℃;萃取时间180min;解析压力5.6MPa;解析温度36℃。最佳工艺条件下生姜油萃取率为:7.461%。The conditions were optimized in supercritical CO2 fluid extraction for ginger oil. The extraction rate was improved for ginger oil. The extraction rate was used as response value. The conditions were investigated by the methods of single factor experiment, orthogonal test, regression analysis, response surface analysis. The mathematical model equation was established and the relationship could be predicted well between the extraction rate and the conditions. There was different interaction among main factors. The optimum condition of the supercritical CO2 fluid extraction for ginger oil was as follows： extraction pressure 29 MPa, extraction temperature 50 ℃ , extraction time 180 min, releasing pressure 5.6 MPa, releasing temperature 36 ℃ . The maximum extraction rate was 7.461 % for ginger oil at optimum conditions.

关 键 词：超临界流体萃取 生姜油 正交试验 模型方程 

分 类 号：TS224.4[轻工技术与工程—粮食、油脂及植物蛋白工程]