Optimization of xanthophylls extraction from Marigold extractum with supercritical CO_(2) by response surface methodology  

作　　者：Zhou Quancheng Sheng Guihua Huang Jingrong Zhou Ting Li Quanhong 

机构地区：[1]School of Light Industry and Agricultural Engineering,Shandong University of Technology,Zibo 255049,China [2]School of Life Science,Shandong University of Technology,Zibo 255049,China [3]College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083,China

出　　处：《International Journal of Agricultural and Biological Engineering》2010年第2期58-63,共6页国际农业与生物工程学报（英文）

基　　金：supported by Shandong Provincial Education Department Plan for Scientific and Technology Development(J08LF05)。

摘　　要：In this work,xanthophylls were extracted from Marigold using supercritical CO_(2).A response surface experimental design was used to optimize operating conditions for extraction pressure(22-30 MPa),extraction temperature(50-60℃),CO_(2) flow rate(9-15 kg/h).The maximum concentration of xanthophyll in extracts was determined to be 35.8%by high performance liquid chromatography(HPLC),and optimum xanthophylls extraction was obtained at 55℃,26 MPa and 12 kg/h.The optimization results demonstrated that for xanthophylls extraction,all variables(temperature,pressure and CO_(2) flow rate)were to be the influential variables,with the statistical significant effect p-value was smaller than 0.05.

关 键 词：XANTHOPHYLLS supercritical CO_(2)extraction extraction rate constant Marigold extractum 

分 类 号：TG1[金属学及工艺—金属学]