超临界CO_2萃取与微波法联用提取姜黄有效成分的研究  

Study on Extraction of Active Ingredient of Turmeric by Supercritical CO_2 and Microwave Combined Technique

作　　者：李湘洲[1] 张炎强[1] 张金玲[1] 罗正[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004

出　　处：《林业科学》2007年第5期85-89,共5页Scientia Silvae Sinicae

基　　金：国家科技部"十一五"科技支撑计划重点项目(2006BAD18B04);湖南省教育厅优秀青年项目(05B031)资助

摘　　要：建立姜黄油及姜黄色素的超临界-微波联合提取工艺,在超临界CO2萃取姜黄油前处理工序的基础上,通过正交试验研究微波法提取姜黄色素过程中各操作参数对提取效果的影响,比较组合工艺与其他工艺在提取条件、产品得率、纯度等方面的差异。优化后得到的最佳条件为:提取温度45℃,料液比1∶11,乙醇体积分数80%,时间2min,姜黄色素得率达到3.22%。超临界-微波联合提取工艺完成了姜黄油和姜黄色素的分步提取,而且一定程度上达到了姜黄油和姜黄色素的提取、分离同时实现的效果,更有利于后期精制。To establish a new method for the extraction of turmeric oil and cureumin by supercritical CO2 and microwave combined technique, turmeric powder was pre-treated with suporcritical CO2 to obtain turmeric oleoresin, and then microwave was used to extract curcumin. Orthogonal experiment was applied to optimize the process parameters of the microwave assisted extraction, and the parameters about extraction condition, production yield, purity of different extraction technologies were compared. The optimum conditions of curcumin extracting were： temperature 45 ℃, ratio of material to liquor 1 ： 11, 80% ethanol as extracting solvent, time 2 min, yieid of 3.22 % .

关 键 词：姜黄 姜黄色素 微波辅助提取 超临界CO2萃取 

分 类 号：Q946.91[生物学—植物学]