微波辅助提取香附精油的条件优化研究(英文)  

Optimization on Microwave-assisted Extraction of Essential Oil from Cyperus rotundus L.

作　　者：龚盛昭[1] 程江[1] 杨卓如[1] 

机构地区：[1]华南理工大学传热强化与过程节能教育部重点实验室

出　　处：《林产化学与工业》2006年第3期100-104,共5页Chemistry and Industry of Forest Products

基　　金：广东省佛山市产学研专项资金项目(2003A36)

摘　　要：进行了微波辅助提取香附精油的研究。应用单因素试验和正交试验,考察了提取剂类型、微波功率、微波辐射时间、液料质量比、液料湿度和物料粒度对提取效果的影响,得到了微波辅助提取香附精油的最佳条件:以环己烷为溶剂,物料粒度0.28 mm,微波功率450 W,提取两次,每次90 s,每次用液料质量比为6∶1。提取液进行真空浓缩至不再有溶剂蒸出,得精油粗产品。往精油粗产品中加入乙醇溶解,放入-15℃冰箱中冷冻48 h,离心分离去除树脂状物质,过滤,滤液进行真空浓缩后,即得香附精油,产率约1.24%,纯度97.3%。The applicability of microwave irradiation to assist the extraction of essential oil from Cyperus rotundus L. was investigated. The effects of extraction variables, especially solvent type, microwave power,microwave irradiation time, material-solvent mass ratio, moisture content and particle size of materials on extraction efficiency were investigated using single factor test and orthogonal method. The optimum conditions are obtaine as follows： cyclohexane as solvent, material particle size 0.28 mm, extracting twice, microwave power 450 W, irradiation time 90 s, solvent-material mass ratio 6： 1. The extracted solution was concentrated under vacuum to give crude essential oil which was dissolved in ethanol and frozen at - 15 ~C for 48 h. The solution was then separated centrifugally and filtered to get rid of impurities. The essential oil with yield of 1.24 % and purity of 97.3 % was then obtained after distilling the liquor under vacuum.

关 键 词：精油 微波辅助提取 香附 

分 类 号：TQ654.21[化学工程—精细化工] R284.2[医药卫生—中药学]