正交试验优化葛根中葛根素的微波提取工艺  

Optimization of Microwave-assisted Extraction Technology of Puerarin from Radix Puerariae by Orthogonal Experiment

作　　者：武宇芳[1] 白建华[1] 赵二劳[1] 

机构地区：[1]忻州师范学院化学系,山西忻州034000

出　　处：《湖北农业科学》2012年第5期989-991,共3页Hubei Agricultural Sciences

基　　金：山西省高校科技开发研究项目(200611041)

摘　　要：以体积分数50%的乙醇为提取剂,采用微波辅助法提取葛(Pueraria montana var.lobata)根中的葛根素,设计正交试验优化提取工艺。结果表明,优化的提取条件为料液比1∶40(m∶V,g/mL)、微波功率500W、微波处理时间5 min。此工艺条件下葛根中葛根素的提取率为3.51%。与加热回流法相比,采用微波辅助法葛根素的提取率提高了19.79%,提取时间缩短了90%。Using 50%（volume fraction） ethanol as extracting regent, puerarin was extracted from radix puerariae of Pueraria montana by microwave-assisted craft. Orthogonal test was adopted to optimize the craft taking extraction ratio of puerarin as index. The optimum extraction conditions were as follows, materials to solution ratio,l：40（m：V,g/mL）; Microwave power, 500 W; Microwave extraction time, 5 min. The extraction ratio of puerarin could reach 3.51% under the condition. Compared with heating refluxing extraction method, the extraction ratio was increased by 19.79%; While extraction time was shortened by 90%.

关 键 词：葛(Pueraria montana var.lobata)根 葛根素 微波 提取 正交试验 

分 类 号：R284.2[医药卫生—中药学]