微波场协同提取溪黄草黄色素的研究(英文)  

Studies on the Microwave Extraction of the Yellow Pigment from Rabdosia serra (Maxim.) Hara

作　　者：黎彧[1] 刘敏锐[2] 

机构地区：[1]中山大学化学与化学工程学院,广州510275 [2]广东轻工职业技术学院轻化系,广州510300

出　　处：《中药材》2005年第4期330-332,共3页Journal of Chinese Medicinal Materials

基　　金：广东省佛山市产学研专项基金资助课题(2003S22)

摘　　要：研究了微波提取溪黄草Rabdosiaserra(Maxim )Hara黄色素的新工艺并确定了最佳工艺条件:原料为2 .0000g溪黄草干粉,提取剂为95%乙醇,提取剂用量为1∶60(g∶ml),微波功率为464W,提取时间为350s,提取次数为3次。最佳工艺条件下色素的提取率为90. 6%,产率为12. 7%,色价E(1%, 330nm)为53. 3,产品pH值为6 .0。与溶剂浸提法相比,微波法提取溪黄草色素的每次提取时间由6h减小为350s,提取率从90. 4%增加到90. 6%。A new method of microwave extraction was used to extract the yellow pigment from Rabdosia serra (Maxim.) Hara. The extraction processes were investigated and the optimal conditions were determined as follows: raw material is 2.0000 g dry powder, the extraction agent is 95% alcohol, the ratio of raw material to extraction agent is 1∶60(g∶ml), microwave power is 464 W, extraction time is 350 s, extraction times is 3.Under the optimal conditions, extraction rate is 90.6%, productive rate is 12.7%, colority E(1%,330 nm)is 53.3 and pH value of the extractive is 6.0. Compared with solvent extraction, microwave extraction reduces extraction time from 6 h to 350 s and increases extraction rate from 90.4% to 90.6%.

关 键 词：溪黄草 黄色素 最佳工艺条件 协同 提取时间 95%乙醇 微波提取 微波功率 提取次数 提取剂 提取率 pH值 浸提法 微波法 

分 类 号：R284.1[医药卫生—中药学] R283.6[医药卫生—中医学]