不同提取方法对霉茶中总黄酮含量的影响  

Influence on Content of Total Flavone in Meicha by Different Extraction

作　　者：郑国华[1] 许洁[2] 李能发[2] 

机构地区：[1]辽宁中医学院 [2]湖北中医学院

出　　处：《湖北中医学院学报》2006年第1期35-36,共2页Journal of Hubei College of Traditional Chinese Medicine

基　　金：湖北省教育厅科研项目;[2004J001]

摘　　要：目的优选霉茶提取工艺,并比较水提和醇提工艺。方法选用L9(34)正交表优选提取条件,以紫外分光光度法测定总黄酮的含量。结果水提最佳工艺总黄酮含量为17.13%,醇提最佳工艺总黄酮含量为25.06%。结论醇提工艺优于水提工艺,最佳工艺为9倍量的70%乙醇,提取3次,每次1 h。Objective： To establish the extraction technology of Meicha and compare the different solvents-water and ethanol. Methods： Selecting orthogonal table L9 （3^4）： to optimize the extraction technology and measure the total flavone by ultraviolet spectrophotometry. Results： The content of total flavone extracted with water is 17. 13% and 25. 06% with ethanol. Conclusion.. It is better to distill it with ethanol than water. The best optimistic extraction technology is. 9 times ethanol of 70%, distill 3 times, 1 hour per time.

关 键 词：霉茶 正交试验 总黄酮 提取工艺 

分 类 号：R284.2[医药卫生—中药学]