车前草超微粉黄酮的提取工艺研究  

Influence of Superfine Grinding Technology on Extracting Flavones from Plantain

作　　者：李明娟[1,2] 朱琪[1] 刘柳成[1] 李荣东[2] 

机构地区：[1]邵阳医学高等专科学校,湖南邵阳422000 [2]湖南中医药大学,湖南长沙410000

出　　处：《中药材》2013年第8期1335-1339,共5页Journal of Chinese Medicinal Materials

基　　金：湖南省教育厅科学研究项目基金(11C1155);邵阳市科技计划项目资金(J1150)

摘　　要：目的:研究车前草超微粉黄酮提取的最佳工艺。方法:以经过超微粉碎后的车前草为原料,经适当浓度乙醇超声提取后,用盐酸水解黄酮苷,再采用反相高效液相色谱测定黄酮苷元含量。结果:车前草超微粉在提取液为60%乙醇,提取温度为60℃,料液比(g:mL)为1∶25的条件下超声提取15 min,黄酮类化合物的提取率最高,其黄酮苷元含量高于同法提取的常规粉末。结论:采用超微粉碎技术能提高车前草黄酮苷元的提取率,优化了车前草超微粉提取黄酮的方法。Objective：To study the influence of superfine grinding technology on extracting flavones from plantain and explore its optimum extraction technology. Methods ： Ultrasonic technology was used to extract the flavones in superfine grinding plantain, the con- tent of flavone glycosides was determined by RP-HPLC. Results ： The optimum technology was as follows ： the concentration of ethanol was 60%, temperature was 60~C, solid -liquid ratio（g：mL） was 1：20 and extraction time was 20 min. Under these conditions, fla- vonoids extraction rate of superfine grinding powder was higher than that of conventional powder. Conclusion：The technology of superfine grinding can improve flavonoids extraction rate in plantain. An optimum method for extracting flavonoids from superfine granding plantain is established.

关 键 词：超微粉碎 车前草 黄酮提取 

分 类 号：R286.1[医药卫生—中药学]