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当前位置: 首页 > 文章 > 白花蛇舌草中黄酮提取工艺的优化及其结构鉴定 安徽农业科学 2011,39 (1) 131-133+136
Position: Home > Articles > Optimization of Extraction Process of Flavonoids from Hedyotis diffusa and Identification of Its Structure Journal of Anhui Agricultural Sciences 2011,39 (1) 131-133+136

白花蛇舌草中黄酮提取工艺的优化及其结构鉴定

作  者：
张彩霞;蔡定建;方文英
单  位：
江西理工大学材料与化学工程学院
关键词：
白花蛇舌草;黄酮;微波提取;正交试验
摘  要：
[目的]采用微波辅助提取白花蛇舌草(Hedyotis diffusa)中的黄酮类化合物,并优化其提取工艺,对提取物的化学结构进行鉴定,为白花蛇舌草药用价值的进一步开发提供参考。[方法]用正交试验优化白花蛇舌草黄酮类化合物的最佳提取工艺条件,通过紫外光谱、红外光谱等对提取物的化学结构进行表征。[结果]影响黄酮提取率的因素主次顺序为:提取温度>乙醇浓度>提取时间>料液比;最佳提取工艺为:乙醇浓度为80%,提取时间为40min,料液比为1∶40,提取温度为80℃,在此条件下白花蛇舌草中黄酮的提取率达2.86%。白花蛇舌草的黄酮类化合物主要成分为黄酮醇类。[结论]该研究为白花蛇舌草药用价值的进一步开发提供了参考。
译  名：
Optimization of Extraction Process of Flavonoids from Hedyotis diffusa and Identification of Its Structure
作  者：
ZHANG Cai-xia et al (College of Material and Chemistry Engineering,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000)
关键词：
Hedyotis diffusa;Flavonoids;Microwave extraction;Orthogonal test
摘  要：
[Objective]To optimize the extraction process of flavonoids from Hedyotis diffusa and identify its structure,so as to provide reference for the further development of the medicinal value of Hedyotis diffusa. [Method] By employing single factor test and orthogonal test,the extraction process of flavonoids from Hedyotis diffusa was opitimized. Its chemical structure was identified by UV and IR analysis. [Result] The influencing order of each factor on the yield of flavonoids was determined to be extraction temperature>concentration of ethanol > extraction duration>solid to liquid ratio,and the optimal extraction conditions were as follows:80% of ethanol concentration,40 min of extraction duration,1∶40 of solid to liquid ratio and 80 ℃ of extraction temperature. The yield of flavonoids from Hedyotis diffusa was up to 2.86% under the optimum extraction conditions. The flavonoids from Hedyotis diffusa were rich in flavonol. [Conclusion] The study provides reference for the further development of the medicinal value of Hedyotis diffusa.

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