响应面法优化超声波辅助提取珙桐叶没食子酸的工艺条件研究  

Optimization of Extraction Process for Gallic Acid from Leaves of Davadia involucrata by Response Surface Methodology

作　　者：方志荣[1] 蒋召雪[1] 张宇[1] 刘方农[1] 

机构地区：[1]西昌学院动物科学学院,四川西昌615000

出　　处：《河北农业科学》2014年第6期99-102,共4页Journal of Hebei Agricultural Sciences

基　　金：四川省教育厅项目(08zb015);西昌学院院自立项目(ZZSSA0808)

摘　　要：在单因素试验的基础上,选取提取温度、盐酸浓度、料液比3个主要因素,以没食子酸得率为响应值,对超声波辅助提取珙桐叶中没食子酸的工艺条件进行了优化。结果表明:没食子酸的最佳提取工艺为盐酸浓度2.0 mol/L、提取温度65.6℃、料液比40 m L/g、超声时间30 s,在此条件下没食子酸得率为10.26%。采用超声波辅助法提取珙桐叶中的没食子酸,提取时间短、得率高,具有广阔的应用前景。On the basis of single factor tests,extraction temperature,concentration of hydrochloric acid and acidto-material ratio affecting extraction rate of gallic acid were optimized using response surface methodology.The results showed that the optimum extraction process were as follows,concentration of hydrochloric acid 2 mol / L,extraction temperature 65.6 ℃,acid-to-material ratio 40 m L / g and ultrasonic duration 30 s.Under this condition,extraction rate could reach 10.26%.Short in extraction duration and high in extraction rate,ultrasonic extraction will be promising.

关 键 词：珙桐 没食子酸 响应面法 超声波提取 

分 类 号：O657.32[理学—分析化学]