茶叶总黄酮类物质的微波辅助提取研究  

Research on the Total Flavonoid of Tea by Microwave-Assisted Extraction

作　　者：张泽志[1] 李玉[2] 高霞[1] 李成未[1] 林钰[1] 

机构地区：[1]河南教育学院应用化学重点学科组,河南郑州450046 [2]郑州大学化工与能源学院,河南郑州450001

出　　处：《河南教育学院学报（自然科学版）》2012年第2期5-7,共3页Journal of Henan Institute of Education(Natural Science Edition)

基　　金：河南省科技攻关计划项目(092102310348)

摘　　要：采用微波辅助提取茶叶总黄酮类物质,通过单因素实验和正交实验,对影响微波辅助提取总黄酮提取率的因素进行探讨.结果表明:以80%乙醇为提取溶剂,最佳提取工艺条件为:A3B2C3,即微波功率648 W,微波提取时间为4 min,料液比为1∶45(g/mL),测得茶叶总黄酮提取率为9.54 mg/g,各因素对总黄酮提取率的影响程度为提取功率>提取时间>料液比.The microwave-assisted extraction of tea flavonoid, through the single factor and orthogonal experiments, was investigated to optimize the factors affecting the extraction rate of total flavonoid. The results showed that extract rate of tea total flavonoid reached to 9.54 mg/g under the optimum extraction conditions A3B2C3 ： 80% ethanol a- queous solution as the extracting solvent, the microwave power of 648 W, the microwave extraction time of 4 min, the solid to liquid ratio of 1：45 （g/mL）. The effects of factors on the extraction rate of total flavonoid were extract power 〉 extraction time 〉 solid-liquid ratio.

关 键 词：茶叶 黄酮类物质 微波辅助提取 正交实验 

分 类 号：TQ028.7[化学工程]