桂花叶中黄酮类化合物提取工艺的研究  

Study on Extraction of Flavonoids in the Leaves of Osmanthus fragrans

作　　者：邵金华[1] 余响华[1] 董加宝[1] 朱智勇[1] 

机构地区：[1]湖南科技学院生化系,永州425100

出　　处：《食品工业》2013年第9期34-36,共3页The Food Industry

基　　金：湖南省科技厅项目(2011NK3081);湖南省高校科技创新团队支持计划资助(2012-318);湖南省重点学科建设项目资助(2011-76)

摘　　要：以桂花叶为原料,采用有机溶剂提取法对桂花叶中黄酮类化合物的提取工艺进行研究,通过单因素试验研究了不同浸提溶剂,提取时间,提取温度,乙醇体积分数,固液比对桂花叶黄酮提取率的影响,采用正交试验优化得出桂花叶中黄酮类化合物提取的最佳工艺条件为:浸提时间2 h,提温度85℃,乙醇体积分数75%,固液比1︰20(g/mL),在该条件下桂花叶黄酮提取率达1.926%。The extraction technology offlavonoids in osmanthus leaves by the method of organic solvent extraction was studied, with osmanthus leaves as the raw material. The effect of the different extraction solvent, extraction time, extraction temperature, ethanol concentration, and solid-liquid ratio on the rate of osrnanthus leaf flavonoids was studied with single factor analysis. The optimum exWaction conditions offlavonoids in osmanthus leaves are obtained with orthogonal experiment as follows： the extraction time is 2 h, the extraction temperature is 85 ℃, the ethanol concentration is 75%, the solid-liquid ratio is 1 ： 20 （g/mL）, and the exWaction rate is 1.926%.

关 键 词：桂花叶 黄酮 提取 工艺 

分 类 号：TQ461[化学工程—制药化工]