微波辅助提取落叶松树皮原花青素及其条件优化  

Microwave-assisted Extraction of Oligomeric Proanthocyanidins from Larch Bark and Optimization

作　　者：孙晓薇[1] 李丽丽[1] 王涵[1] 牟晓飞[1] 杨磊[1] 祖元刚[1] 

机构地区：[1]东北林业大学森林植物生态学教育部重点实验室,哈尔滨150040

出　　处：《食品工业》2012年第1期35-39,共5页The Food Industry

基　　金：黑龙江省自然科学基金(C201114);东北林业大学研究生科技创新项目(2010)资助

摘　　要：采用微波辅助提取法来提取落叶松树皮中的原花青素。以得率和纯度为指标,探索落叶松树皮原花青素微波辅助提取的最佳条件,在单因素试验的基础上,采用Box-Behnken试验设计法进行了优化。确定的最佳提取工艺参数为:乙醇体积分数50%、料液比1∶10、微波功率230 W、提取时间10 min、提取2次。在此条件下落叶松树皮原花青素的得率和纯度分别达到9.82%和43.32%。结果表明微波辅助法提取落叶松树皮中的原花青素,具有质量稳定、速度快、萃取效率高等特点。Microwave-assisted extraction was used to extract proanthocyanidins from larch bark.Using yield and purity of proanthocyanidins as index Box-Behnken design based on a single factor experiments that were employed for the optimization of microwave-assisted extraction of proanthocyanidins from larch bark.The optimum conditions for the extraction were as follows： ethanol concentration 50%,ratio of solid to liquid 1∶10,microwave output power 230 W,extraction time 10 min and extraction 2 times.With the optimum extraction conditions,the yield and purity proanthocyanidins from larch bark were 9.82% and 43.32%,respectively.Results showed that microwave-assisted extraction was efficient,stable and rapid for extraction proanthocyanidins from larch bark.

关 键 词：落叶松树皮 原花青素 微波辅助提取 响应面 

分 类 号：TQ914.1[化学工程]