摘要
采用微波辅助提取的方法从高山红景天中提取功能性成分红景天苷,研究固液比、微波辐照时间、预浸时间和乙醇浓度四因素对红景天苷提取率的影响。根据回归方程,采用降维方法讨论乙醇浓度对红景天苷提取率的单因子效应,并讨论了乙醇浓度和预浸时间之间的交互作用。结果表明微波功率为130 W,20%(v/v)乙醇作提取溶剂,固液比为1:29(g/mL),微波辐照时间60 s时,红景天苷的一次提取率达到80%。与传统的乙醇回流法相比,微波1 min提取两次和采用传统乙醇加热回流120 min提取四次的结果相差不大,但传统回流的乙醇消耗量为微波提取的2倍,热耗大。
Microwave-assisted extraction method (MAE) was used for the extraction of salidroside from Rhodiola Sachalinensis A.Bor.The key factors,solid/liquid ratio,irradiation time,pre-marination time and ethanol concentration were investigated to optimize the extraction process using four factors quadratic orthogonal rotation design.Ethanol concentration greatly influenced the extraction efficiency of salidroside via single factor effect equation.The interaction of ethanol concentration and pre-marination time was ...
出处
《天然产物研究与开发》
CAS
CSCD
2008年第2期353-356,共4页
Natural Product Research and Development
关键词
红景天苷
微波辅助提取
旋转组合设计
优化
提取率
salidroside
microwave-assisted
orthogonal rotation design
optimization
extraction yield
