METHODS Orthogonal design was used in optimizing the experiment condition for water quantity,extraction time and times,while total chlorogenic acid and extract dry weight were adopted as markers.

• 方法以绿原酸转移率及干浸膏收率为指标,用正交实验来考查加入量、提取时间、提取次数对绿原酸提取效果的影响。