Developed a method to separate and enrich the immunocompetence constituent cichoric acid from the extracts of Echinacea purpurea with macroporous adsorption resin,by eluting with 7% (v/v) CH 3OH-H 2O.

• 采用大孔吸附树脂分离纯化紫锥菊提取物中免疫活性成分菊苣酸 ,7%25 (v/v)的甲醇 水溶液洗脱 ,HPLC法对产品中菊苣酸含量进行检测分析。