The perservative in liquid beverage was extrcated with n-hexane.The hexane layer was subjected to cyclodextrine polymer resin colume.The colume was eluted with aqueous solution of ethanol.

用正己烷萃取液体饮料中的防腐剂，使萃取液经分离后，用乙醇溶液洗脱。

Main compositions: Spring water extract, VA acid, Protein complex, Extract of sweet tea, Sorbierite extract.

温泉水华、VA酸、蛋白复合物、甜茶萃取液、山梨醇华。