Process for extracting purified glycyrrhizic acid from licorice residue

Original document(5 pages) 中文版

The method for extracting glycyrrhizic acid from licorice dregs and purifying it includes the following steps: supercritical licorice dregs drying, ultrasonic extracting, acidifying, soaking to make extraction, salifying, recrystallizing, drying to obtain ammonium glycyrrhizinate. Said invention has the characteristics of quick extraction speed, high extraction rate, small impurity content and easy purification, etc.

Application Number 申请号	02109474	Application Date 申请日	2002.04.10
Title 名称	Process for extracting purified glycyrrhizic acid from licorice residue
Publication Number 公开号	1450081	Publication Date 公开日	2003.10.22
Approval Pub. Date		Granted Pub. Date
International Classification 分类号	C07J63/00
Applicant(s) Name 申请人	Northeast Forestry Univ.
Address 地址	150040
Inventor(s) Name 发明人	Zu Yuangang, Fu Yujie
Attorney & Agent 代理人

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