Process for extracting licoflavone, lycyrrhizic acid and licopolyose from liquorice root

Abstract

A process for extracting licoflavone, glycyrrhizic acid and licopolyose from licorice root incldues such steps as extracting licoflavone using alcohol, extracting glycyrrhizic acid from residual dregs using alkaline clean water, boiling its residual dregs in clean water, and alcohol separating to prepare licopolyose. Its advantages are continuous extraction and the highest utilization rate.

Description

technical field

[0001] The invention belongs to the fields of medicine and chemical industry, in particular to a method for continuously extracting licorice flavonoids, glycyrrhizic acid and licorice polysaccharide from licorice. Background technique

[0002] Licorice flavonoids, glycyrrhizic acid, and licorice polysaccharides are the main pharmacologically active ingredients in licorice. The existing extraction technology is intermittent. Usually, a set of systems is used to simply extract glycyrrhizic acid or extract licorice flavonoids or licorice polysaccharides from the residue and waste liquid after extraction. , the Chinese patent "a kind of licorice cream and its production process" (CN1144105) discloses a method for extracting glycyrrhizin from licorice and then extracting licorice flavonoids from the residue. As far as the chemical structure of each component in licorice is concerned, unreasonable segmentation and extraction methods are used, resulting in some stro...