Method for extracting glabrene and high-purity glabridin from Glycyrrhiza glabra by using ultrasonic continuous countercurrent apparatus

Abstract

Glycyrrhiza glabra is a perennial herb; the root and rhizome of Glycyrrhiza glabra are stout and have diameters in a range of 0.5 to 3 cm; the skin of the root is brown, the interior of the root is yellow, and the root tastes sweet; and wild Glycyrrhiza glabra resources are rich in regions of Greater Khingan Mountains and Inner Mongolia regions. Histocytes of the root and rhizome of Glycyrrhiza glabra have functional components with strong antioxidation activity and skin discoloration and stain fading effect, wherein the functional components are main components and consist of glabrene and glabridin. Since glabridin has strong antioxidation activity and skin discoloration and stain fading functions, glabridin gains attention and recognition and is utilized in overseas cosmetic industries; however, glabridin exists in the form of a crude product in domestic market in China due to the problems of low yield, low purity, low raw material utilization rate, high energy consumption and cost in secondary refining and purification and the like in conventional methods for extracting glabridin via supersonic waves and separating glabridin via macroporous resin. The invention provides a method for extracting glabrene and high-purity glabridin from Glycyrrhiza glabra by using an ultrasonic continuous countercurrent apparatus. With the method, the yield of a finished product can be improved by 30%.

Description

technical field [0001] The invention relates to an extraction method, in particular to a method for extracting glycyrrhizic acid and glabridin in licorice glabra by using ultrasonic continuous countercurrent equipment. Background technique [0002] In the prior art, the production of glycyrrhizic acid and glabridin is mostly extracted with relatively original multifunctional extraction tank thermal reflux macroporous resin. Extraction with this method requires high extraction temperature and low extraction rate, and, in In the production process, a large amount of waste gas and waste water will be generated, which will pollute the environment. [0003] The technical problem to be solved by the present invention is to provide a technical scheme for extracting glycyrrhizic acid and glabridin in Glycyrrhizae glabra using ultrasonic continuous countercurrent equipment. On the equipment, glycyrrhizic acid and glabridin in Glycyrrhizae glabra were extracted countercurrently with ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the production of glycyrrhizic acid and glabridin is mostly extracted with relatively original multifunctional extraction tank thermal reflux macroporous resin. Extraction with this method requires high extraction temperature and low extraction rate, and, in During the production process, a large amount of waste gas and waste water will be generated, which will pollute the environment.