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Abstract Title:

Enrichment of total flavones and licochalcone A from licorice residues and its hypoglycemic activity.

Abstract Source:

J Chromatogr B Analyt Technol Biomed Life Sci. 2019 May 1 ;1114-1115:134-145. Epub 2019 Jan 31. PMID: 30878379

Abstract Author(s):

Zhonghua Luo, Zhenghong Guo, Ting Xiao, Hairong Liu, Guangyue Su, Yuqing Zhao

Article Affiliation:

Zhonghua Luo

Abstract:

Industrial processing of glycyrrhizic leads to a lot of residues which are usually threw away randomly or used as feed. Therefore, the purpose of this study was to study licorice residues as a source of bioactive compounds with potentially applications. In this study, the enrichment and purification of total flavones from the licorice residues was achieved by using macroporous resins. The performances and separation characteristics of four selected macroporous resins with different chemical and physical properties were investigated. HPD-100 resin was the most effective, the content of total flavones increased from 50.94% in the original extract to 82.98% in the 80% ethanol fraction (a 1.63-fold increase). Further purification treatment by polyamide resin, licochalcone A with a purity of 80.28% was obtained in a 45% ethanol fraction, and a higher purity (>85%) of licochalcone A can be obtained by single crystallization operation. And hypoglycemic effect of the total flavones from licorice residues on high fat diet and STZ induced diabetic c57 mice was preliminary investigated. The results showed: the fasting blood glucose of mice in the low and medium dose total flavones group decreased significantly. The proposed technique is uncomplicated, easily managed, cost-effective, and environmentally friendly and is proper for both large-scale licorice residues application and waste management.

Study Type : Animal Study

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