ULTRASONIC ASSISTED EXTRACTION OF GLYCYRRHIZIC ACID FROM LICORICE
Keywords:
Ultrasonic, extraction, Licorice, glycyrrhizic acid, sonication timeAbstract
The present work investigates the ultrasonic assisted extraction of glycyrrhizic acid (GA) from Licorice. The
effect of sonication time, solid to solvent ratio on the yield of extraction has been investigated. It has been observed from
the obtained results that maximum yield of 26 mg glycyrrhizic acid / g of Licorice is obtained in 60 min at 30 0C using
40:1 (water: Licorice) ratio. To compare the efficacy of extraction, experiments are also carried out using conventional
batch extraction at already optimized parameters. It is observed that ultrasound assisted extraction results in higher
yield and reduction in the extraction time as compared to conventional process. The current work has clearly established
the advantage of ultrasound-assisted extraction compared to the conventional extraction processes.