Application of negative pressure cavitation extraction (NPCE) on total phenolic compound extraction from Millettia sericea root

Abstract

Production of total phenolic compounds from Millettia sericea roots was carried out using the NPCE method. This study aims to determine the effect of solvent concentration (60, 70, 80, 90%) and negative pressure (-0.4, -0.5, -0.6, -0.7 bar) in the NPCE system on Millettia sericea roots and investigate the increase in extraction yield compared to maceration methods. According to the results of the investigation, the best solvent concentration resulted from 70% methanol and -0.7 bar negative pressure. The results of the comparison of the NPCE extraction method with maceration exhibited a high escalate in extraction yield more than 3 times compare to maceration methods.