presentation de la solubilité d'antioxydants dans le CO2 supercritique par un modéle générique basé sur la densité

Abstract

In this work we presented a generic density-based model to model the solubility of four polyphenols (types of antioxidants) Gallic acid, carnosic acid, epicatechin, and quercetin in a ternary mixture (polyphenol + dioxide of supercritical carbon-ethanol as a Co-solvent (modifier)). The solubility’s data of these polyphenols were collected from the literature and a group of different parameters were proposed for this generic model in order to evaluate their effects and find the best set for each polyphenols. The results show that the Rubio model and its parameters are useful in the calculation of the solubility data of polyphenols.