Premium
Effect of salts on the solubility of phenolic compounds: experimental measurements and modelling
Author(s) -
Noubigh Adel,
Mgaidi Arbi,
Abderrabba Manef,
Provost Elise,
Fürst Walter
Publication year - 2007
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2762
Subject(s) - solubility , chemistry , vanillic acid , vanillin , gallic acid , acid dissociation constant , dissociation constant , chloride , activity coefficient , protocatechuic acid , organic chemistry , aqueous solution , inorganic chemistry , biochemistry , receptor , antioxidant
Phenolic compounds can be found in industrial or agricultural waste, such as waste water from olive mills. Because of the environmental problem caused by this residue from olive oil production, the aim of this work was to model the effect of salts on the solubility of four phenolic compounds. For this purpose, the solubilities of gallic acid, protocatechuic acid, vanillic acid and vanillin have been measured in various chloride solutions at constant temperature. The Clegg–Simonson–Pitzer activity coefficient, together with the dissociation constant obtained from the literature, has been used to represent the equilibrium solid‐liquid data. Good agreement (3.4%) between the experimental and calculated values for solubility was obtained. Copyright © 2007 Society of Chemical Industry