Process for obtaining hydroxytyrosol from olive leaves extracts

摘要

The present invention refers to a new process for obtaining hydroxytyrosol, by
<UnorderedLists id="ula01" listStyle="none" compact="compact"><ListItem>(a) subjecting extracts of olive leaves to hydrolysis in order to obtain an aqueous mixture which is rich in hydroxytyrosol,</ListItem><ListItem>(b) mixing the intermediate thus obtained with a micro porous resin in order to adsorb the hydroxytyrosol on said matrix and to keep the unwanted by-products within the aqueous phase, and finally</ListItem><ListItem>(c) separating the matrix from the aqueous phase and desorbing the hydroxytyrosol by means of a suitable solvent.</ListItem></UnorderedLists>