Procedure for obtaining hydroxytyrosol extract, extract mixture of hydroxytyrosol and 3,4-dihydroxyphenylglycol, and hidroxitirosilo acetate extract, from by-products of the olive and its purification.

摘要

Procedure for obtaining hydroxytyrosol extract, extract mixture of hydroxytyrosol and 3,4-dihydroxyphenylglycol, and hidroxitirosilo acetate extract, from by-products of the olive and its purification. # Procedure for obtaining an extract comprising hydroxytyrosol, well as acetylated product or as a mixture with 3.4 dihydroxyphenylglycol and purification of all of them, comprising at least one column chromatography a source of hydroxytyrosol as byproducts of olives and olive using a mixture of at least two ionic resins preferably an anionic resin with a cationic resin. Preferably in a first stage a mixture Hydroxytyrosol 3-4-dihydroxyphenylglycol (DHFG a liquid rich source of phenols is obtained as raw material for the extraction and purification of phenolic compounds, a second phase allows to obtain an enriched hydroxytyrosol (HT) extract ) and ethyl hidroxitirosilo occurs, obtaining in the third very pure hydroxytyrosol phase, the DHFG, their mixture and ethyl HT. Each phase comprises extraction, reaction, concentration, adsorption and desorption using mixtures of ion exchange resins, adsorption resins and nonionic polymeric phenolic fraction, reverse osmosis membranes and / or evaporators.