METHOD OF OBTAINING A NATURAL HYDROXYTYROSOL-RICH CONCENTRATE FROM OLIVE TREE RESIDUES AND SUBPRODUCTS USING CLEAN TECHNOLOGIES

A process of obtaining a natural, bioactive concentrate, rich on hydroxytyrosol, from olive tree residues and subproducts using clean technologies is presented. These technologies comprise supercritical fluid extraction, nanofiltration and reverse osmosis which are used individually or in an integra...

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Hauptverfasser:	CARDADOR DOS SANTOS, JOSE LUIS, SEREJO GOULAO CRESPO, JOAO PAULO, FIGUEIREDO MATIAS, ANA ALEXANDRA, MORGADO MARQUES NUNES, ANA VITAL, MARTINS DUARTE, CATARINA MARIA, DE MAGALHAES NUNES DA PONTE, MANUEL LUIS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Zusammenfassung:	A process of obtaining a natural, bioactive concentrate, rich on hydroxytyrosol, from olive tree residues and subproducts using clean technologies is presented. These technologies comprise supercritical fluid extraction, nanofiltration and reverse osmosis which are used individually or in an integrated mode. The natural extract comprises hydroxytyrosol at a minimum concentration of 15% (mass fraction) and a maximum concentration of 98% (mass fraction). The hydroxytyrosol-rich concentrate exhibits anti-oxidant, anti-microbial, anti-inflammatory and anti-carcinogenic activities, which are superior to the activities observed for isolated hydroxytyrosol in equivalent concentration. The hydroxytyrosol-rich concentrate can be prepared in the form of solid particles, as an aqueous solution, in an emulsion or as lipidic based nanoparticles. Industrial application includes the food, pharmaceutical and cosmetics industries.