Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Microemulsion versus emulsion as effective carrier of hydroxytyrosol
Δημιουργός/Συγγραφέας:	Chatzidaki M.D. Arik N. Monteil J. [EL] Παπαδημητρίου, Βασιλική[EN] Papadimitriou, Vassiliki Leal-Calderon F. [EL] Ξενάκης, Αριστοτέλης[EN] Xenakis, Aristotelis
Εκδότης:	Elsevier B.V.
Ημερομηνία:	2016
Γλώσσα:	Αγγλικά
ISSN:	0927-7765
DOI:	10.1016/j.colsurfb.2015.04.053
Άλλο:	PubMed ID: 25999235
Περίληψη:	Two edible Water-in-Oil (W/O) dispersions, an emulsion that remains kinetically stable and a microemulsion which is spontaneously formed, transparent and thermodynamically stable, were developed for potential use as functional foods, due to their ability to be considered as matrices to encapsulate biologically active hydrophilic molecules. Both systems contained Medium Chain Triglycerides (MCT) as the continuous phase and were used as carriers of Hydroxytyrosol (HT), a hydrophilic antioxidant of olive oil. A low energy input fabrication process of the emulsion was implemented. The obtained emulsion contained 1.3% (w/w) of surfactants and 5% (w/w) aqueous phase. The spontaneously formed microemulsion contained 4.9% (w/w) of surfactants and 2% (w/w) aqueous phase. A comparative study in terms of structural characterization of the systems in the absence and presence of HT was carried out. Particle size distribution obtained by Dynamic Light Scattering (DLS) technique and interfacial properties of the surfactants' layer, examined by Electron Paramagnetic Resonance (EPR) spectroscopy indicated the involvement of HT in the surfactant membrane. Finally, the proposed systems were studied for the scavenging activity of the encapsulated antioxidant toward galvinoxyl stable free radical showing a high scavenging activity of HT in both systems.
Τίτλος πηγής δημοσίευσης:	Colloids and Surfaces B: Biointerfaces
Τόμος/Κεφάλαιο:	137
Σελίδες:	146-151
Θεματική Κατηγορία:	[EL] Χημεία (Γενικά)[EN] Chemistry (General)
Λέξεις-Κλειδιά:	Antioxidant activity DLS Emulsion EPR Hydroxytyrosol Microemulsion
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2015 Elsevier B.V..
Σημειώσεις:	MIS 447985; European Commission, EC; European Regional Development Fund, FEDER. This work was funded by the French Carnot Institute LISA: Lipids for Industry Safety and Health (2012) and by STHENOS project (MIS 447985) within GSRTʼs KRIPIS action, funded by Greece and the European Regional Development Fund of the European Union under the O.P. Competitiveness and Entrepreneurship, NSRF 2007-2013 and the Regional Operational Program of Attica.
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο