title: A comparison among three different analytical methods to test the scavenging properties of different integrators against radicalic stress.
abstract: The aim of the present work was to experimentally evaluate the total antioxidant capacity of different commercially available pharmaceutical integrators based on vitamin E, astaxanthin, resveratrol and blueberry using the traditional DMPD-FeCl3 spectrophotometric method and the ORAC spectrofluorimetric method, largely discussed and described in literature and considered as reference methods. The results were compared with those ones obtained with a biosensor based on superoxide dismutase (SOD) enzyme. Precision of antioxidant capacity measures for all integrators was good, generally with a R.S.D.% <10% for all methods employed. An evaluation was also performed of the possible influence on the total integrator antioxidant capacity from other compounds and/or excipients present in the formulations which can interfere with the main antioxidant component of the commercial integrator.
authors.affiliation: Department of Chemistry and Drug Technologies, Sapienza Università di Roma, Piazzale Aldo Moro 5, Rome, Italy.
authors.forename: Riccarda
authors.initials: R
authors.lastname: Antiochia
authors.affiliation: Department of Chemistry, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
authors.forename: Tania
authors.initials: T
authors.lastname: Gatta
authors.forename: Elisa
authors.initials: E
authors.lastname: Mazzone
authors.affiliation: Department of Chemistry and Drug Technologies, Sapienza Università di Roma, Piazzale Aldo Moro 5, Rome, Italy.
authors.forename: Luisa
authors.initials: L
authors.lastname: Mannina
authors.affiliation: Department of Chemistry, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Campanella
mesh_terms: D000975:Antioxidants / Q000494:pharmacology; D015374:Biosensing Techniques; D016166:Free Radical Scavengers / Q000494:pharmacology*; D013053:Spectrophotometry; D013312:Stress, Physiological
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers