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dc.contributor.authorArmellini R
dc.contributor.authorCompagnone D
dc.contributor.authorScampicchio M
dc.contributor.authorPittia P
dc.contributor.editor
dc.date.accessioned2017-11-21T13:40:59Z
dc.date.available2017-11-21T13:40:59Z
dc.date.issued2017
dc.identifier.issn1040-0397
dc.identifier.urihttp://dx.doi.org/10.1002/elan.201600325
dc.identifier.urihttp://onlinelibrary.wiley.com/wol1/doi/10.1002/elan.201600325/abstract
dc.identifier.urihttp://hdl.handle.net/10863/4099
dc.description.abstractSaffron is an edible spice with highly appreciated sensory and antioxidant properties. One of the most representative redox species found in saffron extracts is crocin, whose content is used to evaluate the quality and value of the resulting spice. In this study, a voltammetry method based on the direct detection of crocin at a bare glassy carbon electrode is presented. The principle of the method is based on the monitoring of the anodic wave exhibited by crocin (0.1-1.0mM) after its mixing with the azo radical initiator AAPH (20mM) in ethanol:acetonitrile (1:1) solution. The decay rate of the anodic peak (E=+434mV vs. Ag/Ag+), as a result of the consumption of crocin by AAPH, was used as index of the hydrogen transfer capacity and, thus, of its antioxidant activity. With a decay rate of k=0.02h(-1), crocin exhibits only a weak antioxidant activity in comparison with tocopherols (k=0.13h(-1)), but still sufficient to protect against the oxidation of safranal, a further redox species found in saffron extracts and mainly responsible for its flavor. The proposed approach was finally applied to discriminate saffron extract samples from different geographical origins. The proposed approach is suitable to characterize the quality of saffron extracts and estimate its antioxidant properties.en_US
dc.language.isoenen_US
dc.rights
dc.subjectSaffronen_US
dc.subjectAntioxidant activityen_US
dc.subjectSafranalen_US
dc.subjectCrocinen_US
dc.subjectElectrochemical detectionen_US
dc.subjectAntioxidantsen_US
dc.subjectAGR/15en_US
dc.titleHydrogen and Atom Transfer Activity of Saffron Extracts by Square Wave Voltammetryen_US
dc.typeArticleen_US
dc.date.updated2017-07-31T10:25:32Z
dc.publication.title
dc.language.isiEN-GB
dc.journal.titleElectroanalysis
dc.description.fulltextreserveden_US


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