Abstract
Cyclic voltammetry and chronoamperometry at two different potentials of +500 and +800 mV was applied to nine commercial dry red wines of five different vintages in order to study their capability in oxidation. A plateau in a certain potential range of +0.82 ± 0.04 V obtained for all investigated wine samples revealed the presence of oxidation mechanisms with successive oxidation steps. Chronoamperometric data at +800 mV were found to be consistent with data coming from the antioxidant protocol against 1,1-diphenyl-2-dipicrylhydrazyl (DPPH). Indeed, the results showed a positive correlation of chronoamperometric signal of wine samples at +800 mV with their reactivity towards DPPH, expressed as Trolox equivalents, followed by satisfactory statistics. Therefore, the chronoamperometric signal of wine samples can be considered as a friendly alternative for the rapid screening of antioxidant properties of wine samples.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
