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Published on: 11/04/2018

Electroanalytical approach for the study of wine antioxidants

BRIEF description

Cyclic Voltammetry (CV) is a powerful electroanalytical technique for the study of antioxidant molecules.

In the present study, CV was used, in addition to conventional analytical determinations (e.g. spectrophotometry, HPLC), to investigate the behavior of some of the most common wine antioxidants.

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DESCRIPTION

Cyclic Voltammetry (CV) is a powerful electroanalytical technique for the study of antioxidant molecules.

In the present study, CV was used, in addition to conventional analytical determinations (e.g. spectrophotometry, HPLC), to investigate the behavior of some of the most common wine antioxidants.

Sulfur dioxide, ascorbic acid (ASC), glutathione (GSH) and an inactive dry yeast preparation were compared in different concentrations, to assess their ability in protecting (+)-catechin, in wine-like solution.

The antioxidants tested demonstrated different activities, connected not only with their intrinsic antioxidant characteristics, but also to the average concentration, they may have in wine. CV results were in agreement with conventional analytical parameters, demonstrating the potential of this technique for the study of wine oxidation.

Finalist of the International SIVE OENOPPIA awards 2017. The paper reproduced in this video-seminar was presented at the 10th edition of Enoforum (May 16th-18th, 2017, Vicenza, Italy)

Piergiorgio Comuzzo | Dipartimento di Scienze Agroalimentari, Ambientali ed Animali, Università di Udine, Italy

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