WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 4 - WAC - Posters 9 The development of a simple electrochemical method based on molecularly imprinted polymers for the selective determination of caffeic acid in wine

The development of a simple electrochemical method based on molecularly imprinted polymers for the selective determination of caffeic acid in wine

Abstract

Caffeic acid (CA) is an antioxidant of great importance in the food sector, such as wine, where it acts as a marker of wine ageing, as well as in the health sector due to its antioxidant properties and beneficial effects including the prevention of inflammation, cancer, neurodegenerative diseases, and diabetes. A simple and fast electrochemical method was developed for the determination of caffeic acid in a hydroalcoholic medium, based on a molecular imprinted polymer (MIP) in order to highlight the specificity and selectivity of the polymer. A MIP specific to CA was synthesized by the radical polymerization process, using N-phenylacrylamide (N-PAA), tetraethoxysilane (TEOS), ethylene glycol dimerhacrylate (EGDMA) and azobisisobutyronitrile (AIBN) in the presence of CA as template molecule and under thermal conditions (60°C). Screen-printed carbon electrodes were used in the electrochemical measurements without any pre-treatment or modification of their surface, in order to ensure the simplicity of the method. Cyclic voltammograms were applied at a scan rate of 50mV/s, from -0.4 to 0.8 V, and showed that, at pH3, the polymer presented good stability and repeatability regarding CA determination. In addition, it exhibited high selectivity towards CA compared to other interferents with similar structures. Furthermore, the polymer was successfully tested for the detection of CA in wine.

DOI:

Publication date: June 27, 2022

Issue: WAC 2022

Type: Article

Authors

Marie EL HACHEM, Elias Bou-Maroun, Richard G. Maroun, Philippe Cayot, Maher Abboud

Presenting author

Marie EL HACHEM – UMR PAM, Procédés Alimentaires et Microbiologiques, Bourgogne Franche-Comté University, AgroSup Dijon, France

UMR PAM, Procédés Alimentaires et Microbiologiques, Bourgogne Franche-Comté University, AgroSup Dijon, France | Centre d’Analyses et de Recherche, Laboratoire CTA, UR TVA, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon | UMR PAM, Procédés Alimentaires et Microbiologiques, Bourgogne Franche-Comté University, AgroSup Dijon, France | UEGP Unité Environnement, Génomique et Protéonique, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon, ,

Contact the author

Keywords

Caffeic acid- health benefits-electrochemistry-molecularly imprinted polymer-screen-printed carbon electrodes

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Effect of SO2, GSH and gallotannins on the shelf-life of a cortese white wine

Studying the effect of the addition of reduced glutathione (GSH) and/or gallotannins at bottling to limit the use of SO2 in white winemaking.

Vineyard’s ozone application to induce secondary metabolites accumulation in grapes and wine

In viticulture sector to find new tools for pest management has become an urgent necessity. Hence, grapevines cultivation has high production rate demand and to meet the intensive market request, a massive use of pesticides is often required. In addition to the environmental problems associated with large use of chemicals, there is an increasing number of consumers which are asking for

Prove preliminari dl caratterizzazione del vino gutturnio dei colli piacentini

The “GuIturnio dei Colli Piacentini” V.Q.PR.D. results from the vinification of Barbera (55-70%) and Bonarda (30-40%) cultivars, grown in the hilly area of the Piacenza district, identified by the DM 31-07-93 art. 3.
The present work concerns the “zonation” of this area, constituted by 3 valleys Tidone (A), Nure (B) and Arda (C )

Impact of electrolyzed water applied as an alternative treatment in vineyard on grape and wine quality

The main issues in viticulture are to highly decrease the use of phytochemicals. Electrolyzed water (EW) is one of the possible alternative when illness pressure is not too high

Overview on wine and health 32 years after the French paradox 

Phenolic compounds or polyphenols are the most abundant and ubiquitous secondary metabolites present in the plant kingdom with more than 8000 phenolic structures currently known. These compounds play an important role in plant growth and reproduction, providing protection against biotic and abiotic stress such as pathogen and insect attack, UV radiation and wounding. (poly)phenols are widely distributed in the human diet mainly in plant-derived food and beverages (fruits, vegetables, nuts, seeds, herbs, spices, tea and red wine).