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Sensors 2018, 18(8), 2584; https://doi.org/10.3390/s18082584

Electronic Tongue for Brand Uniformity Control: A Case Study of Apulian Red Wines Recognition and Defects Evaluation

1
Laboratory of Artificial Sensory Systems, ITMO University, 197101 St. Petersburg, Russia
2
Department of Chemical Sciences and Technology, University ‘Tor Vergata’, 00133 Rome, Italy
3
Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia
This paper is an extended version of our paper published in Lvova, L.; Di Natale, C.; Paolesse, R. Electronic Tongue Based on Porphyrins for Apulian Red Wines Defects Detection. In Proceedings of the ISOCS/IEEE International Symposium on Olfaction and Electronic Nose (ISOEN), Montreal, QC, Canada, 28–31 May 2017; and Lvova, L.; Di Natale, C.; Paolesse, R. E-tongue based on Porphyrin Electropolymers for Apulian Red Wines Defects Detection. Proceedings 2017, 1, 489, doi:10.3390/proceedings1040489.
*
Author to whom correspondence should be addressed.
Received: 28 June 2018 / Revised: 30 July 2018 / Accepted: 3 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Potentiometric Chemical Sensors)
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Abstract

The potentiometric electronic tongue system has been tested as a potential analytical tool for brand uniformity control of monoculture Apulian red wines (Primitivo and Negroamaro). The sensor array was composed of eight porphyrin coatings obtained by electrochemical polymerization process and was employed for both wines discrimination and quantitative detection of wine defect compounds: “off-odour” 3-(methylthio)-propanol; isoamyl alcohol fusel oil; benzaldehyde (marker of the yeast activity) and acetic acid (marker of vinegar formation). PLS-DA applied to Electronic tongue output data has permitted a correct discrimination of more than 70% of analysed wines in respect to the original brand affiliation. Satisfactory PLS1 predictions were obtained in real wine samples; with R2 = 0.989 for isoamyl alcohol and R2 = 0.732 for acetic acid. Moreover; the possibility to distinguish wine samples on the base of permitted levels of fault compounds content was shown. View Full-Text
Keywords: potentiometric e-Tongue; wine brand uniformity control; defect compounds analysis potentiometric e-Tongue; wine brand uniformity control; defect compounds analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lvova, L.; Yaroshenko, I.; Kirsanov, D.; Di Natale, C.; Paolesse, R.; Legin, A. Electronic Tongue for Brand Uniformity Control: A Case Study of Apulian Red Wines Recognition and Defects Evaluation . Sensors 2018, 18, 2584.

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