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Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination

2,4,6-trichloroanisole (TCA) is mainly responsible for cork taint in wine, which causes significant economic losses; therefore, the wine and cork industries demand an immediate, economic, noninvasive and on-the-spot solution. In this work, we present a novel prototype of an electronic nose (e-nose)...

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Autores principales: Meléndez, Félix, Arroyo, Patricia, Gómez-Suárez, Jaime, Palomeque-Mangut, Sergio, Suárez, José Ignacio, Lozano, Jesús
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102965/
https://www.ncbi.nlm.nih.gov/pubmed/35591143
http://dx.doi.org/10.3390/s22093453
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author Meléndez, Félix
Arroyo, Patricia
Gómez-Suárez, Jaime
Palomeque-Mangut, Sergio
Suárez, José Ignacio
Lozano, Jesús
author_facet Meléndez, Félix
Arroyo, Patricia
Gómez-Suárez, Jaime
Palomeque-Mangut, Sergio
Suárez, José Ignacio
Lozano, Jesús
author_sort Meléndez, Félix
collection PubMed
description 2,4,6-trichloroanisole (TCA) is mainly responsible for cork taint in wine, which causes significant economic losses; therefore, the wine and cork industries demand an immediate, economic, noninvasive and on-the-spot solution. In this work, we present a novel prototype of an electronic nose (e-nose) using an array of digital and analog metal-oxide gas sensors with a total of 31 signals, capable of detecting TCA, and classifying cork samples with low TCA concentrations (≤15.1 ng/L). The results show that the device responds to low concentrations of TCA in laboratory conditions. It also differentiates among the inner and outer layers of cork bark (81.5% success) and distinguishes among six different samples of granulated cork (83.3% success). Finally, the device can predict the concentration of a new sample within a ±10% error margin.
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spelling pubmed-91029652022-05-14 Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination Meléndez, Félix Arroyo, Patricia Gómez-Suárez, Jaime Palomeque-Mangut, Sergio Suárez, José Ignacio Lozano, Jesús Sensors (Basel) Article 2,4,6-trichloroanisole (TCA) is mainly responsible for cork taint in wine, which causes significant economic losses; therefore, the wine and cork industries demand an immediate, economic, noninvasive and on-the-spot solution. In this work, we present a novel prototype of an electronic nose (e-nose) using an array of digital and analog metal-oxide gas sensors with a total of 31 signals, capable of detecting TCA, and classifying cork samples with low TCA concentrations (≤15.1 ng/L). The results show that the device responds to low concentrations of TCA in laboratory conditions. It also differentiates among the inner and outer layers of cork bark (81.5% success) and distinguishes among six different samples of granulated cork (83.3% success). Finally, the device can predict the concentration of a new sample within a ±10% error margin. MDPI 2022-04-30 /pmc/articles/PMC9102965/ /pubmed/35591143 http://dx.doi.org/10.3390/s22093453 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Meléndez, Félix
Arroyo, Patricia
Gómez-Suárez, Jaime
Palomeque-Mangut, Sergio
Suárez, José Ignacio
Lozano, Jesús
Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title_full Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title_fullStr Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title_full_unstemmed Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title_short Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination
title_sort portable electronic nose based on digital and analog chemical sensors for 2,4,6-trichloroanisole discrimination
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102965/
https://www.ncbi.nlm.nih.gov/pubmed/35591143
http://dx.doi.org/10.3390/s22093453
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