{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T01:33:48Z","timestamp":1771983228256,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,4,30]],"date-time":"2022-04-30T00:00:00Z","timestamp":1651276800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Junta de Extremadura","award":["IB18049"],"award-info":[{"award-number":["IB18049"]}]},{"name":"Junta de Extremadura","award":["PID2019-107697RB-C44"],"award-info":[{"award-number":["PID2019-107697RB-C44"]}]},{"DOI":"10.13039\/501100004837","name":"Spanish Ministry of Science and Innovation","doi-asserted-by":"publisher","award":["IB18049"],"award-info":[{"award-number":["IB18049"]}],"id":[{"id":"10.13039\/501100004837","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004837","name":"Spanish Ministry of Science and Innovation","doi-asserted-by":"publisher","award":["PID2019-107697RB-C44"],"award-info":[{"award-number":["PID2019-107697RB-C44"]}],"id":[{"id":"10.13039\/501100004837","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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 (\u226415.1 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 \u00b110% error margin.<\/jats:p>","DOI":"10.3390\/s22093453","type":"journal-article","created":{"date-parts":[[2022,5,3]],"date-time":"2022-05-03T08:26:35Z","timestamp":1651566395000},"page":"3453","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Portable Electronic Nose Based on Digital and Analog Chemical Sensors for 2,4,6-Trichloroanisole Discrimination"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8534-7788","authenticated-orcid":false,"given":"F\u00e9lix","family":"Mel\u00e9ndez","sequence":"first","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5918-1788","authenticated-orcid":false,"given":"Patricia","family":"Arroyo","sequence":"additional","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8386-0927","authenticated-orcid":false,"given":"Jaime","family":"G\u00f3mez-Su\u00e1rez","sequence":"additional","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]},{"given":"Sergio","family":"Palomeque-Mangut","sequence":"additional","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7961-0244","authenticated-orcid":false,"given":"Jos\u00e9 Ignacio","family":"Su\u00e1rez","sequence":"additional","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0905-9546","authenticated-orcid":false,"given":"Jes\u00fas","family":"Lozano","sequence":"additional","affiliation":[{"name":"Industrial Engineering School, University of Extremadura, 06006 Badajoz, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Keller, P.E. 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