Application of an E-Tongue to the Analysis of Monovarietal and Blends of White Wines

Manuel Gutiérrez, Andreu Llobera, Andrey Ipatov, Jordi Vila-Planas, Santiago Mínguez, Stefanie Demming, Stephanus Büttgenbach, Fina Capdevila, Carme Domingo, Cecilia Jiménez-Jorquera
<span title="2011-05-03">2011</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="" style="color: black;">Sensors</a> </i> &nbsp;
This work presents a multiparametric system capable of characterizing and classifying white wines according to the grape variety and geographical origin. Besides, it quantifies specific parameters of interest for quality control in wine. The system, known as a hybrid electronic tongue, consists of an array of electrochemical microsensors-six ISFET based sensors, a conductivity sensor, a redox potential sensor and two amperometric electrodes, a gold microelectrode and a microelectrode for
more &raquo; ... electrochemical oxygen demand-and a miniaturized optofluidic system. The test sample set comprised eighteen Catalan monovarietal white wines from four different grape varieties, two Croatian monovarietal white wines and seven bi-and trivarietal mixtures prepared from the Catalan varieties. Different chemometric tools were used to characterize (i.e., Principal Component Analysis), classify (i.e., Soft Independent Modeling Class Analogy) and quantify (i.e., Partial-Least Squares) some parameters of interest. The results demonstrate the usefulness of the multisensor system for analysis of wine.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.3390/s110504840</a> <a target="_blank" rel="external noopener" href="">pmid:22163879</a> <a target="_blank" rel="external noopener" href="">pmcid:PMC3231368</a> <a target="_blank" rel="external noopener" href="">fatcat:6ee2pvfei5babim4qn5un4kevu</a> </span>
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