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


AU: 
Gutierrez, M; Llobera, A; Ipatov, A; Vila-Planas, J; Minguez, S; Demming, S; Buttgenbach, S; Capdevila, F; Domingo, C; Jimenez-Jorquera, C
SO: 
SENSORS
VL: 
11
IS: 
5
BP: 
4840
EP: 
4857
PY: 
2011
SN: 
1424-8220
IF: 
1.77
Year IF: 
2010
Abstract: 

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 sensing 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.

DT: 
Article en revistes indexades
Percentil: 
HIGH
Percentil Year: 
2010
Category: 
INSTRUMENTS & INSTRUMENTATION
KW: 
hybrid electronic tongue; electrochemical microsensors; photonic lab on a chip; wine analysis; multivariate chemometric tools