Electronic Tongue systems have been widely used during last decades, reaching an high level of
performances in the detection and quantification of several matrices, such as for example waters, soft
and alcoholic drinks. Next step in research is represented by the miniaturization of these systems: it
is made possible by the integration of the knowledge on materials suitable for sensorial purpose and
the silicon technology, which allows the development of micro-dimensioned sensors. In this work
we report the development of a sensor array composed of 8 electro-polymerized porphyrin based
membranes, with an active area exposed to liquid of 0.5 mm2. The miniaturized system, integrated
on a single silicon wafer and completed by read-out electronics, was firstly tested towards standard
analytes and then applied on real white wine samples for the detection of some analytes mimicking
wine defects, namely H2S, SO2 and CH3CO2H.
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