“…Indeed, electronic noses (E-noses) and electronic tongues (E-tongues), individually or combined, have been proposed in the last decade for olive oil characterisation (Ruiz-Samblás et al, 2012) using different multivariate statistical techniques. E-noses have been successfully used to classify and discriminate EVOO, VOO and LOO (Escuderos, Sánchez, & Jiménez, 2010;Escuderos, Sánchez, & Jiménez, 2011;García-González, & Aparicio, 2004); to classify VOO according to their geographical origin (Haddi et al, 2011), and to differentiate single-cultivar or multi-cultivar EVOO according to Protected Designation of Origin (Cimato et al, 2006). Voltammetric E-tongues have been applied with success to separate EVOO, VOO, LOO and refined olive oils (Apetrei, & Apetrei, 2013;Apetrei, Rodríguez-Méndez, & de Saja, 2005;Oliveri, Baldo, Daniele, & Forina, 2009) and to distinguish EVOO from maize oils, different EVOO from the same geographical region or EVOO from different countries (Oliveri et al, 2009).…”