P2.1.2 Performance Study of a Potentiometric Sensor Array for Lactic Proteins Analysis

Luís G. Dias, Ana C. A. Veloso, Adélio A. S. C. Machado & António M. Peres
Lactic proteins are complex biomolecules, possessing different molecular weights (from 19 kDa up to 66 kDa), which can be used as biomarkers for detecting food adulterations. This study reports for the first time the evaluation of two potentiometric sensor arrays, one electronic tongue (ET) using only cross-sensitivity chemical sensors and a hybrid-ET containing ionic-selective and cross-sensitivity chemical sensors. Although both devices could detect and distinguish soluble and insoluble lactic proteins, namely bovine serum albumin and...