Electronic Nose For Food And Other Applications

M. Pardo, G. Niederjaufner, E. Comini, G. Faglia, G. Sberveglieri

INFM, Gas Sensor Lab - Dept. of Chemistry and Physics for Engineering and for Materials, University of Brescia, Via Valotti 9 - 25133 Brescia -Italy

The problem of resolving similar food odors (similar cheeses and milks subjected to different heat treatments) with an electronic nose (EN) is addressed. The EN is constituted by an array thin films sensors, a static or dynamic headspace sampler and data analysis software (PCA and ANN in cascade). Further future applications, as for instance environmental monitoring, are also described.

Keywords: Electronic nose, Food analysis, Thin films, Sampling techniques, Neural networks