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Metal Oxide Gas Sensors: Sensitivity and Influencing Factors
Sensors 2010, 10(4), 3882-3910; doi:10.3390/s100403882
Review

Metal Oxide Sensors for Electronic Noses and Their Application to Food Analysis

CSIRO Entomology and CSIRO Food Futures Flagship, GPO Box 1700, Canberra ACT 2601, Australia
Received: 11 March 2010 / Revised: 12 April 2010 / Accepted: 13 April 2010 / Published: 15 April 2010
(This article belongs to the Special Issue Metal-Oxide Based Nanosensors)
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Abstract

Electronic noses (E-noses) use various types of electronic gas sensors that have partial specificity. This review focuses on commercial and experimental E-noses that use metal oxide semi-conductors. The review covers quality control applications to food and beverages, including determination of freshness and identification of contaminants or adulteration. Applications of E-noses to a wide range of foods and beverages are considered, including: meat, fish, grains, alcoholic drinks, non-alcoholic drinks, fruits, milk and dairy products, olive oils, nuts, fresh vegetables and eggs.
Keywords: food; metal oxide semi-conductor sensor; electronic nose; E-nose food; metal oxide semi-conductor sensor; electronic nose; E-nose
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Berna, A. Metal Oxide Sensors for Electronic Noses and Their Application to Food Analysis. Sensors 2010, 10, 3882-3910.

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