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Vol. 187, Issue 4, April 2015, pp. 23-28




An Electronic Nose System Sensitive to the Aroma of Ascomycete Tuber


1,2 Department of Informatics and Communications, Technological Educational Institute of Central Macedonia, Terma Magnisias Str., 62124 Serres, Greece

2 E-mail: ikalom@teicm.gr


Received: 22 January 2015 /Accepted: 27 March 2015 /Published: 30 April 2015

Digital Sensors and Sensor Sysstems


Abstract: An “electronic nose” based on a low-cost Metal-Oxide sensor-array is developed and tested for the detection of Volatile Organic Compounds (VOCs) of samples of ascomycete Tuber or truffle. Truffles have highly appreciated gastronomical and nutritive merits and they own a variable characteristic aroma depending on their stage of maturation and species. The response of the gas sensors to a variety of truffle samples is monitored. Principal Component Analysis is applied to the extracted feature vectors. The results show that an intelligent odor-discriminating system based on a gas sensor array is possible and can contribute to the identification and classification of truffles.


Keywords: Electronic nose, Olfactory systems, Gas sensors, Data acquisition, Truffle.


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