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9 July 2007 Eat-by-light fiber-optic and micro-optic devices for food quality and safety assessment
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A selection is presented of fiber-optic and micro-optic devices that have been designed and tested for guaranteeing the quality and safety of typical foods, such as extra virgin olive oil, beer, and milk. Scattered colorimetry is used to authenticate various types of extra virgin olive oil and beer, while a fiber-optic-based device for UV-VIS-NIR absorption spectroscopy is exploited in order to obtain the hyperspectral optical signature of olive oil. This is done not only for authentication purposes, but also so as to correlate the spectral data with the content of fatty acids, which are important nutritional factors. A micro-optic sensor for the detection of olive oil aroma that is capable of distinguishing different ageing levels of extra virgin olive oil is also presented. It shows effective potential for acting as a smart cap of bottled olive oil in order to achieve a non-destructive olfactory perception of oil ageing. Lastly, a compact portable fluorometer for the rapid monitoring of the carcinogenic M1 aflatoxin in milk, is experimented.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. G. Mignani, L. Ciaccheri, C. Cucci, A. A. Mencaglia, A. Cimato, C. Attilio, H. Thienpont, H. Ottevaere, R. Paolesse, M. Mastroianni, D. Monti, G. Buonocore, A. Del Nobile, A. Mentana, M. F. Grimaldi, C. Dall'Asta, A. Faccini, G. Galaverna, and A. Dossena "Eat-by-light fiber-optic and micro-optic devices for food quality and safety assessment", Proc. SPIE 6733, International Conference on Lasers, Applications, and Technologies 2007: Environmental Monitoring and Ecological Applications; Optical Sensors in Biological, Chemical, and Engineering Technologies; and Femtosecond Laser Pulse Filamentation, 67331K (9 July 2007);

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