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Proceedings Paper

Toward a hyperspectral optical signature of extra virgin olive oil
Author(s): A. G. Mignani; L. Ciaccheri; H. Thienpont; H. Ottevaere; C. Attilio; A. Cimato
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Paper Abstract

Italian extra virgin olive oils bearing labels of certified area of origin were considered. Their multispectral digital signature was measured by means of absorption spectroscopy in the 200-1700 nm spectral range. The instrumentation was a fiber optic-based, cheap, and compact device. The spectral data were processed by means of multivariate analysis and plotted on a 2D classification map. The map showed sharp clusters according to the geographical origin of the oils, thus demonstrating the potentials of UV-VIS-NIR spectroscopy for optical fingerprinting. Then, the spectral data were correlated to the content of the most important fatty acids. The good fitting achieved demonstrated that the optical fingerprinting can be used also for predicting nutritional and chemical parameters.

Paper Details

Date Published: 31 May 2007
PDF: 6 pages
Proc. SPIE 6585, Optical Sensing Technology and Applications, 65852C (31 May 2007); doi: 10.1117/12.724332
Show Author Affiliations
A. G. Mignani, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
L. Ciaccheri, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
H. Thienpont, Vrije Univ. Brussel (Belgium)
H. Ottevaere, Vrije Univ. Brussel (Belgium)
C. Attilio, IVALSA, CNR (Italy)
A. Cimato, IVALSA, CNR (Italy)

Published in SPIE Proceedings Vol. 6585:
Optical Sensing Technology and Applications
Francesco Baldini; Jiri Homola; Robert A. Lieberman; Miroslav Miler, Editor(s)

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