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Proceedings Paper

Diffuse-light absorption spectroscopy for discriminating Belgian beers
Author(s): A. G. Mignani; L. Ciaccheri; A. A. Mencaglia; E. E. Samano-Baca; H. Ottevaere; H. Thienpont
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Paper Abstract

This paper presents an optical method for authenticating Belgian beers. A set of 86 beers is considered, 50 of which were produced in Belgium, while the others worldwide. A fiber optic setup for diffuse-light absorption spectroscopy was used to achieve a turbidity-free spectroscopic information in the visible and near-infrared bands. In addition, turbidity and refractive index measurements, measured by means of conventional hand-held instrumentation, were added for completing the optical characterization. The entire optical data set was processed by means of multivariate analysis to achieve the discrimination of Belgian beers with respect to all the others.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AS (7 November 2012); doi: 10.1117/12.968725
Show Author Affiliations
A. G. Mignani, CNR - Istituto di Fisica Applicata (Italy)
L. Ciaccheri, CNR - Istituto di Fisica Applicata (Italy)
A. A. Mencaglia, CNR - Istituto di Fisica Applicata (Italy)
E. E. Samano-Baca, Vrije Univ. Brussel (Belgium)
H. Ottevaere, Vrije Univ. Brussel (Belgium)
H. Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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