Diffuse-light absorption spectroscopy for discriminating Belgian beers

A. G. Mignani; L. Ciaccheri; A. A. Mencaglia; E. E. Samano-Baca; H. Ottevaere; H. Thienpont

doi:10.1117/12.968725

7 November 2012 Diffuse-light absorption spectroscopy for discriminating Belgian beers

A. G. Mignani, L. Ciaccheri, A. A. Mencaglia, E. E. Samano-Baca, H. Ottevaere, H. Thienpont

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AS (2012) https://doi.org/10.1117/12.968725
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

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.

Citation Download Citation

A. G. Mignani, L. Ciaccheri, A. A. Mencaglia, E. E. Samano-Baca, H. Ottevaere, and H. Thienpont "Diffuse-light absorption spectroscopy for discriminating Belgian beers", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AS (7 November 2012); https://doi.org/10.1117/12.968725

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