Detection of Biological CO2 and 1,3-Pentadiene Using Non-refrigerated Low-Cost MWIR Detectors

Rivas, Eva María and Maldonado, María and Diezma Iglesias, Belen and Wrent, P. and Peinado, J. and Silóniz Jiménez, María Isabel and Vergara, Germán and García Hierro, Javier and Robla Villalba, José Ignacio and Barreiro Elorza, Pilar (2016). Detection of Biological CO2 and 1,3-Pentadiene Using Non-refrigerated Low-Cost MWIR Detectors. "Food Analytical Methods", v. 9 (n. 6); pp. 1-10. ISSN 1936-9751. https://doi.org/10.1007/s12161-015-0320-6.

Description

Title: Detection of Biological CO2 and 1,3-Pentadiene Using Non-refrigerated Low-Cost MWIR Detectors
Author/s:
  • Rivas, Eva María
  • Maldonado, María
  • Diezma Iglesias, Belen
  • Wrent, P.
  • Peinado, J.
  • Silóniz Jiménez, María Isabel
  • Vergara, Germán
  • García Hierro, Javier
  • Robla Villalba, José Ignacio
  • Barreiro Elorza, Pilar
Item Type: Article
Título de Revista/Publicación: Food Analytical Methods
Date: June 2016
Volume: 9
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Ingeniería Agroforestal
UPM's Research Group: Técnicas Avanzadas en Agroalimentación LPF-TAGRALIA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The early detection of spoiling metabolic products in contaminated food is a very important tool to control quality. Some volatile compounds produce unpleasant odours at very low concentrations, making their early detection very challenging. This is the case of 1,3-pentadiene produced by microorganisms through decarboxylation of the preservative sorbate. In this work, we have developed a methodology to use the data produced by a low-cost, compact MWIR (Mid-Wave IR) spectrometry device without moving parts, which is based on a linear array of 128 elements of VPD PbSe coupled to a linear variable filter (LVF) working in the spectral range between 3 and 4.6 ?m. This device is able to analyze food headspace gases through dedicated sample presentation setup. This methodology enables the detection of CO2 and the volatile compound 1,3-pentadiene, as compared to synthetic patrons. Data analysis is based on an automated multidimensional dynamic processing of the MWIR spectra. Principal component and discriminant analysis allow segregating between four yeast strains including producers and no producers. The segregation power is accounted as a measure of the discrimination quality.

More information

Item ID: 40828
DC Identifier: http://oa.upm.es/40828/
OAI Identifier: oai:oa.upm.es:40828
DOI: 10.1007/s12161-015-0320-6
Official URL: http://link.springer.com/article/10.1007/s12161-015-0320-6
Deposited by: Memoria Investigacion
Deposited on: 14 Jun 2016 17:11
Last Modified: 30 Jun 2017 22:30
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