Memorias de investigación
Artículos en revistas:
Detection of Biological CO2 and 1,3-Pentadiene Using Non-refrigerated Low-Cost MWIR Detectors
Año:2015
Áreas de investigación
  • Dispositivos sensores
Datos
Descripción
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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Food Analytical Methods
ISSN
1936-9751
Factor de impacto JCR
1,802
Información de impacto
Datos JCR del año 2013
Volumen
DOI
10.1007/s12161-015-0320-6
Número de revista
Desde la página
1
Hasta la página
10
Mes
SEPTIEMBRE
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Participantes
  • Autor: Eva Maria Rivas Departamento de Microbiologia III, Facultad de Biología, Universidad Complutense de Madrid
  • Autor: Maria Maldonado VISAVET, Facultad de Veterinaria, Universidad Complutense de Madrid
  • Autor: Belen Diezma Iglesias UPM
  • Autor: P. Wrent Departamento de Microbiologia III, Facultad de Biología, Universidad Complutense de Madrid
  • Autor: J.M. Peinado Departamento de Microbiologia III, Facultad de Biología, Universidad Complutense de Madrid
  • Autor: Maria Isabel de Silóniz Departamento de Microbiologia III, Facultad de Biología, Universidad Complutense de Madrid
  • Autor: Germán Vergara New Infrared Technologies, S.L.
  • Autor: Javier Garcia-Hierro Navas UPM
  • Autor: José Ignacio Robla Villalba UPM
  • Autor: Pilar Barreiro Elorza UPM
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