Observatorio de I+D+i UPM

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
Ranking

Esta actividad pertenece a memorias de investigación

• 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)

• Creador: Grupo de Investigación: LPF-TAGRALIA: Técnicas Avanzadas en Agroalimentación
• Departamento: Ingeniería Agroforestal