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

Artículo de investigación publicado en Food Analytical Methods

1 de junio de 2016

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 μm. 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




Rivas EM., Maldonado-Gil M., Diezma B., Wrent P., Peinado JM., de Siloniz MI., Vergara G., Garcia-Hierrro J., Robla JI. y Barreiro P.




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




Participantes:

CEI Campus MoncloaCEI Campus Moncloa.

Universidad ComplutenseDepartamento de Microbiología. Facultad de Ciencias Biológicas. Universidad Complutense (UCM).

Universidad Politécnica de MadridEscuela Universitaria de Ingeniería Técnica Agrícola (EUITA). Universidad Politécnica de Madrid (UPM).

Universidad ComplutenseServicio de Identificación y Caracterización Microbiana (ICM). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

New Infrared TechnologiesNew Infrared Technologies (NIT).

Consejo Superior de Investigaciones CientíficasCentro Nacional de Investigaciones Metalúrgicas (CENIM). Consejo Superior de Investigaciones Científicas (CSIC).







Food Analytical Methods
FACTOR YEAR Q
2.038 2016

ISSN: 1936-9751



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


REVISTA: Food Anal. Meth


NUMERACIÓN: 9:1451–1460


AÑO: 2016


EDITORIAL: Springer


AUTORES: Rivas EM., Maldonado-Gil M., Diezma B., Wrent P., Peinado JM., de Siloniz MI., Vergara G., Garcia-Hierrro J., Robla JI. and Barreiro P.


DOI: https://doi.org/10.1007/s12161-015-0320-6


CITA ESTA PUBLICACIÓN:

Rivas EM., Maldonado-Gil M., Diezma B., Wrent P., Peinado JM., de Siloniz MI., Vergara G., Garcia-Hierrro J., Robla JI. y Barreiro P. Detection of Biological CO2 and 1,3-Pentadiene Using Non-refrigerated Low-Cost MWIR Detectors. Food Analytical Methods. 9:1451–1460. 2016. (A). ISSN: 1936-9751. DOI: 10.1007/s12161-015-0320-6


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