Consulta: subjectFacets:"Pulsed light"
Registros recuperados: 2
Data/hora: 08/06/2024 11:32:43

Pulsed-light system as a novel food decontamination technology: a review
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Elmnasser, Noura; Guillou, Sandrine; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amina; Federighi, Michel.
In response to consumer preferences for high quality foods that are as close as possible to fresh products, athermal technologies are being developed to obtain products with high levels of organoleptic and nutritional quality but free of any health risks. Pulsed light is a novel technology that rapidly inactivates pathogenic and food spoilage microorganisms. It appears to constitute a good alternative or a complement to conventional thermal or chemical decontamination processes. This food preservation method involves the use of intense, short-duration pulses of broad-spectrum light. The germicidal effect appears to be due to both photochemical and photothermal effects. Several high intensity flashes of broad spectrum light pulsed per second can inactivate...
Tipo: Text
Palavras-chave: Review; Foods; Microorganism; Decontamination technology; Pulsed light.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-7372.pdf

Bacterial inactivation using pulsed light
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Elmnasser, Noura; Ritz, Magali; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amina; Federighi, Michel.
Pulsed light is a new method intended for the decontamination of food surfaces using short, high frequency pulses of an intense broad spectrum. The effects of broad spectrum pulsed light on the survival of Listeria monocytogenes Scott A, Listeria monocytogenes CNL, Pseudomonas fluorescens MF37 and Photobacterium phosphoreum SF680 populations on agar and in a liquid medium were investigated during this study. The sterilisation system generated 1.5 J cm(-2) per pulse with eight lamps for 300 mu s. In the case of surface-seeded cells, a 7.8, 8.14 and &gt; 7.14 log reduction was obtained for L. monocytogenes, Ps. fluorescens MF37 and Ph. phosphoreum, respectively, after a single pulse of treatment. Inactivation levels were lower for depth-plated cells: indeed,...
Tipo: Text
Palavras-chave: Efficiency; Inactivation; Bacteria; Treatment; Pulsed light.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3041.pdf