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Decontamination of packaging by alabased photosensitization

dc.contributor.authorLuksiene, Zivile
dc.contributor.authorPaskeviciute, Egle
dc.contributor.editorNunes, Carla
dc.date.accessioned2013-09-27T12:30:43Z
dc.date.available2013-09-27T12:30:43Z
dc.date.issued2010
dc.descriptionProceedings of the International Conference “Environmentally friendly and safe technologies for quality of fruit and vegetables”, held in Universidade do Algarve, Faro, Portugal, on January 14-16, 2009. This Conference was a join activity with COST Action 924.por
dc.description.abstractThis study deals with the development of a novel approach to decontaminate packaging from food pathogens by photosensitization. For this purpose, packaging samples with adhered pathogen were submerged in aminolevulinic acid (ALA solution (3-7.5 mM) for 10 min. Samples were then illuminated with 20 mW cm-2 ( =400 nm) for 5-20 min up to the total exposure of 24 J cm-2. Gram-positive Bacillus cereus and Gramnegative Salmonella enterica were inactivated, with population reductions of 4.2 and 2.5 log, respectively. Inactivation of Gram-positive Listeria monocytogenes biofilms ranged from 1.7-3.1 log. Moreover, our data indicated that the B. cereus spores were susceptible to this treatment, with as much as a 3.1 log reduction in spore population observed after ALA-based photosensitization in vitro and 2.7 log on the surface of packaging material.por
dc.identifier.urihttp://hdl.handle.net/10400.1/2923
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherUniversidade do Algarvepor
dc.titleDecontamination of packaging by alabased photosensitizationpor
dc.typebook part
dspace.entity.typePublication
oaire.citation.conferencePlaceFaropor
oaire.citation.endPage232por
oaire.citation.startPage230por
oaire.citation.titleEnvironmentally friendly and safe technologies for quality of fruit and vegetablespor
rcaap.rightsopenAccesspor
rcaap.typebookPartpor

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