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Low dose UV-C illumination as an eco-innovative disinfection system on minimally processed apples

2013Journal article Restricted access
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dc.contributor.authorGraça, Ana
dc.contributor.authorSalazar, Miguel
dc.contributor.authorQuintas, Célia
dc.contributor.authorNunes, C.
dc.date.accessioned2015-12-03T14:46:01Z
dc.date.available2015-12-03T14:46:01Z
dc.date.issued2013
dc.description.abstractIn this study, the efficacy of UV-C illumination for inactivate Escherichia coli, Listeria innocua or Salmonella enterica, individually or in a mixture, in vitro and on apple slices was determined. Apple slices inoculated with a 10(7) cfu/mL suspension of above indicated pathogens were irradiated on both sides with UV-C illumination, with doses of 0.5 and 1.0 kJ/m(2). UV-C illumination disinfection efficacy was compared to that of washings with sodium hypochlorite at 100 ppm of free chlorine and with distilled water. Bactericidal activity of each treatment was assessed after 30 min and after 7 and 15 days of storage at 4 degrees C. Results showed that UV-C illumination at 1.0 kJ/m(2) could be an alternative to the wash with hypochlorite solutions. On the in vitro study, these doses completely inhibited the growth of the three bacteria either as pure cultures or in a mixture. In fresh-cut apple, the pathogens were also affected by the UV-C illumination, the 1.0 kJ/m(2) dosage being the one that resulted in higher bacteria inhibition in almost every case. The UV-C treatment did not affect the quality properties of fresh-cut apple. 2013 Elsevier B.V. All rights reserved.
dc.identifier.doihttps://dx.doi.org/10.1016/j.postharvbio.2013.04.013
dc.identifier.issn0925-5214
dc.identifier.otherAUT: CQU00490;
dc.identifier.urihttp://hdl.handle.net/10400.1/7297
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.isbasedonP-006-6FN
dc.titleLow dose UV-C illumination as an eco-innovative disinfection system on minimally processed apples
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage7
oaire.citation.startPage1
oaire.citation.titlePostharvest Biology and Technology
oaire.citation.volume85
person.familyNameGraça
person.familyNameSalazar
person.familyNameQuintas
person.familyNameNunes
person.givenNameAna
person.givenNameMiguel
person.givenNameCélia
person.givenNameCristina
person.identifierG-5572-2015
person.identifier.ciencia-id291E-1F1D-36D7
person.identifier.ciencia-idEA14-D76B-FF6E
person.identifier.ciencia-idD711-CB24-6539
person.identifier.orcid0000-0001-9976-5975
person.identifier.orcid0000-0001-6345-5924
person.identifier.orcid0000-0001-9680-5089
person.identifier.orcid0000-0002-1009-0519
person.identifier.ridD-3608-2015
person.identifier.scopus-author-id37664874700
person.identifier.scopus-author-id36782949300
person.identifier.scopus-author-id7006695278
rcaap.rightsrestrictedAccess
rcaap.typearticle
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