Repository logo
 
Publication

UV-C radiation as an effective non-thermal process for ‘Cantaloupe’ melon juice decontamination

2017-09Conference object Open access
Simple item page
dc.contributor.authorMandro, Gabriela
dc.contributor.authorFundo, Joana F.
dc.contributor.authorMiller, Fátima A.
dc.contributor.authorTremarin, Andréia
dc.contributor.authorBrandão, Teresa R. S.
dc.contributor.authorSilva, Cristina L. M.
dc.date.accessioned2021-06-23T20:03:53Z
dc.date.available2021-06-23T20:03:53Z
dc.date.issued2017-09
dc.description.abstractThermal pasteurization has negative impacts on overall quality characteristics of foods. UV-C radiation has a germicidal effect and has been applied to eliminate undesirable microorganisms in food products. This technology is more effective in liquid foods, being an alternative non-thermal processing that can be applied to fruit juices.The objective of this study was to evaluate the effect of UV-C radiation on some quality characteristics and microbiological decontamination of cantaloupe melon (Cucumis meloL. var. reticulatus) juice, whichis an excellent source of antioxidant compounds, such as vitamins, phenolics and carotenoids. Cantaloupe melon juice was artificially inoculated with Alicyclobacillus acidoterrestrisspores (spoiler indicator) and Listeria innocua(non-pathogenic surrogate of L.monocytogenes), used as indicators of the UV-C treatment efficacy. The initial concentration of both microorganisms was around 107CFU/mL. Juice was exposed to UV-C radiation at an intensity of 13.44 W/m2, during 5 and 20 minutes. Some physic-chemical characteristics (pH, colour and soluble solids content), total phenolics and antioxidant capacity were evaluated before and after treatments. Exposure time affected significantly colour (very distinct alterations) and pH (slight increase from 6.3±0.1 in fresh, to 6.7±0.1 and 7.0±0.1 after 5 and 20 min of radiation; values are mean±margin of confidence interval at 95%). The remaining characteristics were not affected by the radiation and were similar to the ones observed in fresh/untreated juice. In terms of A. Acidoterrestris spores, reductions of 0.8±0.1 and 4.7±0.1log-cycles were observed after 5 and 20 minutes of radiation, respectively. For L. innocua, a reduction of 3.9±0.7 log-cycles was attained after 5 minutes and, for the highest exposure time, no cells were detected. Since UV-C was effective on microbial inactivation and was able to retain the most of quality parameters analysed, this technology can be considered as a promising alternative to traditional pasteurization of fruit juices.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.14/33904
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.titleUV-C radiation as an effective non-thermal process for ‘Cantaloupe’ melon juice decontaminationpt_PT
dc.typeconference object
dspace.entity.typePublication
person.familyNameFundo
person.familyNameMiller
person.familyNameBrandão
person.familyNameSilva
person.givenNameJoana F.
person.givenNameFatima
person.givenNameTeresa
person.givenNameCristina
person.identifier1274614
person.identifierG-5364-2013
person.identifierJ-9418-2012
person.identifier1473674
person.identifier.ciencia-idA11A-7819-9522
person.identifier.ciencia-id3A17-0386-6C1B
person.identifier.ciencia-id7B19-E23B-BB31
person.identifier.ciencia-id6611-634A-132C
person.identifier.orcid0000-0002-9208-7443
person.identifier.orcid0000-0002-3715-6231
person.identifier.orcid0000-0002-8857-6471
person.identifier.orcid0000-0002-0495-3955
person.identifier.ridE-9585-2015
person.identifier.ridG-5364-2013
person.identifier.ridJ-9418-2012
person.identifier.ridA-3568-2013
person.identifier.scopus-author-id24068634500
person.identifier.scopus-author-id15056315100
person.identifier.scopus-author-id6602174128
person.identifier.scopus-author-id7201387397
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication2f44a8e2-ade9-437d-aae3-3e894c7dc065
relation.isAuthorOfPublicationc6abba4e-b0bc-44f8-a58e-e7e71e8ed9b0
relation.isAuthorOfPublicationebf7ead0-3772-4fd6-988c-f6b8722de84e
relation.isAuthorOfPublication4e2903de-0679-4cb1-981e-10de14c0c995
relation.isAuthorOfPublication.latestForDiscovery2f44a8e2-ade9-437d-aae3-3e894c7dc065

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Mandro_et_al_2017_abstract_EFFO2017_0179.pdf
Size:
87.69 KB
Format:
Adobe Portable Document Format
Download

Collections

CBQF - Documentos de Conferências / Conference Objects