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Degradation kinetics of colour, vitamin C and drip loss in frozen broccoli (Brassica oleracea L. ssp. Italica) during storage at isothermal and non-isothermal conditions

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dc.contributor.authorGonçalves, Elsa M.
dc.contributor.authorAbreu, Marta
dc.contributor.authorBrandão, Teresa R. S.
dc.contributor.authorSilva, Cristina L.M.
dc.date.accessioned2012-01-16T19:22:17Z
dc.date.available2012-01-16T19:22:17Z
dc.date.issued2011
dc.description.abstractStudies were undertaken on colour CIE L*a*b* values, vitamin C (ascorbic acid) and drip loss alterations of frozen broccoli (Brassica oleracea L. ssp. Italica) stored at isothermal ( 7, 15, and 25 C) and non-isothermal (accelerated life testing with step-stress methodology; temperature range from 30 to 5 C) conditions. The storage temperatures were selected according to conditions that occur in the cold chain. Frozen storage at all regimes had significant impact on all quality parameters analysed. Significant alterations in broccoli green colour, vitamin C content and drip loss were observed. Experimental data of h* colour degradation and drip loss (%) at isothermal conditions and a =a0 at non-isothermal conditions could be modelled by zero order kinetics. A first order kinetic model was adequate for the remaining quality factors and temperature regimes. The effect of storage temperature on kinetic parameters was successfully described by the Arrhenius equation.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationGONÇALVES, Elsa M... [et al.] - Degradation kinetics of colour, vitamin C and drip loss in frozen broccoli (Brassica oleracea L. ssp. Italica) during storage at isothermal and non-isothermal conditions.International Journal of Refrigeration. ISSN 0140-7007. Vol. 34, n.º 8 (2011), p. 2136–2144por
dc.identifier.doi10.1016/j.ijrefrig.2011.06.006
dc.identifier.eissn1879-2081
dc.identifier.issn0140-7007
dc.identifier.urihttp://hdl.handle.net/10400.14/7485
dc.identifier.wosWOS:000297826500042
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectBroccolipor
dc.subjectFreezingpor
dc.subjectStoragepor
dc.subjectQualitypor
dc.subjectStorage lifepor
dc.subjectModellingpor
dc.subjectBrocoli
dc.subjectSurgélation
dc.subjectEntreposage
dc.subjectQualité
dc.subjectDurée de conservation
dc.subjectModélisation
dc.titleDegradation kinetics of colour, vitamin C and drip loss in frozen broccoli (Brassica oleracea L. ssp. Italica) during storage at isothermal and non-isothermal conditionspor
dc.title.alternativeCinétique de détérioration de la couleur, de la teneur en vitamine C et exsudats du brocoli (Brassica oleracea L. ssp. Italica) pendant l’entreposage sous des conditions isothermes et non isothermespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2144
oaire.citation.issue8
oaire.citation.startPage2136
oaire.citation.titleInternational Journal of Refrigeration
oaire.citation.volume34
person.familyNameGonçalves
person.familyNameAbreu
person.familyNameBrandão
person.familyNameSilva
person.givenNameElsa Margarida
person.givenNameMarta
person.givenNameTeresa
person.givenNameCristina
person.identifierJ-9418-2012
person.identifier1473674
person.identifier.ciencia-idAA12-42D6-6D59
person.identifier.ciencia-idA31F-D2A3-36A8
person.identifier.ciencia-id7B19-E23B-BB31
person.identifier.ciencia-id6611-634A-132C
person.identifier.orcid0000-0002-5814-0490
person.identifier.orcid0000-0002-0245-7122
person.identifier.orcid0000-0002-8857-6471
person.identifier.orcid0000-0002-0495-3955
person.identifier.ridN-4198-2013
person.identifier.ridJ-9418-2012
person.identifier.ridA-3568-2013
person.identifier.scopus-author-id7004990784
person.identifier.scopus-author-id7102768632
person.identifier.scopus-author-id6602174128
person.identifier.scopus-author-id7201387397
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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