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Effect of air-drying temperature on the quality and bioactive characteristics of dried galega kale (brassica oleracea l. var. acephala)

2015Journal article Restricted access
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dc.contributor.authorOliveira, Sara M.
dc.contributor.authorRamos, Inês N.
dc.contributor.authorBrandão, Teresa R. S.
dc.contributor.authorSilva, Cristina L.M.
dc.date.accessioned2016-01-07T12:31:19Z
dc.date.available2016-01-07T12:31:19Z
dc.date.issued2015
dc.description.abstractThe objective of this work was to evaluate the drying characteristics and the effect of drying temperature on the quality characteristics of Galega kale without any pretreatment. Drying times of 330, 162, 78 and 51 min provided minimal moisture contents, using temperatures of 35, 50, 70 and 85C, respectively. The L* and a* values diminished and b* increased, resulting in increasing values of chroma, total color difference and browning index, as well as decreasing values of the hue angle. A pronounced effect on the retention of total phenolic compounds and vitamin C losses ranging from 4.8 ± 9.7 to 55.5 ± 7.4% were observed. Regarding antioxidant capacity, losses from 51.7 ± 7.5 to 69.6 ± 3.7% were obtained. Chlorophyll a content decreased with increasing drying temperatures, with losses between 8.9 ± 6.7 and 35 ± 5.6%, while degradation of chlorophyll b was negligible. In conclusion, the air drying of Galega kale without any pretreatment resulted in considerable deterioration of its quality characteristics and nutritional value.pt_PT
dc.description.versioninfo:eu-repo/semantics/submittedVersion
dc.identifier.citationOLIVEIRA, Sara M.; RAMOS, Inês; BRANDÃO, Teresa R.S.; SILVA, Cristina L.M. - Effect of air-drying temperature on the quality and bioactive characteristics of dried galega kale (brassica oleracea l. var. acephala). Journal of Food Processing and Preservation. ISSN 1745-4549. vol.39 (6), 2485-2496pt_PT
dc.identifier.doi10.1111/jfpp.12498pt_PT
dc.identifier.eid84953359061
dc.identifier.eissn1745-4549
dc.identifier.issn0145-8892
dc.identifier.urihttp://hdl.handle.net/10400.14/18841
dc.identifier.wos000368126300214
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley
dc.relationStudies on vegetables drying: development of new value-added products
dc.relationETHYLENE OXIDE AS A STERILISING AGENT OF MEDICAL DEVICES: LETHALITY ESTIMATION BY DEVELOPMENT OF KINETIC MODELLING STUDIES
dc.titleEffect of air-drying temperature on the quality and bioactive characteristics of dried galega kale (brassica oleracea l. var. acephala)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStudies on vegetables drying: development of new value-added products
oaire.awardTitleETHYLENE OXIDE AS A STERILISING AGENT OF MEDICAL DEVICES: LETHALITY ESTIMATION BY DEVELOPMENT OF KINETIC MODELLING STUDIES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F74815%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F75430%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F41419%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PEst-OE%2FEQB%2FLA0016%2F2013/PT
oaire.citation.endPage2496
oaire.citation.issue6
oaire.citation.startPage2485
oaire.citation.titleJournal of Food Processing and Preservation
oaire.citation.volume39
oaire.fundingStreamSFRH
oaire.fundingStream3599-PPCDT
person.familyNameOliveira
person.familyNameRamos
person.familyNameBrandão
person.familyNameSilva
person.givenNameSara
person.givenNameInês
person.givenNameTeresa
person.givenNameCristina
person.identifierJ-9418-2012
person.identifier1473674
person.identifier.ciencia-id7913-12FC-8DE9
person.identifier.ciencia-id7B19-E23B-BB31
person.identifier.ciencia-id6611-634A-132C
person.identifier.orcid0000-0003-0649-2694
person.identifier.orcid0000-0002-8390-0690
person.identifier.orcid0000-0002-8857-6471
person.identifier.orcid0000-0002-0495-3955
person.identifier.ridM-5180-2013
person.identifier.ridI-9890-2017
person.identifier.ridJ-9418-2012
person.identifier.ridA-3568-2013
person.identifier.scopus-author-id16022986400
person.identifier.scopus-author-id7006766707
person.identifier.scopus-author-id6602174128
person.identifier.scopus-author-id7201387397
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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