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Effects of depuration on metal levels and health status of bivalve molluscs

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dc.contributor.authorAnacleto, Patrícia
dc.contributor.authorLuísa Maulvault, Ana
dc.contributor.authorNunes, Maria Leonor
dc.contributor.authorCarvalho, Maria Luísa
dc.contributor.authorRosa, Rui
dc.contributor.authorMarques, António
dc.date.accessioned2020-01-19T19:59:00Z
dc.date.available2020-01-19T19:59:00Z
dc.date.issued2015
dc.description.abstractDepuration has been mandatory to eliminate microorganisms in bivalve molluscs, but not to eliminate toxic chemicals, since there is still shortage of scientific evidence about the efficacy of depuration to decrease the levels of toxic chemicals in bivalves. This study aims to assess the effects of depuration on the levels of toxic, macro and trace elements in three bivalve species (Ruditapes philippinarum-RP, Mytilus galloprovincialis-MG and Scrobicularia plana-SP), taking into account their condition. During depuration, a significant reduction of elements occurred in RP (Fe, Pb, Cu, Rb, Br, Hg, Cd and As), MG (Cl, Sr, Fe, Pb and Br) and SP (Fe, Pb, Cu and Rb), while an increase was registered for other elements in RP (Cl and Sr), MG (S and Zn) and SP (Cl, Zn, Br and Sr). After two days of depuration, Pb in SP had decreased to levels below the permissible limits, thus allowing this species to be acceptable for human consumption as far as toxic elements are concerned. SP revealed the highest glycogen levels compared to the other species indicating different physiological requirements. However, in this species glycogen levels significantly decreased after two days of depuration and mortality increased. In contrast, in MG and RP glycogen and mortality did not vary significantly during depuration. Therefore, SP should be only depurated for a maximum period of two days. Overall, the results of this study are particularly useful to retailers to ensure high quality bivalve products for consumers. Additionally, glycogen can be used as a suitable biomarker of healthy status of bivalve species during depuration.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.foodcont.2014.07.055pt_PT
dc.identifier.issn0956-7135
dc.identifier.urihttp://hdl.handle.net/10451/41130
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S095671351400440Xpt_PT
dc.subjectDepurationpt_PT
dc.subjectBivalvespt_PT
dc.subjectMortalitypt_PT
dc.subjectGlycogenpt_PT
dc.subjectToxic elementspt_PT
dc.subjectMacro and trace elementspt_PT
dc.titleEffects of depuration on metal levels and health status of bivalve molluscspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage501pt_PT
oaire.citation.startPage493pt_PT
oaire.citation.titleFood Controlpt_PT
oaire.citation.volume47pt_PT
person.familyNameAnacleto
person.familyNameMaulvault
person.familyNameRosa
person.givenNamePatrícia
person.givenNameAna Luísa
person.givenNameRui
person.identifier1245458
person.identifier430759
person.identifier.ciencia-id9F13-3723-E4B3
person.identifier.ciencia-id9F12-BC2C-5527
person.identifier.ciencia-id2B10-7D61-FF7A
person.identifier.orcid0000-0003-3750-9583
person.identifier.orcid0000-0003-4382-1135
person.identifier.orcid0000-0003-2801-5178
person.identifier.ridH-5933-2013
person.identifier.ridK-6781-2014
person.identifier.ridA-4580-2009
person.identifier.scopus-author-id6507412894
person.identifier.scopus-author-id50461904700
person.identifier.scopus-author-id7102610088
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa98801c6-5d8c-44cf-8b47-5fa0bc9a2f31
relation.isAuthorOfPublication6a23e7c0-317a-48f9-b6c2-e0081dd67fa0
relation.isAuthorOfPublication395f77c0-ac42-4b7c-9b4a-07fdb75305cc
relation.isAuthorOfPublication.latestForDiscovery6a23e7c0-317a-48f9-b6c2-e0081dd67fa0

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