Levels of copper in Nile tilapia from Brazil

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorNeves, Renato C. F.
dc.creatorMoraes, Paula M.
dc.creatorFerrari, Jeisson E. M.
dc.creatorLima, Paula M.
dc.creatorSantos, Felipe A.
dc.creatorde Castro, Gustavo Rocha
dc.creatorBarros, Margarida M.
dc.creatorPadilha, Pedro M.
dc.date2014-05-20T13:53:34Z
dc.date2016-10-25T17:04:03Z
dc.date2014-05-20T13:53:34Z
dc.date2016-10-25T17:04:03Z
dc.date2011-01-01
dc.date.accessioned2017-04-05T21:08:56Z
dc.date.available2017-04-05T21:08:56Z
dc.identifierFood Additives & Contaminants Part B-surveillance. Abingdon: Taylor & Francis Ltd, v. 4, n. 4, p. 238-243, 2011.
dc.identifier1939-3210
dc.identifierhttp://hdl.handle.net/11449/19118
dc.identifierhttp://acervodigital.unesp.br/handle/11449/19118
dc.identifier10.1080/19393210.2011.632693
dc.identifierWOS:000299002200002
dc.identifierhttp://dx.doi.org/10.1080/19393210.2011.632693
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/865071
dc.descriptionThe purpose of this work was to determine the concentration of copper in samples of farmed Nile tilapia (Oreochromis niloticus L.) fillets purchased in the city of Botucatu (São Paulo, Brazil) and in fillet and liver samples of Tilapia fed diets supplemented with different concentrations of Cu from the Laboratory of Aquatic Organism Nutrition/FMVZ-UNESP (Botucatu, Brazil). The fillet samples were prepared by lyophilisation and cryogenic grinding into particles smaller than 60 mm, and copper was extracted ultrasonically using 0.10 mol l(-1) HCl as extraction solution. Copper determination was performed by graphite furnace atomic absorption spectrometry (GFAAS) with optimised temperatures of drying, pyrolysis, atomisation and cleaning. Palladium nitrate was injected into the samples as a chemical modifier and tungsten as a permanent modifier. Copper concentrations of 0.70-1.60mg kg(-1) were found, which are in line with Brazilian regulations. The accuracy and precision of the copper concentrations determined in this study were evaluated using certified standard Lake Michigan fish tissue (NIST SRM 1947)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherTaylor & Francis Ltd
dc.relationFood Additives & Contaminants Part B-surveillance
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectcopper
dc.subjectfeeding
dc.subjectanimal feed
dc.subjectfish
dc.subjectmineral
dc.titleLevels of copper in Nile tilapia from Brazil
dc.typeOtro


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