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Extraction of ochratoxin A in bread samples by the QuEChERS methodology

2012Journal article Open access
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dc.contributor.authorPaíga, Paula
dc.contributor.authorMorais, Simone
dc.contributor.authorOliva-Teles, Maria Teresa
dc.contributor.authorCorreia, Manuela
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorDuarte, S. C.
dc.contributor.authorPena, Angelina
dc.contributor.authorLino, C. M.
dc.date.accessioned2013-10-03T09:37:02Z
dc.date.available2013-10-03T09:37:02Z
dc.date.issued2012
dc.description.abstractA QuEChERS method for the extraction of ochratoxin A (OTA) from bread samples was evaluated. A factorial design (23) was used to find the optimal QuEChERS parameters (extraction time, extraction solvent volume and sample mass). Extracts were analysed by LC with fluorescence detection. The optimal extraction conditions were: 5 g of sample, 15 mL of acetonitrile and 3 min of agitation. The extraction procedure was validated by systematic recovery experiments at three levels. The recoveries obtained ranged from 94.8% (at 1.0 μg kg -1) to 96.6% (at 3.0 μg kg -1). The limit of quantification of the method was 0.05 μg kg -1. The optimised procedure was applied to 20 samples of different bread types (‘‘Carcaça’’, ‘‘Broa de Milho’’, and ‘‘Broa de Avintes’’) highly consumed in Portugal. None of the samples exceeded the established European legal limit of 3 μg kg -1.por
dc.identifier.doi10.1016/j.foodchem.2012.06.045pt_PT
dc.identifier.issn0308-8146
dc.identifier.urihttp://hdl.handle.net/10400.22/2141
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relation.ispartofseriesFood Chemistry; Vol. 135, Issue 4
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0308814612010187por
dc.subjectOchratoxin Apor
dc.subjectBreadpor
dc.subjectQuEChERSpor
dc.subjectFactorial designpor
dc.titleExtraction of ochratoxin A in bread samples by the QuEChERS methodologypor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2528por
oaire.citation.startPage2522por
oaire.citation.volume135por
person.familyNamePaíga
person.familyNameMorais
person.familyNameDelerue-Matos
person.givenNamePaula
person.givenNameSimone
person.givenNameCristina
person.identifier1668889
person.identifier1598822
person.identifier.ciencia-id331A-5D6A-D3C8
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0002-9593-1355
person.identifier.orcid0000-0001-6433-5801
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridQ-4930-2018
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id6506638953
person.identifier.scopus-author-id7007053747
person.identifier.scopus-author-id6603741848
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication4a0677dc-0b54-4831-aa9a-4a73f0df911d
relation.isAuthorOfPublication7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication.latestForDiscovery4a0677dc-0b54-4831-aa9a-4a73f0df911d

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