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Quantification of tocopherols and tocotrienols in Portuguese olive oils using HPLC with three different detection systems

2006Journal article Open access
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dc.contributor.authorCunha, Sara C.
dc.contributor.authorAmaral, Joana S.
dc.contributor.authorFernandes, J.O.
dc.contributor.authorOliveira, Beatriz
dc.date.accessioned2010-01-26T22:00:40Z
dc.date.available2010-01-26T22:00:40Z
dc.date.issued2006
dc.description.abstractThree different HPLC detection systems were compared for the determination of tocopherols and tocotrienols in olive oil: fluorescence and diode array connected in series, ultraviolet, and evaporative light scattering. The best results were obtained with the fluorescence detector, which was successfully applied in the quantification of tocopherols and tocotrienols in 18 samples of Portuguese olive oils. To support the validity of the method, the parameters evaluated were linearity, detection limits, repeatability, and recovery. All of the studied samples showed similar qualitative profiles with six identified compounds: R-T, -T, γ-T, δ-T, R-T3, and γ-T3. R-Tocopherol (R-T) was the main vitamin E isomer in all samples ranging from 93 to 260 mg/kg. The total tocopherols and tocotrienols ranged from 100 to 270 mg/kg. Geographic origin did not seem to influence the tocopherol and tocotrienol composition of the olive oils under evaluation.pt
dc.identifier.citationCunha, S.C.; Amaral, J.S.; Fernandes, J.O.; Oliveira, M.B.P.P. (2006). Quantification of tocopherols and tocotrienols in Portuguese olive oils using HPLC with three different detection systems. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 54:9, p.3351–3356pt
dc.identifier.doi10.1021/jf053102n
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/1483
dc.language.isoengpt
dc.publisherACSpt
dc.subjectTocopherolspt
dc.subjectTocotrienolspt
dc.subjectOlive oilpt
dc.subjectNP-HPLCpt
dc.titleQuantification of tocopherols and tocotrienols in Portuguese olive oils using HPLC with three different detection systemspt
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3356pt
oaire.citation.startPage3351pt
oaire.citation.titleJournal of Agricultural and Food Chemistrypt
person.familyNameAmaral
person.givenNameJoana S.
person.identifier.ciencia-id5319-7DE8-BEDA
person.identifier.orcid0000-0002-3648-7303
rcaap.rightsopenAccesspt
rcaap.typearticlept
relation.isAuthorOfPublication42be2cf4-adc4-4e7f-ac60-7aab515b38cd
relation.isAuthorOfPublication.latestForDiscovery42be2cf4-adc4-4e7f-ac60-7aab515b38cd

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