Rapid method for simultaneous determination of cis-9, trans-11 and trans-10, cis-12 conjugated linoleic acid isomers in milk by gc-fid

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dc.creatorBrenda Lee Simas Porto
dc.creatorIsaura Daniele Leite Faria
dc.creatorJéssica Cordeiro Queiroz de Souza
dc.creatorOlívia Brito de Oliveira Moreira
dc.creatorMarco Antonio Sundfeld da Gama
dc.creatorMarcone Augusto Leal de Oliveira
dc.date.accessioned2024-12-06T19:20:20Z
dc.date.accessioned2025-09-09T00:53:09Z
dc.date.available2024-12-06T19:20:20Z
dc.date.issued2023
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetos
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.21577/0100-4042.20230026
dc.identifier.issn1678-7064
dc.identifier.urihttps://hdl.handle.net/1843/78513
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofQuímica Nova
dc.rightsAcesso Aberto
dc.subjectLeite
dc.subjectNanopartículas
dc.subjectAnalise cromatografica
dc.subject.otherFast GC
dc.subject.otherCLA
dc.subject.otherSLB-IL111
dc.subject.otherFatty acids
dc.subject.otherMilk
dc.titleRapid method for simultaneous determination of cis-9, trans-11 and trans-10, cis-12 conjugated linoleic acid isomers in milk by gc-fid
dc.typeArtigo de periódico
local.citation.epage746
local.citation.spage743
local.citation.volume46
local.description.resumoRuminant milk is the lead source of conjugated linoleic acid (CLA) in the human diet, with cis-9, trans-11 CLA being the major among all. Small amounts of trans-10, cis-12 CLA are also found in synthetic supplements. Since both isomers are biologically active with potential health benefits, there is great interest in quantifying them for quality control routines. An alternative method for the analysis of the baforementioned CLAs by fast gas chromatography (GC) is discussed in the present study. The fatty acid methyl ester mixture obtained by alkaline catalysis was injected into a GC equipped with a fame ionization detector (FID) and fitted with an ionic liquid SLB-IL111 chromatographic column (15 m × 0.10 mm × 0.08 µm). Separation was achieved in less than 5 min using a 168 °C isotherm run. Both CLA isomers were quantified by using of single point standard addition statistical approach. Results were contested to those obtained using the recommended 100 m long CP-Sil88 capillary column and none evidence of significant differences was found within 95% confidence interval. Therefore, the proposed method could be valuable to focused regulatory routines of large numbers of samples with greater analytical frequency.
local.identifier.orcidhttps://orcid.org/0000-0003-3469-0284
local.identifier.orcidhttps://orcid.org/0000-0001-5278-9865
local.identifier.orcidhttps://orcid.org/0000-0002-8073-4236
local.identifier.orcidhttps://orcid.org/0000-0002-1970-5882
local.identifier.orcidhttps://orcid.org/0000-0001-6026-9608
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://quimicanova.sbq.org.br/pdf/NT2022-0251

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RAPID METHOD FOR SIMULTANEOUS DETERMINATION OF CIS-9, TRANS-11 AND TRANS-10, CIS-12 CONJUGATED LINOLEIC ACID ISOMERS IN MILK BY GC-FID.pdf
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