Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/200809
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleNear Infrared Emission Photometer For Measuring The Oxidative Stability Of Edible Oils.pt_BR
dc.contributor.authorVieira, Francisco Sennapt_BR
dc.contributor.authorPasquini, Celiopt_BR
unicamp.authorFrancisco Senna Vieira, Chemistry Institute, State University of Campinas - UNICAMP, 13083-970 Cidade Universitária, Campinas, SP, Brazil. Electronic address: franciscosennavieira@gmail.com.pt_BR
unicamp.author.externalCelio Pasquini,pt
dc.subjectEquipment Designpt_BR
dc.subjectOilspt_BR
dc.subjectOxidation-reductionpt_BR
dc.subjectSpectroscopy, Near-infraredpt_BR
dc.subjectTime Factorspt_BR
dc.subjectAutoxidationpt_BR
dc.subjectEdible Oilpt_BR
dc.subjectItpt_BR
dc.subjectInstrumentationpt_BR
dc.subjectNirespt_BR
dc.subjectNear Infrared Emission Photometerpt_BR
dc.subjectOxidative Stabilitypt_BR
dc.subjectInduction Timept_BR
dc.subjectNear Infrared Emission Spectroscopypt_BR
dc.description.abstractNear infrared emission spectroscopy (NIRES) allows the determination of the induction time (IT) of edible oils in accelerated oxidation experiments by monitoring the emissivity of a band at 2900 nm, which corresponds to the formation of hydroperoxides. In this work, a new near infrared emission photometer dedicated to the determination of oxidative stability is described. The photometer presents several advantages compared to the previously reported NIRES instrument, such as lower cost and extreme simplicity of design and maintenance. The results obtained in the evaluation of the proposed instrument were compared with the official Rancimat method and instrument. The significant advantages include: faster analysis, lower sample consumption and operational simplicity. It is demonstrated that the procedure for determination of oxidative stability of oils can be significantly simplified and performed by measuring the sample emission at only one spectral region centered at 2900 nm. Also, the proposed instrument and method present precision equivalent to the Rancimat method (coefficient of variation=5.0%). A significant correlation between the methods has been found (R(2)=0.81).en
dc.relation.ispartofAnalytica Chimica Actapt_BR
dc.relation.ispartofabbreviationAnal. Chim. Actapt_BR
dc.date.issued2013-Seppt_BR
dc.identifier.citationAnalytica Chimica Acta. v. 796, p. 101-7, 2013-Sep.pt_BR
dc.language.isoengpt_BR
dc.description.volume796pt_BR
dc.description.firstpage101-7pt_BR
dc.rightsfechadopt_BR
dc.rights.holderCopyright © 2013 Elsevier B.V. All rights reserved.pt_BR
dc.sourcePubMedpt_BR
dc.identifier.issn1873-4324pt_BR
dc.identifier.doi10.1016/j.aca.2013.08.028pt_BR
dc.identifier.urlhttp://www.ncbi.nlm.nih.gov/pubmed/24016589pt_BR
dc.date.available2015-11-27T13:32:09Z-
dc.date.accessioned2015-11-27T13:32:09Z-
dc.description.provenanceMade available in DSpace on 2015-11-27T13:32:09Z (GMT). No. of bitstreams: 1 pmed_24016589.pdf: 819647 bytes, checksum: 3fc3c1a00f83efb8f4bb78a79a88c067 (MD5) Previous issue date: 2013en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200809-
dc.identifier.idPubmed24016589pt_BR
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
pmed_24016589.pdf800.44 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.