(E)-2-Nonenal determination in brazilian beers using headspace solid-phase microextraction and gas chromatographic coupled mass spectrometry (HS-SPME-GC-MS)

dc.creatorScherer, R
dc.creatorWagner, R
dc.creatorKowalski, CH
dc.creatorGodoy, HT
dc.date2010
dc.dateMAY
dc.date2014-07-30T13:38:34Z
dc.date2015-11-26T16:29:44Z
dc.date2014-07-30T13:38:34Z
dc.date2015-11-26T16:29:44Z
dc.date.accessioned2018-03-28T23:10:48Z
dc.date.available2018-03-28T23:10:48Z
dc.identifierCiencia E Tecnologia De Alimentos. Soc Brasileira Ciencia Tecnologia Alimentos, v. 30, n. 161, n. 165, 2010.
dc.identifier0101-2061
dc.identifierWOS:000279661500024
dc.identifier10.1590/S0101-20612010000500024
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52437
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52437
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269802
dc.description(E)-2-nonenal is considered an important off-flavor of beer, related to the flavor of beer staling. In this study, a new method for determination of (E)-2-nonenal in beer using headspace solid-phase microextraction and gas chromatographic coupled mass spectrometry (HS-SPME-GC-MS) was developed and applied in Brazilian beer samples. The extractions were carried out in CAR-PDMS (carboxen-polydimethylsiloxane) fiber and the best results were found with 15 minutes of equilibrium and 90 minutes of extraction at 50 degrees C. The method was linear in the range from 0.02 to 4.0 mu g.L(-1) with correlation coefficient of 0.9994. The limits of detection and quantification were 0.01 and 0.02 mu g.L(-1), respectively. 96.5% of recovery and 4% precision (RSD) were obtained in the fortification of beer samples with 2.0 mu g.L(-1) of (E)-2-nonenal. The developed method proved to be simple, efficient and highly sensitive to the determination of this analyte being easily applied in the quality control of the brewery. (E)-2-nonenal was found in all beer samples analyzed with levels between 0.17 and 0.42 mu g.L(-1).
dc.description30
dc.description1
dc.description161
dc.description165
dc.languageen
dc.publisherSoc Brasileira Ciencia Tecnologia Alimentos
dc.publisherCampinas
dc.publisherBrasil
dc.relationCiencia E Tecnologia De Alimentos
dc.relationCiencia Tecnol. Aliment.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectbeer
dc.subject(E)-2-nonenal
dc.subjectoff-flavor
dc.subjectvolatile compound
dc.subjectSPME
dc.subjectAldehydes
dc.subjectFibers
dc.subjectDerivatization
dc.subjectOptimization
dc.subjectExtraction
dc.title(E)-2-Nonenal determination in brazilian beers using headspace solid-phase microextraction and gas chromatographic coupled mass spectrometry (HS-SPME-GC-MS)
dc.typeArtículos de revistas


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