Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleElectrospray ionization mass spectrometry fingerprinting of Brazilian artisan cachaca aged in different wood caskspt_BR
dc.contributor.authorde Souza, PPpt_BR
dc.contributor.authorSiebald, HGLpt_BR
dc.contributor.authorAugusti, DVpt_BR
dc.contributor.authorNeto, WBpt_BR
dc.contributor.authorAmorim, VMpt_BR
dc.contributor.authorCatharino, RRpt_BR
dc.contributor.authorEberlin, MNpt_BR
dc.contributor.authorAugusti, Rpt_BR
unicamp.authorUniv Fed Minas Gerais, Dept Chem, BR-31270901 Belo Horizonte, MG, Brazil Univ Estadual Campinas, Inst Chem, ThoMSon Mass Spectrometry Lab, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectelectrospray ionizationpt_BR
dc.subjectmass spectrometrypt_BR
dc.subjectaged cachaca samplespt_BR
dc.subjectwood caskspt_BR
dc.subjectprincipal component analysispt_BR
dc.subjecthierarchical cluster analysispt_BR
dc.subject.wosOak Woodpt_BR
dc.subject.wosCider Brandypt_BR
dc.subject.wosVolatile Compoundspt_BR
dc.subject.wosDistilled Spiritspt_BR
dc.subject.wosAging Timept_BR
dc.description.abstractWe have investigated the capability of direct infusion electrospray ionization mass spectrometry in the negative ion mode, ESI(-)-MS, to differentiate representative samples of artisan cachaa, a Brazilian sugar cane distillate of large production, aged in four different types of wood casks: amburana (Amburana cearensis), jequitiba (Cariniana estrellensis), balm (Myroxylon peruiferum), and oak (Quercus rubra). The ESI(-)-MS were found to be very characteristic, showing sets of diagnostic ions for each of the four types of samples: amburana (m/z 271, 313, 377), jequitiba (m/z 143, 171, 255), balm (m/z 137, 269, 283, 297), and oak (m/z 197, 301, 307). Furthermore, principal component (PCA) and hierarchical cluster analysis (HCA), applied to the ESI(-)-MS data, divided these samples into four definite categories. The influence of the aging time on the ESI(-)-MS fingerprints of the cachaa samples stored in oak casks was also established. An inversion in the relative intensity of the diagnostic ions of m/z 307 and 301 is detected in the ESI(-)-MS as the aging time increased from 1 to 2 years. The chemical structures of the major cachaa components were proposed on the basis of the following: (a) the comparison of the ESI(-)-MS/MS of the diagnostic anions with those of the authentic anions or (b) the interpretation of the fragmentation patterns of the previously unknown diagnostic anions. Hence, direct infusion ESI(-)-MS allows not only a rapid, simple, and accurate way to distinguish among cachaa samples stored in different wood casks but also monitoring changes in their chemical composition according to the aging
dc.relation.ispartofJournal Of Agricultural And Food Chemistrypt_BR
dc.relation.ispartofabbreviationJ. Agric. Food Chem.pt_BR
dc.publisherAmer Chemical Socpt_BR
dc.identifier.citationJournal Of Agricultural And Food Chemistry. Amer Chemical Soc, v. 55, n. 6, n. 2094, n. 2102, 2007.pt_BR
dc.sourceWeb of Sciencept_BR
dc.description.provenanceMade available in DSpace on 2014-11-17T05:43:33Z (GMT). No. of bitstreams: 1 WOS000244867300007.pdf: 193767 bytes, checksum: 8bb4f1e8723e033ad085a96383c37d11 (MD5) Previous issue date: 2007en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:39:29Z (GMT). No. of bitstreams: 2 WOS000244867300007.pdf: 193767 bytes, checksum: 8bb4f1e8723e033ad085a96383c37d11 (MD5) WOS000244867300007.pdf.txt: 34112 bytes, checksum: 130274cbbd8c74c20232c63aa0d84e36 (MD5) Previous issue date: 2007en
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOS000244867300007.pdf189.23 kBAdobe PDFView/Open

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