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dc.contributor.authorColares, Carla Jovania Gomespt_BR
dc.contributor.authorPastore, Tereza Cristina Monteiropt_BR
dc.contributor.authorCoradin, Vera Teresinha Rauberpt_BR
dc.contributor.authorCamargos, José Arlete Alvespt_BR
dc.contributor.authorMoreira, Alessandro Cézar de Oliveirapt_BR
dc.contributor.authorRubim, Joel Camargopt_BR
dc.contributor.authorBraga, Jez Willian Batistapt_BR
dc.date.accessioned2017-12-07T05:12:54Z-
dc.date.available2017-12-07T05:12:54Z-
dc.date.issued2015-06pt_BR
dc.identifier.citationCOLARES, Carla Jovania Gomes et al. Exploratory analysis of the distribution of lignin and cellulose in woods by raman imaging and chemometrics. Journal of the Brazilian Chemical Society, São Paulo, v. 26, n. 6, p. 1297-1305, jun. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015000601297&lng=en&nrm=iso>. Acesso em: 16 abr. 2018. doi: http://dx.doi.org/10.5935/0103-5053.20150096.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/29691-
dc.language.isoenpt_BR
dc.publisherSociedade Brasileira de Químicapt_BR
dc.rightsAcesso Abertopt_BR
dc.titleExploratory analysis of the distribution of lignin and cellulose in woods by raman imaging and chemometricspt_BR
dc.typeArtigopt_BR
dc.subject.keywordEspectroscopiapt_BR
dc.subject.keywordCelulosept_BR
dc.subject.keywordLigninapt_BR
dc.subject.keywordMadeirapt_BR
dc.rights.licenseJournal of the Brazilian Chemical Society - This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium provided the original work is properly cited (CC BY NC 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015000601297&lng=en&nrm=iso. Acesso em: 16 abr. 2018.-
dc.identifier.doihttp://dx.doi.org/10.5935/0103-5053.20150096pt_BR
dc.description.abstract1The determinations of cellulose and lignin are important in wood analysis from both perspectives: chemistry composition, commercial and industrial application of woods. In this context, Raman image spectroscopy was applied in the determination of cellulose and lignin distribution in wood surfaces of Swietenia macrophylla King (Mahogany) and Eucalyptus hybrid (E. urophylla × E. camaldulensis). The relative concentration maps were obtained by applying a multivariate curve resolution procedure. The estimated Raman spectra for cellulose and lignin agrees with the ones available in the literature. The cellulose concentration maps showed similar variations for both studied species with an average value of nearly 85% as obtained by the reference method. The lignin concentration maps were somewhat different. The Eucalyptus hybrid presents a broader distribution (20 to 45%) while for Mahogany it is nearly constant, around 25%, with localized regions presenting contents of 45 to 65% of lignin. The reference method showed that the mean lignin content of both species is 27%. The cellulose and lignin concentration maps agree with the biological functions of the anatomic structures observed in the images.-
dc.description.unidadeInstituto de Química (IQ)pt_BR
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