Determination of Eucalyptus spp lignin S/G ratio: a comparison between methods

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorNunes, C. A.-
Autor(es): dc.creatorLima, C. F.-
Autor(es): dc.creatorBarbosa, L. C. A.-
Autor(es): dc.creatorColodette, J. L.-
Autor(es): dc.creatorGouveia, A. F. G.-
Autor(es): dc.creatorSilvério, F. O.-
Data de aceite: dc.date.accessioned2026-02-09T11:47:58Z-
Data de disponibilização: dc.date.available2026-02-09T11:47:58Z-
Data de envio: dc.date.issued2014-12-03-
Data de envio: dc.date.issued2014-12-03-
Data de envio: dc.date.issued2010-01-05-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/4744-
Fonte completa do material: dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0960852410000556-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1147713-
Descrição: dc.descriptionThe syringyl/guaiacyl ratio was determined for six different Eucalyptus spp. wood clones cultivated in four regions in Brazil. The determinants were made by pyrolysis–gas chromatography–mass spectrome- try (Py–GC–MS) and the results were compared with those obtained by alkaline nitrobenzene oxidation method. The S/G ratios were obtained considering all the identified lignin derivatives in the pyrograms and also using two groups of markers. The first group of markers consisted of guaiacol, 4-methylguaiacol, 4-vinylguaiacol, trans-isoeugenol, syringol, 4-methylsyringol, 4-vinylsyringol and trans-4-propenylsyrin- gol compounds as markers. The second group included guaiacol, 4-methylguaiacol, 4-vinylguaiacol, van- illin, 4-ethylsyringol, 4-vinylsyringol, syringaldehyde, syringylacetone and trans-4-propenylsyringol. It was observed from the statistical analysis that the values of S/G obtained by Py–GC–MS using the two groups of markers did not differ significantly from those obtained by nitrobenzene oxidation method.-
Idioma: dc.languageen-
Publicador: dc.publisherScienceDirect-
Direitos: dc.rightsacesso aberto-
???dc.source???: dc.sourceBioresource Technology-
Palavras-chave: dc.subjectLignin-
Palavras-chave: dc.subjectS/G ratio-
Palavras-chave: dc.subjectAnalytical pyrolysis-
Título: dc.titleDetermination of Eucalyptus spp lignin S/G ratio: a comparison between methods-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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