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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
24/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GALETTA, M.A.; REINA, L.; RESQUÍN, F.; MANTERO, C.; GONZÁLEZ-PÉREZ, J.A.; ALMENDROS, G.; MENÉNDEZ, M.P.; GONZÁLEZ-VILADA, F.J. |
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Afiliación : |
Universidad de la República (UdelaR)/ Facultad de Química.; Universidad de la República (UdelaR)/ Facultad de Química.; JOSE FERNANDO RESQUIN PEREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidad de la República (UdelaR)/ Facultad de Agronomía.; Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS-CSIC, Seville, Spaine.; SpaineMNCN-CSIC, Madrid, Spain.; Universidad de la República (UdelaR)/ Facultad de Química.; Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS-CSIC, Seville, Spain. |
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Título : |
Chemometric appraisal of lignin pyrolytic assemblages from Eucalyptus woods relevant for pulping in Uruguay. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Journal of Analytical and Applied Pyrolysis, 2014, v. 109, p. 296-303. |
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DOI : |
10.1016/j.jaap.2014.08.001 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 5 January 2014 // Accepted 2 August 2014 // Available online 13 August 2014. |
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Contenido : |
Analytical pyrolysis (Py-GC/MS) at 500°C was applied to study wood composition of Eucalyptus species(Eucalyptus grandis, Eucalyptus dunnii and Eucalyptus benthamii) which are relevant for pulping inUruguay. Multivariate data treatments mainly principal component analysis and discriminant analy-sis were used to explore differences between the original wood cultivars. Multivariate analyses withautomatic backwards variable selection indicated that simplified methoxyphenol patterns (up to 10compounds) are sufficient for wood discrimination in terms of species and geographical origin butalso with purposes of forecasting the ease of delignification of the resulting pulps measured as activealkali. No additional chemotaxonomical accuracy was achieved when the data sets were enlarged withcarbohydrate-derived products. On the other side, discriminant or forecasting models (partial leastsquares and multiple linear regression) were much less significant when based on individual diag-nostic compounds, groups of compounds, or the classical syringyl-to-guaiacyl (S/G) ratio. Principalcomponent analysis indicated that the variability in lignin composition due to bioclimatic variations(spatial replications) was more significant than that due to phylogenetic differences (species andcultivars). |
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Palabras claves : |
ANALYTICAL PYROLYSIS; DISCRIMINANT ANALYSIS; FORESTACIÓN; LIGNIN METHOXYPHENOLS; MULTIPLE REGRESSION MODELS; PARTIAL LEAST SQUARES REGRESSION; PRINCIPAL COMPONENT ANALYSIS. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 02390naa a2200313 a 4500
001 1017467
005 2019-09-24
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1016/j.jaap.2014.08.001$2DOI
100 1 $aGALETTA, M.A.
245 $aChemometric appraisal of lignin pyrolytic assemblages from Eucalyptus woods relevant for pulping in Uruguay.$h[electronic resource]
260 $c2014
500 $aArticle history: Received 5 January 2014 // Accepted 2 August 2014 // Available online 13 August 2014.
520 $aAnalytical pyrolysis (Py-GC/MS) at 500°C was applied to study wood composition of Eucalyptus species(Eucalyptus grandis, Eucalyptus dunnii and Eucalyptus benthamii) which are relevant for pulping inUruguay. Multivariate data treatments mainly principal component analysis and discriminant analy-sis were used to explore differences between the original wood cultivars. Multivariate analyses withautomatic backwards variable selection indicated that simplified methoxyphenol patterns (up to 10compounds) are sufficient for wood discrimination in terms of species and geographical origin butalso with purposes of forecasting the ease of delignification of the resulting pulps measured as activealkali. No additional chemotaxonomical accuracy was achieved when the data sets were enlarged withcarbohydrate-derived products. On the other side, discriminant or forecasting models (partial leastsquares and multiple linear regression) were much less significant when based on individual diag-nostic compounds, groups of compounds, or the classical syringyl-to-guaiacyl (S/G) ratio. Principalcomponent analysis indicated that the variability in lignin composition due to bioclimatic variations(spatial replications) was more significant than that due to phylogenetic differences (species andcultivars).
653 $aANALYTICAL PYROLYSIS
653 $aDISCRIMINANT ANALYSIS
653 $aFORESTACIÓN
653 $aLIGNIN METHOXYPHENOLS
653 $aMULTIPLE REGRESSION MODELS
653 $aPARTIAL LEAST SQUARES REGRESSION
653 $aPRINCIPAL COMPONENT ANALYSIS
700 1 $aREINA, L.
700 1 $aRESQUÍN, F.
700 1 $aMANTERO, C.
700 1 $aGONZÁLEZ-PÉREZ, J.A.
700 1 $aALMENDROS, G.
700 1 $aMENÉNDEZ, M.P.
700 1 $aGONZÁLEZ-VILADA, F.J.
773 $tJournal of Analytical and Applied Pyrolysis, 2014$gv. 109, p. 296-303.
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