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Open Access item Determining the influence of eucalypt lignin composition in paper pulp yield using Py-GC/MS

Authors:Río Andrade, José Carlos del
Gutiérrez Suárez, Ana
Hernando, Marina
Landín, Pedro
Romero Sánchez, Javier
Martínez Ferrer, Ángel Tomás
Keywords:Eucalyptus globulus, Wood, Lignin, S/G ratio, Pulp yield, Delignification, Pyrolysis
Issue Date:2005
Publisher:Elsevier
Citation:Journal of Analytical and Applied Pyrolysis 74: 110-115 (2005)
Abstract:A set of Eucalyptus globulus woods from different origins and growth conditions, giving a wide range of pulp yields (from 40% to 60%) upon kraft cooking, was analyzed using Py-GC/MS. The carbohydrate-derived compounds and the compounds derived from syringyl (S) and guaiacyl (G) lignin units were analyzed and the lignin/carbohydrate and S/G ratios determined. Eucalypt woods giving higher pulp yield released higher amounts of S-type compounds upon Py-GC/MS. A significant correlation was observed between pulp yield and the lignin composition in terms of the S/G ratio. By contrast, the lignin/carbohydrate ratio obtained by Py-GC/MS, did not show a significant correlation with the pulp yield. This indicates that the lignin composition is a more important parameter influencing pulp yield than the lignin content.
Description:1)Instituto de Recursos Naturales y Agrobiología de Sevilla, P.O. Box 1052, 41080-Seville, Spain; 2)ENCE-CIT, Ctra. Campañó, Ribeiro-Vao, 36157 Pontevedra, Spain; 3)Centro de Investigaciones Biológicas, Ramiro de Maeztu 9, E-28040 Madrid, Spain. E-mail address: delrio@irnase.csic.es (J.C. del Río)
URI:http://hdl.handle.net/10261/34812
ISSN:0165-2370
???metadata.dc.identifier.doi???:http://dx.doi.org/10.1016/j.jaap.2004.10.010
Appears in Collections:(IRNAS) Artículos

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