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Influence on pulping yield and pulp properties of wood density of Acacia melanoxylon

2012Journal article Restricted access
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dc.contributor.authorSantos, António J.
dc.contributor.authorAnjos, O.
dc.contributor.authorAmaral, Emília
dc.contributor.authorGil, Nuno
dc.contributor.authorPereira, Helena
dc.contributor.authorSimões, Rogério
dc.date.accessioned2013-07-08T16:40:33Z
dc.date.available2013-07-08T16:40:33Z
dc.date.issued2012
dc.descriptionDOI 10.1007/s10086-012-1286-2por
dc.description.abstractWood density and pulp yield are key parameters in the evaluation of tree productivity and quality for pulping and their relationships are of high practical importance. The influence of wood density on pulp yield and other pulp quality parameters was investigated using Acacia melanoxylon and its natural variability as a case study. Twenty trees were harvested (five trees in each of four sites in Portugal), and wood discs taken at different height levels, from the base to the top of the tree, providing 100 wood samples, covering the natural variability of wood density ranging from 449 kg m-3 to 649 kg m-3. Under the same experimental conditions of kraft pulping, screened pulp yield ranged 47.0–58.2 %, Kappa number 10.9–18.4, ISO brightness 14.9–45.6, fibre length 0.660–0.940 mm and fibre width 16.2–22.9 lm. The pulp yield and Kappa number were not correlated with wood density. Higher pulp yields were associated with lower Kappa numbers and alkali consumption, suggesting the important role of chemical composition of wood on kraft cooking. The results confirm the high pulping potential of Acacia melanoxylon trees grown in Portugal and suggest the possibility of tree selection using both wood density and pulp yield.por
dc.identifier.citationSANTOS, A. [et al.] (2012) - Influence on pulping yield and pulp properties of wood density of Acacia melanoxylon. J. Woo Sci. ISSN 1435-0211. 58. P. 479-486.por
dc.identifier.urihttp://hdl.handle.net/10400.11/1987
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s10086-012-1286-2por
dc.subjectAcacia melanoxylonpor
dc.subjectWood densitypor
dc.subjectPulp yieldpor
dc.subjectFibre lengthpor
dc.subjectKappa numberpor
dc.titleInfluence on pulping yield and pulp properties of wood density of Acacia melanoxylonpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage486por
oaire.citation.startPage479por
oaire.citation.titleJ. Wood Sci.por
oaire.citation.volume58por
person.familyNameAnjos
person.givenNameOfélia
person.identifier.ciencia-idC21D-D8C7-3037
person.identifier.orcid0000-0003-0267-3252
person.identifier.ridG-2808-2012
person.identifier.scopus-author-id23395659700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationdf9191ae-0bbb-4bb8-bbdc-0f79c7365876
relation.isAuthorOfPublication.latestForDiscoverydf9191ae-0bbb-4bb8-bbdc-0f79c7365876

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