Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids
The morphological and chemical characteristics of the woods from several eucalypt hybrids from the Brazilian Genolyptus program were studied. The hybrids selected for this study were Eucalyptus grandis × E. urophylla (IP), E. urophylla × E. urophylla (U1×U2), E. grandis × [E. urophylla × E. globulus...
| Autores: | , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2012 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/51793 |
| Acesso em linha: | http://hdl.handle.net/10261/51793 |
| Access Level: | acceso abierto |
| Palavra-chave: | Eucalypt Wood Hybrids E. grandis × E. urophylla E. urophylla × E. urophylla E. grandis × [E. urophylla × E. globulus] [E. dunnii ×E. grandis] ×E. urophylla Lipids Sterols Pitch Lignin Fibers Vessels |
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Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybridsPrinsen, PepijnGutiérrez Suárez, AnaRencoret, JorgeNieto, LidiaJiménez-Barbero, JesúsBurnet, AuphéliaPetit-Conil, MichelColodette, Jorge LuizMartínez, Ángel T.Río Andrade, José Carlos delEucalyptWoodHybridsE. grandis × E. urophyllaE. urophylla × E. urophyllaE. grandis × [E. urophylla × E. globulus][E. dunnii ×E. grandis] ×E. urophyllaLipidsSterolsPitchLigninFibersVesselsThe morphological and chemical characteristics of the woods from several eucalypt hybrids from the Brazilian Genolyptus program were studied. The hybrids selected for this study were Eucalyptus grandis × E. urophylla (IP), E. urophylla × E. urophylla (U1×U2), E. grandis × [E. urophylla × E. globulus] (G1×UGL), and [E. dunnii × E. grandis] × E. urophylla (DG×U2). The analyses of the lipophilic extractives indicated a similar composition in all eucalypt hybrids, which were dominated by sitosterol, sitosterol esters and sitosteryl 3beta -D-glucopyranoside. These compounds are responsible for pitch deposition during kraft pulping of eucalypt wood. Some quantitative differences were found in the abundances of different lipid classes, the wood from U1×U2 having the lowest amounts of these pitch-forming compounds. The chemical composition and structure of lignins were characterized by Py-GC/MS and 2D-NMR that confirmed the predominance of syringyl over guaiacyl units and only showed traces of p-hydroxyphenyl units in all the woods, with the highest S/G ratio for G1×UGL. The 2D-NMR spectra gave additional information about the inter-unit linkages in the lignin polymer. All the lignins showed a predominance of beta -O-4 ether linkages (75–79% of total side-chains), followed by beta –beta resinol-type linkages (9–11%) and lower amounts of beta -5 phenylcoumaran-type, beta -1 spirodienone-type linkages or beta-1 open substructures. The lignin from the hybrid G1 ×UGL presented also the highest proportion of beta-O-4 linkages, and therefore, it is foreseen that the wood from this hybrid will be more easily delignifiable than the other selected Brazilian eucalypt hybrids. In complement to these chemical analyses, the morphological characterization of fibers, vessels and fines revealed that hybrid eucalypt clone DG×U2 presented the most interesting properties for the manufacture of paper pulps and biofuels.This study has been funded by the EU-project LIGNODECO (KBBE-244362), the Spanish project AGL2008-00709, and the CSIC project 201040E075. Pepijn Prinsen thanks the Spanish Ministry of Science for a FPI fellowship.Peer reviewedElsevier201220122012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/51793reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#KBBE-24436http://dx.doi.org/10.1016/j.indcrop.2011.11.014info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/517932026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| title |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| spellingShingle |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids Prinsen, Pepijn Eucalypt Wood Hybrids E. grandis × E. urophylla E. urophylla × E. urophylla E. grandis × [E. urophylla × E. globulus] [E. dunnii ×E. grandis] ×E. urophylla Lipids Sterols Pitch Lignin Fibers Vessels |
| title_short |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| title_full |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| title_fullStr |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| title_full_unstemmed |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| title_sort |
Morphological characteristics and composition of lipophilic extractives and lignin in Brazilian woods from different eucalypt hybrids |
| dc.creator.none.fl_str_mv |
Prinsen, Pepijn Gutiérrez Suárez, Ana Rencoret, Jorge Nieto, Lidia Jiménez-Barbero, Jesús Burnet, Auphélia Petit-Conil, Michel Colodette, Jorge Luiz Martínez, Ángel T. Río Andrade, José Carlos del |
| author |
Prinsen, Pepijn |
| author_facet |
Prinsen, Pepijn Gutiérrez Suárez, Ana Rencoret, Jorge Nieto, Lidia Jiménez-Barbero, Jesús Burnet, Auphélia Petit-Conil, Michel Colodette, Jorge Luiz Martínez, Ángel T. Río Andrade, José Carlos del |
| author_role |
author |
| author2 |
Gutiérrez Suárez, Ana Rencoret, Jorge Nieto, Lidia Jiménez-Barbero, Jesús Burnet, Auphélia Petit-Conil, Michel Colodette, Jorge Luiz Martínez, Ángel T. Río Andrade, José Carlos del |
| author2_role |
author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Eucalypt Wood Hybrids E. grandis × E. urophylla E. urophylla × E. urophylla E. grandis × [E. urophylla × E. globulus] [E. dunnii ×E. grandis] ×E. urophylla Lipids Sterols Pitch Lignin Fibers Vessels |
| topic |
Eucalypt Wood Hybrids E. grandis × E. urophylla E. urophylla × E. urophylla E. grandis × [E. urophylla × E. globulus] [E. dunnii ×E. grandis] ×E. urophylla Lipids Sterols Pitch Lignin Fibers Vessels |
| description |
The morphological and chemical characteristics of the woods from several eucalypt hybrids from the Brazilian Genolyptus program were studied. The hybrids selected for this study were Eucalyptus grandis × E. urophylla (IP), E. urophylla × E. urophylla (U1×U2), E. grandis × [E. urophylla × E. globulus] (G1×UGL), and [E. dunnii × E. grandis] × E. urophylla (DG×U2). The analyses of the lipophilic extractives indicated a similar composition in all eucalypt hybrids, which were dominated by sitosterol, sitosterol esters and sitosteryl 3beta -D-glucopyranoside. These compounds are responsible for pitch deposition during kraft pulping of eucalypt wood. Some quantitative differences were found in the abundances of different lipid classes, the wood from U1×U2 having the lowest amounts of these pitch-forming compounds. The chemical composition and structure of lignins were characterized by Py-GC/MS and 2D-NMR that confirmed the predominance of syringyl over guaiacyl units and only showed traces of p-hydroxyphenyl units in all the woods, with the highest S/G ratio for G1×UGL. The 2D-NMR spectra gave additional information about the inter-unit linkages in the lignin polymer. All the lignins showed a predominance of beta -O-4 ether linkages (75–79% of total side-chains), followed by beta –beta resinol-type linkages (9–11%) and lower amounts of beta -5 phenylcoumaran-type, beta -1 spirodienone-type linkages or beta-1 open substructures. The lignin from the hybrid G1 ×UGL presented also the highest proportion of beta-O-4 linkages, and therefore, it is foreseen that the wood from this hybrid will be more easily delignifiable than the other selected Brazilian eucalypt hybrids. In complement to these chemical analyses, the morphological characterization of fibers, vessels and fines revealed that hybrid eucalypt clone DG×U2 presented the most interesting properties for the manufacture of paper pulps and biofuels. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 2012 2012 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/51793 |
| url |
http://hdl.handle.net/10261/51793 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
#PLACEHOLDER_PARENT_METADATA_VALUE# KBBE-24436 http://dx.doi.org/10.1016/j.indcrop.2011.11.014 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
| instname_str |
Consejo Superior de Investigaciones Científicas (CSIC) |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
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1869407652532977664 |
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15,228081 |