Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood

7 páginas, 3 figuras, 3 tablas.

Detalles Bibliográficos
Autores: Rencoret, Jorge, Marques, Gisela, Gutiérrez Suárez, Ana, Nieto, Lidia, Jiménez-Barbero, Jesús, Martínez, Ángel T., Río Andrade, José Carlos del
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/34672
Acceso en línea:http://hdl.handle.net/10261/34672
Access Level:acceso abierto
Palabra clave:Paulownia fortunei
Milled-wood lignin (MWL)
Pyrolysis-GC/MS
2D NMR
HSQC
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spelling Isolation and structural characterization of the milled wood lignin from Paulownia fortunei woodRencoret, JorgeMarques, GiselaGutiérrez Suárez, AnaNieto, LidiaJiménez-Barbero, JesúsMartínez, Ángel T.Río Andrade, José Carlos delPaulownia fortuneiMilled-wood lignin (MWL)Pyrolysis-GC/MS2D NMRHSQC7 páginas, 3 figuras, 3 tablas.The chemical structure of the milled-wood lignin isolated from Paulownia fortunei wood was investigated. The lignins were characterized by analytical pyrolysis and two-dimensional NMR that indicated a predominance of guaiacyl (G) over syringyl (S) units, and only showed small amounts of p-hydroxyphenyl (H) units, with a H:G:S molar ratio of 1:59:40. The heteronuclear single quantum correlation (HSQC) NMR spectrum gave additional information about the relative abundances of the different inter-unit linkages present in the lignin structure. Paulownia lignin showed a predominance of β-O-4' aryl ether linkages (62% of total side-chains), followed by β-β' resinol-type (12%) and β-5' phenylcoumaran-type structures (11%) and with lower amounts of other condensed structures such as spirodienone (3%) and dibenzodioxocin (2%) structures. The high lignin content (ca. 23% Klason lignin), together with the low S/G ratio and the abundance of condensed (carbon-carbon linked) structures (together with the low abundance of the most labile ether-linked structures) could contribute to the low reactivity of paulownia lignin during alkaline pulping.This study has been funded by the Spanish project AGL2005- 01748 and the BIORENEW EU-Project (NMP2-CT-2006-026456). J.R. thanks the CSIC for an I3P fellowship and G.M. thanks the Spanish MEC for a FPI fellowship.Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas (España)Ministerio de Educación y Ciencia (España)201120112009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/34672reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.indcrop.2009.03.004info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/346722026-05-22T06:33:51Z
dc.title.none.fl_str_mv Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
title Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
spellingShingle Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
Rencoret, Jorge
Paulownia fortunei
Milled-wood lignin (MWL)
Pyrolysis-GC/MS
2D NMR
HSQC
title_short Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
title_full Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
title_fullStr Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
title_full_unstemmed Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
title_sort Isolation and structural characterization of the milled wood lignin from Paulownia fortunei wood
dc.creator.none.fl_str_mv Rencoret, Jorge
Marques, Gisela
Gutiérrez Suárez, Ana
Nieto, Lidia
Jiménez-Barbero, Jesús
Martínez, Ángel T.
Río Andrade, José Carlos del
author Rencoret, Jorge
author_facet Rencoret, Jorge
Marques, Gisela
Gutiérrez Suárez, Ana
Nieto, Lidia
Jiménez-Barbero, Jesús
Martínez, Ángel T.
Río Andrade, José Carlos del
author_role author
author2 Marques, Gisela
Gutiérrez Suárez, Ana
Nieto, Lidia
Jiménez-Barbero, Jesús
Martínez, Ángel T.
Río Andrade, José Carlos del
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
Ministerio de Educación y Ciencia (España)
dc.subject.none.fl_str_mv Paulownia fortunei
Milled-wood lignin (MWL)
Pyrolysis-GC/MS
2D NMR
HSQC
topic Paulownia fortunei
Milled-wood lignin (MWL)
Pyrolysis-GC/MS
2D NMR
HSQC
description 7 páginas, 3 figuras, 3 tablas.
publishDate 2009
dc.date.none.fl_str_mv 2009
2011
2011
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/10261/34672
url http://hdl.handle.net/10261/34672
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.indcrop.2009.03.004
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
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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