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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Ibarra, David | - |
dc.contributor.author | Chávez, M.I. | - |
dc.contributor.author | Rencoret, Jorge | - |
dc.contributor.author | Río Andrade, José Carlos del | - |
dc.contributor.author | Gutiérrez Suárez, Ana | - |
dc.contributor.author | Camarero, Susana | - |
dc.contributor.author | Martínez, María Jesús | - |
dc.contributor.author | Jiménez-Barbero, Jesús | - |
dc.contributor.author | Martínez, Ángel T. | - |
dc.date.accessioned | 2013-11-12T14:19:46Z | - |
dc.date.available | 2013-11-12T14:19:46Z | - |
dc.date.issued | 2006-08-27 | - |
dc.identifier.citation | In: Proceedings of the 9th European Workshop on Lignocellulosics and Pulp, Vienna, Austria, August 27-30, Advances in Chemistry and Processing of Lignocellulosics, pp. 286-289. | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/86420 | - |
dc.description.abstract | Chemical modification of residual lignin isolated from eucalypt pulp after the different stages of a TCF sequence including a laccase-mediator stage was investigated by FTIR, Py-GC/MS and 2D-NMR (using HSQC, HSQC-TOCSY and HMBC). The enzymatic treatment resulted in strong oxidative modification of a lignin fraction, which could be removed under alkaline conditions enabling a final increase of brightness by hydrogen peroxide. In addition to changes in the ratios between syringyl and guaiacyl units and between β-O-4, syringaresinol and phenylcoumaran substructures, formation of acetosyringone and muconate terminal units were observed during the TCF sequence due to oxidative breakdown of lignin side-chains and aromatic nuclei respectively. | es_ES |
dc.description.sponsorship | The study was funded by Spanish projects BIO2005-03569, AGL2005-01748 and CTQ2005-08925-C02-02, EU project QLK3-99-590, and ENCE-CSIC contracts. Beldem (Andenne, Belgium) is acknowledged for the laccase sample. | es_ES |
dc.language.iso | eng | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Eucalyptus | es_ES |
dc.subject | Pulp | es_ES |
dc.subject | Lignin | es_ES |
dc.subject | TCF bleaching | es_ES |
dc.subject | Laccases | es_ES |
dc.title | Chemical characterization of eucalypt pulp lignin during totally chlorine free bleaching including a laccase-mediator stage: 2D-NMR, FTIR and Py-GC/MS of enzymatically-isolated residual lignins. | es_ES |
dc.type | comunicación de congreso | es_ES |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_5794 | es_ES |
item.openairetype | comunicación de congreso | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
Aparece en las colecciones: | (IRNAS) Comunicaciones congresos |
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Ibarra-Extended-EWLP2006.pdf | 360,98 kB | Adobe PDF | Visualizar/Abrir |
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