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Isolation and characterization of a lignin-like polymer of the cork of Quercus suber L

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dc.contributor.authorNeto, C. Pascoal
dc.contributor.authorCordeiro, N.
dc.contributor.authorSeca, A.
dc.contributor.authorDomingues, F.
dc.contributor.authorGandini, A.
dc.contributor.authorRobert, D.
dc.date.accessioned2021-05-06T10:34:06Z
dc.date.available2021-05-06T10:34:06Z
dc.date.issued1996
dc.description.abstractA lignin-like polymer was successfully extracted from the cork of Quercus suber L. using an organosolv-based technique. This material was characterized by elemental analysis, functional group analysis, nitrobenzene oxidation followed by HPLC analysis of the oxidation products, FTIR and liquid I3C NMR. The evidence thus obtained indicated that the extracted material was composed mainly of a lignin-like polymer covalently bound to residual aliphatic structures which are not present in common lignins and which have been assigned to suberin. The latter is likely to be attached to the oxygenated side chains of the phenolic polymer but bonding through the aromatic ring can also be envisaged. No residual carbohydrates were detected. The phenolic polymer, composed mainly of guaiacyl-type units and small amounts of syringyl-type units, had a low methoxy content and a high degree of condensation. This polymer showed the presence of a fraction containing CeCn units with n < 3 or even n < 2.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNeto, C. P., Cordeiro, N., Seca, A., Domingues, F., Gandini, A., & Robert, D. (1996). Isolation and Characterization of a Lignin-Like Polymer of the Cork of Quercus suber L.pt_PT
dc.identifier.doi10.1515/hfsg.1996.50.6.563pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3374
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherDe Gruyterpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCorkpt_PT
dc.subjectQuercus suber L.pt_PT
dc.subjectLignin-like polymerpt_PT
dc.subjectSuberinpt_PT
dc.subjectFTIRpt_PT
dc.subject13C NMRpt_PT
dc.subjectNitrobenzene oxidationpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleIsolation and characterization of a lignin-like polymer of the cork of Quercus suber Lpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage568pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage563pt_PT
oaire.citation.titleHolzforschungpt_PT
oaire.citation.volume50pt_PT
person.familyNamecordeiro
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication.latestForDiscovery3d02b657-c48c-4f56-813a-1284b81960f3

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