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Structural characterization of stalk lignin from banana plant

2009Journal article Open access
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dc.contributor.authorOliveira, L.
dc.contributor.authorEvtuguin, D.
dc.contributor.authorCordeiro, N.
dc.contributor.authorSilvestre, A.J.D.
dc.date.accessioned2021-05-04T13:41:57Z
dc.date.available2021-05-04T13:41:57Z
dc.date.issued2009
dc.description.abstractDioxane lignins from two fractions of banana plant ‘Dwarf Cavendish’ stalk (floral stalk (DLFS) and rachis (DLR)) were structurally characterized by a set of spectroscopic (Ultravio let (UV), FTIR, solid- and liquid-state NMR) and chemical degradation (permanganate (PO) and nitrobenzene oxidation (NO)) techniques. Despite both lignins are of HGS-type, strong structural differences were observed between them. Thus, DLFS showed almost twice the abundance of H and G units and almost half of the abundance of S units when compared to DLR. DLR possessed significantly higher amount of -O-4 structures (0.32/C6 against 0.12/C6) and the molecular weight (5400 Da against 3750 Da) than those of DLFS. About 72% of the con densed structures in DLFS are of -5 and 5–5 types, whereas 4-O-5 -diaryl ether structures were the most abundant condensed structures in DLR. Most of H units in both lignins are terminal phenolic coumarates linked to lignin substructures by ester bonds. Both lignins are structurally associated with suberin-like components in cell wall tissues. Structural fea tures of stalk lignin were discussed in terms of possible restrictions for the kraft pulping of integral stem material.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationOliveira, L., Evtuguin, D., Cordeiro, N., & Silvestre, A. J. D. (2009). Structural characterization of stalk lignin from banana plant. Industrial crops and products, 29(1), 86-95.pt_PT
dc.identifier.doi10.1016/j.indcrop.2008.04.012pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3358
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEXTRACÇÃO E CARACTERIZAÇÃO ESTRUTURAL DOS CONSTITUINTES DA BANANEIRA DWARF CAVENDISH
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLigninpt_PT
dc.subjectMusa acuminata Colla var. Cavendishpt_PT
dc.subjectRachispt_PT
dc.subjectFloral stalkpt_PT
dc.subjectBanana plantpt_PT
dc.subject13C NMRpt_PT
dc.subject1H NMRpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleStructural characterization of stalk lignin from banana plantpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEXTRACÇÃO E CARACTERIZAÇÃO ESTRUTURAL DOS CONSTITUINTES DA BANANEIRA DWARF CAVENDISH
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F4749%2F2001/PT
oaire.citation.endPage95pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage86pt_PT
oaire.citation.titleIndustrial Crops and Productspt_PT
oaire.citation.volume29pt_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
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication.latestForDiscovery3d02b657-c48c-4f56-813a-1284b81960f3
relation.isProjectOfPublication28e31d5a-a57e-41f7-bfdd-17e03908606b
relation.isProjectOfPublication.latestForDiscovery28e31d5a-a57e-41f7-bfdd-17e03908606b

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