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Cuticular Waxes and Cutin in Terminalia catappa Leaves from the Equatorial São Tomé and Príncipe Islands

2023-09Journal article Open access
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dc.contributor.authorPereira, Helena
dc.contributor.authorSimões, Rita
dc.contributor.authorMiranda, Isabel
dc.date.accessioned2024-07-10T15:46:13Z
dc.date.available2024-07-10T15:46:13Z
dc.date.issued2023-09
dc.description.abstractThis study presents for the first time an analysis of the content and chemical composition of the cuticular waxes and cutin in the leaves of the widespread and important tropical species Terminalia catappa. The leaves were collected in the equatorial Atlantic islands of São Tomé and Príncipe, in the Gulf of Guinea. The epicuticular and intracuticular waxes were determined via dichloromethane extraction and their chemical composition via GC-MS analysis, and the content and monomeric composition of cutin were determined after depolymerization via methanolysis. The leaves contained an epidermal cuticular coverage of 52.8 g cm􀀀2 of the cuticular waxes (1.4% of mass) and 63.3 g cm􀀀2 (1.5% of mass) of cutin. Cuticular waxes include mainly n-alkanols and fatty acids, with a substantial proportion of terpenes in the more easily solubilized fraction, and sterols in the more embedded waxes. Cutin is mostly constituted by C16 fatty acids and dihydroxyacids, also including aromatic monomers, suggesting a largely linear macromolecular arrangement. The high proportion of triacontanol, a-amyrin, b-amyrin, germanicol, and lupeol in the easily solubilized cuticular fraction may explain the bioactive properties attributed to the T. catappa leaves via the popular medicine, which allows us to consider them as a potential source for the extraction of these compounds.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPereira, H.; Simões, R.; Miranda, I. CuticularWaxes and Cutin in Terminalia catappa Leaves from the Equatorial São Tomé and Príncipe Islands. Molecules 2023, 28, 6365pt_PT
dc.identifier.doi10.3390/molecules28176365pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/31265
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationForest Research Centre
dc.relation.publisherversionhttps://www.mdpi.com/journal/moleculespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectcuticlept_PT
dc.subjecttropical almondpt_PT
dc.subjectextractspt_PT
dc.subjecttriacontanolpt_PT
dc.subjecttriterpenespt_PT
dc.subjectpopular medicinept_PT
dc.subjecta-amyrinpt_PT
dc.subjectb-amyrinpt_PT
dc.subjectgermanicolpt_PT
dc.subjectlupeolpt_PT
dc.titleCuticular Waxes and Cutin in Terminalia catappa Leaves from the Equatorial São Tomé and Príncipe Islandspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleForest Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00239%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F128259%2F2016/PT
oaire.citation.issue17pt_PT
oaire.citation.startPageArticle number 6365pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume28pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMargarida Nunes Pereira
person.familyNameSimões
person.familyNameMiranda
person.givenNameHelena
person.givenNameRita Fabiana
person.givenNameIsabel
person.identifier.ciencia-id4317-A0D2-2E2A
person.identifier.ciencia-idF913-B7A9-164F
person.identifier.ciencia-id3D17-2EA5-B476
person.identifier.orcid0000-0002-5393-4443
person.identifier.orcid0000-0001-6539-9452
person.identifier.orcid0000-0003-0280-5219
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc99830c9-db3e-48da-ab3e-9449493f2c43
relation.isAuthorOfPublication0f6793c0-ca34-4705-aad0-88083be13ebb
relation.isAuthorOfPublication8f6413bb-dadf-4e8d-92e8-1fb4a45413e1
relation.isAuthorOfPublication.latestForDiscoveryc99830c9-db3e-48da-ab3e-9449493f2c43
relation.isProjectOfPublication56bd0ae9-f8da-4344-b9a2-f633d4f68b89
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