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Bark-based biorefineries: anatomical and chemical characterization of the bark of endemic Quercus vulcanica of Turkey

2024Journal article Open access
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dc.contributor.authorŞen, Ali Umut
dc.contributor.authorSimões, Rita
dc.contributor.authorYücedağ, Cengiz
dc.contributor.authorQuilhó, Teresa
dc.contributor.authorSousa, Vicelina
dc.contributor.authorMiranda, Isabel M.
dc.contributor.authorFernandes, Ângela
dc.contributor.authorPereira, Helena
dc.date.accessioned2024-02-27T10:57:38Z
dc.date.available2024-02-27T10:57:38Z
dc.date.issued2024
dc.description.abstractThe detailed anatomical and chemical features of the bark from endemic Quercus vulcanica in Turkey are reported here for the first time and discussed in the perspective of integration into a bark-based biorefinery system. The bark of Q. vulcanica trees was collected and studied through observations using light and scanning electron microscopy, wet-chemical analysis, inorganic elemental and FTIR analyses, GC-MS determinations of lipophilic extractives and suberin monomers, as well as TBARS antioxidant activity of hydroethanolic extracts. The bark of Q. vulcanica comprises phloem and a rhytidome with thin periderms and a few cork layers. The ash content is high (16.4%), primarily consisting of calcium oxalate crystals. Extractives were present in a high amount (23.1%) of which 88% corresponded to hydrophilic extractives (10.3% ethanol, and 10.1% water solubles). The suberin content is low (3.7%), which aligns with the small proportion of cork in the bark rhytidome. The composition of suberin is characterized by similar proportions of alpha, omega-alkanoic diacids and omega-hydroxyalkanoic acids, with 18-hydroxy-9-octadecenoic acid (26% of monomers) and octadec-9-enedioic acid (20.6%) as the main monomers. The lignin content is 21.9%, and the monomeric composition of polysaccharides includes glucose, xylose, arabinose, galactose, rhamnose, and acetyl groups. The lipophilic extractives are mainly composed of terpenoids (72.2% of all compounds), with friedelin and friedelanol as the main compounds. Hydroethanolic extracts, obtained under mild conditions with a yield of 10.2%, exhibited antioxidant activity (TBARS assay, EC50 value of 55 mu g/mL). The overall chemical and structural properties of Q. vulcanica bark indicate promising potential for biorefineries.pt_PT
dc.description.sponsorshipThis work has been supported by FCT—Fundação para a Ciência e Tecnologia within the R&D Unit Forest Research Centre, CEF (UIDB/00239/2020) and also from the FCT/MCTES (PIDDAC) national funds to CIMO (UIDB/00690/2020 and UIDP/ 00690/2020) and SusTEC (LA/P/0007/2021). U. Sen and V. Sousa acknowledge support from FCT through research contracts (DL 57/2016), R. Simões by a Ph.D. scholarship (PD/BD/128259/2016), and for the national funding by FCT and P.I. in the form of the institutional scientific employment program for the contract of Â. Fernandes.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationŞen, Ali Umut; Simões, Rita; Yücedağ, Cengiz; Quilhó, Teresa; Sousa, Vicelina; Miranda, Isabel M.; Fernandes, Ângela; Pereira, Helena (2024). Bark-based biorefineries: anatomical and chemical characterization of the bark of endemic Quercus vulcanica of Turkey. Wood Science and Technology. ISSN 0043-7719. 58:1, p. 333–355pt_PT
dc.identifier.doi10.1007/s00226-023-01518-xpt_PT
dc.identifier.eissn1432-5225
dc.identifier.issn0043-7719
dc.identifier.urihttp://hdl.handle.net/10198/29591
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationLA/P/0007/2021pt_PT
dc.relationForest Research Centre
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationA designar
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCalcium-oxalate crystalspt_PT
dc.subjectPopulus-tremulapt_PT
dc.subjectUlmus-glabrapt_PT
dc.subjectSuberin compositionpt_PT
dc.subjectReproductionpt_PT
dc.subjectCorkpt_PT
dc.subjectCerrispt_PT
dc.subjectRoburpt_PT
dc.subjectWoodpt_PT
dc.subjectComponentspt_PT
dc.subjectPhloempt_PT
dc.titleBark-based biorefineries: anatomical and chemical characterization of the bark of endemic Quercus vulcanica of Turkeypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleForest Research Centre
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleA designar
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00239%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/PD%2FBD%2F128259%2F2016/PT
oaire.citation.endPage355pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage333pt_PT
oaire.citation.titleWood Science and Technologypt_PT
oaire.citation.volume58pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
person.familyNameFernandes
person.givenNameÂngela
person.identifier.ciencia-id2015-0434-AE7C
person.identifier.orcid0000-0002-0157-9873
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery6233e657-3885-40a3-885e-0d51cf4dbaad
relation.isProjectOfPublication670ef3ba-f2c2-4857-97f0-1678ff4187de
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