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Insights into cork weathering regarding colour, chemical and cellular changes in view of outdoor applications

2024-04Artigo científico Acesso aberto
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dc.contributor.authorMiranda, Isabel
dc.contributor.authorLourenço, Ana
dc.contributor.authorSimões, Rita
dc.contributor.authorAthayde, João
dc.contributor.authorPereira, Helena
dc.date.accessioned2025-08-07T09:36:11Z
dc.date.available2025-08-07T09:36:11Z
dc.date.issued2024-04
dc.description.abstractA comprehensive analysis of outdoor weathering and soil burial of cork during 1-year experi- ments was carried out with measurements of CIELAB color parameters, cellular observa- tions by scanning electron microscopy, and surface chemical features analysed by ATR- FTIR and wet chemical analysis. Cork applied in outdoor conditions above and below ground retained its physical structure and integrity without signs of deterioration or fractur- ing. The cellular structure was maintained with some small changes at the one-cell layer at the surface, featuring cellular expansion and minute cell wall fractures. Surface color and chemistry showed distinct results for outdoor exposure and soil burial. The weathered cork surfaces acquired a lighter color while the soil buried cork surfaces became darker. With out- door weathering, the cork polar solubles increased (13.0% vs. 7.6% o.d. mass) while a sub- stantial decrease of lignin occurred (about 28% of the original lignin was removed) leading to a suberin-enriched cork surface. The chemical impact on lignin is therefore responsible for the surface change towards lighter colors. Soil-burial induced hydrolysis of ester bonds of suberin and xylan, and the lignin-enriched cork surface displayed a dark brown color. FTIR and wet chemical results were consistent. Overall cork showed a considerable struc- tural and physical stability that allows its application in outdoor conditions, namely for build- ing fac¸ades or other surfacing applications. Architects and designers should take into account the color dynamics of the cork surfaces.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMiranda I, Lourenço A, Simões R, Athayde J, Pereira H (2024) Insights into cork weathering regarding colour, chemical and cellular changes in view of outdoor applications. PLoS ONE 19(4): e0301384. https://doi.org/10.1371/journal. pone.0301384pt_PT
dc.identifier.doi10.1371/journal. pone.0301384pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/102694
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPLoS ONEpt_PT
dc.relationForest Research Centre
dc.relationA designar
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleInsights into cork weathering regarding colour, chemical and cellular changes in view of outdoor applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00239/2020
oaire.awardNumberPD/BD/128259/2016
oaire.awardNumberDL 57/2016/CP1382/CT0007
oaire.awardTitleForest Research Centre
oaire.awardTitleA designar
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00239%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/PD%2FBD%2F128259%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1382%2FCT0007/PT
oaire.citation.issue4pt_PT
oaire.citation.startPagee0301384pt_PT
oaire.citation.titlePLoS ONEpt_PT
oaire.citation.volume19pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
oaire.fundingStreamDL 57/2016
person.familyNameMiranda
person.familyNameLourenço
person.familyNameSimões
person.familyNameRamos Athayde
person.familyNameMargarida Nunes Pereira
person.givenNameIsabel
person.givenNameAna
person.givenNameRita Fabiana
person.givenNameJoão Pedro
person.givenNameHelena
person.identifierA-5901-2011
person.identifier.ciencia-id3D17-2EA5-B476
person.identifier.ciencia-id411B-FD38-7C96
person.identifier.ciencia-idF913-B7A9-164F
person.identifier.ciencia-id8413-B226-D167
person.identifier.ciencia-id4317-A0D2-2E2A
person.identifier.orcid0000-0003-0280-5219
person.identifier.orcid0000-0003-4896-344X
person.identifier.orcid0000-0001-6539-9452
person.identifier.orcid0009-0005-1563-5134
person.identifier.orcid0000-0002-5393-4443
person.identifier.scopus-author-id36877743000
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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