The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective

Detalhes bibliográficos
Autor(a) principal: Sen, Ali
Data de Publicação: 2011
Outros Autores: Quilhó, Teresa, Pereira, Helena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/4267
Resumo: Available at ScienceDirect
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spelling The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspectiveQuercus cerriscorkcellular structurebarkQuercus suberAvailable at ScienceDirectCork in the outer bark of trees is among the valuable raw materials of biological origin due to properties that result mainly from its cellular structure. Large scale commercial utilization of cork has been only achieved with cork from Quercus suber. Another oak species, Quercus cerris, also contains substantial, albeit not continuous, regions of cork that are clearly visible to the naked eye but are so far considered as a waste material. Bark samples of Q. cerris var. cerris trees were collected from the Andırın province, Turkey. Cork portions were separated and their cellular structure was investigated with optical and electron scanning microscopy observations. The results were compared with Q. suber cork. Q. cerris cork has the typical features of cork tissues with a regular and radially aligned structure of suberized cells without intercellular voids, showing a ring structure and a distinction of earlycork and latecork cells. Solid volume fraction was estimated at 25% (22% in earlycork, 36% in latecork). In Q. cerris cork cells are smaller, cell wall thickness and solid volume fraction are higher, and the tissue is less homogeneous with a higher content of lignified inclusions than in Q. suber cork. These factors will negatively influence quality in regard to density and mechanical properties associated to elasticity. However, this does not impair its use for production of granulates and agglomerates, e.g. for insulation and energy absorption. Separation of the cork fraction from the bark is a step required before further processing and use.ElsevierRepositório da Universidade de LisboaSen, AliQuilhó, TeresaPereira, Helena2012-04-24T10:59:07Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/4267eng"Industrial Crops and Products". ISSN 0926-6690. 34 (2011) 929-9360926-6690info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:35:16Zoai:www.repository.utl.pt:10400.5/4267Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:51:57.903796Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
title The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
spellingShingle The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
Sen, Ali
Quercus cerris
cork
cellular structure
bark
Quercus suber
title_short The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
title_full The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
title_fullStr The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
title_full_unstemmed The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
title_sort The cellular structure of cork from Quercus cerris var. cerris bark in a materials' perspective
author Sen, Ali
author_facet Sen, Ali
Quilhó, Teresa
Pereira, Helena
author_role author
author2 Quilhó, Teresa
Pereira, Helena
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Sen, Ali
Quilhó, Teresa
Pereira, Helena
dc.subject.por.fl_str_mv Quercus cerris
cork
cellular structure
bark
Quercus suber
topic Quercus cerris
cork
cellular structure
bark
Quercus suber
description Available at ScienceDirect
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
2012-04-24T10:59:07Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/4267
url http://hdl.handle.net/10400.5/4267
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Industrial Crops and Products". ISSN 0926-6690. 34 (2011) 929-936
0926-6690
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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