Valorization of cork using subcritical water
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/117342 |
Resumo: | UIDB/QUI/50006/2020 PD/BD/142863/2018 IF/01146/2015 |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Valorization of cork using subcritical waterAntioxidant activityCarbohydratesCorkPhenolicsQuercus suber LSubcritical waterAnalytical ChemistryChemistry (miscellaneous)Molecular MedicinePharmaceutical ScienceDrug DiscoveryPhysical and Theoretical ChemistryOrganic ChemistryUIDB/QUI/50006/2020 PD/BD/142863/2018 IF/01146/2015Granulated cork was submitted to subcritical water extraction/hydrolysis in a semi-continuous reactor at temperatures in the range of 120–200 ◦C and with a constant pressure of 100 bar. The influence of temperature on the composition of the cork extracts obtained was assessed—namely, their content of carbohydrates and phenolics. The extraction yield increased with the temperature, and this was associated with the decrease in the dielectric constant of water and the increase in its ionic product. Extracts composed of up to 36% phenolics were obtained at temperatures of up to 120 ◦C, with an antioxidant activity only two times lower than that of pure gallic acid, but in low amounts. Assays at higher temperatures generated extracts richer in carbohydrates and with a phenolics content of ca. 20 wt.% in comparatively far higher amounts. Neither the amount of suberin nor its structure were affected by the subcritical water treatment.DQ - Departamento de QuímicaLAQV@REQUIMTERUNCunha, MónicaLourenço, AnaBarreiros, SusanaPaiva, AlexandreSimões, Pedro2021-05-07T23:07:36Z2020-10-142020-10-14T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/117342eng1420-3049PURE: 29618729https://doi.org/10.3390/molecules25204695info: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:RCAAP2024-03-11T05:00:30Zoai:run.unl.pt:10362/117342Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:43:36.275647Repositório 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 |
Valorization of cork using subcritical water |
title |
Valorization of cork using subcritical water |
spellingShingle |
Valorization of cork using subcritical water Cunha, Mónica Antioxidant activity Carbohydrates Cork Phenolics Quercus suber L Subcritical water Analytical Chemistry Chemistry (miscellaneous) Molecular Medicine Pharmaceutical Science Drug Discovery Physical and Theoretical Chemistry Organic Chemistry |
title_short |
Valorization of cork using subcritical water |
title_full |
Valorization of cork using subcritical water |
title_fullStr |
Valorization of cork using subcritical water |
title_full_unstemmed |
Valorization of cork using subcritical water |
title_sort |
Valorization of cork using subcritical water |
author |
Cunha, Mónica |
author_facet |
Cunha, Mónica Lourenço, Ana Barreiros, Susana Paiva, Alexandre Simões, Pedro |
author_role |
author |
author2 |
Lourenço, Ana Barreiros, Susana Paiva, Alexandre Simões, Pedro |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
DQ - Departamento de Química LAQV@REQUIMTE RUN |
dc.contributor.author.fl_str_mv |
Cunha, Mónica Lourenço, Ana Barreiros, Susana Paiva, Alexandre Simões, Pedro |
dc.subject.por.fl_str_mv |
Antioxidant activity Carbohydrates Cork Phenolics Quercus suber L Subcritical water Analytical Chemistry Chemistry (miscellaneous) Molecular Medicine Pharmaceutical Science Drug Discovery Physical and Theoretical Chemistry Organic Chemistry |
topic |
Antioxidant activity Carbohydrates Cork Phenolics Quercus suber L Subcritical water Analytical Chemistry Chemistry (miscellaneous) Molecular Medicine Pharmaceutical Science Drug Discovery Physical and Theoretical Chemistry Organic Chemistry |
description |
UIDB/QUI/50006/2020 PD/BD/142863/2018 IF/01146/2015 |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-14 2020-10-14T00:00:00Z 2021-05-07T23:07:36Z |
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/10362/117342 |
url |
http://hdl.handle.net/10362/117342 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1420-3049 PURE: 29618729 https://doi.org/10.3390/molecules25204695 |
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.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 |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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1799138045366108160 |