Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10198/16213 |
Resumo: | The antioxidant activity and chemical composition of essential oils and methanolic extracts of twenty Spanish Thymus mastichina L. populations were studied. Both essential oils and methanolic extracts possessed antioxidant properties. However, the total phenol contents of the methanolic extracts varied between 2.90 and 9.15mg GAE/g extract and the EC 25 values of DPPH free radical scavenging activity between 0.90 and 3.45mg/mL for the methanolic extracts and 78-241mg/mL for essential oils, these showing low antioxidant potential. Actually, in essential oils the main compound determined was the 1,8-cineole (56.8-69.6%), whereas thymol, γ-terpinene, terpinolene and geraniol (species with considerable DPPH scavenging activity) were observed in low amounts. Concerning methanolic extracts, rosmarinic acid was the most abundant polyphenol (1.70-9.85mg/g), followed by methoxysalicylic acid, apigenin, kaempferol and luteolin. |
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Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical compositionAntioxidant activityChemical compositionEssential oilsMethanolic extractsThymus mastichina L.The antioxidant activity and chemical composition of essential oils and methanolic extracts of twenty Spanish Thymus mastichina L. populations were studied. Both essential oils and methanolic extracts possessed antioxidant properties. However, the total phenol contents of the methanolic extracts varied between 2.90 and 9.15mg GAE/g extract and the EC 25 values of DPPH free radical scavenging activity between 0.90 and 3.45mg/mL for the methanolic extracts and 78-241mg/mL for essential oils, these showing low antioxidant potential. Actually, in essential oils the main compound determined was the 1,8-cineole (56.8-69.6%), whereas thymol, γ-terpinene, terpinolene and geraniol (species with considerable DPPH scavenging activity) were observed in low amounts. Concerning methanolic extracts, rosmarinic acid was the most abundant polyphenol (1.70-9.85mg/g), followed by methoxysalicylic acid, apigenin, kaempferol and luteolin.The authors are grateful to the POCTEPePrograma Cooperação Transfronteiriça España-Portugal 2007 e 2013 for financial support through the project “Mejora de la competitividad del sector agrario de Castilla y León y Norte de Portugal a través de la innovación y el desarrollo de productos diferenciados de alto valor”.Biblioteca Digital do IPBDelgado, TeresaMarinero, PilarAsensio-S.-Manzanera, M. CarmenAsensio, CarmenHerrero, BaudilioPereira, J.A.Ramalhosa, Elsa2018-01-19T10:00:00Z20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/16213engDelgado, Teresa; Marinero, Pilar; Asensio-S.-Manzanera, M. Carmen; Asensio, Carmen; Herrero, Baudilio; Pereira, José Alberto; Ramalhosa, Elsa (2014). Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition. LWT - Food Science and Technology. ISSN 0023-6438. 57, p. 412-4180023-643810.1016/j.lwt.2013.12.041info: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:RCAAP2023-11-21T10:37:18Zoai:bibliotecadigital.ipb.pt:10198/16213Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:05:27.240786Repositório 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 |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
title |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
spellingShingle |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition Delgado, Teresa Antioxidant activity Chemical composition Essential oils Methanolic extracts Thymus mastichina L. |
title_short |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
title_full |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
title_fullStr |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
title_full_unstemmed |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
title_sort |
Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition |
author |
Delgado, Teresa |
author_facet |
Delgado, Teresa Marinero, Pilar Asensio-S.-Manzanera, M. Carmen Asensio, Carmen Herrero, Baudilio Pereira, J.A. Ramalhosa, Elsa |
author_role |
author |
author2 |
Marinero, Pilar Asensio-S.-Manzanera, M. Carmen Asensio, Carmen Herrero, Baudilio Pereira, J.A. Ramalhosa, Elsa |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Delgado, Teresa Marinero, Pilar Asensio-S.-Manzanera, M. Carmen Asensio, Carmen Herrero, Baudilio Pereira, J.A. Ramalhosa, Elsa |
dc.subject.por.fl_str_mv |
Antioxidant activity Chemical composition Essential oils Methanolic extracts Thymus mastichina L. |
topic |
Antioxidant activity Chemical composition Essential oils Methanolic extracts Thymus mastichina L. |
description |
The antioxidant activity and chemical composition of essential oils and methanolic extracts of twenty Spanish Thymus mastichina L. populations were studied. Both essential oils and methanolic extracts possessed antioxidant properties. However, the total phenol contents of the methanolic extracts varied between 2.90 and 9.15mg GAE/g extract and the EC 25 values of DPPH free radical scavenging activity between 0.90 and 3.45mg/mL for the methanolic extracts and 78-241mg/mL for essential oils, these showing low antioxidant potential. Actually, in essential oils the main compound determined was the 1,8-cineole (56.8-69.6%), whereas thymol, γ-terpinene, terpinolene and geraniol (species with considerable DPPH scavenging activity) were observed in low amounts. Concerning methanolic extracts, rosmarinic acid was the most abundant polyphenol (1.70-9.85mg/g), followed by methoxysalicylic acid, apigenin, kaempferol and luteolin. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2014-01-01T00:00:00Z 2018-01-19T10:00:00Z |
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/10198/16213 |
url |
http://hdl.handle.net/10198/16213 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Delgado, Teresa; Marinero, Pilar; Asensio-S.-Manzanera, M. Carmen; Asensio, Carmen; Herrero, Baudilio; Pereira, José Alberto; Ramalhosa, Elsa (2014). Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition. LWT - Food Science and Technology. ISSN 0023-6438. 57, p. 412-418 0023-6438 10.1016/j.lwt.2013.12.041 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1817554412370919424 |