Antioxidant activity of twenty wild Spanish Thymus mastichina L. populations and its relation with their chemical composition

Detalhes bibliográficos
Autor(a) principal: Delgado, Teresa
Data de Publicação: 2014
Outros Autores: Marinero, Pilar, Asensio-S.-Manzanera, M. Carmen, Asensio, Carmen, Herrero, Baudilio, Pereira, J.A., Ramalhosa, Elsa
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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spelling 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
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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