Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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/10198/6243 |
Resumo: | Infusions (herbal teas) and decoctions are frequently used to administer oral doses of herbs. Although some herbs are used as single ingredients, they are often prepared as mixtures, as reported by numerous ethnobotanical surveys. The present work was carried out to identify the different types of interaction (synergistic, additive and antagonistic effects) which may be found in the antioxidant activity of preparations from mixtures of the popular herbs Aloysia citrodora (lemon verbena), Foeniculum vulgare (fennel) and Mentha spicata (spearmint). Herbs were prepared using traditional methods, and the effects after different periods of storage, up to 120 days, were also evaluated. Antioxidant activity was evaluated using DPPH radical scavenging activity, reducing power, and inhibition of lipid peroxidation by the β-carotene-linoleate system and the TBARS assay. Known antioxidant compounds such as total phenolics, flavonoids, ascorbic acid and reducing sugars were also determined. Spearmint was found to be present in the herb mixtures with the greatest antioxidant activity and these also had the highest flavonoid content. The most potent antioxidant activity was found in combinations of different herbs, suggesting synergistic effects. |
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Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potentialHerbal mixturesInfusions/DecoctionsSynergistic effectsAntioxidant activityInfusions (herbal teas) and decoctions are frequently used to administer oral doses of herbs. Although some herbs are used as single ingredients, they are often prepared as mixtures, as reported by numerous ethnobotanical surveys. The present work was carried out to identify the different types of interaction (synergistic, additive and antagonistic effects) which may be found in the antioxidant activity of preparations from mixtures of the popular herbs Aloysia citrodora (lemon verbena), Foeniculum vulgare (fennel) and Mentha spicata (spearmint). Herbs were prepared using traditional methods, and the effects after different periods of storage, up to 120 days, were also evaluated. Antioxidant activity was evaluated using DPPH radical scavenging activity, reducing power, and inhibition of lipid peroxidation by the β-carotene-linoleate system and the TBARS assay. Known antioxidant compounds such as total phenolics, flavonoids, ascorbic acid and reducing sugars were also determined. Spearmint was found to be present in the herb mixtures with the greatest antioxidant activity and these also had the highest flavonoid content. The most potent antioxidant activity was found in combinations of different herbs, suggesting synergistic effects.WileyBiblioteca Digital do IPBGuimarães, RafaelaBarros, LillianCarvalho, Ana MariaFerreira, Isabel C.F.R.2011-10-25T13:49:59Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10198/6243engGuimarães, Rafaela; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2011). Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential. Phytotherapy Research. ISSN 0951-418X. 25:8, p. 1209-12140951-418X10.1002/ptr.3366info: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:RCAAP2023-01-16T12:09:07ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
title |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
spellingShingle |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential Guimarães, Rafaela Herbal mixtures Infusions/Decoctions Synergistic effects Antioxidant activity |
title_short |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
title_full |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
title_fullStr |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
title_full_unstemmed |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
title_sort |
Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential |
author |
Guimarães, Rafaela |
author_facet |
Guimarães, Rafaela Barros, Lillian Carvalho, Ana Maria Ferreira, Isabel C.F.R. |
author_role |
author |
author2 |
Barros, Lillian Carvalho, Ana Maria Ferreira, Isabel C.F.R. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Guimarães, Rafaela Barros, Lillian Carvalho, Ana Maria Ferreira, Isabel C.F.R. |
dc.subject.por.fl_str_mv |
Herbal mixtures Infusions/Decoctions Synergistic effects Antioxidant activity |
topic |
Herbal mixtures Infusions/Decoctions Synergistic effects Antioxidant activity |
description |
Infusions (herbal teas) and decoctions are frequently used to administer oral doses of herbs. Although some herbs are used as single ingredients, they are often prepared as mixtures, as reported by numerous ethnobotanical surveys. The present work was carried out to identify the different types of interaction (synergistic, additive and antagonistic effects) which may be found in the antioxidant activity of preparations from mixtures of the popular herbs Aloysia citrodora (lemon verbena), Foeniculum vulgare (fennel) and Mentha spicata (spearmint). Herbs were prepared using traditional methods, and the effects after different periods of storage, up to 120 days, were also evaluated. Antioxidant activity was evaluated using DPPH radical scavenging activity, reducing power, and inhibition of lipid peroxidation by the β-carotene-linoleate system and the TBARS assay. Known antioxidant compounds such as total phenolics, flavonoids, ascorbic acid and reducing sugars were also determined. Spearmint was found to be present in the herb mixtures with the greatest antioxidant activity and these also had the highest flavonoid content. The most potent antioxidant activity was found in combinations of different herbs, suggesting synergistic effects. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-10-25T13:49:59Z 2011 2011-01-01T00:00:00Z |
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/10198/6243 |
url |
http://hdl.handle.net/10198/6243 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Guimarães, Rafaela; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2011). Infusions and decoctions of mixed herbs used in folk medicine: synergism in antioxidant potential. Phytotherapy Research. ISSN 0951-418X. 25:8, p. 1209-1214 0951-418X 10.1002/ptr.3366 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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) |
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repository.mail.fl_str_mv |
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1777301836672270336 |