Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes

Detalhes bibliográficos
Autor(a) principal: Ferreira da Vinha, Ana
Data de Publicação: 2013
Outros Autores: Barreira, Sérgio, Castro, Ana, Machado, Marisa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10284/9757
Resumo: It has already been acknowledged among the medical community that plant based treatments represent an interesting contribution to modern therapeutics due to the presence in their composition of molecules with pharmacological and antioxidant action. The aim of this study was to evaluate the contents of total phenolics, flavonoids, and caffeine in six plants used traditionally by healers in Portugal and usually consumed as tea or infusion namely: Camellia sinensis, Melissa officinalis, Lippia citriodora, Cymbopogon citratus, Matricaria chamomilla, and Tilia cordata. Total phenolics ranged from 32.05 mg GAE/100g for aqueous extracts obtained from leaves of L. citriodora to 145.28 mg GAE/100g for aqueous extracts of C. sinensis. Significant variations in the flavonoid content were also found among analyzed plants and depending on the nature of the extract, with C. sinensis standing out again with the highest values (78.31 mg CE/100g) and the ethanolic extract obtained from the flowers of T. cordata exhibiting the lowest content (25.15 mg CE/100g). The concentration of caffeine was also very diverse and followed the sequence M. officinalis < T. cordata < C. citratus < M. chamomilla < L. citriodora < C. sinensis. The antioxidant activity of each plant was evaluated in vitro using a standard model system, the DPPH assay, and was found to vary according to C. citratus (90.9%) > C. sinensis (87.8%) > M. officinalis (50.7%) > M. chamomilla (45.3%) > T. cordata (32.2%) > L. citriodora (28.0%). The aqueous extracts presented lower antioxidant activity than the corresponding ethanolic ones.
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spelling Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposesMedicinal plantsCaffeinePhenolicsFlavonoidsAntioxidant activityIt has already been acknowledged among the medical community that plant based treatments represent an interesting contribution to modern therapeutics due to the presence in their composition of molecules with pharmacological and antioxidant action. The aim of this study was to evaluate the contents of total phenolics, flavonoids, and caffeine in six plants used traditionally by healers in Portugal and usually consumed as tea or infusion namely: Camellia sinensis, Melissa officinalis, Lippia citriodora, Cymbopogon citratus, Matricaria chamomilla, and Tilia cordata. Total phenolics ranged from 32.05 mg GAE/100g for aqueous extracts obtained from leaves of L. citriodora to 145.28 mg GAE/100g for aqueous extracts of C. sinensis. Significant variations in the flavonoid content were also found among analyzed plants and depending on the nature of the extract, with C. sinensis standing out again with the highest values (78.31 mg CE/100g) and the ethanolic extract obtained from the flowers of T. cordata exhibiting the lowest content (25.15 mg CE/100g). The concentration of caffeine was also very diverse and followed the sequence M. officinalis < T. cordata < C. citratus < M. chamomilla < L. citriodora < C. sinensis. The antioxidant activity of each plant was evaluated in vitro using a standard model system, the DPPH assay, and was found to vary according to C. citratus (90.9%) > C. sinensis (87.8%) > M. officinalis (50.7%) > M. chamomilla (45.3%) > T. cordata (32.2%) > L. citriodora (28.0%). The aqueous extracts presented lower antioxidant activity than the corresponding ethanolic ones.Canadian Center of Science and EducationRepositório Institucional da Universidade Fernando PessoaFerreira da Vinha, AnaBarreira, SérgioCastro, AnaMachado, Marisa2021-04-22T09:37:50Z2013-01-01T00:00:00Z2013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10284/9757engVinha, A.F., Barreira, S.V.P., Castro, A., Machado, M. 2013. Comparison Between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes. Journal of Agricultural Science, 5(11), 11-19. (doi: 10.5539/jas.v5n11p11)1916-975210.5539/jas.v5n11p111916-9760info: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:RCAAP2022-09-06T02:09:04Zoai:bdigital.ufp.pt:10284/9757Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:46:34.438730Repositório 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 Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
title Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
spellingShingle Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
Ferreira da Vinha, Ana
Medicinal plants
Caffeine
Phenolics
Flavonoids
Antioxidant activity
title_short Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
title_full Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
title_fullStr Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
title_full_unstemmed Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
title_sort Comparison between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes
author Ferreira da Vinha, Ana
author_facet Ferreira da Vinha, Ana
Barreira, Sérgio
Castro, Ana
Machado, Marisa
author_role author
author2 Barreira, Sérgio
Castro, Ana
Machado, Marisa
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Institucional da Universidade Fernando Pessoa
dc.contributor.author.fl_str_mv Ferreira da Vinha, Ana
Barreira, Sérgio
Castro, Ana
Machado, Marisa
dc.subject.por.fl_str_mv Medicinal plants
Caffeine
Phenolics
Flavonoids
Antioxidant activity
topic Medicinal plants
Caffeine
Phenolics
Flavonoids
Antioxidant activity
description It has already been acknowledged among the medical community that plant based treatments represent an interesting contribution to modern therapeutics due to the presence in their composition of molecules with pharmacological and antioxidant action. The aim of this study was to evaluate the contents of total phenolics, flavonoids, and caffeine in six plants used traditionally by healers in Portugal and usually consumed as tea or infusion namely: Camellia sinensis, Melissa officinalis, Lippia citriodora, Cymbopogon citratus, Matricaria chamomilla, and Tilia cordata. Total phenolics ranged from 32.05 mg GAE/100g for aqueous extracts obtained from leaves of L. citriodora to 145.28 mg GAE/100g for aqueous extracts of C. sinensis. Significant variations in the flavonoid content were also found among analyzed plants and depending on the nature of the extract, with C. sinensis standing out again with the highest values (78.31 mg CE/100g) and the ethanolic extract obtained from the flowers of T. cordata exhibiting the lowest content (25.15 mg CE/100g). The concentration of caffeine was also very diverse and followed the sequence M. officinalis < T. cordata < C. citratus < M. chamomilla < L. citriodora < C. sinensis. The antioxidant activity of each plant was evaluated in vitro using a standard model system, the DPPH assay, and was found to vary according to C. citratus (90.9%) > C. sinensis (87.8%) > M. officinalis (50.7%) > M. chamomilla (45.3%) > T. cordata (32.2%) > L. citriodora (28.0%). The aqueous extracts presented lower antioxidant activity than the corresponding ethanolic ones.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01T00:00:00Z
2013-01-01T00:00:00Z
2021-04-22T09:37:50Z
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/10284/9757
url http://hdl.handle.net/10284/9757
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Vinha, A.F., Barreira, S.V.P., Castro, A., Machado, M. 2013. Comparison Between the phytochemical and antioxidant properties of plants used in plant infusions for medicinal purposes. Journal of Agricultural Science, 5(11), 11-19. (doi: 10.5539/jas.v5n11p11)
1916-9752
10.5539/jas.v5n11p11
1916-9760
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 Canadian Center of Science and Education
publisher.none.fl_str_mv Canadian Center of Science and Education
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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