The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/1822/37616 |
Resumo: | Currently, oxidative stress related damages and opportunistic infections exert a direct implication on public health. Environmental factors and whole cellular metabolism comprises the first intervenient on the imbalance homeostasis. Additionally, stress and the overuse of chemical substances, namely antimicrobial drugs, improve this problem by two ways: increasing free radicals generation and suppressing immune system functions. Thus, to improve health and wellbeing other safer and effective alternatives are necessary. Thymus vulgaris L. (thyme) has been widely cultivated not only for nutritional but also medicinal purposes. Essential oils have been the main focus of research studies but its incorrect use might provide toxicity. In the present study, the antioxidant and antibacterial activities of thyme phenolic-compounds rich extracts, obtained by decoction, infusion and hydroalcoholic extraction, were analyzed and compared. Furthermore, the extracts were characterized in terms of phenolic compounds by HPLC-DAD/ESI-MS. The extract obtained by decoction evidenced the most pronounced antioxidant (reducing power, free radicals scavenging activity and lipid peroxidation inhibition) and antibacterial (against gram-positive and gram-negative bacteria) potential, related to the its highest abundance of phenolic compounds, followed by the extracts obtained by infusion and hydroalcoholic extraction, respectively. Rosmarinic acid (in all the preparations), luteolin 7-O-glucoside (in the hydroalcoholic extract) and luteolin 7-O-glucuronide (in the infusion and decoction) were the most abundant phenolic acids and flavonoids found. The obtained data supports the idea that the compounds responsible for the antioxidant and antibacterial activities are water-soluble, conferring considerable health benefits to the studied plant that could be included as complement of daily food. |
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The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposesThymus vulgaris L.Phenolic compoundsAntioxidant activityAntibacterial activityCurrently, oxidative stress related damages and opportunistic infections exert a direct implication on public health. Environmental factors and whole cellular metabolism comprises the first intervenient on the imbalance homeostasis. Additionally, stress and the overuse of chemical substances, namely antimicrobial drugs, improve this problem by two ways: increasing free radicals generation and suppressing immune system functions. Thus, to improve health and wellbeing other safer and effective alternatives are necessary. Thymus vulgaris L. (thyme) has been widely cultivated not only for nutritional but also medicinal purposes. Essential oils have been the main focus of research studies but its incorrect use might provide toxicity. In the present study, the antioxidant and antibacterial activities of thyme phenolic-compounds rich extracts, obtained by decoction, infusion and hydroalcoholic extraction, were analyzed and compared. Furthermore, the extracts were characterized in terms of phenolic compounds by HPLC-DAD/ESI-MS. The extract obtained by decoction evidenced the most pronounced antioxidant (reducing power, free radicals scavenging activity and lipid peroxidation inhibition) and antibacterial (against gram-positive and gram-negative bacteria) potential, related to the its highest abundance of phenolic compounds, followed by the extracts obtained by infusion and hydroalcoholic extraction, respectively. Rosmarinic acid (in all the preparations), luteolin 7-O-glucoside (in the hydroalcoholic extract) and luteolin 7-O-glucuronide (in the infusion and decoction) were the most abundant phenolic acids and flavonoids found. The obtained data supports the idea that the compounds responsible for the antioxidant and antibacterial activities are water-soluble, conferring considerable health benefits to the studied plant that could be included as complement of daily food.OMICS Publishing GroupUniversidade do MinhoMartins, NatáliaBarros, LillianSantos-Buelga, CelestinoSilva, Sónia CarinaHenriques, MarianaFerreira, Isabel C. F. R.2015-082015-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/37616engMartins, N.; Barros, Lillian; Santos-Buelga, Celestino; Silva, Sónia Carina; Henriques, Mariana; Ferreira, Isabel C. F. R., The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes. Chemotherapy: Open Access, 4(2), 57-57, 20152167-7700http://www.omicsgroup.org/journals/chemotherapy-open-access.phpinfo: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:RCAAP2023-07-21T12:37:33Zoai:repositorium.sdum.uminho.pt:1822/37616Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:33:52.425305Repositório 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 |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
title |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
spellingShingle |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes Martins, Natália Thymus vulgaris L. Phenolic compounds Antioxidant activity Antibacterial activity |
title_short |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
title_full |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
title_fullStr |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
title_full_unstemmed |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
title_sort |
The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes |
author |
Martins, Natália |
author_facet |
Martins, Natália Barros, Lillian Santos-Buelga, Celestino Silva, Sónia Carina Henriques, Mariana Ferreira, Isabel C. F. R. |
author_role |
author |
author2 |
Barros, Lillian Santos-Buelga, Celestino Silva, Sónia Carina Henriques, Mariana Ferreira, Isabel C. F. R. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Martins, Natália Barros, Lillian Santos-Buelga, Celestino Silva, Sónia Carina Henriques, Mariana Ferreira, Isabel C. F. R. |
dc.subject.por.fl_str_mv |
Thymus vulgaris L. Phenolic compounds Antioxidant activity Antibacterial activity |
topic |
Thymus vulgaris L. Phenolic compounds Antioxidant activity Antibacterial activity |
description |
Currently, oxidative stress related damages and opportunistic infections exert a direct implication on public health. Environmental factors and whole cellular metabolism comprises the first intervenient on the imbalance homeostasis. Additionally, stress and the overuse of chemical substances, namely antimicrobial drugs, improve this problem by two ways: increasing free radicals generation and suppressing immune system functions. Thus, to improve health and wellbeing other safer and effective alternatives are necessary. Thymus vulgaris L. (thyme) has been widely cultivated not only for nutritional but also medicinal purposes. Essential oils have been the main focus of research studies but its incorrect use might provide toxicity. In the present study, the antioxidant and antibacterial activities of thyme phenolic-compounds rich extracts, obtained by decoction, infusion and hydroalcoholic extraction, were analyzed and compared. Furthermore, the extracts were characterized in terms of phenolic compounds by HPLC-DAD/ESI-MS. The extract obtained by decoction evidenced the most pronounced antioxidant (reducing power, free radicals scavenging activity and lipid peroxidation inhibition) and antibacterial (against gram-positive and gram-negative bacteria) potential, related to the its highest abundance of phenolic compounds, followed by the extracts obtained by infusion and hydroalcoholic extraction, respectively. Rosmarinic acid (in all the preparations), luteolin 7-O-glucoside (in the hydroalcoholic extract) and luteolin 7-O-glucuronide (in the infusion and decoction) were the most abundant phenolic acids and flavonoids found. The obtained data supports the idea that the compounds responsible for the antioxidant and antibacterial activities are water-soluble, conferring considerable health benefits to the studied plant that could be included as complement of daily food. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08 2015-08-01T00:00:00Z |
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/1822/37616 |
url |
http://hdl.handle.net/1822/37616 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Martins, N.; Barros, Lillian; Santos-Buelga, Celestino; Silva, Sónia Carina; Henriques, Mariana; Ferreira, Isabel C. F. R., The use of different phenolic compounds rich extracts obtained from cultivated thyme for antioxidant and antibacterial purposes. Chemotherapy: Open Access, 4(2), 57-57, 2015 2167-7700 http://www.omicsgroup.org/journals/chemotherapy-open-access.php |
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 |
OMICS Publishing Group |
publisher.none.fl_str_mv |
OMICS Publishing Group |
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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1799132858439172096 |