Phenolic constituents of lamium album: focus on isoscutellarein derivatives
Autor(a) principal: | |
---|---|
Data de Publicação: | 2012 |
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/10198/7587 |
Resumo: | Lamium album L. is an edible plant which is consumed raw or cooked, in particular in the Mediterranean and surrounding areas. It is also consumed as tea infusions and as a main component of food supplements, because of its pharmacological effects. Despite being consumed by humans for centuries, the chemical composition of L album L is far from being understood. In this study, a purified ethanolic extract (PEEL) was prepared and further analyzed by high performance liquid chromatography and electrospray mass spectrometry. Overall, verbascoside accounted for approximately half of the phenolic content of the extract, but this also contained other bioactive phenolic compounds herein detected for the first time in the genus, namely isoscutellarein derivatives. The latter included isoscutellarein-7-O-allosyl(1 -> 2)glucoside, its O-methyl derivative, three acetyl derivatives of isoscutellarein-O-allosyl glucoside and one acetylated form of O-methylisoscutellarein-7-O-allosyl(1 -> 2)glucoside. From those, the main isoscutellarein derivative was assigned to isoscutellarein-7-O-(6-O-acetyl-beta-allosyl)(1 -> 2)-beta-glucoside, as confirmed by NMR. Altogether, isoscutellarein derivatives accounted for almost 30% of PEEL phenolics. Since verbascoside and isoscutellarein derivatives are main components of L album L ethanolic extract, their possible association to the health benefits of the plant is discussed. |
id |
RCAP_58e0f4ffe8ae0cfaeb7e56c2c6999862 |
---|---|
oai_identifier_str |
oai:bibliotecadigital.ipb.pt:10198/7587 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Phenolic constituents of lamium album: focus on isoscutellarein derivativesLamium albumVerbascosideIsoverbascosideIsoscutellarein derivativesHigh performance liquid chromatographyElectrospray ionization-mass spectrometryLamium album L. is an edible plant which is consumed raw or cooked, in particular in the Mediterranean and surrounding areas. It is also consumed as tea infusions and as a main component of food supplements, because of its pharmacological effects. Despite being consumed by humans for centuries, the chemical composition of L album L is far from being understood. In this study, a purified ethanolic extract (PEEL) was prepared and further analyzed by high performance liquid chromatography and electrospray mass spectrometry. Overall, verbascoside accounted for approximately half of the phenolic content of the extract, but this also contained other bioactive phenolic compounds herein detected for the first time in the genus, namely isoscutellarein derivatives. The latter included isoscutellarein-7-O-allosyl(1 -> 2)glucoside, its O-methyl derivative, three acetyl derivatives of isoscutellarein-O-allosyl glucoside and one acetylated form of O-methylisoscutellarein-7-O-allosyl(1 -> 2)glucoside. From those, the main isoscutellarein derivative was assigned to isoscutellarein-7-O-(6-O-acetyl-beta-allosyl)(1 -> 2)-beta-glucoside, as confirmed by NMR. Altogether, isoscutellarein derivatives accounted for almost 30% of PEEL phenolics. Since verbascoside and isoscutellarein derivatives are main components of L album L ethanolic extract, their possible association to the health benefits of the plant is discussed.ElsevierBiblioteca Digital do IPBPereira, Olívia R.Domingues, Maria R.M.Silva, ArturCardoso, Susana M.2012-09-24T13:03:26Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/7587engPereira, Olívia R.; Domingues, Maria R. M.; Silva, Artur M. S.; Cardoso, Susana M. (2012). Phenolic constituents of lamium album: focus on isoscutellarein derivatives. Elsevier . ISSN 0963-9969. 48:1, p. 330-3350963-996910.1016/j.foodres.2012.04.009info: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:RCAAP2023-11-21T10:18:40Zoai:bibliotecadigital.ipb.pt:10198/7587Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:59:19.795161Repositório 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 |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
title |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
spellingShingle |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives Pereira, Olívia R. Lamium album Verbascoside Isoverbascoside Isoscutellarein derivatives High performance liquid chromatography Electrospray ionization-mass spectrometry |
title_short |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
title_full |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
title_fullStr |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
title_full_unstemmed |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
title_sort |
Phenolic constituents of lamium album: focus on isoscutellarein derivatives |
author |
Pereira, Olívia R. |
author_facet |
Pereira, Olívia R. Domingues, Maria R.M. Silva, Artur Cardoso, Susana M. |
author_role |
author |
author2 |
Domingues, Maria R.M. Silva, Artur Cardoso, Susana M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Pereira, Olívia R. Domingues, Maria R.M. Silva, Artur Cardoso, Susana M. |
dc.subject.por.fl_str_mv |
Lamium album Verbascoside Isoverbascoside Isoscutellarein derivatives High performance liquid chromatography Electrospray ionization-mass spectrometry |
topic |
Lamium album Verbascoside Isoverbascoside Isoscutellarein derivatives High performance liquid chromatography Electrospray ionization-mass spectrometry |
description |
Lamium album L. is an edible plant which is consumed raw or cooked, in particular in the Mediterranean and surrounding areas. It is also consumed as tea infusions and as a main component of food supplements, because of its pharmacological effects. Despite being consumed by humans for centuries, the chemical composition of L album L is far from being understood. In this study, a purified ethanolic extract (PEEL) was prepared and further analyzed by high performance liquid chromatography and electrospray mass spectrometry. Overall, verbascoside accounted for approximately half of the phenolic content of the extract, but this also contained other bioactive phenolic compounds herein detected for the first time in the genus, namely isoscutellarein derivatives. The latter included isoscutellarein-7-O-allosyl(1 -> 2)glucoside, its O-methyl derivative, three acetyl derivatives of isoscutellarein-O-allosyl glucoside and one acetylated form of O-methylisoscutellarein-7-O-allosyl(1 -> 2)glucoside. From those, the main isoscutellarein derivative was assigned to isoscutellarein-7-O-(6-O-acetyl-beta-allosyl)(1 -> 2)-beta-glucoside, as confirmed by NMR. Altogether, isoscutellarein derivatives accounted for almost 30% of PEEL phenolics. Since verbascoside and isoscutellarein derivatives are main components of L album L ethanolic extract, their possible association to the health benefits of the plant is discussed. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-09-24T13:03:26Z 2012 2012-01-01T00:00:00Z |
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/10198/7587 |
url |
http://hdl.handle.net/10198/7587 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pereira, Olívia R.; Domingues, Maria R. M.; Silva, Artur M. S.; Cardoso, Susana M. (2012). Phenolic constituents of lamium album: focus on isoscutellarein derivatives. Elsevier . ISSN 0963-9969. 48:1, p. 330-335 0963-9969 10.1016/j.foodres.2012.04.009 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
repository.mail.fl_str_mv |
|
_version_ |
1799135216676110336 |