Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones

Detalhes bibliográficos
Autor(a) principal: Spínola, Vítor
Data de Publicação: 2016
Outros Autores: Llorent-Martínez, Eulogio J., Gouveia-Figueira, Sandra, Castilho, Paula C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.13/3211
Resumo: The screening and quantification of the main phenolic compounds in leaves and flowers of Ulex europaeus (gorse) was carried out by high-performance liquid chromatography with electrospray ionization mass spectrometric detection (HPLC-ESI–MSn) after ultrasound-assisted extraction with methanol. About 98% of compounds corresponded to flavonoids, distributed as flavonols, flavones, isoflavones and flavanones. Flavonols were mainly quercetin glucosides; most of the found flavones were apigenin derivatives and the isoflavone group was dominated by glycitin. The flavanone group was composed mainly of liquiritigenin derivatives, substances usually found in liquorice (Glycyrrhiza ssp) and associated with high pharmacological relevance; in Ulex they represent about 25% of total polyphenols content. Phenolic acids and saponins were also detected, as minor components. In vitro antioxidant activity (nitric oxide, superoxide assays, ABTS and DPPH assays) of leaves and flowers, and their inhibitory effects towards digestive enzymes related to carbohydrate metabolism (-glucosidase and -amylase) were also studied.
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spelling Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanonesUlex europaeusIsoflavonesLiquiritigeninHPLC-ESI/MSn analysisAntioxidant activityDigestive enzymes inhibition.Faculdade de Ciências Exatas e da EngenhariaThe screening and quantification of the main phenolic compounds in leaves and flowers of Ulex europaeus (gorse) was carried out by high-performance liquid chromatography with electrospray ionization mass spectrometric detection (HPLC-ESI–MSn) after ultrasound-assisted extraction with methanol. About 98% of compounds corresponded to flavonoids, distributed as flavonols, flavones, isoflavones and flavanones. Flavonols were mainly quercetin glucosides; most of the found flavones were apigenin derivatives and the isoflavone group was dominated by glycitin. The flavanone group was composed mainly of liquiritigenin derivatives, substances usually found in liquorice (Glycyrrhiza ssp) and associated with high pharmacological relevance; in Ulex they represent about 25% of total polyphenols content. Phenolic acids and saponins were also detected, as minor components. In vitro antioxidant activity (nitric oxide, superoxide assays, ABTS and DPPH assays) of leaves and flowers, and their inhibitory effects towards digestive enzymes related to carbohydrate metabolism (-glucosidase and -amylase) were also studied.ElsevierDigitUMaSpínola, VítorLlorent-Martínez, Eulogio J.Gouveia-Figueira, SandraCastilho, Paula C.2021-03-26T16:00:51Z2016-01-01T00:00:00Z2016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/3211engSpínola, V., Llorent-Martínez, E. J., Gouveia-Figueira, S., & Castilho, P. C. (2016). Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones. Industrial Crops and Products, 90, 9-27.10.1016/j.indcrop.2016.06.007info: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:RCAAP2022-09-05T12:56:08Zoai:digituma.uma.pt:10400.13/3211Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:06:09.872063Repositório 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 Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
title Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
spellingShingle Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
Spínola, Vítor
Ulex europaeus
Isoflavones
Liquiritigenin
HPLC-ESI/MSn analysis
Antioxidant activity
Digestive enzymes inhibition
.
Faculdade de Ciências Exatas e da Engenharia
title_short Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
title_full Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
title_fullStr Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
title_full_unstemmed Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
title_sort Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones
author Spínola, Vítor
author_facet Spínola, Vítor
Llorent-Martínez, Eulogio J.
Gouveia-Figueira, Sandra
Castilho, Paula C.
author_role author
author2 Llorent-Martínez, Eulogio J.
Gouveia-Figueira, Sandra
Castilho, Paula C.
author2_role author
author
author
dc.contributor.none.fl_str_mv DigitUMa
dc.contributor.author.fl_str_mv Spínola, Vítor
Llorent-Martínez, Eulogio J.
Gouveia-Figueira, Sandra
Castilho, Paula C.
dc.subject.por.fl_str_mv Ulex europaeus
Isoflavones
Liquiritigenin
HPLC-ESI/MSn analysis
Antioxidant activity
Digestive enzymes inhibition
.
Faculdade de Ciências Exatas e da Engenharia
topic Ulex europaeus
Isoflavones
Liquiritigenin
HPLC-ESI/MSn analysis
Antioxidant activity
Digestive enzymes inhibition
.
Faculdade de Ciências Exatas e da Engenharia
description The screening and quantification of the main phenolic compounds in leaves and flowers of Ulex europaeus (gorse) was carried out by high-performance liquid chromatography with electrospray ionization mass spectrometric detection (HPLC-ESI–MSn) after ultrasound-assisted extraction with methanol. About 98% of compounds corresponded to flavonoids, distributed as flavonols, flavones, isoflavones and flavanones. Flavonols were mainly quercetin glucosides; most of the found flavones were apigenin derivatives and the isoflavone group was dominated by glycitin. The flavanone group was composed mainly of liquiritigenin derivatives, substances usually found in liquorice (Glycyrrhiza ssp) and associated with high pharmacological relevance; in Ulex they represent about 25% of total polyphenols content. Phenolic acids and saponins were also detected, as minor components. In vitro antioxidant activity (nitric oxide, superoxide assays, ABTS and DPPH assays) of leaves and flowers, and their inhibitory effects towards digestive enzymes related to carbohydrate metabolism (-glucosidase and -amylase) were also studied.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01T00:00:00Z
2016-01-01T00:00:00Z
2021-03-26T16:00:51Z
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/10400.13/3211
url http://hdl.handle.net/10400.13/3211
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Spínola, V., Llorent-Martínez, E. J., Gouveia-Figueira, S., & Castilho, P. C. (2016). Ulex europaeus: from noxious weed to source of valuable isoflavones and flavanones. Industrial Crops and Products, 90, 9-27.
10.1016/j.indcrop.2016.06.007
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
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