Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/10198/779 |
Resumo: | The antioxidant properties of different almond cultivars (cv.), either regional (Casanova, Duro Italiano, Molar, Orelha de Mula and Pegarinhos cv.) or commercial (Ferraduel, Ferranhês, Ferrastar and Guara cv.) were evaluated through several chemical and biochemical assays: DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, reducing power, inhibition of b-carotene bleaching, inhibition of oxidative hemolysis in erythrocytes, induced by 2,20-azobis(2-amidinopropane)dihydrochloride (AAPH), and inhibition of thiobarbituric acid reactive substances (TBARS) formation in brain cells, all used as models for the lipid peroxidation damage in biomembranes. The EC50 values were calculated for all the methods in order to evaluate the antioxidant efficiency of each almond cultivar. Bioactive compounds such as phenols and flavonoids were also obtained and correlated to antioxidant activity. The results obtained were quite heterogeneous, revealing significant differences among the cultivars assayed. Duro Italiano cv. revealed better antioxidant properties, presenting lower EC50 values in all assays, and the highest antioxidants contents. The protective effect of this cultivar on erythrocyte biomembrane hemolysis was maintained during 4 h. |
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Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivarsAlmondAntioxidantsScavenging effectPeroxidationHemolysis inhibitionThe antioxidant properties of different almond cultivars (cv.), either regional (Casanova, Duro Italiano, Molar, Orelha de Mula and Pegarinhos cv.) or commercial (Ferraduel, Ferranhês, Ferrastar and Guara cv.) were evaluated through several chemical and biochemical assays: DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, reducing power, inhibition of b-carotene bleaching, inhibition of oxidative hemolysis in erythrocytes, induced by 2,20-azobis(2-amidinopropane)dihydrochloride (AAPH), and inhibition of thiobarbituric acid reactive substances (TBARS) formation in brain cells, all used as models for the lipid peroxidation damage in biomembranes. The EC50 values were calculated for all the methods in order to evaluate the antioxidant efficiency of each almond cultivar. Bioactive compounds such as phenols and flavonoids were also obtained and correlated to antioxidant activity. The results obtained were quite heterogeneous, revealing significant differences among the cultivars assayed. Duro Italiano cv. revealed better antioxidant properties, presenting lower EC50 values in all assays, and the highest antioxidants contents. The protective effect of this cultivar on erythrocyte biomembrane hemolysis was maintained during 4 h.ElsevierBiblioteca Digital do IPBBarreira, João C.M.Ferreira, Isabel C.F.R.Oliveira, BeatrizPereira, J.A.2008-09-08T09:00:03Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/779engBarreira, João C.M.; Ferreira, Isabel C.F.R.; Oliveira, M.B.P.P.; Pereira, J.A. (2008). Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars. Food and Chemical Toxicology. ISSN 0278-6915. 46:6, p. 2230-22350278-691510.1016/j.fct.2008.02.024info: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:RCAAP2023-11-21T10:03:51Zoai:bibliotecadigital.ipb.pt:10198/779Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:54:26.079425Repositório 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 |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
title |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
spellingShingle |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars Barreira, João C.M. Almond Antioxidants Scavenging effect Peroxidation Hemolysis inhibition |
title_short |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
title_full |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
title_fullStr |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
title_full_unstemmed |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
title_sort |
Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars |
author |
Barreira, João C.M. |
author_facet |
Barreira, João C.M. Ferreira, Isabel C.F.R. Oliveira, Beatriz Pereira, J.A. |
author_role |
author |
author2 |
Ferreira, Isabel C.F.R. Oliveira, Beatriz Pereira, J.A. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Barreira, João C.M. Ferreira, Isabel C.F.R. Oliveira, Beatriz Pereira, J.A. |
dc.subject.por.fl_str_mv |
Almond Antioxidants Scavenging effect Peroxidation Hemolysis inhibition |
topic |
Almond Antioxidants Scavenging effect Peroxidation Hemolysis inhibition |
description |
The antioxidant properties of different almond cultivars (cv.), either regional (Casanova, Duro Italiano, Molar, Orelha de Mula and Pegarinhos cv.) or commercial (Ferraduel, Ferranhês, Ferrastar and Guara cv.) were evaluated through several chemical and biochemical assays: DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, reducing power, inhibition of b-carotene bleaching, inhibition of oxidative hemolysis in erythrocytes, induced by 2,20-azobis(2-amidinopropane)dihydrochloride (AAPH), and inhibition of thiobarbituric acid reactive substances (TBARS) formation in brain cells, all used as models for the lipid peroxidation damage in biomembranes. The EC50 values were calculated for all the methods in order to evaluate the antioxidant efficiency of each almond cultivar. Bioactive compounds such as phenols and flavonoids were also obtained and correlated to antioxidant activity. The results obtained were quite heterogeneous, revealing significant differences among the cultivars assayed. Duro Italiano cv. revealed better antioxidant properties, presenting lower EC50 values in all assays, and the highest antioxidants contents. The protective effect of this cultivar on erythrocyte biomembrane hemolysis was maintained during 4 h. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-09-08T09:00:03Z 2008 2008-01-01T00:00:00Z |
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/10198/779 |
url |
http://hdl.handle.net/10198/779 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Barreira, João C.M.; Ferreira, Isabel C.F.R.; Oliveira, M.B.P.P.; Pereira, J.A. (2008). Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars. Food and Chemical Toxicology. ISSN 0278-6915. 46:6, p. 2230-2235 0278-6915 10.1016/j.fct.2008.02.024 |
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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1799135142747308032 |