Antioxidant activity and bioactive compounds of ten Portuguese regional and commercial almond cultivars

Detalhes bibliográficos
Autor(a) principal: Barreira, João C.M.
Data de Publicação: 2008
Outros Autores: Ferreira, Isabel C.F.R., Oliveira, Beatriz, Pereira, J.A.
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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spelling 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
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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