Publicação
Antioxidant potential of two red seaweeds from the Brazilian coasts
| Resumo: | In this work, in vitro antioxidant activity of two Brazilian red seaweeds, Gracilaria birdiae and Gracilaria cornea, was characterized. The total phenolic content, the radical-scavenging activity and the antioxidant activity were determined in two solvent extracts of the algae. Liquid chromatography mass spectrometry (LC MS/MS) allowed identification of important antioxidant compounds. The ethanol extract of G. birdiae was found to have the highest value of total phenolic content: 1.13 mg of gallic acid equiv (GAE)/g of extract.The radical-scavenging activity of G. birdiae and G. cornea extracts has been evaluated at different extract concentrations; the IC50 values of ethanolic extracts of G. cornea and G. birdiae were 0.77 and 0.76mgmL 1, respectively, while formethanolic extracts, the IC50 values of G. cornea and G. birdiae were 0.86 and 0.76mgmL 1, respectively. The antioxidant activities of these two seaweeds’ extracts as assessed by the ß-carotene linoleic acid assay were equally high, achieving values of ß-carotene oxidation inhibition of up to 40%. Finally, in the methanolic extracts, LC MS/MS allowed identification in both algae of two important antioxidants: apigenin and gallic acid. |
|---|---|
| Autores principais: | Souza, Bartolomeu W.S. |
| Outros Autores: | Cerqueira, Miguel A.; Martins, Joana T.; Ferreira, António C.; Teixeira, J. A.; Vicente, A. A. |
| Assunto: | Antioxidant Seaweeds Phenolic content |
| Ano: | 2011 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439075605086208 |
|---|---|
| author | Souza, Bartolomeu W.S. |
| author2 | Cerqueira, Miguel A. Martins, Joana T. Ferreira, António C. Teixeira, J. A. Vicente, A. A. |
| author2_role | author author author author author |
| author_facet | Souza, Bartolomeu W.S. Cerqueira, Miguel A. Martins, Joana T. Ferreira, António C. Teixeira, J. A. Vicente, A. A. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Souza, Bartolomeu W.S.\"},{\"Person.name\":\"Cerqueira, Miguel A.\"},{\"Person.name\":\"Martins, Joana T.\"},{\"Person.name\":\"Ferreira, António C.\"},{\"Person.name\":\"Teixeira, J. A.\"},{\"Person.name\":\"Vicente, A. A.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Souza, Bartolomeu W.S. Cerqueira, Miguel A. Martins, Joana T. Ferreira, António C. Teixeira, J. A. Vicente, A. A. |
| datacite.date.Accepted.fl_str_mv | 2011-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-02-02T11:57:32Z |
| datacite.date.embargoed.fl_str_mv | 2012-02-02T11:57:32Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Antioxidant Seaweeds Phenolic content |
| datacite.titles.title.fl_str_mv | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Souza, Bartolomeu W.S. Cerqueira, Miguel A. Martins, Joana T. Ferreira, António C. Teixeira, J. A. Vicente, A. A. |
| dc.date.Accepted.fl_str_mv | 2011-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-02-02T11:57:32Z |
| dc.date.embargoed.fl_str_mv | 2012-02-02T11:57:32Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/16738 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | American Chemical Society |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Antioxidant Seaweeds Phenolic content |
| dc.title.fl_str_mv | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | In this work, in vitro antioxidant activity of two Brazilian red seaweeds, Gracilaria birdiae and Gracilaria cornea, was characterized. The total phenolic content, the radical-scavenging activity and the antioxidant activity were determined in two solvent extracts of the algae. Liquid chromatography mass spectrometry (LC MS/MS) allowed identification of important antioxidant compounds. The ethanol extract of G. birdiae was found to have the highest value of total phenolic content: 1.13 mg of gallic acid equiv (GAE)/g of extract.The radical-scavenging activity of G. birdiae and G. cornea extracts has been evaluated at different extract concentrations; the IC50 values of ethanolic extracts of G. cornea and G. birdiae were 0.77 and 0.76mgmL 1, respectively, while formethanolic extracts, the IC50 values of G. cornea and G. birdiae were 0.86 and 0.76mgmL 1, respectively. The antioxidant activities of these two seaweeds’ extracts as assessed by the ß-carotene linoleic acid assay were equally high, achieving values of ß-carotene oxidation inhibition of up to 40%. Finally, in the methanolic extracts, LC MS/MS allowed identification in both algae of two important antioxidants: apigenin and gallic acid. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/363637d0-aa13-4f9c-b6f9-c329e11fcf54/download |
| id | rum_d211adfa481bdaaf5cd3d1bc64e75ffd |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/16738 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/16738 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Souza, Bartolomeu W.S. Cerqueira, Miguel A. Martins, Joana T. Ferreira, António C. Teixeira, J. A. Vicente, A. A. |
| publishDate | 2011 |
| publisher.none.fl_str_mv | American Chemical Society |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engAmerican Chemical SocietyporIn this work, in vitro antioxidant activity of two Brazilian red seaweeds, Gracilaria birdiae and Gracilaria cornea, was characterized. The total phenolic content, the radical-scavenging activity and the antioxidant activity were determined in two solvent extracts of the algae. Liquid chromatography mass spectrometry (LC MS/MS) allowed identification of important antioxidant compounds. The ethanol extract of G. birdiae was found to have the highest value of total phenolic content: 1.13 mg of gallic acid equiv (GAE)/g of extract.The radical-scavenging activity of G. birdiae and G. cornea extracts has been evaluated at different extract concentrations; the IC50 values of ethanolic extracts of G. cornea and G. birdiae were 0.77 and 0.76mgmL 1, respectively, while formethanolic extracts, the IC50 values of G. cornea and G. birdiae were 0.86 and 0.76mgmL 1, respectively. The antioxidant activities of these two seaweeds’ extracts as assessed by the ß-carotene linoleic acid assay were equally high, achieving values of ß-carotene oxidation inhibition of up to 40%. Finally, in the methanolic extracts, LC MS/MS allowed identification in both algae of two important antioxidants: apigenin and gallic acid.application/pdfporAntioxidant potential of two red seaweeds from the Brazilian coastsSouza, Bartolomeu W.S.Cerqueira, Miguel A.Martins, Joana T.Ferreira, António C.Teixeira, J. A.Vicente, A. A.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptPMID21491929ISSNIsPartOf0021-8561DOIIsPartOf10.1021/jf200999n2012-02-02T11:57:32Z20112011-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/16738http://purl.org/coar/access_right/c_abf2open accessAntioxidantSeaweedsPhenolic content1413546 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/363637d0-aa13-4f9c-b6f9-c329e11fcf54/download |
| spellingShingle | Antioxidant potential of two red seaweeds from the Brazilian coasts Souza, Bartolomeu W.S. Antioxidant Seaweeds Phenolic content |
| status | SINGLETON |
| subject.fl_str_mv | Antioxidant Seaweeds Phenolic content |
| title | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| title_full | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| title_fullStr | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| title_full_unstemmed | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| title_short | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| title_sort | Antioxidant potential of two red seaweeds from the Brazilian coasts |
| topic | Antioxidant Seaweeds Phenolic content |
| topic_facet | Antioxidant Seaweeds Phenolic content |
| url | https://hdl.handle.net/1822/16738 |
| visible | 1 |