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Evaluation of the antioxidant activity of cell extracts from microalgae

2013Journal article Open access
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dc.contributor.authorGuedes, A. Catarina
dc.contributor.authorGião, Maria S.
dc.contributor.authorSeabra, Rui
dc.contributor.authorFerreira, Antonio
dc.contributor.authorTamagnini, Paula
dc.contributor.authorMoradas-Ferreira, Pedro
dc.contributor.authorMalcata, F. Xavier
dc.date.accessioned2014-05-08T12:41:24Z
dc.date.available2014-05-08T12:41:24Z
dc.date.issued2013
dc.description.abstractA growing market for novel antioxidants obtained from non-expensive sources justifies educated screening of microalgae for their potential antioxidant features. Characterization of the antioxidant profile of 18 species of cyanobacteria (prokaryotic microalgae) and 23 species of (eukaryotic) microalgae is accordingly reported in this paper. The total antioxidant capacity, accounted for by both water- and lipid-soluble antioxidants, was evaluated by the (radical cation) ABTS method. For complementary characterization of cell extracts, a deoxyribose assay was carried out, as well as a bacteriophage P22/Salmonella-mediated approach. The microalga Scenedesmus obliquus strain M2-1 exhibited the highest (p > 0.05) total antioxidant capacity (149 ± 47 AAU) of intracellular extracts. Its scavenger activity correlated well with its protective effects against DNA oxidative damage induced by copper(II)-ascorbic acid; and against decay in bacteriophage infection capacity induced by H2O2. Finally, performance of an Ames test revealed no mutagenic effects of the said extract.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationGUEDES, A. Catarina ...[et al.] - Evaluation of the Antioxidant Activity of Cell Extracts from Microalgae. Marine Drugs. ISSN 1660-3397. Vol. 11 (2013), p. 1256-1270por
dc.identifier.doi10.3390/md11041256
dc.identifier.issn1660-3397
dc.identifier.urihttp://hdl.handle.net/10400.14/14310
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherMDPI
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject16S rDNApor
dc.subjectABTSpor
dc.subjectPhage P22/Salmonellapor
dc.subjectDNApor
dc.subjectAmes testpor
dc.titleEvaluation of the antioxidant activity of cell extracts from microalgaepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1270
oaire.citation.issue11
oaire.citation.startPage1256
oaire.citation.titleMarine Drugs
person.familyNameGuedes
person.familyNameSeabra
person.familyNameSilva Ferreira
person.familyNameMalcata
person.givenNameA. Catarina
person.givenNameRui
person.givenNameAntonio Cesar
person.givenNameFrancisco
person.identifier126219
person.identifierJ-7814-2012
person.identifier.ciencia-id851A-7C31-0327
person.identifier.ciencia-id9815-6C66-E22B
person.identifier.ciencia-id931A-48DA-23A8
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.orcid0000-0002-9181-512X
person.identifier.orcid0000-0002-0240-3992
person.identifier.orcid0000-0002-1188-1021
person.identifier.orcid0000-0003-3073-1659
person.identifier.scopus-author-id7004710122
person.identifier.scopus-author-id7102542478
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublicationc96f422f-3c1f-4031-a0fb-bf0d70aff844
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relation.isAuthorOfPublicationa06c00da-0e2f-4434-8ede-4d7b22c0dfe9
relation.isAuthorOfPublication.latestForDiscovery4d538c23-9e63-46e9-a6ec-61fe666f72de

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