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Antimicrobial activity and lipid profile of seaweed extracts from the North Portuguese coast

dc.contributor.authorMendes, M.
dc.contributor.authorPereira, R.
dc.contributor.authorPinto, I. Sousa
dc.contributor.authorCarvalho, A. P.
dc.contributor.authorGomes, A. M.
dc.date.accessioned2014-05-08T12:00:07Z
dc.date.available2014-05-08T12:00:07Z
dc.date.issued2013
dc.description.abstractSeaweeds or marine macroalgae are a potential renewable resource in the marine environment and can represent a source of new natural compounds for human nutrition. This experimental work focused on the selection of a suitable extraction method, using Gracilaria vermiculophylla as a model, followed by the characterization of the antimicrobial activity of different solvent extracts of Gracilaria vermiculophylla, Porphyra dioica and Chondrus crispus, both from wild and from an integrated multi-trophic aquaculture system (IMTA), collected in the north of Portugal. Additionally, the fatty acid profile of the seaweed extracts was also investigated. Extraction tests included the definition of the physical state of the seaweed, temperature and type of solvents to be used during the process. Results revealed that test organisms (Gram negative and Gram positive bacteria as well as one yeast species) were more sensitive to extracts obtained with dried algae, processed continuously at higher temperatures. Results from antimicrobial activity of wild and IMTA seaweed extracts showed stronger antimicrobial activity in extracts of ethyl acetate when compared with those from methanol and diethyl ether; furthermore, among the type of microorganisms tested, there was tendency for inhibition of the Gram positive ones. In general, there appears to be a higher antimicrobial activity for the microorganisms under study in extracts obtained from aquaculture species, when compared with the wild ones. The fatty acid profile of ethyl acetate extracts revealed a predominance of saturated fatty acids (SFA), especially palmitic acid (16:0), followed by polyunsaturated fatty acids (PUFA) and monounsaturated fatty acids (MUFA). A higher content of fatty acids in aquaculture extracts of Gracilaria vermiculophylla and Porphyra dioica was also observed.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMENDES, M …[et al.] - Antimicrobial activity and lipid profile of seaweed extracts from the North portuguese coast. International Food Research Journal. ISSN 22317546. Vol. 20, n.º 6 (2013), p. 3337-3345por
dc.identifier.eid2-s2.0-84891652172
dc.identifier.eissn2231-7546
dc.identifier.issn1985-4668
dc.identifier.urihttp://hdl.handle.net/10400.14/14303
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherUniversiti Putra Malaysia
dc.subjectSeaweedpor
dc.subjectAntimicrobial activitypor
dc.subjectSolvent extractionpor
dc.subjectLipid profilepor
dc.titleAntimicrobial activity and lipid profile of seaweed extracts from the North Portuguese coastpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3345
oaire.citation.issue6
oaire.citation.startPage3337
oaire.citation.titleInternational Food Research Journal
oaire.citation.volume20
person.familyNameSousa Pinto
person.familyNameCarvalho
person.familyNameGomes
person.givenNameIsabel
person.givenNameAna
person.givenNameAna Maria
person.identifier666045
person.identifierK-5479-2013
person.identifier162628
person.identifier.ciencia-id8318-37C6-D10D
person.identifier.ciencia-id6F1E-301F-71BA
person.identifier.ciencia-idAA12-BFC1-B2E3
person.identifier.orcid0000-0002-9231-0553
person.identifier.orcid0000-0001-5967-4200
person.identifier.orcid0000-0001-7883-2446
person.identifier.ridG-1497-2010
person.identifier.ridK-5479-2013
person.identifier.ridB-9944-2013
person.identifier.scopus-author-id6602421354
person.identifier.scopus-author-id36855267200
person.identifier.scopus-author-id57190668768
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication189c6461-4355-4d20-8feb-1053401d87f2
relation.isAuthorOfPublication61e93e5c-d206-455d-84cb-d5cbc048ee5b
relation.isAuthorOfPublicationc18c2fb1-f3dc-4274-a646-23d456432798
relation.isAuthorOfPublication.latestForDiscoveryc18c2fb1-f3dc-4274-a646-23d456432798

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