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Antimicrobial activity of essential oils isolated from Portuguese endemic species of Thymus

2003Journal article Restricted access
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dc.contributor.authorFaleiro, Leonor
dc.contributor.authorMiguel, Maria Graça
dc.contributor.authorLadeiro, F.
dc.contributor.authorVenancio, F.
dc.contributor.authorTavares, R.
dc.contributor.authorBrito, J. C.
dc.contributor.authorFigueiredo, A. C.
dc.contributor.authorBarroso, J. G.
dc.contributor.authorPedro, L. G.
dc.date.accessioned2015-06-15T14:53:29Z
dc.date.available2015-06-15T14:53:29Z
dc.date.issued2003
dc.description.abstractAims: Thymus species are wild species mostly found in the arid lands of Portugal. Possible antimicrobial properties of Thymus essential oils have been investigated. The chemical composition of the essential oils and the antimicrobial activity of Thymus mastichina (L) L. subsp. mastichina , T. camphoratus and T. lotocephalus from different regions of Portugal were analysed. Methods and Results: Hydrodistillation was used to isolate the essential oils and the chemical analyses were performed by gas chromatography (GC) and GC coupled to mass spectrometry. The antimicrobial activity was tested by the disc agar diffusion technique against Candida albicans , Escherichia coli , Listeria monocytogenes , Proteus mirabilis , Salmonella spp. and Staphylococcus aureus . Pure linalool, 1,8-cineole and a mixture (1:1) of these compounds were included. Linalool, 1,8-cineole or linalool/1,8-cineole and linalool/1,8-cineole/linalyl acetate were the major components of the essential oils, depending on the species or sampling place. The essential oils isolated from the Thymus species studied demonstrated antimicrobial activity but the micro-organisms tested had significantly different sensitivities. Conclusions: The antimicrobial activity of essential oils may be related to more than one component. Significance and Impact of the Study: Portuguese endemic species of Thymus can be used for essential oil production for food spoilage control, cosmetics and pharmaceutical use. Further studies will be required to elucidate the cell targets of the essential oil components.
dc.identifier.doihttps://dx.doi.org/10.1046/j.1472-765X.2003.01259.x
dc.identifier.issn0266-8254
dc.identifier.otherAUT: MGM00322; MFA00238;
dc.identifier.urihttp://hdl.handle.net/10400.1/6303
dc.language.isoeng
dc.peerreviewedyes
dc.publisherThe Society for Applied Microbiology
dc.relation.isbasedonP-000-K3N
dc.titleAntimicrobial activity of essential oils isolated from Portuguese endemic species of Thymus
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage40
oaire.citation.issue1
oaire.citation.startPage35
oaire.citation.titleLetters in Applied Microbiology
oaire.citation.volume36
person.familyNameFaleiro
person.familyNameMiguel
person.givenNameMaria Leonor
person.givenNameMaria da Graça
person.identifier252666
person.identifier.ciencia-id281D-5E01-F09A
person.identifier.ciencia-id6110-6FE7-DF28
person.identifier.orcid0000-0002-3878-6948
person.identifier.orcid0000-0003-2507-4228
person.identifier.scopus-author-id6507927018
person.identifier.scopus-author-id35562054500
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication5361e29a-3b79-4ce8-9f87-0c667d60588d
relation.isAuthorOfPublication2507350f-9e60-4d4a-a096-53e58d93549c
relation.isAuthorOfPublication.latestForDiscovery2507350f-9e60-4d4a-a096-53e58d93549c

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