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Chemical composition and bioactivity of essential oils and extracts from Oregano from Madeira Island, Portugal

2009Journal article Open access
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dc.contributor.authorCastilho, P. C.
dc.contributor.authorWeinhold, T. S.
dc.contributor.authorGouveia, S. C
dc.contributor.authorSavluchinske-Feio, S.
dc.contributor.authorPereira, P. T.
dc.contributor.authorRodrigues, A. I.
dc.contributor.authorVenâncio, F.
dc.date.accessioned2021-04-08T13:57:51Z
dc.date.available2021-04-08T13:57:51Z
dc.date.issued2009
dc.description.abstractIn the course of ongoing investigations on polymorphic Lamiaceae species, we studied Origanum vulgare spp. virens growing wild in several locations of Madeira Island, Portugal. Variation in essential oil composition with climate conditions was studied. The antimicrobial activity of the various essential oils was determined against 10 strains of bacteria and yeasts, usually found as human pathogenic or food contaminants. The essential oils inhibited all the bacteria tested excepting for P. aeruginosa. The most sensitive microorganism was M. smegmatis with MIC = 25 µg ml-1 for two of the oils. The results of this study suggest a potential application of these oils in preventing the human pathogenic and food contaminant microorganisms growth. Radical scavenging capacity of essential oils and solvent extract (hexane, chloroform, ethyl acetate and methanol) were also determined, since interest of oregano resides in both non polar and polar fractions, all known by their very high antioxidant activity. From the hexane fraction, we obtained a large amount of 1-hexacosanol, C26H54O, a long chain alcohol, which was previously extracted in the non-esterified form only from Hygrophila erecta.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCastilho, P. C., Weinhold, T. S., Gouveia, S. C., Savluchinske-Feio, S., Pereira, P. T., Rodrigues, A. I., & Venancio, F. (2009). Chemical composition and bioactivity of essential oils and extracts from oregano from Madeira Island, Portugal. Acta Horticulturae, (826), 213-220.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3261
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInternational Society for Horticultural Science (ISHS)pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectOriganum virenspt_PT
dc.subjectCompositionpt_PT
dc.subjectAntioxidantpt_PT
dc.subjectAntibacterialpt_PT
dc.subjectHexacosanolpt_PT
dc.subjectMadeira Islandpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleChemical composition and bioactivity of essential oils and extracts from Oregano from Madeira Island, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage220pt_PT
oaire.citation.startPage213pt_PT
oaire.citation.titleActa Horticulturaept_PT
oaire.citation.volume826pt_PT
person.familyNameCastilho
person.familyNameGouveia-Figueira
person.givenNamePaula C
person.givenNameSandra
person.identifierA-4412-2013
person.identifier.ciencia-id6D15-8C69-A2E0
person.identifier.orcid0000-0002-8303-4286
person.identifier.orcid0000-0002-8116-2794
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd84fd917-438e-43bf-ac6f-256562481c05
relation.isAuthorOfPublicationf17ed1c1-62a1-48be-8299-95e04f4a1c5c
relation.isAuthorOfPublication.latestForDiscoveryf17ed1c1-62a1-48be-8299-95e04f4a1c5c

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