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Star anise (Illicium verum Hook. f.) essential oil: Antioxidant properties and antibacterial activity against Acinetobacter baumannii

2019Journal article Restricted access
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dc.contributor.authorLuís, Ângelo
dc.contributor.authorSousa, Sónia
dc.contributor.authorWackerlig, Judith
dc.contributor.authorDobusch, Daniel
dc.contributor.authorDuarte, Ana Paula
dc.contributor.authorPereira, L.
dc.contributor.authorDomingues, F.C.
dc.date.accessioned2020-01-28T16:18:18Z
dc.date.available2020-01-28T16:18:18Z
dc.date.issued2019
dc.description.abstractThe increased resistance of pathogenic bacteria to multiple antimicrobial agents is becoming a significant public health threat. For many pathogenic bacteria there are already limited or no effective antimicrobials available to treat the infections caused by them. Acinetobacter baumannii is a Gram‐negative, biofilm‐forming, nonmotile coccobacillus and a major human pathogen causing hospital‐acquired infections, such as ventilator‐associated pneumonia, bacteraemia, meningitis, and urinary tract and wound infections. There is therefore a clear need to discover new compounds and strategies to overcome widespread antimicrobial resistance, with a focus on A. bau-mannii strains. Star anise (Illicium verum Hook. f.) has been widely used as an ingredi‐ent in traditional Chinese cooking, as a flavouring agent, and as a medicine for over 3000 years; however, the essential oil (EO) isolated from star anise has not been fur‐ther characterized in terms of its bioactivities and potential applications. In this work, a screening of the biological properties of star anise EO together with its chemical characterization were performed. Special attention was given to the impact of this EO in the formation of biofilms by A. baumannii. It was demonstrated that star anise EO is able to scavenge free radicals, to inhibit lipid peroxidation, and to inhibit protein denaturation, which is associated with its antioxidant and anti‐inflammatory proper‐ties. Moreover, the effects of the EO on the planktonic and biofilm cells of A. bau-mannii, inhibiting the formation of biofilms, dispersing preformed biofilms, and decreasing the capacity of the bacterial cells to adhere to polystyrene, together with its ability to inhibit quorum sensing, were also demonstrated.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1002/ffj.3498pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/8820
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAnti‐inflammatorypt_PT
dc.subjectAnti‐quorum sensingpt_PT
dc.subjectBiofilmspt_PT
dc.subjectTrans‐anetholept_PT
dc.titleStar anise (Illicium verum Hook. f.) essential oil: Antioxidant properties and antibacterial activity against Acinetobacter baumanniipt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F00709%2F2013/PT
oaire.citation.endPage270pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage260pt_PT
oaire.citation.titleFlavour and Fragrance Journalpt_PT
oaire.citation.volume34pt_PT
oaire.fundingStream5876
person.familyNameSantos Luís
person.familyNameSousa
person.familyNameWackerlig
person.familyNameDuarte
person.familyNamePereira
person.familyNameDomingues
person.givenNameÂngelo Filipe
person.givenNameSónia
person.givenNameJudith
person.givenNameAna Paula
person.givenNameLuísa
person.givenNameFernanda
person.identifier1255684
person.identifier.ciencia-id3D14-798B-65D3
person.identifier.ciencia-idBC15-D376-80FE
person.identifier.ciencia-id4F15-1868-D001
person.identifier.ciencia-id6514-0498-3E8F
person.identifier.orcid0000-0003-0712-6522
person.identifier.orcid0000-0002-7263-9618
person.identifier.orcid0009-0009-8832-6745
person.identifier.orcid0000-0003-3333-5977
person.identifier.orcid0000-0002-9068-4607
person.identifier.orcid0000-0002-9540-0853
person.identifier.ridB-5904-2009
person.identifier.ridN-7295-2013
person.identifier.scopus-author-id7005854536
person.identifier.scopus-author-id7102602131
person.identifier.scopus-author-id10839238300
person.identifier.scopus-author-id10139481400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctCopyright cedido à editora no momento da publicaçãopt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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