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Antibacterial activity of ergosterol peroxide against Mycobacterium tuberculosis

dc.contributor.authorDuarte, Noelia
dc.contributor.authorFerreira, Maria-Jose U.
dc.contributor.authorMartins, Marta
dc.contributor.authorViveiros, Miguel
dc.contributor.authorAmaral, Leonard
dc.date.accessioned2015-12-30T10:18:09Z
dc.date.available2015-12-30T10:18:09Z
dc.date.issued2007
dc.description.abstractErgosterol peroxide, cycloart-23-en-3 beta,25-diol, vanillin and 4-hydroxybenzaldehyde have been isolated and characterized from a crude methanol extract of Euphorbia lagascae. Previous studies have shown contradictory results about the antibacterial activity of ergosterol peroxide against Mycobacterium tuberculosis. In order to clarify this question, the activity of this compound was tested against Mycobacterium tuberculosis H37Rv ATCC 27294 strain using two different systems: BACTEC 460TB (Bactec 460) and BACTEC MGIT 960 system (Bactec 960). The results obtained show that significant activity was demonstrable only with the Bactec 460 system. The lack of activity noted with the Bactec 960 system appears to be due to the much faster growth rate of the organism in the medium of this system as opposed to that of the Bactec 460 system. Ergosterol peroxide is also shown by the current study to be devoid of any activity against an antibiotic sensitive ATCC strain of Staphylococcus aureus.
dc.formatapplication/pdf
dc.identifier.citationPHYTOTHERAPY RESEARCH. - Vol. 21, n. 7 (JUL 2007), p. 601-604
dc.identifier.doihttp://dx.doi.org/10.1002/ptr.2119
dc.identifier.issn0951-418X
dc.identifier.urihttp://hdl.handle.net/10451/21440
dc.language.isoeng
dc.publisherJOHN WILEY & SONS LTD
dc.subjectChemistry, Medicinal
dc.subjectPharmacology & Pharmacy
dc.titleAntibacterial activity of ergosterol peroxide against Mycobacterium tuberculosis
dc.titleDependence upon system and medium employed
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage604por
oaire.citation.startPage601por
oaire.citation.titlePHYTOTHERAPY RESEARCHpor
oaire.citation.volumeVol. 21por
rcaap.rightsrestrictedAccess
rcaap.typearticle

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