Cell enumeration and visualisation by transmission electron microscopy of Lactobacillus rhamnosus treated with cinnamon (Cinnamomum zeylanicum B.) essential oil

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dc.contributor.authorFeniman, C. M.
dc.contributor.authorRall, V. L. M. [UNESP]
dc.contributor.authorDoyama, J. T. [UNESP]
dc.contributor.authorFernandes Junior, A. [UNESP]
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:50:49Z
dc.date.available2014-05-20T13:50:49Z
dc.date.issued2012-01-01
dc.description.abstractThe use of essential oils (EOs) in functional foods containing probiotic microorganisms must consider the antimicrobial activity of these oils against beneficial bacteria such as Lactobacillus rhamnosus. This study aimed to evaluate the sensitivity of L. rhamnosus cultures treated with cinnamon EO through viable cell counts and visualisation by transmission electron microscopy. Cinnamon EO at a concentration of 0.04% had a bacteriostatic activity after 2 h of incubation. Although slight alterations were detected in the cell structure, this concentration was considered to be bactericidal, since it led to a significant reduction in cell numbers after 24 h. on the other hand, cinnamon EO at a 1.00% concentration decreased cell counts by 3 log units after 2 h incubation and no viable cell count was detected after 24 h. Transmission electron microscopy indicated that cells treated with 1.00% cinnamon EO were severely damaged and presented cell membrane disruption and cytoplasmic leakage.en
dc.description.affiliationUniversidade Estadual de Maringá (UEM), Dept Technol, Umuarama, PR, Brazil
dc.description.affiliationSão Paulo State Univ, Biosci Inst, Dept Microbiol & Immunol, Botucatu, SP, Brazil
dc.description.affiliationSão Paulo State Univ, Biosci Inst, Dept Chem & Biochem, Botucatu, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Biosci Inst, Dept Microbiol & Immunol, Botucatu, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Biosci Inst, Dept Chem & Biochem, Botucatu, SP, Brazil
dc.format.extent1721-1723
dc.identifierhttp://dx.doi.org/10.1080/14786419.2011.605365
dc.identifier.citationNatural Product Research. Abingdon: Taylor & Francis Ltd, v. 26, n. 18, p. 1721-1723, 2012.
dc.identifier.doi10.1080/14786419.2011.605365
dc.identifier.issn1478-6419
dc.identifier.lattes1843683720990222
dc.identifier.urihttp://hdl.handle.net/11449/18140
dc.identifier.wosWOS:000307927400012
dc.language.isoeng
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofNatural Product Research
dc.relation.ispartofjcr1.928
dc.relation.ispartofsjr0,671
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectessential oilsen
dc.subjectprobiotic foodsen
dc.subjectLactobacillus rhamnosusen
dc.titleCell enumeration and visualisation by transmission electron microscopy of Lactobacillus rhamnosus treated with cinnamon (Cinnamomum zeylanicum B.) essential oilen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dcterms.rightsHolderTaylor & Francis Ltd
unesp.author.lattes1843683720990222
unesp.author.lattes8310835825824360[4]
unesp.author.orcid0000-0003-4280-5619[2]
unesp.author.orcid0000-0002-2744-2824[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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Artigos - Microbiologia e Imunologia - IBB
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