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dc.contributor.authorMotta, Amanda de Souza dapt_BR
dc.contributor.authorOlivera, Florencia Claderapt_BR
dc.contributor.authorBrandelli, Adrianopt_BR
dc.date.accessioned2010-04-16T09:13:35Zpt_BR
dc.date.issued2004pt_BR
dc.identifier.issn1517-8382pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/20219pt_BR
dc.description.abstractBacteria producing antimicrobial activity were identified among 86 isolates from aquatic environments of Brazilian Amazon Basin. Antimicrobial activity against at least one indicator strain was detected for 59 isolates (68.6%). Inhibitory activity was mostly against Gram-positive bacteria, such as Listeria monocytogenes and Bacillus cereus. The antimicrobial substances produced by 19 strains that showed higher inhibitory activity were partially characterized. These antimicrobial substances showed thermal resistance for up to 100°C and partial resistance to proteolytic treatment. Some antimicrobials were partially resistant to pronase E at 2 mg ml-1 or to treatment with trichloroacetic acid. Detection of antimicrobial activity on polyacrylamide gels revealed that the molecular weight of the compounds was lower than 14 kDa. Several strains showed antibacterial activity, which in some cases appear to be related to antimicrobial peptides. The potential of these microorganisms to produce useful antimicrobial compounds is great and must be better explored.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofBrazilian journal of microbiology. São Paulo. vol. 35, n.4 (2004), p.307-310pt_BR
dc.rightsOpen Accessen
dc.subjectAtividade antimicrobianapt_BR
dc.subjectAntimicrobial activityen
dc.subjectListeria monocytogenesen
dc.subjectListeria monocytogenespt_BR
dc.subjectBacteriocinsen
dc.subjectBacteriocinapt_BR
dc.subjectAmazon basinen
dc.titleScreening for antimicrobial activity among bacteria isolated from the amazon basinpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000553653pt_BR
dc.type.originNacionalpt_BR


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