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Screening for antimicrobial activity among bacteria isolated from the Amazon Basin BJM
Motta,Amanda S.; Cladera-Olivera,Florencia; Brandelli,Adriano.
Bacteria 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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial activity; Listeria monocytogenes; Bacteriocins; Amazon Basin.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300007
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