| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Antimicrobial activity of Enterococcus faecium FAIR-E 198 against gram-positive pathogens
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| Autores: |
Nascimento,Maristela da Silva do
Moreno,Izildinha
Kuaye,Arnaldo Yoshiteru
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| Data: |
2010-03-01
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| Ano: |
2010
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| Palavras-chave: |
Enterococcus faecium
Bacteriocin
Biopreservation
Gram-positive pathogen
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| Resumo: |
This study investigated the antimicrobial activity of Enterococcus faecium FAIR-E 198 against Bacillus cereus, Listeria monocytogenes and Staphylococcus aureus. Using the critical-dilution method, the bacteriocin produced by E. faecium FAIR-E 198 inhibited all L. monocytogenes strains evaluated (1,600 to 19,200 AU mL-1). However, none of the B. cereus and S. aureus strains investigated were inhibited. The maximum activity of this bacteriocin (800 AU mL-1) was observed in MRS broth, while the activity in milk was 100 AU mL-1. In the co-cultivation test in milk, B. cereus K1-B041 was reduced to below the detection limit (1.00 log CFU mL-1) after 48 h. E. faecium reduced the initial L. monocytogenes Scott A population by 1 log CFU mL-1 after 3 h at 35ºC. However, the pathogen regained growth, reaching 3.68 log CFU mL-1 after 48 h. E. faecium did not influence the growth of S. aureus ATCC 27154 during the 48 h of co-cultivation. Therefore, it can be concluded that the effectiveness of the antimicrobial activity of E. faecium FAIR-E 198 is strictly related to the species and strain of the target microorganism and to the culture medium.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100013
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S1517-83822010000100013
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.41 n.1 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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