Safety, beneficial and technological properties of Enterococcus faecium isolated from Brazilian cheeses
AUTOR(ES)
Santos, Karina Maria Olbrich dos, Vieira, Antônio Diogo Silva, Salles, Hévila Oliveira, Oliveira, Jacqueline da Silva, Rocha, Cíntia Renata Costa, Borges, Maria de Fátima, Bruno, Laura Maria, Franco, Bernadette Dora Gombossy de Melo, Todorov, Svetoslav Dimitrov
FONTE
Braz. J. Microbiol.
DATA DE PUBLICAÇÃO
2015-03
RESUMO
This study aimed to characterize the safety and technological properties of Enterococcus faecium strains isolated from Brazilian Coalho cheeses. High levels of co-aggregation were observed between Enterococcus faecium strains EM485 and EM925 and both Escherichia coli and Clostridium perfringens. Both strains presented low levels of hydrophobicity. E. faecium EM485 and EM925 were both able to grow in the presence of 0.5% of the sodium salts of taurocholic acid (TC), taurodeoxycholic acid (TDC), glycocholic acid (GC), and glycodeoxycholic acid (GDC), although they showed the ability to deconjugate only GDC and TDC. Both strains showed good survival when exposed to conditions simulating the gastro intestinal tract (GIT). When tested for the presence of virulence genes, only tyrosine decarboxylase and vancomycin B generated positive PCR results.
Documentos Relacionados
- Assessment of physicochemical, textural and microbiological properties of brazilian white mold surface-ripened cheeses: a technological approach
- Molecular Analysis of Tn1546 in Enterococcus faecium Isolated from Animals and Humans
- Differences in Antibiotic Resistance Patterns of Enterococcus faecalis and Enterococcus faecium Strains Isolated from Farm and Pet Animals
- Vancomycin-dependent Enterococcus faecium isolated from stool following oral vancomycin therapy.
- Biofilm formation on polystyrene under different temperatures by antibiotic resistant Enterococcus faecalis and Enterococcus faecium isolated from food