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Safety, beneficial and technological properties of Enterococcus faecium isolated from Brazilian cheeses.
- Source :
-
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] [Braz J Microbiol] 2015 Mar 01; Vol. 46 (1), pp. 237-49. Date of Electronic Publication: 2015 Mar 01 (Print Publication: 2015). - Publication Year :
- 2015
-
Abstract
- 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.
- Subjects :
- Bacterial Adhesion
Brazil
Chemical Phenomena
Cholic Acids metabolism
Cholic Acids toxicity
Clostridium perfringens chemistry
Clostridium perfringens physiology
Enterococcus faecium chemistry
Escherichia coli chemistry
Escherichia coli physiology
Gastrointestinal Tract chemistry
Hydrophobic and Hydrophilic Interactions
Inactivation, Metabolic
Microbial Viability drug effects
Polymerase Chain Reaction
Virulence Factors analysis
Virulence Factors genetics
Cheese microbiology
Enterococcus faecium isolation & purification
Enterococcus faecium physiology
Food Handling methods
Food Safety
Subjects
Details
- Language :
- English
- ISSN :
- 1678-4405
- Volume :
- 46
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
- Publication Type :
- Academic Journal
- Accession number :
- 26221113
- Full Text :
- https://doi.org/10.1590/S1517-838246120131245