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| Registros recuperados: 28 | |
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| Nascimento,Maristela da Silva do; Moreno,Izildinha; Kuaye,Arnaldo Yoshiteru. |
| 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.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterococcus faecium; Bacteriocin; Biopreservation; Gram-positive pathogen. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100013 |
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| Furtado,Danielle N.; Todorov,Svetoslav D.; Landgraf,Mariza; Destro,Maria T.; Franco,Bernadette D.G.M.. |
| Listeria monocytogenes is a pathogen frequently found in dairy products. Its control in fresh cheeses is difficult, due to the psychrotrophic properties and salt tolerance. Bacteriocinogenic lactic acid bacteria (LAB) with proven in vitro antilisterial activity can be an innovative technological approach but their application needs to be evaluated by means of in situ tests. In this study, a novel bacteriocinogenic Lactococcus lactis strain (Lc. lactis DF4Mi), isolated from raw goat milk, was tested for control of growth of L. monocytogenes in artificially contaminated fresh Minas type goat cheese during storage under refrigeration. A bacteriostatic effect was achieved, and counts after 10 days were 3 log lower than in control cheeses with no added LAB.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteriocin; Lc. lactis subsp. lactis; Biopreservation; Fresh cheese; Goat cheese. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100201 |
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| Tosoni,Natara Favaro; Perini,Hugo Felix; Terra,Márcia Regina; Katsuda,Marly Sayuri; Furlaneto,Márcia Cristina; Maia,Luciana Furlaneto. |
| ABSTRACT: Shiga-like toxin-producing Escherichia coli (STEC) is an important source of food contamination that presents risks to human health. Several industrial food processes eliminate this microorganism; however, these processes can alter the characteristics of the product. Alternative methods of preservation have been identified as an option to control these foodborne pathogens. The purpose of this study was to evaluate the action of bacteriocins produced by Enterococcus durans MF5 in STEC cells. Cell-free supernatant (CFS) containing enterocins from the MF5 isolate was tested over different time points (6, 18, and 24 h). Enterocins present in the crude CFS showed inhibition against STEC at all time points. In the investigation of cell integrity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteriocin; Spot-on lawn assay; STEC.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900452 |
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| Registros recuperados: 28 | |
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