| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Biofilm formation by Staphylococcus aureus and Salmonella spp. under mono and dual-species conditions and their sensitivity to cetrimonium bromide, peracetic acid and sodium hypochlorite
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| Autores: |
Iñiguez-Moreno,Maricarmen
Gutiérrez-Lomelí,Melesio
Guerrero-Medina,Pedro Javier
Avila-Novoa,María Guadalupe
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| Data: |
2018-06-01
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| Ano: |
2018
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| Palavras-chave: |
Biofilms
Salmonella spp.
Staphylococcus aureus
Disinfectants
Sensitivity
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| Resumo: |
Abstract The aim of this study was evaluated the biofilm formation by Staphylococcus aureus 4E and Salmonella spp. under mono and dual-species biofilms, onto stainless steel 316 (SS) and polypropylene B (PP), and their sensitivity to cetrimonium bromide, peracetic acid and sodium hypochlorite. The biofilms were developed by immersion of the surfaces in TSB by 10 d at 37 °C. The results showed that in monospecies biofilms the type of surface not affected the cellular density (p > 0.05). However, in dual-species biofilms on PP the adhesion of Salmonella spp. was favored, 7.61 ± 0.13 Log10 CFU/cm2, compared with monospecies biofilms onto the same surface, 5.91 ± 0.44 Log10 CFU/cm2 (p < 0.05). The mono and dual-species biofilms were subjected to disinfection treatments; and the most effective disinfectant was peracetic acid (3500 ppm), reducing by more than 5 Log10 CFU/cm2, while the least effective was cetrimonium bromide. In addition, S. aureus 4E and Salmonella spp. were more resistant to the disinfectants in mono than in dual-species biofilms (p < 0.05). Therefore, the interspecies interactions between S. aureus 4E and Salmonella spp. had a negative effect on the antimicrobial resistance of each microorganism, compared with the monospecies biofilms.
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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=S1517-83822018000200310
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1016/j.bjm.2017.08.002
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.49 n.2 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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