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Bacteriophages as an alternative for biological control of biofilm-forming Salmonella enterica

肠沙门氏菌 生物膜 微生物学 溶解循环 沙门氏菌 生物 噬菌体 血清型 抗菌剂 多重耐药 细菌 病毒学 大肠杆菌 抗药性 病毒 基因 生物化学 遗传学
作者
Emanuele Serro Pottker,Laura Beatriz Rodrigues,Karen Apellanis Borges,Suyene Oltramari de Souza,Thales Quedi Furian,Carlos Tadeu Pippi Salle,Hamilton Luiz de Souza Moraes,Vladimir Pinheiro do Nascimento
出处
期刊:Food Science and Technology International [SAGE Publishing]
卷期号:30 (3): 197-206 被引量:1
标识
DOI:10.1177/10820132221144341
摘要

Salmonellosis is one of the most common foodborne diseases worldwide. Surface adherence and biofilm formation are among the main strategies evolved by Salmonella to survive under harsh conditions and are risk factors for its spread through the food chain. Owing to the increase in antimicrobial resistance, there is a growing need to develop other methods to control foodborne pathogens, and bacteriophages have been suggested as a potential alternative for this purpose. The aim of this study was to evaluate bacteriophages as a biological control of Salmonella enterica serotypes to inhibit and remove bacterial biofilms. A total of 12 S. enterica isolates were selected for this study, all of which were biofilm producers. Seven bacteriophages were tested, individually and in a cocktail, for their host range and efficiency of plating (EOP). The phage cocktail was evaluated for its antibiofilm effect against the Salmonella biofilms. Phages UPF_BP1, UPF_BP2, UPF_BP3, UPF_BP6, and 10:2 possessed a broad lytic spectrum and could infect all S. enterica strains. Phages 10:2, UPF_BP6, and UPF_BP3 had high EOP in 10, 9, and 9 out of the 12 S. enterica strains, respectively. The cocktail was able to infect all S. enterica strains and had a high EOP in 10 out of 12 S. enterica isolates, presenting a broader host range than any of the tested single phages. A wide variation of inhibition among strains was observed, ranging from 14.72% to 88.53%. Multidrug-resistant and strong biofilm producer strains showed high biofilm inhibition levels by phage cocktail. Our findings demonstrate the ability of the cocktail to prevent biofilm formation and remove formed biofilms of Salmonella. These results indicate that the phage cocktail is a promising candidate to be used as an alternative for the control of Salmonella biofilms through surface conditioning.
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