Everybody loves cheese: crosslink between persistence and virulence of Shiga-toxin Escherichia coli.
Crit Rev Food Sci Nutr
; 61(11): 1877-1899, 2021.
Article
em En
| MEDLINE
| ID: mdl-32519880
ABSTRACT
General cheese manufacturing involves high temperatures, fermentation and ripening steps that function as hurdles to microbial growth. On the other hand, the application of several different formulations and manufacturing techniques may create a bacterial protective environment. In cheese, the persistent behavior of Shiga toxin-producing Escherichia coli (STEC) relies on complex mechanisms that enable bacteria to respond to stressful conditions found in cheese matrix. In this review, we discuss how STEC manages to survive to high and low temperatures, hyperosmotic conditions, exposure to weak organic acids, and pH decreasing related to cheese manufacturing, the cheese matrix itself and storage. Moreover, we discuss how these stress responses interact with each other by enhancing adaptation and consequently, the persistence of STEC in cheese. Further, we show how virulence genes eae and tir are affected by stress response mechanisms, increasing either cell adherence or virulence factors production, which leads to a selection of more resistant and virulent pathogens in the cheese industry, leading to a public health issue.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Queijo
/
Infecções por Escherichia coli
/
Escherichia coli Shiga Toxigênica
Limite:
Humans
Idioma:
En
Revista:
Crit Rev Food Sci Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Brasil