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Detection of enterotoxins genes in coagulase-negative staphylococci isolated from foods BJM
Cunha,Maria de Lourdes Ribeiro de Souza da; Peresi,Eliana; Calsolari,Regina Adriana Oliveira; Araújo Júnior,João Pessoa.
Staphylococcal food poisoning is caused by ingestion of enterotoxins preformed in the food contaminated essentially through human manipulation or raw material obtained from animals. Although coagulase-positive Staphylococcus aureus is the main agent responsible for food intoxication, some researches emphasise that coagulase-negative staphylococci (CNS) are able to produce staphylococcal enterotoxins and may be a potential cause of food poisoning. In the present study CNS were isolated from foods and the toxigenic capacity of the strains determined. A total of 88 food samples were analysed and 22.7% were positive for CNS strains. Staphylococcal counts ranged from 3.0 x 10² to 1.4 x 10(6) CFU/g or mL of food examined. S. epidermidis predominated among the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coagulase-negative staphylococci; PCR; Enterotoxins.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000100013
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