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Potentially pathogenic bacteria isolated from Paipa cheese and its susceptibility profiles to antibiotics and biocides.
Castellanos-Rozo, José; Pérez Pulido, Rubén; Grande, Mª José; Lucas, Rosario; Gálvez, Antonio.
Afiliação
  • Castellanos-Rozo J; Department of Biology and Microbiology, Faculty of Sciences and Engineering, Universidad de Boyacá, 150003, Tunja, Colombia.
  • Pérez Pulido R; Microbiology Division, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071, Jaén, Spain.
  • Grande MJ; Microbiology Division, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071, Jaén, Spain.
  • Lucas R; Microbiology Division, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071, Jaén, Spain.
  • Gálvez A; Microbiology Division, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071, Jaén, Spain. agalvez@ujaen.es.
Braz J Microbiol ; 52(3): 1535-1543, 2021 Sep.
Article em En | MEDLINE | ID: mdl-34050446
The objective of this work was to evaluate the microbiological quality of cheese produced by formal and informal micro-enterprises in Paipa, Colombia, to isolate potentially pathogenic bacteria and to determine their prevalence and resistance to antimicrobials such as antibiotics and biocides. Sixteen micro-enterprises of the seventy existing in the region were sampled during 3 years. Viable concentrations of aerobic mesophiles, total and fecal coliforms, Salmonella sp., Listeria monocytogenes, Staphylococcus sp., yeasts, and molds were determined. Seventy-three bacterial isolates were identified by 16S rRNA gene sequencing. The susceptibility of the isolates to antibiotics and biocides was determined. The results indicated that between 98 and 100% of the cheese samples (n = 48 samples) of formal and informal micro-enterprises presented populations of total and fecal coliforms and Staphylococcus sp. above the limits established by Colombian regulations and varied according to the micro-enterprise. The results also indicated that 56% of Staphylococcus isolates were S. aureus. L. monocytogenes was positive in 38% of the samples. Salmonella sp. was not detected. The coliforms that prevailed were Escherichia coli (25%), Citrobacter freundii (14%), and Proteus mirabilis (8%). All L. monocytogenes were sensitive to ampicillin but resistant to erythromycin and trimethoprim-sulfamethoxazole. S. aureus isolates were susceptible to most antibiotics, except tetracycline and erythromycin (7% resistance). Likewise, 30% of coliforms (n = 36) were multidrug-resistant to antibiotics but susceptible to biocides.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Contaminação de Alimentos / Queijo / Desinfetantes / Microbiologia de Alimentos / Antibacterianos Tipo de estudo: Risk_factors_studies País/Região como assunto: America do sul / Colombia Idioma: En Revista: Braz J Microbiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Contaminação de Alimentos / Queijo / Desinfetantes / Microbiologia de Alimentos / Antibacterianos Tipo de estudo: Risk_factors_studies País/Região como assunto: America do sul / Colombia Idioma: En Revista: Braz J Microbiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Brasil