Listeria monocytogenes, Coxiella burnetii, and Bacillus cereus in fresh cheese illegally marketed without inspection

This study aimed to assess hygienic-sanitary indicators and the presence of pathogenic agents in fresh cheeses produced through informal methods. A total of 51 samples of fresh cheese, which were produced without sanitary inspection and sold informally, were analyzed for the presence of Listeria mon...

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Bibliographic Details
Published in:Ciência e tecnologia de alimentos 2024-12, Vol.44
Main Authors: SÁ, Ana Carolina de, TADIELO, Leonardo Ereno, SANTOS, Emanoelli Aparecida Rodrigues dos, CERQUEIRA-CÉZAR, Camila Koutsodontis, CHINAQUE, Layara Chuvukian, JULIANO, Lára Cristina Bastos, OLIVEIRA, Janaina Prieto de, SILVA, Evelyn Cristine da, FLAMÍNIO, Ana Paula, MARTINS, Otávio Augusto, MIONI, Mateus de Souza Ribeiro, PAES, Antonio Carlos, POSSEBON, Fabio Sossai, PEREIRA, Juliano Gonçalves
Format: Article
Language:English
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Summary:This study aimed to assess hygienic-sanitary indicators and the presence of pathogenic agents in fresh cheeses produced through informal methods. A total of 51 samples of fresh cheese, which were produced without sanitary inspection and sold informally, were analyzed for the presence of Listeria monocytogenes, Salmonella spp., Bacillus cereus, coagulase-positive Staphylococcus, Escherichia coli, Pseudomonas spp., Mycobacterium bovis, Mycobacterium tuberculosis, and Coxiella burnetii using microbiological and biomolecular analyses. The results revealed the detection of Listeria monocytogenes serotype 4b in one sample (1.96%), Bacillus cereus in two samples (3.92%), and Coxiella burnetii in four samples (7.84%). Furthermore, 28 samples (54.9%) exceeded the allowable limit for Escherichia coli counts as per legislation, and 23 samples (45.09%) had coagulase-positive Staphylococcus counts above the microbiological limit specified by Normative Instruction (NI) No. 161. The prevalence of noncompliant samples, as indicated by the legislation, is a disconcerting finding that highlights the potential risks to public health associated with the sale of these cheeses. Consequently, the implementation of more stringent monitoring measures regarding the informal trade of fresh cheeses becomes imperative to mitigate the potential contribution to foodborne illness outbreaks.
ISSN:0101-2061
1678-457X
DOI:10.5327/fst.000381