Occurrence of coagulase positive - Staphylococci in fresh and cured types Minas cheese sold at open free market of Goiânia-GO / Ocorrência de Staphylococcus coagulase positiva em queijos Minas tipos frescal e padrão comercializados nas feiras-livres de Goiânia-GO
Louise Tadaieski Arruda, Marcele; S. Nicolau, Edmar; P. Reis, Alline; S. Araújo, Aariane; J. Mesquita, Albenones.
R. Inst. Adolfo Lutz;
66(3): 292-298, 2007.
Artigo
em Português
| VETINDEX
| ID: vti-452476
Resumo
Minas cheese is widely consumed in Brazil. This cheese is often made in an inadequate and inaccurately way, which could be a cause foodborne disease, and among these microorganisms Staphylococcus aureus plays a crucial role. This study was performed in order to evaluate the cheese commercialized at open free market in Goiânia-GO concerning the contamination by coagulase positive - Staphylococcus. Eighty-four samples (42 samples of fresh Minas cheese and 42 samples of cured one) were collected from 21 open markets set up in different locations of Goiânia, and to conduct this study the local extension was divided into four quadrants. Cheese samples were analyzed for coagulase positive Staphylococcus counting. The mean values of coagulase positive-Staphylococcus counting were 6.3 x 104; 9.3 x 104; 3.8 x 103 and 5.6 x 104 CFU/g in fresh Minas cheese collected from quadrants I, II, III, and IV , respectively. In cured Minas cheese, the mean values of counting were: 1.8 x 105; 1.3 x 103; 1.3 x 104 and 2.5 x102 CFU/g, in samples collected from quadrants I, II, III e IV, respectively. The mean values for coagulase positive- Staphylococcus counting in cured cheese were higher in samples from quadrants I and III. In conclusion Minas cheese samples commercialized at open market located in Goiânia-GO present high counting of coagulase positive-Staphylococcus, and the occurrence of pathogO queijo Minas, produto largamente consumido no Brasil, por vezes fabricado de forma inadequada, pode causar intoxicações alimentares. Nesses eventos o Staphylococcus aureus desempenha importante papel. Desenvolveu-se este trabalho com objetivo de determinar a ocorrência de Staphylococcus coagulase positivo em queijos comercializados em feiras-livres de Goiânia-GO. Foram analisadas 84 amostras (42 de queijo Minas frescal e 42 de Minas padrão) oriundas de 21 feiras-livres distribuídas pela cidade de Goiânia, cuja extensão foi dividida em quatro quadrantes para sorteio das feiras. As amostras coletadas foram submetidas à análise para contagem de Staphylococcus coagulase positivo. Os valores médios de contaminação por Staphylococcus coagulase positivo de queijos frescais foram: 6,3 x 104; 9,3 x 104; 3,8 x 103 e 5,6 x 104 UFC/g, respectivamente para os quadrantes I, II, III e IV. Para os queijos Minas padrão, os valores médios foram: 1,8 x 105; 1,3 x 103; 1,3 x 104 Os queijos Minas comercializados em feiras livres de Goiânia/GO apresentam elevadas contagens de Staphylococcus coagulase positivo, que podem representar perigo para o consumidor.
Biblioteca responsável:
BR68.1
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