Data/hora: 02/06/2024 11:50:55

Provedor de dados: | Brazilian Journal of Microbiology
País: | Brazil
Título: | Yeasts and hygienic-sanitary microbial indicators in water buffalo mozzarella produced and commercialized in Minas Gerais, Brazil
Autores: | Facchin,Susanne; Barbosa,Anne C.; Carmo,Luiz S.; Silva,Maria Crisolita C.; Oliveira,Afonso L.; Morais,Paula B.; Rosa,Carlos A.
Data: | 2013-09-01
Ano: | 2013
Palavras-chave: | Water buffalo mozzarella; Yeast diversity; Opportunistic yeast; Hygienic-sanitary microbial indicators.
Resumo: | The aim of this work was to study the yeast populations and the main hygienic-sanitary microbial indicators in water buffalo mozzarella produced and commercialized in Minas Gerais, Brazil. Forty-two water buffalo mozzarella samples were purchased from retail outlets in Belo Horizonte. In addition, five samples of consecutive starter cultures, curd before acidification, acidified curd and mozzarella were collected at an industry in the city of Oliveira. Only three of the five water samples analyzed were suitable for consumption according to Brazilian sanitary standards. Four milk samples were highly contaminated with fecal coliforms, and did not meet the minimal hygienic-sanitary standards according to Brazilian regulations. Only one sample of buffalo muzzarela purchased from retail outlets exceeded the limit for coagulase-positive Staphylococcus. Eleven samples showed counts of thermotolerant coliforms higher than5x 10³ CFU.g-1, but still lower than the maximum permitted by the Brazilian laws. Salmonella spp. and Listeria monocytogenes were not isolated. Debaryomyces hansenii, Candida lusitaniae and C. parapsilosis were the prevalent yeast species isolated from cheese. Among samples from the production stages, the acidified curd presented the highest numbers of yeasts, with C. catenulata being the most frequent species isolated. Some opportunistic yeast species such as C. guilliermondii, C. tropicalis, C. parapsilosis, C. lusitaniae, C. catenulata, C. rugosa and C. krusei occurred in the mozzarella cheese samples analyzed. The mozzarella cheese presented a low microbial load as compared to other cheese already studied, and the yeast biota included species typical of cheese and also opportunistic pathogens.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300006
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822013000300006
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.44 n.3 2013
Fonte: | info:eu-repo/semantics/openAccess