In order to improve information about the microbiological quality of the milk commercially available in the city of Recife, 250 samples of pasteurized type-C milk and 50 samples of raw milk were analyzed for Yersinia enterocolitica and Listeria monocytogenes and verify the possible occurrence of Yersinia enterocolitica and Listeria monocytogenes. These bacteria can develop in refrigeration temperatures and are responsible for food-born diseases. Neither Y. enterocolitica nor L. monocytogenes were found in the samples analyzed. However, the presence of Y. intermedia and Y. frederiksenii was detected, these environmental species behave as opportunist pathogens. Through the methodology used for Listeria isolation, one isolate of Salmonella Montevideo was obtained from a sample of pasteurized milk and another isolated from one sample of raw milk. Besides these, several other bacteria species were found. It is likely that the large microbiota present in the samples and the procedures employed to destroy it could have hindered the isolation of Y. enterocolitica and L. monocytogenes.
Utilizado como alimento alternativo pela clientela da Pastoral da Criança, o farelo de trigo foi submetido a um estudo de estabilidade sob diferentes condições de armazenamento. O produto, fornecido pelo Moinho Recife - PE, após tamização foi submetido a uma torrefação a ± 95°C e a seguir acondicionado em embalagens diversas: vidro, plástico e papel, sendo armazenados a ± 28 e ± 45ºC. Os resultados das análises químicas e microbiológicas realizadas aos 30 e 60 dias demonstraram que embora a torrefação reduza a contaminação inicial de bolores e leveduras, favorece alterações de ordem química, efeito análogo ao observado no armazenamento a 45°C. Tal constatação, permite concluir que o fator limitante do armazenamento do farelo de trigo sob a forma torrado é a oxidação Lipídica.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.