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Utilization of horse plasma in coagulase test for Staphylococci isolated from r...
Silva, Luiz Henrique Cabral da; Monteiro, Alexandre Amorim; Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Nero, Luís AugustoStaphylococci are frequently related to food poisoning outbreaks that are caused by their enterotoxins. The enterotoxins production is highly correlated to coagulase production, which one is detected in identification of pathogenic strains. Usually the coagulase test is conducted using lyophilized rabbit plasma, or even fresh rabbit blood, separated by sedimentation. The lyophilized plasma has high costs and th...
Milk contamination in different points of the dairy process. ii) mesophilic, ps...
Santana, Elsa Helena Walter de; Beloti, Vanerli; Müller, Ernest Eckehardt; Ferreira, Márcia de Aguiar; Moraes, Luciane Bilia de; Pereira, Mykel StepanniPsychrotrophics microorganisms are able to multiply under refrigeration temperatures. They can produce heat-resistant extracellular enzymes that cause organoleptic and structural changes in milk and dairy products. With the objective of determining the frequency of microorganisms in the dairy process, four farms were evaluated in Londrina city – Brazil and different points were assessed. Mesophilic (48hs at 35o...
Milk contamination in different points of the process: I) Aerobic mesophilics a...
Santana, Elsa Helena Walter de; Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Moraes, Luciane Bilia de; Gusmão, Viviane VieiraTo improve the microbiology quality of the milk produced in Brazil, steps like the refrigeration have been implanted in the dairy sector but, temperatures of 4oC are selective for psycrotrophics microorganisms. These microorganisms, irrespective of their optimum growth temperature, are able to multiply in refrigeration temperature and produce heat-resistant extra celular enzymes that can cause changes, especial...