Holder Pasteurization
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Thermal Death Kinetics (65°C) of some Mycobacterium bovis spoligotypes recently isolated from bovines / Resistência térmica de diferentes espoligotipos de Mycobacterium bovis à pasteurização lenta (65ºC) em leite experimentalmente inoculado
Milk pasteurization is mandatory in Brazil and the Low Temperature Long Time - LTLT - Pasteurization (62 to 65°C/30 min.) is normally used for cheese making. Permitted parameters were based on the reports of Myconbacterium bovis/tuberculosis inactivation made up to that time. Since then, just a few studies have been done to determine if the M. bovis in circ
Publicado em: 2009
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2. Comparative study between the efficiency of the Mozzarella stretching and the holder pasteurization of milk in the inhibition of the Mycobacterium fortuitum and the Listeria monocytogenes experimentally inoculated into buffalo milk / Estudo comparativo entre a eficiência da filagem da Mozzarella e da pasteurização lenta do leite na inativação do Mycobacterium fortuitum e da Listeria monocytogenes experimentalmente inoculados no leite de búfala
Whole buffalo milk was experimentally contaminated with Mycobacterium fortuitum and Listeria monocytogenes. The quantitative analysis of the agents was made immediately before and after two thermal treatments: pasteurization (of milk) and stretching (of Mozzarella). In the analysis of the Listeria, methodology adapted for the attainment of the MPN was used,
Publicado em: 2008
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3. Effect of fat ratio of whole and skim cow milk on thermal resistance of Mycobacterium fortuitum (NCTC 8573) / Efeito da gordura do leite de vaca sobre o valor D65ºC do Mycobacterium fortuitum (NCTN 8573)
O presente trabalho objetivou avaliar o efeito da gordura do leite bovino na resistência térmica do Mycobacterium fortuitum. Amostras de leite bovino integral e desnatado foram contaminadas com inóculo padronizado de M. fortuitum, atingindo a concentração de aproximadamente 107 UFC/mL de leite, e submetidas à pasteurização lenta (65ºC/30mim.). Foi r
Publicado em: 2006
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4. Efeito da gordura do leite de cabra sobre o valor D65oC do Mycobacterium fortuitum (NCTN 8573) / Effect of fat goat milk on value D65oC of Mycobacterium fortuitum (NCTN 8573)
O presente trabalho objetivou avaliar o efeito da gordura do leite caprino na resistência térmica do Mycobacterium fortuitum. A realização desta pesquisa é motivada pelos seguintes fatos: 1. a pasteurização lenta é amplamente utilizada para o beneficiamento do leite caprino destinado ao consumo e industrialização; 2. o binômio tempo x temperatura
Publicado em: 2006
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5. Inactivation of Mycobacterium paratuberculosis in cows' milk at pasteurization temperatures.
The thermal inactivation of 11 strains of Mycobacterium paratuberculosis at pasteurization temperatures was investigated. Cows' milk inoculated with M. paratuberculosis at two levels (10(7) and 10(4) CFU/ml) was pasteurized in the laboratory by (i) a standard holder method (63.5 degrees C for 30 min) and (ii) a high-temperature, short-time (HTST) method (71.
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6. Heat inactivation of Mycobacterium paratuberculosis in raw milk: are current pasteurization conditions effective?
Currently, it is not known whether commercial pasteurization effectively kills Mycobacterium paratuberculosis in contaminated raw milk. Results from holder test tube experiments indicated that a residual population of viable bacteria remained after treatment at 65, 72, 74, or 76 degrees C for 0 to 30 min. Use of a laboratory-scale pasteurizer unit demonstrat