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Market Quality Research Division, ARS, USDA, Beltsville, Maryland 20705
ABSTRACT
The heat survivor curves at 55, 60, and 62.5 C of 8 Salmonella enteritidis serotypes suspended in commercially sterilized whole milk were generally nonlogarithmic. Extensive tailings of curves were obtained which cannot be described by D values (decimal reduction value at a given temperature). The effect of plating medium and of recovery phenomenon on the maximum survival time indicates that a combination of a Salmonella Survival Test with an F value that would describe tailings of survivor curves might give a more comprehensive description of heat resistance of Salmonella in milk.
1 Present address: Ross Laboratories, 585 Cleveland Avenue, Columbus, Ohio 43216.
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