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SURVIVAL OF SALMONELLAE IN REFRIGERATED, AGITATED WATER AND WATER-GLYCOL MIXTURES.

Author(s) : ZOTTOLA E. A., SMITH L. B.

Type of article: Article

Summary

SURVIVAL OF SALMONELLA TYPHIMURIUM IN REFRIGERATED WATER AND A 30:70 MIXTURE OF ETHYLENE GLYCOL AND WATER WAS STUDIED. WITH WATER AS THE SUSPENDING MEDIUM, THE TEMPERATURE OF THE CIRCULATING WATER WAS 274 K (1 DEG C), AND WITH GLYCOL/WATER MIXTURE, 272 K (-1 DEG C). LOW NUMBERS OF S. TYPHIMURIUM WERE RECOVERED FROM THE COLD WATER FOR 9 DAYS AND FROM THE GLYCOL/WATER MIXTURE FOR 14 DAYS. THE INITIAL POPULATION IN THE WATER WAS 310 CFU/MILLIL AND 630 CFU/MILLIL IN THE GLYCOL/WATER SYSTEM. A PRELIMINARY SURVEY OF THE PRESSURE RELATIONSHIPS IN THE COOLING SECTIONS OF HTST PASTEURIZERS IN 8 FLUID MILK PLANT SHOWED THAT 3 HAD HIGHER PRESSURES ON THE COOLANT SIDE THAN ON THE PASTEURIZED SIDE. SUCH A PRESSURE RELATIONSHIP COULD RESULT IN THE CONTAMINATION OF PASTEURIZED MILK WITH THE COOLING MEDIUM.

Details

  • Original title: SURVIVAL OF SALMONELLAE IN REFRIGERATED, AGITATED WATER AND WATER-GLYCOL MIXTURES.
  • Record ID : 1987-0760
  • Languages: English
  • Source: Journal of Food Protection - vol. 49 - n. 6
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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