The destruction of Salmonella typhimurium in chicken exudate by different freeze-thaw treatments.

Antibacterial treatments for frozen poultry, including holding at -5 degrees C and slow thawing at 4 degrees C to which exponential phase cells of Salmonella typhimurium were susceptible, were found to be relatively ineffective against stationary phase cells. Exposure of the latter, however, to a pre-freezing triple stress treatment of cold-shock exposure at 5 degrees C to a solution containing 5 mg/l of free available chlorine in 1% succinic acid (pH 2.5) for 20 min substantially lowered the resistance of the cells to subsequent freezing, storage and thawing in poultry flesh exudate. Cell survival was further decreased by storage of exudate at -18 degrees C for 28 d and this reduced the proportion of stationary phase cells to less than 1% of initial numbers, with a concomitant increase in sensitivity to deoxycholate. Such a combined pre-treatment may have practical potential for salmonella decontamination in the production of frozen poultry.

[1]  B. Swaminathan,et al.  Reduction of Numbers of Salmonella typhimurium on Poultry Parts by Repeated Freeze‐Thaw Treatments , 1981 .

[2]  B. Swaminathan,et al.  Effect of five cycle rapid freeze-thaw treatment in conjunction with various chemicals for the reduction of Salmonella typhimurium. , 1981, Poultry science.

[3]  C. Rigby,et al.  Changes in the Salmonella status of broiler chickens subjected to simulated shipping conditions. , 1980, Canadian journal of comparative medicine : Revue canadienne de medecine comparee.

[4]  H. Lior,et al.  Flock infection and transport as sources of salmonellae in broiler chickens and carcasses. , 1980, Canadian journal of comparative medicine : Revue canadienne de medecine comparee.

[5]  M. Takano,et al.  BACTERICIDAL EFFECT OF FREEZING WITH CHEMICAL AGENTS , 1979 .

[6]  A. A. Kraft,et al.  EFFECT OF SPIN CHILLING AND FREEZING ON BACTERIA ON COMMERCIALLY PROCESSED TURKEYS , 1978 .

[7]  D. Mossel.  THE ELIMINATION OF ENTERIC BACTERIAL PATHOGENS FROM FOOD AND FEED OF ANIMAL ORIGIN BY GAMMA IRRADIATION WITH PARTICULAR REFERENCE TO SALMONELLA RADICIDATION1 , 1977 .

[8]  R. D. Foster,et al.  Effect of temperature and added polyphosphate on the survival of salmonellae in poultry meat during cold storage. , 1976, The Journal of applied bacteriology.

[9]  J. E. Thomson,et al.  Chlorine, Acid, and Heat Treatments to Eliminate Salmonella on Broiler Carcasses , 1976 .

[10]  R. Farías,et al.  Chilling cells enhances the bactericidal action of fatty acids on Escherichia coli , 1976, Applied and environmental microbiology.

[11]  S. Notermans,et al.  Studies on the estimation of the hygienic condition of frozen broiler chickens , 1976, Journal of Hygiene.

[12]  R. Parry,et al.  The effectiveness of in-plant chlorination in poultry processing. , 1975, British poultry science.

[13]  J. Thompson,et al.  A HOT ACID TREATMENT FOR ELIMINATING SALMONELLA FROM CHICKEN MEAT , 1974 .

[14]  J. V. Spencer,et al.  Effect of certain freezing methods upon microbes associated with chicken meat. , 1974, Poultry science.

[15]  M. Speck,et al.  Freeze-injury in bacteria. , 1973, CRC critical reviews in clinical laboratory sciences.

[16]  G. Mead,et al.  Factors affecting the use of chlorine in the spin‐chilling of eviscerated poultry , 1973 .

[17]  F. Busta,et al.  Effect of Rehydration on Recovery, Repair, and Growth of Injured Freeze-Dried Salmonella anatum , 1971, Applied microbiology.

[18]  J. Wells,et al.  Salmonella contamination in a poultry-processing plant. , 1970, Applied microbiology.

[19]  E. Idziak,et al.  Radiation Treatment of Foods , 1970 .

[20]  C. J. Wabeck,et al.  Salmonella and total count reduction in poultry treated with sodium hypochlorite solutions. , 1968, Poultry science.

[21]  E. Idziak,et al.  Radiation treatment of foods. I. Radurization of fresh eviscerated poultry. , 1968, Applied microbiology.

[22]  G. J. Banwart,et al.  Effect of Postchill Washing on Bacterial Counts of Broiler Chickens , 1967 .

[23]  G. Mountney,et al.  ACIDS AS POULTRY MEAT PRESERVATIVES. , 1965, Poultry science.

[24]  R. Forsythe,et al.  Effect of Method of Freezing on Survival of Microorganisms on Turkey , 1963 .

[25]  G. Borgstrom.  Microbiological problems of frozen food products , 1955 .

[26]  J. O. Irwin,et al.  The estimation of the bactericidal power of the blood , 1938, Epidemiology and Infection.