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POTASSIUM SORBATE AND RECOVERY OF PECTINOLYTIC PSYCHROTROPHS FROM VACUUM PACKAGED PORK.

Author(s) : MYERS B. R.

Type of article: Article

Summary

30 ROASTS WERE UNINOCULATED AND 30 WERE INOCULATED BY DIPPING IN 1% PEPTONE WATER CONTAINING 100 COLONY-FORMING UNITS PER ML OF PECTINOLYTIC YERSINIA ENTEROCOLITICA. 24 OF THE UNINOCULATED AND INOCULATED ROASTS WERE SPRAYED WITH OR DIPPED IN 5 OR 10% SOLUTIONS OF POTASSIUM SORBATE. ROASTS WERE VACUUM-PACKAGED AND STORED AT 278 K (5 DEG C). AFTER 1 OR 21 D, ROASTS FROM EACH GROUP WERE EXAMINED. COUNTS OF PSYCHROTROPHS OF UNTREATED CONTROLS INCREASED BY NEARLY 3.4 LOG10 AND ON SORBATE-TREATED LEAN SURFACES 2.0 LOG10 . GROWTH AND DIFFERENCES IN COUNTS ON FATTY SURFACES WERE LESS. NUMBERS OF PECTINOLYTIC BACTERIA OF CONTROLS INCREASED BY 2.0 LOG10 AND DID NOT CHANGE SIGNIFICANTLY DURING STORAGE OF SORBATE-TREATED SAMPLES. MOST OF THE PECTINOLYTIC ISOLATES WERE PSYCHROTROPHS, INHIBITION OF THEIR GROWTH BY SORBATE IS OF PARTICULAR IMPORTANCE.

Details

  • Original title: POTASSIUM SORBATE AND RECOVERY OF PECTINOLYTIC PSYCHROTROPHS FROM VACUUM PACKAGED PORK.
  • Record ID : 1984-0617
  • Languages: English
  • Source: Journal of Food Protection - vol. 46 - n. 6
  • Publication date: 1983/06
  • Document available for consultation in the library of the IIR headquarters only.

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