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INFECTIVITY OF TRICHINELLA SPIRALIS FROM FROZEN PORK.

Author(s) : KOTULA A. W.

Type of article: Article

Summary

THIS RESEARCH WAS CARRIED OUT TO DETERMINE THE TIME/TEMPERATURE EXPOSURE OF TRICHINELLA SPIRALIS TO FREEZING CONDITIONS NECESSARY TO DESTROY THE INFECTIVITY OF THE TRICHINAE. EXPERIMENTALLY INFECTED PORK WAS SUBJECTED TO TEMPERATURES OF 272 TO 80 K (-1 TO -193 DEG C) FOR ONE SEC TO 182 D AND THE TREATED PORK SAMPLES, WHICH CONTAINED ABOUT 1,000 LARVAE PER GRAM OF TISSUE, WERE SUBJECTED TO RAT BIOASSAY TO DETERMINE INFECTIVITY OF THE LARVAE. THE THERMAL DEATH TIMES (+ 7 MIN) AT 253, 258 AND 263 K (-20, -15 AND -10 DEG C) WERE 8 MIN, 64 MIN, AND 4 D, RESPECTIVELY. THE UPPER CONFIDENCE LIMITS (99%) FOR THE THERMAL DEATH TIMES (+ 7 MIN) FOR EXPOSURE AT 253, 258 AND 263 K, WERE 48 MIN, 63 H, AND 266 D, RESPECTIVELY.

Details

  • Original title: INFECTIVITY OF TRICHINELLA SPIRALIS FROM FROZEN PORK.
  • Record ID : 1991-1224
  • Languages: English
  • Source: Journal of Food Protection - vol. 53 - n. 7
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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