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Effect of freezing on infectivity of Toxoplasma gondii tissue cysts in pork.

Author(s) : KOTULA A. W., DUBEY J. P., SHARAR A. K., et al.

Type of article: Article

Summary

Pork from infected pigs was mixed with infected mouse brains and homogenized thoroughly. Samples were sealed in plastic pouches, pressed to a uniform thickness and subjected to temperatures of -1 to -171.1 deg C for 1 s to 67.2 d. Treated samples were digested in HCl-pepsin solution and infectivity assayed in mice. Growth of Toxoplasma gondii was studied for different freezing temperatures and various shelf-lives. The resulting data are given. These data demonstrate that T. gondii tissue cysts are inactivated by freezing more readily than encysted Trichinella spiralis larvae.

Details

  • Original title: Effect of freezing on infectivity of Toxoplasma gondii tissue cysts in pork.
  • Record ID : 1993-0313
  • Languages: English
  • Source: Journal of Food Protection - vol. 54 - n. 9
  • Publication date: 1991/09
  • Document available for consultation in the library of the IIR headquarters only.

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