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Control Indicators for the Examination of Pork for Trichinella spiralis by the Acid-Pepsin Digestion Method

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Artificial digestion using an acidified pepsin solution is one of several methods of examination of meat for the presence of Trichinella spiralis larvae. Indicator devices, which serve as visible 'positive' and 'negative' controls, have been developed for use in this digestion method. The indicators are color-coded, red and blue, modified-collagen membranes. One each of the red and blue colored membranes are added to the solution along with the sample. The digestion of the blue indicator and the retention of the red indicator are established as criteria that the process is within acceptable limits.

Document Type: Research Article

Affiliations: U.S. Department of Agriculture, Food Safety and Inspection Service, Science and Technology, Pathology and Serology Division, Bldg. 318-C, BARC-East, 10300 Baltimore Ave., Beltsville, Maryland 20705-2350

Publication date: February 1, 1994

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