Detection of contaminants in food

Details Detection of contaminants in food Detection of contaminants in food

1998-03-31

1999-02-09

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Process or composition for sterility or package integrity test

422 58, 426 87, 426232, 116206, G01N 3312

Patent

active

058693416

ABSTRACT:
A food contamination detector. The food contamination detector comprises a first bar code symbol coded to identify a food product by a bar code reader, a second bar code symbol coded to identify contaminated food by a bar code reader, and an indicator printed onto a substrate which changes color when food is contaminated and causes the first bar code symbol to be unreadable by a bar code reader and causes the second bar code symbol to become readable by a bar code reader.

REFERENCES:
patent: 2485566 (1949-10-01), Clark
patent: 3067015 (1962-12-01), Lawdermilt
patent: 4285697 (1981-08-01), Neary
patent: 4746616 (1988-05-01), Honigs et al.
patent: 5053339 (1991-10-01), Patel
patent: 5306466 (1994-04-01), Goldsmith

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