Time-temperature integrating indicator for monitoring the cookin

Details Time-temperature integrating indicator for monitoring the cookin Time-temperature integrating indicator for monitoring the cookin

1987-03-30

1989-05-30

Petrakes, John

Signals and indicators

Indicators

Chemically activated type

116206, 116216, 374162, 426 88, G01N 3312, G01N 2178, G01K 1112

Patent

active

048340170

ABSTRACT:
A time-temperature integrator based on color changes produced by the chemical reaction between reducing sugars and amino groups (i.e. amino-acids, peptides, proteins) permits the verification of the thermal history during cooking at 85.degree.-100.degree. C. of a hermetically sealed package for inspection and which can not be removed or substituted without breaking the package.

REFERENCES:
patent: 3888631 (1975-06-01), Sturzinger
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patent: 3977945 (1976-08-01), Tornmarck
patent: 3999946 (1976-12-01), Patel et al.
patent: 4382063 (1983-05-01), Romito et al.
patent: 4388332 (1983-06-01), Egee et al.
patent: 4432656 (1984-02-01), Allmendinger
patent: 4459046 (1984-07-01), Spirg
patent: 4533640 (1985-08-01), Shafer
patent: 4601588 (1986-07-01), Takahara et al.
patent: 4643588 (1987-02-01), Postle et al.
patent: 4717710 (1987-01-01), Shimizu et al.

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