Food spoilage indicator

Details Food spoilage indicator Food spoilage indicator

1978-09-26

1981-08-25

Marantz, Sidney

Chemistry: physical processes

Physical processes

Crystallization

23232R, 2522997, 252408, 422 57, 422 58, 422 86, 422 87, 426 87, 428 1, G01N 3302, G01N 3122, C09K 334

Patent

active

042856973

ABSTRACT:
A food spoilage indicator comprising a liquid crystal disposed in a carrier of plastic tape, at least one portion of which is semi-permeable to gases generated in food spoilage.

REFERENCES:
patent: 2485566 (1940-10-01), Clark
patent: 3067015 (1962-12-01), Lawdermilt
patent: 3585381 (1971-06-01), Hodson
patent: 3927977 (1975-12-01), Jacobs
patent: 4003709 (1977-01-01), Eaton
patent: 4040749 (1977-08-01), David
patent: 4048358 (1977-09-01), Shanks
patent: 4161557 (1979-07-01), Suzuki

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