Foods and beverages: apparatus – Subjecting food to an enclosed modified atmosphere – Automatic control or time means
Patent
1994-12-15
1997-03-11
Simone, Timothy F.
Foods and beverages: apparatus
Subjecting food to an enclosed modified atmosphere
Automatic control or time means
99325, 99486, 4352891, 4352911, A01F 2500, F25B 4100
Patent
active
056090960
ABSTRACT:
A vegetable freshness sensor production method and a freshness keeping device using the sensor are disclosed. The sensor senses gases generated by vegetables, thus to not only sense freshness of the vegetables but also sense decayed state of the vegetables. The vegetable freshness keeping device appropriately controls temperature, pressure, humidity, O.sub.2 /CO.sub.2 and quantity of anion in the vegetable store room in accordance with sensing result of the sensor, thus to keep freshness of the vegetables for a long time. In order to produce the gas sensor, a mixture of a metal catalyst and a sensing material is calcinated and mixed with an organic vehicle, thus to form a paste. The paste is coated on an electrode surface of an alumina substrate, thus to form a sensing layer on the substrate. The substrate, after being sintered, is subjected to a wire bonding and to a packaging, thus to form the gas sensor.
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Hong Hyung-Ki
Kim Sung T.
Kwon Chul H.
Lee Kyu C.
Park Hyeon S.
Goldstar Co. Ltd.
Simone Timothy F.
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