Food or edible material: processes – compositions – and products – Packaged or wrapped product – Packaging structure cooperating with food generated gas
Patent
1998-10-08
2000-08-15
Bhat, Nina
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Packaging structure cooperating with food generated gas
426129, 426316, 426319, 426324, 426332, 426396, 426404, 426410, 426415, B65B 5500
Patent
active
061032816
ABSTRACT:
A packaging system and method utilizes a modified atmosphere package including a first package and a second package. The first package includes a non-barrier portion substantially permeable to oxygen, while the second package is substantially impermeable to oxygen. After a food product such as raw meat is placed within the first package, the first package is sealed and then inserted into the second package without sealing the second package so as to create a pocket between the first and second packages. The system and method first employ an oxygen reduction technique such as evacuation, gas flushing, and/or scavenging to quickly reduce the oxygen level in the pocket to a first non-zero level, and then employ an activated oxygen scavenger to further reduce the oxygen level to zero percent after the package is sealed. The oxygen scavenger is activated with an oxygen uptake accelerator to increase the rate at which the oxygen is absorbed. The oxygen scavenger is positioned external to the first package to aggressively absorb any residual oxygen within the pocket and the first package and absorb any oxygen that might seep into the modified atmosphere package.
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patent
DelDuca Gary R.
Deyo Alan E.
Luthra Vinod K.
Wu Wen P.
Bhat Nina
Tenneco Packaging Inc.
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