Packing respiring biological materials with atmosphere control member
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United States of America Patent
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Jan 11, 2000
Grant Date -
N/A
app pub date -
Sep 10, 1997
filing date -
Sep 10, 1997
priority date (Note) -
Expired
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Abstract
Packaging of fruit and vegetables, and other respiring biological materials, makes use of an atmosphere-control member comprising a gas-permeable membrane and an apertured cover member over the membrane. The combination results in a control member having a ratio of CO.sub.2 transmission rate to O.sub.2 transmission rate which is lower than the same ratio for the gas-permeable membrane. This is particularly useful for materials which are preferably stored in an atmosphere containing a relatively high proportion of CO.sub.2.
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