METHOD FOR STERILIZING SEALED AND PACKAGED FOOD USING ATMOSPHERIC-PRESSURE PLASMA, AND SEALED AND PACKAGED FOOD PREPARED THEREBY
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United States of America Patent
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Issued Date -
Jun 4, 2015
app pub date -
Jul 13, 2012
filing date -
Jun 7, 2012
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Abstract
The present disclosure relates to a method for sterilizing sealed and packaged food using atmospheric-pressure plasma and sealed and packaged food prepared thereby. The method includes: seal packaging food by injecting a gas containing 10 vol % or more of oxygen, carbon dioxide or a mixture gas thereof based on the total gas into a plastic packaging material containing the food or vacuum packing food in a plastic packaging material; and treating the packaged food with direct atmospheric-pressure plasma, thereby allowing food which cannot be heat-treated, such as fresh food, to be sterilized and allowing food to be sterilized even when polyethylene, polypropylene, nylon or polyethylene terephthalate through which plasma cannot pass is used as a food packaging material.
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