Sterilizing method by substituting the dissolved oxygen in milk or the like with nitrogen gas, a product thereof and an apparatus for nitrogen gas substitution
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United States of America Patent
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Sep 10, 2002
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N/A
app pub date -
Sep 8, 2000
filing date -
Sep 9, 1999
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Abstract
An object of the present invention is to reduce the generation of smell by sterilization and to improve the taste in carrying out the sterilization of milk or the like, and the method of the present invention is a method where sterilization is carried out after the dissolved oxygen in milk or the like is substituted with nitrogen gas, and the method is characterized in that a step in which nitrogen gas is directly mixed with and dispersed in milk or the like and a step in which milk or the like with which nitrogen gas is not mixed is sprayed from a nozzle(s) to the top of milk or the like, with and in which nitrogen gas has been mixed and dispersed, stored in a nitrogen gas substituting tank under a nitrogen gas atmosphere, are jointly used whereby the dissolved oxygen amount in the milk or the like is reduced by substitution of the dissolved oxygen with nitrogen gas, followed by subjecting to sterilization.
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