Frozen or freeze-dried product, process and apparatus for producing the same
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United States of America Patent
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Aug 8, 2000
Grant Date -
N/A
app pub date -
Aug 7, 1998
filing date -
Nov 19, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus for producing a frozen product or a freeze-dried product therefrom of, in particular, a material susceptible to denaturing due to existing enzymes, oxygen and heat, such as living organisms, organic compounds, vegetables, foods, fruits, drugs, biological samples, fodders and industrial raw materials while preserving the original qualities and properties, by recourse to a technique including the steps of mixing and crushing the material to be processed together with dry ice to thereby attain freezing of the material while replacing of the surrounding atmosphere by the thereby liberated carbon dioxide gas.
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