Frozen or freeze-dried product, process and apparatus for produc

Details Frozen or freeze-dried product, process and apparatus for produc Frozen or freeze-dried product, process and apparatus for produc

1998-08-07

2000-08-08

Doerrler, William

Refrigeration

Processes

Treating an article

62 78, 62379, 426444, F25D 2500, F25D 302, F24F 316, A23B 403

Patent

active

060984104

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.

REFERENCES:
patent: 3958031 (1976-05-01), Fleck et al.
patent: 4265921 (1981-05-01), Lermuzeaux
patent: 4428971 (1984-01-01), Havette et al.
patent: 4668561 (1987-05-01), Ney
patent: 5787716 (1998-08-01), Allen

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