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US 8,563,067 B2Granted
Extended shelf life and bulk transport of perishable organic liquids with low pressure carbon dioxide
AssigneeCornell Research Foundation, Inc.
InventorsRichard Hagemeyer, Joseph H. Hotchkiss
Life of this patent
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Abstract
Carbon dioxide is dissolved in liquid dairy products loaded and transported in bulk containers so as to improve product shelf life, thereby providing options for more economical shipment, as by rail and ocean vessels and for extended transport by truck and to facilitate extended storage of perishable products and to avoid the necessity of multiple treatments for pathogen reduction.
Claims17
A process to inhibit the growth of microorganisms in raw milk comprising:
- (a) adding carbon dioxide (CO2) to the raw milk to obtain a CO2 concentration of at least about 200 parts per million;
- (b) placing the CO2 enhanced raw milk in a vessel and maintaining a CO2 concentration of at least about 200 parts per million without subjecting the raw milk to undesirable biological changes;
- (c) releasing the CO2 from the raw milk;
- (d) processing the raw milk;
- and
- (e) packaging the processed milk for distribution.
3 more elements
A method of transporting raw milk comprising the steps of:
- (a) filling a bulk pressure vessel at a first location with raw milk mixed with CO2 at a first location to achieve a CO2 concentration between about 200 and 2400 parts per million;
- (b) maintaining the raw milk mixed with CO2 in the pressure vessel at a CO2 head pressure of at least 68 kPa during transportation by at least one of truck, rail and ship to a second location;
- (c) removing the CO2 from the raw milk using a process comprising at least one of agitation, vacuum and negative pressure, all such that the raw milk product does not sustain undesirable biological changes;
- (d) processing the raw milk and packaging the processed product.
1 more element
Dependencies are inferred from the claim text.