Food or edible material: processes – compositions – and products – Direct application of electrical or wave energy to food...
Patent
1995-06-07
1996-05-07
Yeung, George
Food or edible material: processes, compositions, and products
Direct application of electrical or wave energy to food...
426244, 426521, A23L 300
Patent
active
055143911
ABSTRACT:
The present invention is directed to methods and apparatuses for preserving fluid foodstuffs. More particularly, it is directed to methods and apparatuses for extending the shelf life of perishable fluid foodstuffs such as dairy products, fruit juices and liquid egg products, which contain significant levels of microorganisms. The improved methods and apparatuses incorporate a plurality of electric field treatment zones with cooling units between each pair of treatment zones in order to maintain the temperature of the pumpable foodstuff at a level at which microorganisms are killed in sufficient numbers and at which changes in the flavor, appearance, odor, or functionality of the foodstuff remain within acceptable ranges. For a comparable microorganism kill, foodstuffs prepared by the present process have significantly higher quality than foodstuffs prepared with standard thermal processes (e.g., ultra-high temperature pasteurization).
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Bushnell Andrew H.
Clark Reginald W.
Dunn Joseph E.
Lloyd Samuel W.
Pure Pulse Technologies
Yeung George
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