Foods and beverages: apparatus – Non-cooking heat treatment of food
Patent
1991-10-01
1992-05-19
Simone, Timothy F.
Foods and beverages: apparatus
Non-cooking heat treatment of food
99484, 99485, 99495, 99516, 241 65, A23L 131, A23J 102, A23J 300, C07K 302
Patent
active
051137550
ABSTRACT:
A particulate proteinaceous product and methods for producing the same from waste raw animal parts are disclosed. The product is dry to the touch, is compressible into pellets or cakes, and comprises about 45 to 65 w/w percent partially hydrolyzed, non-denatured animal protein, about 20-35 w/w percent oil derived from the animal parts, about 10-15 w/w percent moisture, and about 0-7 w/w percent ash. The product also has less objectionable odor, less propensity to oxidize, and higher nutritional value than existing products. The method comprises a mulling stage wherein the raw animal parts are reduced to a ground condition; a hydrolyzing stage wherein proteins in the ground animal parts are hydrolyzed to a predetermined extent to form an aqueous suspension, using either endogenous or supplementary proteolytic enzymes, and subsequently heated to inactivate the enzymes and convert fats in the suspension to oils; a screening stage wherein non-digestible solids are removed from the suspension; a concentration stage wherein extraneous oil is added to the suspension, the suspension is pasteurized, and a large portion of the water is removed therefrom; and an oil-separation stage wherein sufficient oil is removed to form the product. A portion of the removed oil is routed back to the beginning of the concentration stage as extraneous oil added to the suspension to permit sufficient water to be removed from the suspension without forming a stiff, unprocessable mass. The method is distinctive in that it produces a dry, flaky product without the use of a conventional dryer. The method is also distinctive for its substantial resistance to equipment clogging.
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Anderson Paul S.
Law Roger W.
Law Ronald R.
Lum Kenneth
Advanced Hydrolyzing Systems, Inc.
Simone Timothy F.
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