Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Animal derived material is an ingredient other than extract...
Patent
1974-12-31
1977-07-19
Bernstein, Hiram H.
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Animal derived material is an ingredient other than extract...
426807, 426495, 426521, A23K 108, A23K 110
Patent
active
040370020
ABSTRACT:
In the process disclosed herein, paunch manure is treated by sterilizing, mechanically separating the gross solids from the liquid, retaining the solids as animal feed, converting the several acids in the liquids to their various salts, concentrating the residual solids in the neutralized liquids by evaporation to about 80% liquid content then recycling the resulting concentrate through the process or mechanically separating the solids from this concentrate to produce a high nutrient animal feed additive.
It is most important that the final separation of water from the material be accomplished by evaporation. This is because the material contains (1) so many extremely small and microscopic solid particles, and (2) such a large quantity of dissolved ingredients, neither of which can be economically separated from the water content except by evaporation. The liquid effluent from the press contains approximately half of the nutrients in the raw material; however, these nutrients are proteins, carbohydrates, vitamins, amino and other acids and fat, all of which have many times more value per pound than the fiber and other solids removed by the press previous to the concentration and recycling of its liquid effluent. The removal of the gross solids from the material by the press produces a low viscosity effluent, containing only about 5 percent solids, by weight, from which a large volume of water can be evaporated without producing an excessively viscous concentrate. The evaporator has adequate burner capacity and heat transfer surface to provide the necessary B.t.u.'s to evaporate the required water content. The quantity and nature of the ingredients in the effluent, however, requires that the evaporator be provided with scraping blades to eliminate "baking on" of the concentrate on the heat transfer surfaces and good agitation of its content to promote rapid heat penetration therein. Having neutralized the acids in the liquid effluent the steam from the evaporator is non-corrosive, will not pollute the streams or the atmosphere and can reach a pressure of 300 p.s.i. thereby replacing the fuel and water used to develop an equivalent amount of steam by a conventional boiler.
REFERENCES:
patent: 1071218 (1913-08-01), Dyck
patent: 3545977 (1970-12-01), Stahler
patent: 3550524 (1970-12-01), Brumagim
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