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Bio-protein feed manufacturing method
| Details |
Inventors: Erickson, Lennart G.; Worne, Howard E.;
Assignee:
Primary Examiner: Jones; Raymond N.
Assistant Examiner: Kepplinger; Esther M.
Attorney, Agent or Firm: Townsend and Townsend
A five-step manufacturing method using broad spectrum hydrolytic enzymes to decompose the volatile fraction of organic waste materials into lower molecular weight, intermediate substrate nutrients to be consumed in turn by selected microorganisms to produce a cellular biomass of microbial cells subsequently harvested for use as a bio-protein feed supplement for farm and domestic animals. A wide range of agricultural, industrial and organic waste materials may be used as the input raw material resource for biochemical processing to bio-protein feed. Applied to the use of cattle manure slurry as raw materials, the biolytic decomposition step employs hydrolyzing enzymes to dismutate volatile organic insoluble high molecular weight proteins, starches, fats, and partially hydrolyzed cellulose compounds into soluble, low molecular weight nutrient intermediates in solution, from which the relatively stable cellulose-lignin solid by-product fraction is separated and dewatered. The Cellular Synthesis step uses selected microorganisms which metabolize and convert these nutrient intermediate products, plus oxygen and nitrogen from air, in their growth and proliferation into a biomass of microbial cells. The biomass is separated and utilized as a single cell bio-protein feed supplement for farm animals. The remaining liquid fraction, mainly water and relatively stable organic matter and mineral salts in solution, may be stored for subsequent irrigation and conditioning of agricultural lands and in the interim may be recirculated for feedlot flushing. The solids by-product, mainly cellulose and lignin, may be used as a fuel or biochemical feedstock or may be recombined with the liquid fraction during irrigation discharge to add mulch-fertilizer soil building values. |
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DETAILED DESCRIPTION What is claimed is: 1.
A method for manufacturing a bioprotein animal feed supplement comprising: providing a slurry of raw organic waste containing biochemically volatile and biochemically non-volatile components, converting said biochemically volatile component to water soluble lower molecular weight intermediates essentially by the addition of organism-free hydrolyzing enzymes to said raw organic waste slurry at a temperature of about 60.
degree.
-140.
degree.
F.
, then separating said soluble lower molecular weight intermediates from biochemically non-volatile solids in said waste solution, thereafter combining the separated lower molecular weight intermediates with cell synthesizing microorganisms substantially only under aerobic conditions permitting the microorganisms to feed upon said soluble lower molecular weight intermediates and thereby grow to produce a biomass of single cell microorganisms, and recovering said biomass of cells in a form suitable for use as an animal feed supplement.
2.
A method in accordance with claim 1 wherein said organic waste comprises farm animal manure.
3.
A method in accordance with claim 1 wherein said solution containing said hydrolyzing enzymes is maintained at a temperature of about 100.
degree.
-120.
degree.
F.
4.
A method in accordance with claim 1 wherein said solution containing said synthesizing microorganisms is aerated substantially throughout the growth of said biomass.
5.
A method in accordance with claim 1 wherein said combined lower molecular weight intermediates and cell synthesizing microorganisms are maintained in solution at a pH of about 6.
8 to 7.
2 and at a temperature of about 80.
degree.
-95.
degree.
F.
6.
A method for manufacturing a bioprotein animal feed supplement comprising: collecting the manure waste in a cattle confinement feedlot, reducing the particle size of the collected manure, adding organism-free broad spectrum hydrolyzing enzymes to said manure in an aqueous media and hydrolyzing the protein therein to soluble lower molecular weight intermediates substantially only by the action of said enzymes at a temperature of about 60
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Molecular Biology 
