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| Number | Title | Issue Date |
| 6756032 | Method to enhance and/or prolong the effects of a primary challenge to a responsive system with a secondary challenge The present invention relates to a method comprising subjecting a test site of a responsive system to a primary challenge; subjecting the same test site to a secondary challenge, wherein the secondary challenge is designed to enhance and/or prolong a response of the... | 06/29/2004 |
| 6676840 | Fat and protein removal from process streams The precipitation and removal of suspended fat and protein components and other suspended solids from a given solution can be accomplished by the addition of an aluminate to complex with the fat and protein components and the addition of a flocculating ag... | 01/13/2004 |
| 6372145 | Fat and protein removal from process streams The precipitation and removal of suspended fat and protein components and other suspended solids from a given solution can be accomplished by the addition of an aluminate to complex with the fat and protein components and the addition of a flocculating ag... | 04/16/2002 |
| 6113800 | Treatment process for recovering components of a float material from waste water A treatment process for recovering protein, fatty and water component products from a float material produced by a waste water treatment system, wherein the protein and fatty components possess improved stability and are suitable for further processing fo... | 09/05/2000 |
| 5958248 | Method of precipitating protein at the time of removal of heavy metals A method and a system which enable simple and inexpensive removal of heavy metals from a heavy-metal-containing substance. In this method, a substance containing heavy metals and water are introduced into a mixing bath in proportions by weight of 1:3 to 1... | 09/28/1999 |
| 5772968 | Apparatus and method for hydrolyzing keratinaceous material A hydrolyzer system, apparatus, and method for effecting the continuous conversion of offal, feathers, hair, and other keratinaceous material into usable protein products for further commercial usage. The hydrolyzer system includes a feed screw conveyor, ... | 06/30/1998 |
| 4665158 | Method for hydrolyzing protein materials Dehydrated protein materials are treated with gaseous HCl without temperature control, the reaction temperature being susceptible to reach, momentarily, 150° C. Then the material thus treated is degassed and, after drying, a non hygroscopic powder usable... | 05/12/1987 |
| 4629785 | Extraction of nutritious materials from acidic sludge waste solids by adsorption Nutritious materials, including proteins, are separated from acidic waste-activated sludge in a process which comprises: (A) converting by physical means active bacteria in said sludge to an inactive form; (B) subjecting the acidic sludge to an adsorbent mater... | 12/16/1986 |
| 4536207 | Nematocidally active chitin-protein complex A chitin-protein complex is prepared from chitin-containing biological waste material such as crustacean shells. The complex is different from both chitin and chitosan, and has useful nematostatic and nematocidal activity for agricultural and horticultura... | 08/20/1985 |
| 4483829 | Process for recovering proteins and chromium from chrome-tanning waste Waste products from the chrome-tanning of hides are washed and then chopped in water, with subsequent hydrolyzation at a pH of at least 10.5 and at boiling or near-boiling temperature. The resulting suspension is filtered to yield a polypeptide solution a... | 11/20/1984 |
| 4421682 | Heating of proteinaceous liquids A method of raising the temperature of a liquid containing heat coagulable proteins above the coagulation temperature of the proteins to coagulate them using a heat exchanger to transfer heat from the heat source to the liquid without contact between the ... | 12/20/1983 |
| 4389423 | Process for the production of powdered protein materials from animal raw material Two powdered protein products are produced from animal raw material of varying composition, in particular offal from bacon factories and cattle slaughterhouses. The offal is heat treated and separated mechanically into a fluid phase and a solid phase, whi... | 06/21/1983 |
| 4374063 | Process for the preparation and purification of gelatin and pyrogen-free gelatin so prepared A process of preparing an essentially pyrogen-free gelatin solution from cattle hides and/or tanner's stock is described. The essentially pyrogen-free gelatin solution and the use of the pyrogen-free gelatin solution for various pharmaceutical, surgical a... | 02/15/1983 |
| 4359530 | Protein extraction from green crops A method of extracting protein from green crops such as leaves, grasses, legumes, stems of green plants and tree leaves is disclosed. The method comprises the steps of subjecting the green crops to a pulping action in an acid solution recirculated from a ... | 11/16/1982 |
| 4271028 | Process for purifying effluents containing proteins A process for purifying effluents which contain proteins, which process comprises treating said effluents with a basic polymer compound and separating the flocks that are formed from the effluent.... | 06/02/1981 |
| 4269865 | Process for the production of a food product from feathers A process for the conversion of feathers into a foodstuff is disclosed wherein moistened feathers are subjected to an elevated temperature and a pressure of 15-40 psig without agitation to form a pulpy mass of the feathers. The pulpy mass of feathers is t... | 05/26/1981 |
| 4256630 | Activated sludge treatment The method of treating an activated sludge to facilitate dewatering thereof comprising the steps of acidifying the sludge to a pH below about 2.2, heating the acidified sludge to a temperature of from about 150° to 210° F. and maintaining the sludge at ... | 03/17/1981 |
| 4208282 | Process for the purification of sewage while recapturing the fatty and albuminous matter in reusable form There is disclosed a process for the purification of sewage containing fatty and albuminous matter. Raw sewage, which is optionally subjected to primary settling in a primary settling tank, is adjusted so that the pH is approximately the same as the isoel... | 06/17/1980 |
| 4203892 | Method of protecting proteins for animal feed Proteinaceous feed material is contacted with certain compounds to render it more suitable for ruminant animals. The so-treated proteinaceous material is resistant to degradation in the rumen of the animals but is readily degraded and digested in the inte... | 05/20/1980 |
| 4199496 | Process for the recovery of chemicals from the shells of crustacea A process is described for extraction and recovery of chemicals from the shell of various crustacea species. Significant features of the process are determination and use of conditions for extraction which are sufficient to liberate protein from its combi... | 04/22/1980 |
| 4180499 | Carcinoembryonic antigens Antigens associated with carcinomas and adenocarcinomas as well as methods for isolating, identifying and detecting them are disclosed.... | 12/25/1979 |
| 4163009 | Method of separating animal raw material To separate animal raw material into fat and protein fractions, the material in finely divided form is circulated through a circuit which includes a heating zone where the material is continuously heated to a relatively low temperature of about 45°-70° ... | 07/31/1979 |
| 4154676 | Ion exchange process using activated regenerated cellulose An ion exchange process is characterized by the use of an ion exchange cellulose made by reacting unregenerated cellulose with a monomeric substance having at least one ionizable chemical group which imparts ion exchange properties to the cellulose reacti... | 05/15/1979 |
| 4137335 | Recovery of fat and meat meal from animal raw material Animal raw material is boiled at least mainly by indirect heating and then divided into stick water and solids, the solids being separately dried to form a first meat meal fraction. The stick water, preferably after separating a sludge component and a fat... | 01/30/1979 |
| 4123426 | Process for decomposing microbial cells Foamable hydrolyzed proteins substantially free from lipid, nucleic acids, and nucleic acid related substances are obtained by decomposing microbial cells with an alkaline aqueous solution containing an alkaline earth metal hydroxide and an alkali metal h... | 10/31/1978 |
| 4119495 | Method for processing activated sludge into useful products A method for processing activated sludge into useful products comprises hydrolysis of activated sludge at a pH of 0.01 to 6.0 at a temperature of 50° to 150° C with subsequent separation of formed water-soluble protein, carbohydrate and mineral substanc... | 10/10/1978 |
| 4117175 | Process for recovering nutrients from cattle manure Shredded manure is soaked in an excess of water to form a basic slurry which is then separated in a centrifugal separator. The liquid portion is added to a floc tank where a suitable flocculant precipitates proteins which upon passing through a vacuum fil... | 09/26/1978 |
| 4111803 | Process for recovering proteinaceous matter from acid whey and tannery unhairing effluents Tannery unhairing waste and acid whey are mixed in proportions containing from 20 to 40% by volume of the tannery waste to spontaneously precipitate proteinaceous matter from both waste effluents and leave a relatively clean supernatant liquid. When the m... | 09/05/1978 |
| 4104161 | Method for treating aqueous wastes containing at least 1% proteinaceous matter A method for treating aqueous wastes containing at least 1% proteinaceous matter with at least 0.20% by weight of cationic water-soluble polyamines. Preferred polyamines include ethylene dichloride-ammonia, quaternary ethylene dichloride-ammonia and dimet... | 08/01/1978 |
| 4100154 | Process for recovery and separation of nutritious protein hydrolysate and chromium from chrome leather scrap Nutritious water soluble protein hydrolysate having an average molecular weight between about 1500 and 10,000 is obtained by heating to at least about 200° F a mixture of, by weight: 100 parts chrome leather scrap; at least 100 parts water; and at least ... | 07/11/1978 |
| 4100149 | Method of separating proteins by ion exchange A method of separating proteins by ion exchange comprising putting a solution of proteins into contact with an ion exchange resin consisting of a porous inorganic carrier coated with a cross-linked polymer containing or carrying anion exchanging groups --... | 07/11/1978 |
| 4085044 | Treatment of lime-sulfide tannery unhairing waste Improvements in the treatment of lime-sulfide unhairing wastes from both salt-cured and unsalted hides are provided. After undissolved lime is flocculated out of the waste of a salt-cured hide and the supernatant acidified to liberate hydrogen sulfide, th... | 04/18/1978 |
| 4080262 | Stabilizing agent for enzymes Enzymes, particularly labile enzymes, and most particularly microorganism derived labile enzymes, are stabilized by adding thereto a stabilizing agent comprising a protein fraction obtained by extracting yeast with water at 80° to 100° C., mixing the cl... | 03/21/1978 |
| 4072606 | Method for coagulating a colloidal suspension Water-soluble polymers that thicken reversibly in aqueous solution on alteration of the degree of alkalinity are manufactured by treating an aqueous suspension of protein with the enzymes elaborated extracellularly by a species of the genus Pseudomonas. T... | 02/07/1978 |
| 4061568 | Method for recovering and stabilizing fat and fatty substances as well as proteins and proteinous substances from process water The invention according to the present patent application relates to a method for recovering substances from fat processing industry such as fat refining plants, margarine industry and other food industries, whereby a water purifying effect is achieved as... | 12/06/1977 |
| 4059572 | Mucopolysaccharide having flocculating activity of protein and method for producing the same Microorganisms of the genus Aspergillus produce mucopolysaccharides having flocculating activity for protein.... | 11/22/1977 |
| 3985722 | Process for preparing N-higher aliphatic acyl derivatives of amino acids, peptides or proteins A mixed acid anhydride consisting of higher fatty acid having 6 to 22 carbon atoms and sulfuric anhydride is reacted with amino acids, peptides or proteins in the presence of a base to form N-higher aliphatic acyl derivatives of amino acids, peptides or p... | 10/12/1976 |
| 3974069 | Process for the dehydration of fatty sludge and the recovery of chemicals A process is disclosed for concentrating a fatty sludge precipitated from a fatty and proteinaceous aqueous emulsion by successive addition of hydrolyzable metals salts and alkaline earth salts thereto and subsequently separated from the aqueous portion o... | 08/10/1976 |
| 3969336 | Method of separating and recovering soluble proteins from protein containing solutions employing foam fractionation Disclosed is a method for separating and recovering soluble proteins from protein containing solutions employing foam fractionation. In the method, air is introduced as small bubbles into a pool of protein containing solution retained within a vessel, to ... | 07/13/1976 |
| 3936375 | Process for dewatering a proteinaceous, aqueous sludge and for removing and recovering precipitating agents from a precipitate containing proteinaceous substances A proteinaceous aqueous sludge, previously precipitated with a precipitating agent, is mixed with calcium chloride, and treated with a base selected from the group consisting of alkali metal hydroxides and alkaline earth metal hydroxides to adjust the pH ... | 02/03/1976 |
