888 results about "Bioconversion" patented technology

A new polypropylene terephthalate composition is provided. The polypropylene terephthalate is comprised of 1,3-propanediol and terephthalate. The 1,3-propanediol is produced by the bioconversion of a fermentatble carbon source, preferable glucose. The resulting polypropylene terephthalate is distinguished from petrochemically produced polymer on the basis of dual carbon-isotopic fingerprinting which indicates both the source and the age of the carbon.

Methods for solubilizing algae or algal material are provided to facilitate the recovery of oil or lipids, as well as hydrocarbons and carbohydrates, from algae or algal material. The methods involve contacting algae or algal material with an oxoacid ester or thioacid ester of phosphorus or a mixture of an oxoacid of phosphorus and/or an alcohol to form a mixture thereof under conditions effective to solubilize the algae or algal material. These methods optionally further comprise bioconversion of the solubilized algae or algal material to form a composition suitable for recovery of oils and non-oil chemicals.

PCT No. PCT/IL98/00437 Sec. 371 Date Feb. 8, 2000 Sec. 102(e) Date Feb. 8, 2000 PCT Filed Sep. 10, 1998 PCT Pub. No. WO99/12429 PCT Pub. Date Mar. 18, 1999A method of bioconversion of organic industrial or agricultural cellulose containing wastes into proteinaceous product. The method comprises comminution of the wastes with moistening and addition of a starting culture inducing their biological degradation and conversion into simple carbohydrates. The carbohydrates are fermented into digestible products. The starting culture comprises cleaving enzymes produced by edible microorganisms such as fungus and bacteria selected from the group consisting of Ilumicola grisea, Trichoderma harzanum, Ruminococcus albus.

A method of producing fuel from biodegradable carbonaceous material using a stacked particle bioreactor is provided. A stacked particle bioreactor is formed from particles including biodegradable carbonaceous material. The biodegradable carbonaceous material in the stacked particle bioreactor is aerobically and/or anaerobically bioconverted into one or more synfuels, which are collected from the reactor. The synfuels produced by the method may include synthetic petroleum, alcohol, and/or a gaseous fuel containing methane. Preferably the method includes an aerobic biotreatment phase followed by an anaerobic bioconversion phase. A stacked particle bioreactor for carrying out the anaerobic, and preferably aerobic, degradation is also described.

A method for the evaluation, design and optimization of in-situ bioconversion processes for the conversion of carbon to methane and other useful gases and liquids. The method utilizes a comprehensive computer simulation model for accurately simulating the physical and dynamic conditions in a subterranean carbon-bearing formation and the effects of stimulating the growth of indigenous or non-indigenous microbes therein for the bioconverstion of carbon to methane and other useful gases and liquids. The method enables the prediction of bioconversion rates and efficiencies under a range of variables, and thus provides for the optimization of in-situ bioconversion process design and operation.

A method, system, apparatus and program extracts energy from organic residual materials produced by the manufacturing of biofuels. Energy is extracted from the biofuels residuals using anaerobic bioconversion to produce a fuel for use in the manufacturing process for producing synthetic biofuel or as an additional energy product for sale comprises: providing at least one bioconversion tank for conversion of organic waste material, the bioconversion tank containing an active biomass comprising at least one bacteria that decomposes organic material; providing at least one inlet to the bioconversion for organic material; a processor that receives and stores information on: the status of chemical oxygen demand of the active biomass; and the oxygen provision capability of any organic material that can be fed into the bioconversion tank through an inlet; a mass flow control system controlled by the processor which feeds at least one organic material through an inlet at a rate based at least in part upon the status of chemical oxygen demand in the bioconversion tank as recognized by the processor.

A method for processing organic material, in which method bioconversion is performed on the organic material in at least one first reactor, the biogas formed in the bioconversion is treated with ammonia in at least one second reactor and buffer solution produced in the second reactor is recycled to the bioconversion in the first reactor. Thus, the carbon dioxide of the mixed methane/carbon dioxide gas reacts with the ammonia and forms a buffer compound, such as ammonium bicarbonate and/or ammonium carbonate.

The invention discloses a Pleurotus eryngii culture medium and a manufacturing method thereof. The culture medium comprises 75 to 80 percent of cottonseed hulls or wheat straws or straws or corncob, 5 to 12 percent of wheat bran or rice husks, 8 to 10 percent of dry fowl manure, 3 to 8 percent of cornmeal, 1 to 2 percent of hemihydrate gypsum, 0.5 to 1.5 percent of sucrose and 0.5 to 1.5 percent of quicklime, and is added with 0.1 to 0.3 percent of potassium dihydrogen phosphate and 0.1 to 0.2 percent of magnesium sulfate according to the total amount of the compositions, and various compositions are calculated by weight percentage. The cottonseed hulls or the wheat straws or the straws or the corncob and the dry fowl manure are stacked and retted before use; and the culture medium after cultivation of Pleurotus eryngii is subjected to on-the-spot returning treatment. By adoption of the technical proposal, the method can make branched oyster mushrooms organisms well grown, overcome the defect that the prior art has no culture medium specially prepared for branched oyster mushrooms, simplify the production process, shorten the growth period of the Pleurotus eryngii, and improve the bioconversion of the Pleurotus eryngii.

Sterile nanoemulsions are prepared containing oily droplets of a diameter of less than 100 nm in an aqueous phase. The oily droplets contain a lipophilic substance, and have on their surface an amphoteric emulsifier in an amount of preferably 0.65 to 0.75 parts by weight amphoteric emulsifier for one part by weight of oily component forming the droplets. The oily component of the droplets is preferably a triglyceride containing oleic acid and/or linoleic acid. The nanoemulsions are used for delivering into cells the lipophilic substance contained by the oily droplets. This delivery can be used to biotransform the lipophilic substance, promote cell differentiation, growth or biosynthesis of a desired substance, or to test for toxicity of the lipophilic substance.

Acidic metal-bearing wastewaters are treated to produce a finished water of sufficient purity to meet discharge standards while recovering metals removed in forms which are commercially valuable. The metals are selectively precipitated, either in a batch or in a continuous system, for removal of individual metal products in a specific sequence of steps from the wastewater. In each step, the pH is adjusted to the specific pH range and sulfide ion is introduced to precipitate the metals, excepting the removal of ferric iron and aluminum which is achieved using hydroxide precipitation. Bioconversion process using unique equipment converts sulfate in the wastewater to the hydrogen sulfide gas required for the precipitation process. This bioconversion process reduces the sulfate in the wastewater so that the water can be directly discharged or used for agricultural applications.

The invention discloses a corayceps militaris industrial cultivation method. The corayceps militaris is cultivated in an industrial way by strain preparation, blending, bottling, sterilizing, inoculation, culture, germination and collection; fimilar artificial substitute materials are used as the culture materials, which reduce manufacture cost. In addition, the corayceps militaris obtained by the invention has the characteristics of good quality stability and high biological percent conversion, etc.

The invention provides a breeding method of selenium enriched black soldier fly larvae. Inorganic selenium or organic selenium is added into feed of the black soldier fly larvae and the concentration of selenium content in the feed of the black soldier fly larvae is controlled at 10 to 80 mg every kg. The selenium is added into the breeding feed of the black soldier fly larvae to obtain the high selenium content of black soldier fly larva products and accordingly the functional value of the black soldier fly larvae is significantly improved. The selenium is combined with protein and polysaccharide organically in the black soldier fly larvae after bioconversion and accordingly the toxic and side effect and the gastrointestinal stimulation of the chemical selenium are eliminated and the selenium can be absorbed and utilized efficiently and securely.

The invention relates to an edible fungus compost, a production method thereof and an edible fungus culture process. The edible fungus compost disclosed by the invention consists of 40 to 90 parts of residual waste (spent mushroom substrate) left over after the harvest of edible fungi, 5 to 40 parts of cottonseed hulls, 3 to 20 parts of bran, 2 to 8 parts of corn meal, 1 to 2 parts of gypsum powder, 0 to 5 parts of quicklime, 0 to 2 parts of superphosphate and 0.05 to 0.8 parts of fungus-strengthening substance, and the pH value is 6 to 9. The invention adopts the residual waste (spent mushroom substrate) left over after the harvest of edible fungi as main material ingredient to produce the edible fungus compost. By implementing the invention, the residual waste of edible fungi cannot pollute the environment any more, and is made profitable, and the resource can be recycled; an edible fungus material resource is added, the economic burden caused by the shortage and higher prices of edible fungus materials is decreased for edible fungus farmers, the production cost of the method is reduced by more than 50 percent in comparison with the production cost of the conventional method, the yield is increased by 10 to 15 percent, the bioconversion rate reaches 80 to 120 percent, and economic income and social benefit are increased. The method is applicable to a variety of edible fungi.

The bioconversion of gas feedstreams to liquid products by direct contact with a layer of microorganism obtains enhanced productivity through the regular cycling of liquid across a substrate that supports a biolayer of microorganisms while separating the gas and liquid phases. Such processes produce liquid products such as ethanol, butanol and other chemicals from syngas components by contacting CO or a mixture of CO₂ and H₂ with a highly porous side of an asymmetric membrane under anaerobic conditions and transferring these components into contact with microorganisms contained within bio-pores of the membrane. A periodic laving of liquid from the liquid contact side to and away from the microorganisms can increase nutrient flow to the microorganisms while enhancing the recovery of liquid products. The process effects laving by temporarily raising the liquid phase pressure relative to the gas phase pressure to periodically surge liquid toward the microorganisms and then restoring the original pressure differential to urge liquid away from the microorgaisms.

An Intermodal container, also known as an ISO Ocean Freight Container is suitable for the dual purposes of bio-containment and also Intermodal shipping. Provision is made for the introduction of water, oxygen or other liquids or gasses to be treated into the container, for exit of liquids or gasses generated or converted in the container, and for the monitoring of biological processes occurring within the container, all in a liquid impervious container. Improved air ducts and flow paths are provided, while the effects of shrinkage and channeling are reduced, through a strategically placed and relative percentage of openings through the floor. Further improvements in air distribution are achieved by an elimination or substantial reduction in percentage of opening through the floor in areas immediately adjacent to the container side walls. The flooring incorporates a self-cleaning hole design which increases in diameter with increasing distance from the container contents. The increases in diameter may be achieved either through smooth and continuous increases, or through discontinuous increments, though the objective regardless of the approach is to ensure that the holes do not clog either when the container is filled with matter, or when vibrated and jolted during handling and transport.

The present invention relates to a flavoured milk essence. Said flavoured milk essence is made up by using butter as raw material and making it undergo two reaction processes of biological conversion and autothermic cracking. Said invention also provides the concrete operation steps of said two reaction processes.

The invention discloses an in situ biological repairing method of biomass strengthening petroleum -salt-mixed contaminated soil, which is to add biomass degradation agent into biomass, and then the biomass degradation agent is plowed and landfilled under plough horizon, water logging and salt washing are utilized to reduce soil salt content, and then petroleum hydrocarbon degradation bacteria agent is added to degrade petroleum hydrocarbon, The invention utilizes the biomass to interdict capillary salt uprise phenomenon possibly generated; carbohydrate substance generated by biomass degradation can be taken as a good quality carbon source of the petroleum hydrocarbon degradation bacteria agent, so as to accelerate the growth of the petroleum hydrocarbon degradation bacteria agent; lignin generated by the biological degradation can absorb petroleum hydrocarbon pollutant, to prevent being diffused in the water logging and salt washing, bio surfactant generated by microorganism in the petroleum hydrocarbon degradation bacteria agent can accelerate the digestion of the petroleum hydrocarbon pollutant and further be converted into carbon dioxide and water by the petroleum hydrocarbon degradation bacteria agent biology. The efficiency of the degradative petroleum hydrocarbon pollutant of the invention method is high, and the speed is quick.

The present invention pertains to methods for pretreatment of cellulosic biomass for bioconversion into ethanol and other biofuels and wood-based chemicals, recycling of newsprint and other paper products, microfibrillation of cellulose for use as an additive in the food and cosmetic industries, manufacturing improved hardboard, and producing and improved “super” pulp while reducing chemical usage and spent liquor generation. In particular, the instant invention employs supercritical, critical or near critical fluids with and without polar cosolvents [critical fluid, SuperFluids or SFS] for the pretreatment of cellulosic biomass.

Method of bioconversion of coal to methane, carbon dioxide, and other valuable gaseous and liquid products in a multi-step process that may include particle size reduction, separation of non-coal materials, addition of chemicals, and multi-stage anaerobic fermentation are disclosed.

The invention concerns a method for producing dicarboxylic acids (DCA) with long hydrocarbon chains, also called diacids, which consists in culturing a mutant strain of Yarrowia lipolytica obtained by mutagenesis directed and more particularly disrupted at least for the POX2, POX3, POX4 and POX5 genes encoding acyl-CoA oxydase, in a medium consisting essentially of an energetic substrate including at least one carbon source and one nitrogen source and in subjecting said strain to a bioconversion substrate selected among n-alkanes of at least 10 carbon atoms, fatty acids of at least 10 carbon atoms, their alkyl esters and natural oils.