184results about How to "Increase the rate of hydrolysis" patented technology

The invention discloses a roaster-used milk powder material, which is formed by mixing and blending popping corn, flour, low egg whey powder, soybean oil, glucose, popping soybean pulp, import steam fish meal, plasma protein powder, natural yeast extract, milk substitute powder, calcium carbonate, calcium hydrophosphate, flavouring agent, acidulant, zinc oxide, roaster microelement premix, threonine, diaminocaproic acid, methionine, choline, roaster multivitamin, antioxidant and mildewproof agent. The preparation process comprises: grinding, popping, secondary grinding, measurement burdening, mixing, packaging and the like. The roaster-used milk powder material in the formula has high nutrition level and balanced amino acid, is rich in food attractant, has good palatability and easy digestive absorption, can effectively substitute breast milk and solves the problem of lack of breast milk; in addition, the roaster-used milk powder material has the advantages of promoting the fast development of the intestinal canal, enhancing the disease resistance and diarrhea resistance, leading to the high neatness of the weaning roaster and the like.

The invention discloses a method and device for treating organic solid waste. The method comprises the steps: (a) carrying out physico-chemical pretreatment, namely adding water and additives into the waste, and heating and stirring; (b) carrying out hydrolysis, namely hydrolyzing the waste which is subjected to physico-chemical pretreatment, so as to obtain a hydrolyzate; (c) carrying out oxidization, namely oxidizing the hydrolyzate, so as to obtain an oxidization product; (d) carrying out solid-liquid separation, namely carrying out solid-liquid separation on the oxidization product, so as to obtain a solid oxidization product and a liquid oxidization product; and (e) carrying out activation, namely activating the solid oxidization product in the case of heating, pressurizing, steaming and additive adding, thereby obtaining an activated product.

The invention discloses a self-repairing polyurethane elastomer based on multiple dynamic reversible effects, and a preparation method thereof. The preparation method comprises: uniformly mixing and stirring diisocyanate and polyester diol, adding a catalyst, and carrying out a heating stirring reaction for 3-5 h in an oil bath with a temperature of 60-80 DEG C to obtain a prepolymer; adding a disulfide chain extender into the obtained prepolymer mixed solution, carrying out a heating stirring reaction for 0.5-1 h in an oil bath with a temperature of 60-80 DEG C, and adding a solvent to control the viscosity of the reactant so as to prevent gelling; and adding a cross-linking chain extender, carrying out a reaction, pouring into a mold, standing for 16-24 h at a temperature of 60-80 DEG C,and carrying out curing molding. According to the present invention, the obtained self-repairing polyurethane elastomer has the tensile strength of 23.3 MPa at the optimal self-repairing efficiency of 99%, and can be used as the structural material in the fields of vehicles, medical use, buildings, protective materials and the like.

The invention discloses a method for improving sludge anaerobic fermentation and acid production, belonging to the environmental protection technical field. The method is taken as follows: the residual sludge of municipal sewage plants are used as the raw material, wall breaking action is applied to the microorganisms in the sludge by control of the operating parameters of ultrasonic in order to ensure most of the organic substances in the cells of the microorganisms to be dissolved, lye is added to the sludge to regulate the pH value of the sludge, and the sludge is transformed furthest from the solid phase to the liquid phase and made to produce volatile organic matter under the action of the lye and the microorganisms. The invention further improves the quantity of the organic acid produced from the sludge on the basis of sludge innoxiousness and resource utilization.

The invention belongs to the technical field of environmental protection and relates to a method for improving the methanogenesis of residual sludge by heat and alkali combined pretreatment. According to the method, after the residual sludge is thermally pretreated, the dissolving in water of organic matters such as protein and polysaccharide in the residual sludge can be improved significantly so that abundant water-soluble organic matrixes can be provided for the fermentation of the sludge and the generation of acids; and in addition, after the residual sludge is pretreated under the initial alkaline condition, the dissolving and the dehydrating of the sludge can be promoted further and short chain fatty acids can be produced continuously. Therefore, the residual sludge dehydrating efficiency and the acid generating efficiency can be improved greatly by the combination of thermal pretreatment and the initial alkaline condition so that the yield of methane can be increased to the maximum extent.

The invention discloses a method and device for treating organic solid waste. The method comprises the steps: (a) carrying out physico-chemical pretreatment, namely adding water and additives into the waste, and heating and stirring; (b) carrying out hydrolysis, namely carrying out thermal hydrolysis and acid hydrolysis on the waste which is subjected to physico-chemical pretreatment, so as to obtain a hydrolyzate; (c) carrying out oxidization, namely oxidizing the hydrolyzate, so as to obtain an oxidization product; and (d) carrying out solid-liquid separation namely carrying out solid-liquid separation on the oxidization product, so as to obtain a solid oxidization product and a liquid oxidization product.

The invention discloses a short-chain volatile fatty acid and a preparation method thereof. The preparation method for the short-chain volatile fatty acid comprises the following steps of employing sludge as a fermentation substrate; adding sodium nitrite into the fermentation substrate, performing pretreatment in an acid environment, and performing anaerobic fermentation under an alkaline condition to obtain the short-chain volatile fatty acid. According to the short-chain volatile fatty acid and the preparation method thereof, the sludge of a sewage treatment plant is taken as a raw material, and is jointly treated by virtue of free nitrite pretreatment and alkaline anaerobic fermentation, and the concentration of free nitrite in the system, the pretreatment time, the fermentation pH value and the action of microorganisms in the sludge are controlled to maximally convert undissolved sludge organic matters in the sludge into the short-chain volatile fatty acid, so that the yield of the volatile fatty acid produced from the sludge is further increased on the basis of resourcefully utilizing the sludge and reducing environmental pollution caused by the sludge, and the reaction time is shortened; the short-chain volatile fatty acid and the preparation method thereof have the advantages of high product yield, simple preparation method, energy conservation, consumption reduction, low running cost and the like.

The invention belongs to envrionmental protection technique field, in detail relates to a method for increasing organic aicd output through adding anion surface active agent and controlling basic pH value. It takes primary sludge, excess sludge or mixture of them in wastewater treatment plant, converses organic matter in insoluble sludge to organic acid maximumly by adding anion surface active agent, controlling basic pH and employing bacteria function in said sludge. The ratio between consumption amount of anion surface active agent and sludge dry amount is 0.01: 1- 0.1- 1, the pH is controlled between 8 to 12 for bacteria action, the retention time of sludge in reactor is from 5 hours to 30 days. The invention increases organic acid output when makes full use of sludge and reduces environmental pollution.

The invention provides a production and processing process of intestinal membrane albumen powder. By taking intestinal mucosa of a pig or intestinal residues with heparin extracted as a raw material, the process comprises the following steps: 1) after mixing water and the raw material in a weight ratio of (15-30) to 100, stirring for 30-60 minutes at 35-40 DEG C; 2) adding alkaline protease into the mixture of water and raw material in the step 1) in a weight ratio of (0.05-1):100, heating to 40-60 DEG C, adjusting the pH to 9.0-11.0, and preserving heat and hydrolyzing for 1-4 hours at 40-60 DEG C to obtain a hydrolysate; 3) spray drying or roller drying the hydrolysate to prepare the intestinal membrane albumen powder. The process of preparing the intestinal membrane albumen powder by using a small amount of water and alkaline protease under the alkaline condition has the characteristics of simple operation, short hydrolytic time, energy conservation and environmental protection, small use level of water and alkaline protease, low preparation cost and the like, and can satisfy the requirements on industrialized production on a large scale.

The invention belongs to the field of biogas production through anaerobic fermentation of organic solid wastes and particularly discloses a method for improving the efficiency of methane production through anaerobic fermentation and the methane content in a biogas. CaO2 is added to organic solid waste fermentation raw materials to form a microaerobic environment, thereby improving the efficiency of methane production through anaerobic fermentation and the methane content in the biogas. The method is mainly applied to the field of biogas production through anaerobic fermentation of the organic solid wastes such as straws and manure; the hydrolysis rate of anaerobic fermentation can be improved through adding a little of CaO2 to a reaction system, the methane content in the biogas is increased and the stability of a fermentation system is improved.

The invention discloses a method for preparing mesoporous silica spherical nanoparticles. According to the method, the used template agent refers to cetyl trimethyl ammonium bromide, the alkali source refers to an organic small molecule amine, the silicon source refers to tetraethyl orthosilicate (TEOS), and the organic alcohol salt serves as a promoter. According to the molar composition of the raw materials, a ratio of the silicon source to the cetyl trimethyl ammonium bromide to organic alkali to sodium methylate to water is (1):(0.03-00.06):(0.5-2):(0.001-0.5):(80-500). Accurate synthesis in the particle size range of 25-50nm is realized by regulating the amount of the organic alcohol salt and regulating the nucleation rate of particles. Compared with the prior art, the method disclosed by the invention has the most significant advantage that the hydrolysis and condensation rate of the silicon source is promoted by taking the organic alcohol salt with high nucleophilicity as the promoter. Therefore, the silicon source is subjected to burst nucleation in a very short time, so that the small-size mesoporous silica spherical nanoparticles are prepared. The synthetic method disclosed by the invention is simple, short in cycle, low in cost and high in repeatability and is an environment-friendly green synthetic method.

The invention relates to health food capable of lowering decomposition and absorption speeds of starch in bodies and a preparation method thereof. The preparation method is characterized by comprising the steps of adding vegetable powder to normal starch or a starch composition with different digestion rates and preparing starch particles through inclusion for granulation and drying. The health food has the characteristics that as the vegetable powder is added to the starch and serves as a skeleton, not only is the health food abundant in nutrients, but also slow release skeleton powder or particles can be formed, so that decomposition and absorption of the starch is slowed down and the blood glucose can not rise sharply and is in a steady state after people eats the health food; therefore, the postprandial blood glucose is lowered, the probability of various complications caused by blood glucose fluctuation after eating is lowered, and the quality of life of patients with diabetes mellitus is improved.

The invention relates to bamboo salt food tea and a production method thereof. The production method comprises the following steps of: drying materials such as lotus leaves, hemp fruits, pine needles, and mulberry leaves respectively; powdering the materials to obtain powder; adding bamboo salt into the powder to obtain a mixture; and performing high temperature sterilization on the mixture to prepare powder, tea bags, tablets or candies, or boiling the mixture in water and filtering the mixture to prepare aqueous beverage. Most people have moist, lustrous and firm facial skin, feel vigorous and difficultly feel tired in work, and the hair hardly becomes dry and yellow, whitens or drops off when the people drink the bamboo salt food tea for 1 to 3 months; and the bamboo salt food tea alsohas effects of lowering blood fat, blood pressure, and blood sugar, and has magical effects of curing stomach diseases, nourishing a stomach, and invigorating the stomach for the people who have all kinds of stomach diseases.

The invention relates to a method for processing porous starch through dual-frequency ultrasonic assisted acid hydrolysis, belonging to the field of modified starch processing. The method comprises the steps of: by taking starch (such as corn starch, sweet potato starch, mung bean starch, chickpeas starch and pea starch) as raw materials, preparing starch milk by using a hydrochloric acid solution with a certain concentration, putting the starch milk in a dual-frequency ultrasonic reactor for ultrasonic processing, stirring continuously, stopping ultrasonic after reaction for a certain time, adjusting the pH value to be neutral by using a saturated sodium carbonate solution, repeatedly centrifugal washing, drying, and grinding to obtain a porous starch product. The porous starch provided by the invention has deep and dense pores with uniform pore size, the pore volume accounts for above 70% of the particle volume, and the porous starch is strong in adsorbability, short in production cycle and low in processing cost, and can be widely applied in the fields of foods, medicine and health care, agriculture, paper making, printing, cosmetics, detergents and the like.

The invention provides an aluminum-based composite hydrogen manufacturing material and a preparation method thereof and belongs to the technical field of energy sources. The invention provides a novel aluminum-based composite material with high hydrogen manufacturing velocity, and the novel aluminum-based composite material is manufactured by a mechanical ball milling method; and different aluminum-based raw materials and additives are selected in the manufacturing process, and the reaction activity of products and water is improved by optimizing the content of each component and ball millingconditions. The aluminum-based composite hydrogen manufacturing material manufactured by the preparation method provided by the invention can quickly react with the water to release hydrogen at normal temperature, the initial hydrogen manufacturing velocity is larger than 2,000ml/g.min, and the hydrogen yield is close to a theoretical value. The aluminum-based composite hydrogen manufacturing material can be used for solving the problem of low hydrogen manufacturing velocity at the normal temperature reported at present, the hydrogen manufacturing method is simple and fast, and the products are portable and can supply hydrogen to fuel batteries, movable devices and the like.

The invention discloses a polylactic acid (PLA) composite material with a high degradation speed and a preparation method of the composite material. The composite material provided by the invention isprepared by adopting polylactic acid resin, PBAT resin, an inorganic filler, modified starch, an organic nucleating agent, a coupling agent, a chain extender, a compound photosensitive initiator, a thermal oxygen degradation initiator and a food-grade plasticizer, the heat resistance of the polylactic acid material is improved, and the use range of polylactic acid products is expanded; thermal degradation, photodegradation and hydrolysis speeds of wasted PLA products are increased, harsh conditions that require industrial composting are avoided, and the degradation speed faster than that of ordinary polylactic acid can be realized under natural conditions; the auxiliary agents used in the method are all food-grade raw materials and can be applied to food packaging; and the preparation method of the polylactic acid composite material with the high degradation speed provided by the invention employs simple equipment and is low in investment.

The invention relates to a technology for reducing in-vivo decomposition and absorption speeds of starch. The technology is characterized by comprising the following steps: crushing starch food raw materials into fine powder or directly utilizing the starch; adding a plant extract and preparing into a soft material by suitable amount of water; then putting the soft material into a double-screw extruder, and extruding into grains by a mould; drying for future use; or after drying the soft material, crushing the soft material into fine powder for future use. The technology has the innovations that the plant extract with an alpha-glucosaccharase inhibition effect is added into the starch so that the deposition and the absorption of the starch slow down; after the starch is eaten, the blood glucose is not suddenly raised and is at a balanced state, so that the postprandial blood glucose is reduced, various complications caused by blood glucose fluctuation after the starch is eaten are reduced and the living quality of diabetics is improved.

The invention discloses porous carbon with a uniform nano aperture as well as a preparation method thereof and application. The preparation method comprises the following steps of uniformly mixing ammonia water, ethanol and deionized water to obtain a mixed liquid, dropwise adding ethyl orthosilicate into the mixed liquid to be reacted and dried to obtain a nano spherical SiO2 template; adding the nano spherical SiO2 template into a sugarcane acid solution to be sintered for two times, grinding the solid, and calcining the solid in an inert gas environment for 2 hours to 4 hours; soaking the powder obtained in the calcining for 24 hours to 36 hours, washing the powder by utilizing deionized water to be neutral, and drying the powder to obtain the porous carbon with the uniform nano aperture. The preparation method is simple, the specific surface area of the porous carbon is large, the aperture is uniform, the porous carbon is applicable to the production of microorganisms, the rapid formation of a microorganism fuel cell anode biological membrane can be promoted, and the output power of a microorganism fuel cell can be greatly improved.

The invention discloses a small and medium-sized city household garbage sorting treatment system. The sorting treatment system comprises a household garbage sorting system and a household garbage treatment system; the household garbage treatment system is disposed on the downstream of the household garbage sorting system; the household garbage treatment system comprises an organic matter treatmentsystem, a sewage and waste treatment system and a non-organic regenerant treatment system; and the organic matter treatment system is a pyrohydrolysis-anaerobic fermentation combined system. The small and medium-sized city household garbage sorting treatment system is high in sorting efficiency, low in household garbage treatment cost, high in household garbage recycling ratio, free of secondarypollution and environmentally friendly, the biodegradability of organic wastes is effectively improved, the fertilizing effect and utilization value of fermented biogas residues are improved, and quantity reduction, harmless effect and reclamation of household garbage treatment are achieved.

The invention pertains to the field of food technology, specially relates to a preparation of protein powder. The invention further discloses a preparation of protein powder, which is characterized in adding probiotics into edible protein powder, anaerobic culturing in water medium, and carrying out proteolysis. By adding probiotics capable of generating prolease in the edible protein powder, which substrates or reinforces prolease in the food additives, the invention makes hydrolysis speed of the protein powder greatly increased in a determined period. The method is more convenient and economic then only adding prolease; the obtained protein powder is more abundant in nutrient, and easier for human body absorption.

The invention discloses an acid and alkali combination pretreatment method of straw efficient saccharification, which comprises the following steps that: firstly, raw material slurry consisting of straw particles, inorganic metal salt, inorganic acid and peroxide takes reaction for 1 to 50 minutes at 100 DEG C to 200 DEG C, then, the temperature is reduced, the reaction stops, finally, solid and liquid products are separated, the liquid product is hydrolytic liquid glucose, the solid product is soaked for 1 to 30 hours by alkali solution with the mass concentration being 0.1 percent to 1.5 percent, and solids obtained through solid and liquid separation after the soaking are used as enzymolysis raw materials. The acid and alkali combination pretreatment method is used, the operation flow process is simple, the treatment time is short, the energy consumption is low, the straw utilization rate is high, and the cellulase enzymolysis effect is good.