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

The invention relates to a preparation method of a hydrolyzed protein mixture and a protein peptide powder feed additive, wherein a multienzyme complex enzyme method is used for hydrolyzing vegetable protein to prepare the hydrolyzed protein mixture and protein peptide powder. The technology of the method is simple, and a non-starch polysaccharide enzyme and a proteinase are compounded so as to be capable of improving the hydrolyzation rate and degree of protein as well as the utilization rate of feed and reducing the production cost. Products prepared by the preparation method can be used as the feed additive to be capable of significantly improving the laying rate of egg-laying poultry, improving the weight increment of meat poultry, reducing the feed-meat rate and improving the production performance of table poultry as well as reducing the incidence rate of diarrhea in young animals and the feed-meat rate of piggy; and the preparation method is applied to aquatic livestock to be capable of improving the weight increment of fish and reducing the bait coefficient and content viscosity in the intestinal tract.

The invention discloses a method for producing short-chain volatile fatty acids by utilizing kitchen wastes and the short-chain volatile fatty acids. The method specifically comprises the following steps: uniformly mixing and stirring the kitchen wastes serving as a fermentation substrate and sludge serving as an inoculum, thereby obtaining a fermentation matrix; and adding alkyl polyglucosides into the fermentation matrix, and performing anaerobic fermentation under a stirring condition. The reduction, recycling and innocent treatment of the kitchen wastes are realized, and the method has the advantages of low operating cost, high profit, high yield of the short-chain volatile fatty acids and the like.

The invention discloses a method for extracting rapeseed peptides through wet milling combined with an enzymic method. The method comprises the following steps of: taking dry degreased and unshelled rapeseed dregs, grinding and filtering the dry degreased and unshelled rapeseed dregs through a 40-mesh sieve, adding water which is 5 times of the materials in weight, adding 5-10 u / g of cellulase, and performing wet grinding on black soybean meal for 1-3 hours under the condition of a rotating speed in the range from 250 to 400 rpm (revolutions per minute) by using a ball mill to obtain an ultrathin powder turbid liquid; (2) supplementing water to the ultrathin powder turbid liquid until the concentration of the dry materials is in the range from 50 to 100 g / l, adjusting the pH to 7.0, adding 40u / g of protease, maintaining the temperature at 55 DEG C and the pH at 7.0, and hydrolyzing for 1-2 hours; (3) centrifuging the enzymatic hydrolysate for 15 minutes under the condition of 10000 rpm, continuously adding water which is 5-10 times of residues in weight to the residues, adding 20u / g of protease, hydrolyzing for 1-2 hours at the temperature of 55 DEG C and the pH of 7.0, centrifuging, and blending the two supernates to obtain a rough peptide solution. According to the invention, cellulose dissolving causes large-molecular materials such as protein to be hydrolyzed more easily, and also the hydrolysis rate of the protein can be increased; in addition, the conversion rate of the peptides is greatly increased.

This invention relates to a method for promoting sludge to producing organic acid with a surface active agent, which takes the elementary deposition mud, residural sludge or their mixtures of a pollutant water process plant as the raw material to turn the undissolved sludge organics in the mud to organic acid acted by microbials in the mud, the ratio of the volume of the surface active agent and the dry sludge is 0.01: 1-0.3 : 1 and sludge stays for 5 hours ¿C 30 days in the reactor, which reduces volume of sludge and pollution to the environment and uses it as the resource.

The invention belongs to the technical field of environmental protection, and relates to a method for improving short-chain fatty acid produced by excess sludge through hot alkali combined pretreatment. According to the method, the excess sludge in a sewage treatment plant serves as raw material, through hot pretreatment, controlling of initial alkaline power of hydrogen (PH) value conditions and the functions of microorganism is conducted, not only are non-aqueous resolvable organic matters in the sludge promoted to be dissolved and are the non-aqueous resolvable organic matters hydrolyzed to be converted to resolvable organic matters, but also the resolvable organic matters such as protein and polysaccharide are fully converted into the short-chain fatty acid, and pollution of the sludge to the environment is reduced. The temperature of the hot pretreatment is 60-120 DEG C, the time of the hot pretreatment is 15-60min, the initial PH value range of the functions of the microorganism is 8-12, the standing time of the sludge in a reactor is 1-12 days, and the temperature is 30-40 DEG C.

The invention relates to a technique for reducing in-vivo decomposition and release speed of starch, which is characterized by comprising the following steps: pulverizing starch food raw materials into fine powder or directly using starch,, adding a thickener and water, stirring uniformly to form a soft material, putting in a double screw extruder, extruding with a mold to obtain granules, and drying for later use; or drying the soft material, and pulverizing into fine powder for later use. The technique is characterized in that the edible thickener is added into the starch to reconstruct the physical structure of the starch granules, so that the starch decomposition is retarded, and the blood sugar after eating can not increase rapidly but is in a stable state, thereby lowering the postprandial blood sugar, lowering various complications initiated by blood sugar fluctuations after eating, and enhancing the life quality of diabetics.

The method for preparation of hydrolytic enzyme preparation used for improving gas-producing rate of marsh gas fermentation belongs to preparation of supplementary exoenzyme used for marsh gas fermentation. The invention is to provide a method for preparation of hydrolytic enzyme preparation used for improving gas-producing rate of marsh gas fermentation, which has the production bacteria with the following enzymatic vitality index: selecting wheat bran and rice bran as mixed culture medium, obtaining mixed bran seeds by pedigree breed two-stage enlargement culture of the bacteria with solid method, fermenting for 3-4 days at 28 DEG after evenly mixed, sampling and analyzing every enzymatic vitality index, adding commodity enzyme preparation to reach enzymatic vitality index, and airing until the humidity is lower than 5%. The enzymatic vitality index of the prolease in the said mixed bran seeds is not more than 2000+-5% mug tyrosine / g / min. The bacteria can be obtained by bacteria and fungus separated from different environment. The test proves that when hydrolytic enzyme preparation is input into the methane tank fermentation raw materials, the rate of dissolution and degradation of the marsh gas fermentation raw materials can be improve, and the gas-producing rate of marsh gas fermentation, TS and VS gas-production potential and methane content in marsh gas can be increased.

The invention provides a wool product for preventing electric radiation. The wool product comprises 10-20% of wool fiber, 30-40% of modified polyester fiber, 25-35% of silver-coated filament and 15-35% of bamboo pulp fiber, wherein the silver-coated filament is coated with the modified polyester fiber to form core spun yarn, the core spun yarn, the wool fiber and the bamboo pulp fiber are blended to form fabric with a function of preventing the electric radiation. Through the coordination of a manufacturing technology, the wool product which has a high electromagnetic shielding effect, comfortable in handfeel, is suitable for being worn can be obtained.

The invention discloses a joint production technology of hydroxylamine, hydroxylammonium salt and cyclohexanone-oxime. The material comprises the steps that reaction liquid obtained by raw materials through an ammoximation reaction and a hydrooximation reaction is extracted and separated to obtain an organic phase, the organic phase is prepared into product cyclohexanone-oxime, or part of the organic phase and part of product cyclohexanone-oxime are adopted as raw materials for an oxime hydrolysis reaction to be hydrolyzed, the organic phase in hydrolysis liquid is circulated to return to a oximation reactor, part of an inorganic phase in the hydrolysis liquid is adopted as a raw material to be circulated to return to a hydroxylamine oximation reactor, and the other part of the inorganic phase is prepared into a hydroxylamine aqueous solution and hydroxylammonium salt. The joint production technology of hydroxylamine, hydroxylammonium salt and cyclohexanone-oxime is simple in procedure, the requirement of the ammoximation reaction for the purity of the raw material cyclohexanone and the catalyst performance is lowered, a high quality cyclohexanone-oxime product without cyclohexanone is obtained, the simplification of the downstream caprolactam technology and the improvement of the product quality are benefited, and the hydroxylamine and hydroxylammonium salt product which have high additional value are obtained simultaneously.