121 results about "Cottonseed" patented technology

The invention provides a tobacco leaf nitrogen efficient sesame cake fertilizer and a preparation method thereof, and relates to the field of fertilizers. The nitrogen efficient sesame cake fertilizer for tobacco leaves comprises a solid material and water, the solid material comprises the following raw materials in percentage by mass: 60%-70% of sesame cake, 6%-8% of cottonseed cake, 12%-26% of rice husk and 8%-10% of polyaspartic acid, wherein the total mass of the raw materials is 100%. The nitrogen efficient sesame cake fertilizer for the tobacco leaves can effectively improve the quality of the tobacco leaves, improve the growth vigor of the tobacco leaves and improve the hacking degree of flue-cured tobacco leaves to a certain extent, and the cottonseed cake is added due to the fact that gossypol with a bactericidal effect is contained in the cottonseed cake, and the occurrence of soil diseases can be relieved or inhibited.

According to the cottonseed-based natural ester oil insulation transformer box body, a capsule oil conservator is installed at one end of the top of the transformer box body, is filled with cottonseed-based natural ester insulating oil and is communicated with heat dissipation oil in the inner space of the box body through a pipeline; the other end of the box body is provided with an on-load tap-changer; a plurality of finned radiators are respectively mounted on the left and right sides of the box body, and oil pipes of the finned radiators are connected with the interior of the transformer box body to form heat-conducting oil circulation heat dissipation; an oil surface temperature controller and a winding temperature controller are mounted at the end part of the box body; a gas relay and a pressure relief valve are mounted at the top of the box body; an oil drain valve, an oil sample valve and a grounding bolt are installed at the bottom of the box body. The capsule oil conservator has the beneficial effects that the capsule oil conservator can be used for supplementing lost heat-conducting oil into the transformer box body or guiding redundant heat-conducting oil into the capsule oil conservator. The on-load tap-changer can adjust the gear of the winding in the transformer box body; and the heat-conducting oil of the radiator is connected with the heat-conducting oil in the transformer box body to form heat-conducting oil circulating heat dissipation.

The utility model relates to cottonseed high protein production and processing technical field, especially a kind of cottonseed high protein production shell in cotton kernel recycling device. The device contains bending shell (1), bending shell (1) top is air port connecting flange (8), bending shell (1) top contains a rectangular feed slot (7) of inclined arrangement;The mouth on rectangular feed slot (7) can enter material;Air port connecting flange (8) can connect suction force providing structure. Advantageous effects: by the above technical scheme, the utility model can effectively reduce the content of small cottonseed and cotton kernel in cotton shell, improve the quality and yield of cottonseed white egg, reduce resource waste and improve enterprise economic efficiency.

This invention provides a device for collecting and recovering solid droplets from cottonseed protein that has undergone dephenolization, relating to the field of cottonseed protein production and recovery technology. The device includes: a shell; a free gas outlet is installed through one side of the top of the shell; a cleaning port is installed through the other side of the top of the shell; a free gas inlet is connected through one side of the bottom of the shell; and a collection liquid conveying mechanism is provided inside the shell. The collection liquid conveying mechanism includes a collection liquid inlet, an upper collection liquid guide plate, a middle collection liquid guide plate, a lower collection liquid guide plate, and a collection liquid outlet. This invention, through the structural cooperation between the multi-layer guide plate within the collection liquid conveying mechanism and the shell, effectively achieves efficient separation and recovery of solid droplets in the cottonseed protein collection liquid, reducing production costs. The device has a simple structure, is easy to operate, reduces the labor intensity of operators, and has low energy consumption during operation, meeting the environmental protection requirements of energy conservation and emission reduction.

The present application relates to the technical field of modified asphalt, and relates to cottonseed biological oil pre-desulfurization rubber powder modified asphalt and a preparation method thereof, wherein cottonseed oil residues containing unsaturated fatty acids are used to pre-swelling desulfurization of waste rubber powder, a three-dimensional cross-linking network of the rubber powder is effectively destroyed, functional group reconstruction is promoted, the compatibility and interface physical embedding of the rubber powder and base asphalt are improved, and the problem of easy delamination is overcome; the lubricating and diluting effects of the biological oil can reduce the tackifying effect of the rubber powder and reduce the structural viscosity of the modified system; the swelling rubber powder forms a dense elastic network in the matrix, which not only retains strong high-temperature anti-rutting and anti-permanent deformation capability, but also reduces the low-temperature stiffness modulus, improves the low-temperature flexibility and stress relaxation capability of the asphalt; the preparation method realizes high-value utilization of waste tires and oil refining waste residues, and has environmental protection and economic benefits.

The invention provides an oyster mushroom culture medium which comprises the following raw materials in percentage by weight: 40-50% of cottonseed hull, 10-15% of corncob, 8-15% of sawdust, 6-10% of purple perilla composite powder, 5-8% of tea seed cake pretreatment powder, 3-5% of mint composite powder, 5-8% of wheat bran, 1-2% of gypsum and 0.5-1% of calcium superphosphate, the water content of the culture medium is 65-70%, and the pH value is 6.5-7.5. The invention also provides a preparation method of the oyster mushroom culture medium, which comprises the following steps: mixing the materials according to the formula proportion, and uniformly stirring; adding clear water to adjust the water content to 65-70%, stirring, and standing for 12 hours to enable the raw materials to fully absorb water; the filling amount of each bag is 1.2 kg, sterilizing for 2-3 hours by adopting 121 DEG C high-pressure steam, and cooling to 25 DEG C or below for later use. By adding the purple perilla, the sasangua cake and the mint, the insect prevention performance of the culture medium is remarkably improved, the infectious microbe contamination rate is controlled to be 3% or below, the pest invasion rate is remarkably reduced, and the biological conversion rate and the oyster mushroom quality are remarkably superior to those of a traditional culture medium.

This invention belongs to the field of feed preparation technology, specifically disclosing a feed composition suitable for Aohan donkeys and its application in fattening. The feed composition comprises the following raw materials in parts by weight: 25-35 parts of compound fermented product, 0.5-2 parts of camellia extract, 30-40 parts of corn stalks, and 5-10 parts of cottonseed meal. This invention discloses a feed composition suitable for Aohan donkeys and its application in fattening. This feed composition can increase the body weight and average daily weight gain of Aohan donkeys, reduce intestinal permeability indicators, improve intestinal barrier function, promote the growth and development of Aohan donkeys, and improve the meat quality of Aohan donkeys.

The present application belongs to the technical field of microbial fermentation feed, and discloses a fattening sheep complete mixed granular feed fermented by lactobacillus paracasei and a preparation method. The present application provides a lactobacillus paracasei strain for degrading gossypol, and the strain is used for solid fermentation of a mixture of cottonseed meal and cassava powder to obtain a fermented feed. The fermented feed is used for preparing a fattening sheep complete mixed granular feed, which can be directly used for feeding fattening sheep and can completely meet the nutritional needs of the fattening sheep. The complete mixed granular feed can significantly improve the palatability, and increase the feed intake and daily weight gain of the fattening sheep through fermentation of the cottonseed meal and the cassava powder.

The invention discloses application of a GhGDSL102 gene in regulating and controlling the oil content of a plant, and belongs to the technical field of gene engineering. The GhGDSL102 gene is over-expressed in arabidopsis thaliana, the oil content of arabidopsis thaliana seeds is obviously reduced by 13.67%, and oleic acid C18: 1 is obviously reduced by 7.7%. After the GhGDSL102 gene is silenced, the oil content and oleic acid content of the cotton seeds are obviously increased by 9.99% and 7.57%. Meanwhile, three transgenic positive strains are obtained through overexpression of cotton, it is found through measurement of the oil content of cotton seeds that the oil content of the three overexpression strains is remarkably reduced by 11.70%, 9.14% and 19.25% respectively compared with that of a control group, and the oleic acid content is reduced by 5.54%, 7.09% and 6.29% respectively; the cottonseed oil content of the obtained homozygous edited strain is remarkably improved by 19.4%, and the GhGDSL102 is proved to be a gene for negatively regulating the cottonseed oil content.

The invention discloses a seed cotton and clothes separate test rolling mill, which relates to the technical field of seed cotton doffing, and comprises a rack, a driving mechanism and a seed cotton working box, and also comprises a sawtooth cylinder group, one end of the sawtooth cylinder group is rotatably provided with a belt pulley in transmission connection with the driving mechanism, and the belt pulley is in transmission connection with the sawtooth cylinder group through a clutch assembly; and the seed cotton comb assembly is rotationally arranged in the seed cotton working box, is driven by a stepping motor to rotate, is used for preventing cotton seeds from being taken away when the sawtooth cylinder group is used for doffing, can clean the sawtooth cylinder group, can enable the clutch assembly to be separated when the seed cotton comb assembly is blocked, and can detect the deviation of the sawtooth cylinder group. The resistance borne by the cottonseed comb is increased, so that the rotating shaft rotates, the clutch assembly is separated, the sawtooth cylinder set stops working, and therefore the situation that the cottonseed comb is damaged due to blockage and forced working of the sawtooth cylinder set is avoided.

The invention provides a solvent dosage accurate regulation and control method for preparing dephenolized cottonseed protein concentrate, which comprises the following steps: shelling, crushing and determining indexes of a cottonseed sample to obtain stable spectrum data and basic label data, and selecting southern and northern Xinjiang mixed cottonseeds for difference analysis to obtain basic processing frequency parameters; based on basic processing frequency parameters, converting total solvent dosage and content rules, preparing dephenolized concentrated cottonseed protein, and performing quality analysis to obtain a quality evaluation result; carrying out correction, exception processing, preprocessing, standardization and data set division on the stable spectral data to obtain a modeling data set; and constructing a hyperspectral quantitative correction model to obtain the predicted solvent dosage, and carrying out cross validation on the hyperspectral quantitative correction model. According to the method, the consumption of the reagent in the extraction process of preparing the dephenolized cottonseed protein concentrate is dynamically regulated and controlled through the model, so that the accurate estimation and regulation and control of the reagent consumption in the treatment process of different varieties of cottonseeds are realized.

The utility model relates to the technical field of gross cotton seed production, and particularly discloses an anti-blocking feeder for gross cotton seed production and processing, which comprises a feed port, support frames are symmetrically mounted on the surface of the feed port, and mounting frames are connected to the surfaces of the support frames; and a rotating mechanism is arranged in the feeding opening, and the rotating mechanism is characterized in that a motor is mounted on the surface of the mounting frame, an output shaft of the motor is connected with a rotating shaft, the rotating shaft is arranged in the feeding opening, and stirring rods are mounted on the surface of the rotating shaft at equal intervals. According to the feeding machine capable of preventing blocking and used for production and processing of the wool cotton seeds, the rotating mechanism is arranged, the wool cotton seeds fall on the surface of a partition plate, a heating box can heat the inner wool cotton seeds, meanwhile, stirring rods scatter the wool cotton seeds to prevent the wool cotton seeds from adhering to one another, and meanwhile a rotating shaft drives a rotating plate to rotate; and quantitative discharging can be carried out, and blockage during discharging is prevented.

The utility model relates to the technical field of cottonseed oil raw material treatment, in particular to oil expression cottonseed coarse stripping and kernel extraction equipment which can feed materials step by step, avoid accumulation, improve the separation quality and ensure the subsequent leaching effect and is convenient to use. Comprising a separating box, a bottom plate, a feeding assembly, a primary separating part, a separating part, a cotton kernel discharging assembly and a cotton hull discharging assembly, the bottom plate is installed at the bottom of the separating box, the feeding assembly is installed at the top of the separating box, the primary separating part is installed on the upper side in the separating box, the separating part is installed on the right side of the separating box, and the cotton kernel discharging assembly is installed on the lower side in the separating box; a cotton shell discharging assembly is installed in the separating component.

The invention provides a fermented corncob as well as a preparation method and application thereof, and belongs to the technical field of ruminant nutrition and feed science. The fermented corncob is prepared from the following raw material components in parts by mass: 32 to 42 parts of corncob, 2.5 to 5 parts of soybean meal, 3 to 5 parts of cottonseed meal, 2 to 4 parts of wheat bran, 2 to 5 parts of rice bran, 2 to 5 parts of glucose, 2.5 to 5 parts of cane molasses, 0.2 to 0.5 part of expanded urea, 2 to 4 parts of attapulgite powder, 0.4 to 0.6 part of compound bacterium enzyme mixture, 0.3 to 0.5 part of feed-grade sodium chloride, 0.3 to 0.5 part of feed-grade magnesium oxide and 34 to 42 parts of water. The corncob and other raw materials are subjected to mixed fermentation through combination of various bacteria and enzymes, so that the nutritional value and the nutritional level of the feed are improved. The fermented corncob can replace part of corn in the feed, the production performance is improved, the feed cost is reduced, resource recycling is effectively promoted, and the palatability of the feed is improved.

The utility model relates to the technical field of seed cotton processing machinery, and discloses an embossing rib and an embossing machine middle box, the embossing rib comprises a body and an insert, the body comprises a fixed section, a transition section and a main body section which are of an integrated structure, the transition section is arranged between the fixed section and the main body section, the fixed section is suitable for being connected with a rib row frame, and the insert is suitable for being connected with the rib row frame. The fixed section, the transition section and the main body section jointly form a continuous working surface which is used for separating cotton fibers and discharging cotton seeds, and a mounting part is arranged on the working surface, close to the transition section, of the main body section; the insert part is arranged in the mounting part, and when the insert part is mounted in the mounting part, the surface of the insert part is flush with the working surface of the main body section; according to the cotton ginning rib, the overall strength of the cotton ginning rib is improved, the service life of the cotton ginning rib is prolonged, and the situation that a gap between every two adjacent cotton ginning ribs is blocked by cotton fibers is avoided.

This invention belongs to the field of food biotechnology and bioactive peptides, and specifically relates to a cottonseed protein-derived ACE-inhibiting peptide, its screening, modification methods, and applications. The screening method of this application includes four core steps: virtual enzymatic library construction, multi-stage computer filtering, molecular docking screening, and in vitro activity verification, obtaining 194 high-confidence candidate peptides. Four cottonseed protein-derived peptides (SYF, DIF, IAF, and RFY) with in vitro ACE-inhibiting activity were verified, all exhibiting mixed ACE-inhibiting activity, with DIF showing the strongest inhibitory activity. Molecular dynamics simulations confirmed the structural stability of the ACE-DIF complex. A modified peptide FIF was obtained through a dipeptide module substitution strategy, with an IC50 value of [missing information]. 50 The activity was significantly reduced, approximately 3.7 times that of the parent peptide DIF, and the inhibition type changed from mixed to competitive. This invention provides a new approach for the development of natural antihypertensive functional peptides and the high-value utilization of plant protein resources.

The utility model discloses a cottonseed cleaning device for cottonseed processing, and relates to the technical field of cottonseed processing. The dust removal device comprises a shell, a cleaning assembly and a dust removal assembly, the top and the bottom between the two sides of an inner cavity of the shell are fixedly connected with a screen and a partition plate respectively, the bottom of the screen is fixedly connected with a vibration motor, the cleaning assembly comprises a feeding pipe, the bottom of the feeding pipe is communicated with the shell, and the dust removal assembly is fixedly connected with the partition plate. The top of the shell is fixedly connected with a cleaning shell. According to the cotton seed cleaning device, light impurities such as dust and residual flocks in cotton seeds can be sucked into the inner cavity of the cleaning shell through the cleaning assembly, the cleaning effect on the cotton seeds is improved, air in the feeding pipe and the cleaning shell flows through the draught fan, the light impurities are sucked into the inner cavity of the cleaning shell through the flowing air, and the cleaning effect on the cotton seeds is improved. The light impurities are filtered by the filter element, so that the light impurities are prevented from being attached to the surfaces of the cotton seeds, and the influence on the husking work of the cotton seeds is avoided.

The anti-blocking flushing device comprises a bottom plate, a water tank is welded to the top of the bottom plate, the side face of the water tank is connected with a water pump through a pipeline, the bottom plate is welded to the bottom of the water pump, a control device is welded to the top of the bottom plate, the water pump is connected with the water pump through an electric wire, and a water pipe is installed on the surface of the water pump. The other end of the water pipe is fixedly connected with a nozzle. According to the anti-blocking flushing device for the dephenolized cottonseed protein liquid extruding machine, the water tank is welded to the top of the bottom plate, the side face of the water tank is connected with the water pump through a pipeline, the bottom plate is welded to the bottom of the water pump, meanwhile, the control device is welded to the top of the bottom plate, and the water pump is connected through an electric wire, so that a pressing ring can be clamped and fixed to the surface of a discharging pipe; at the moment, when the device is used for flushing, the sealing ring can be used for sealing the discharging pipe and the water pipe, so that water flow cannot leak out, and when the device is used, the flushing strength is improved, and the flushing effect is guaranteed.

This invention relates to the field of cotton opening and discloses an integrated cotton opening and packaging device for textiles. The device includes a processing box with a base inside. A rotating cylinder is rotatably mounted on the outer wall of the base. It also includes a winding assembly, comprising a first circular tube uniformly rotatably mounted on the rotating cylinder. A second circular tube is slidably mounted on one side of each first circular tube, and a circular rod is slidably mounted on the other side of each second circular tube. A telescopic spring is fixedly installed inside the cavities of each first and second circular tube. By performing a secondary compression on the cotton after opening, residual cotton seeds can be scraped off, reducing the volume of the cotton and avoiding the previous problem of insufficient storage space and increased storage costs caused by the large space occupied by cotton in its open state. This effectively improves the density between cotton particles, thereby significantly enhancing the stability of the packaged cotton.

The invention discloses a method for removing free gossypol in cottonseed protein by using an ultrasonic-assisted eutectic solvent. According to the method, a deep eutectic solvent composed of choline chloride and malonic acid according to the molar ratio of 1: 2 is adopted as an extracting agent, ultrasonic extraction is combined, gossypol in the cottonseed protein is efficiently removed, the gossypol residual quantity of the prepared dephenolized cottonseed protein is smaller than or equal to 20 mg / kg, raw material waste is reduced, cost is reduced, and large-scale industrial production is powerfully supported.

The present application relates to the field of livestock feed, and provides a feed for improving the intestinal health of livestock by rosemary oil and a preparation method thereof; the feed is composed of cyclodextrin-coated rosemary oil compound, corn flour, straw pellets, wheat, barley, rapeseed meal, cottonseed meal, peas, bran, bone meal, calcium carbonate, calcium hydrogen phosphate and the like. The cyclodextrin-coated rosemary oil compound is obtained by co-precipitation of rosemary essential oil nano-composite emulsion and cyclodextrin, and the rosemary essential oil nano-composite emulsion is mainly obtained by nano-emulsification of rosemary, alpha-tocopherol and chitosan; the above technologies significantly enhance the stability, slow-release performance and absorption rate of rosemary oil in the feed. The feed is uniformly mixed and granulated by a double-shaft paddle mixer, and the feed not only improves the intestinal health of livestock and enhances the nutrient absorption efficiency, but also has good processability, storage stability and long-term performance.

The invention relates to a method for synthesizing azelaic acid and nonanoic acid through ozone oxidation by using a mixed solvent, and belongs to the technical field of fine chemical engineering. The method comprises the following steps: S1, carrying out conjugation treatment on cottonseed oleic acid, a metal oxide catalyst and maleic anhydride or acrylic acid, and then carrying out molecular distillation to obtain high-purity oleic acid; s2, mixing oleic acid with an acetic acid-low carbon alcohol mixed solvent, and sequentially carrying out pre-oxidation and deep oxidation in a tank reactor and a micro-channel reactor to obtain an odorous oxide; s3, adding hydrogen peroxide, and cracking under an acidic condition to obtain a lysate; and S4, crystallizing and separating azelaic acid, and carrying out molecular distillation on mother liquor to recover the azelaic acid and the solvent. Through raw material pretreatment and the synergistic effect of the mixed solvent and the combined reactor, side reactions are reduced from the source, so that the possible problems of low product purity, low reaction efficiency, high solvent consumption and the like in the traditional process are solved. The method is helpful for realizing higher yield and purity of the target product and promoting the cyclic utilization of the solvent, and the process flow is more green and economical.

The invention discloses a sargassum powder-containing compound feed for improving intestinal health of grass carps and a preparation method of the sargassum powder-containing compound feed, and relates to the technical field of aquaculture. The feed comprises the following components in percentage by weight: 15-30% of soybean meal, 18% of rapeseed meal, 7% of cottonseed protein concentrate, 0-17% of sunflower seed meal, 4% of rice bran, 23% of flour, 4% of corn dry vinasse, 0.15-7.32% of microcrystalline cellulose, 0.2% of choline chloride, 3.8% of soybean oil, 1.5% of monocalcium phosphate, 1% of premix, 0-0.21% of lysine hydrochloride, 0-0.04% of methionine, 0.03% of a mildew preventive, 0.01% of an antioxidant and 2-5% of sargassum powder. The feed can promote ingestion of the grass carps under the condition of low soybean meal, improves the average weight, the weight gain rate and the specific growth rate of the grass carps, and improves intestinal health of the grass carps at the same time.

The application discloses a 3D printing bacterial cellulose-based Lactobacillus rhamnosus / cottonseed peptide embedding material and a preparation method and application thereof. The method comprises the following steps: mixing sodium alginate and bacterial cellulose after shearing and homogenizing to obtain a sodium alginate-bacterial cellulose mixed solution, then adding Lactobacillus rhamnosus powder and cottonseed peptide to form a uniform suspension, and dropping the uniform suspension into a calcium chloride solution to solidify and form microspheres; another sodium alginate-bacterial cellulose mixed solution with high bacterial cellulose content is prepared as 3D printing ink, the microspheres are uniformly dispersed in the ink, and then 3D printing is performed, finally, a calcium chloride solution is sprayed on the surface of the printing product for secondary solidification, and a composite material with a double-layer embedding structure is obtained. The double-layer embedding system constructed by the bacterial cellulose and the sodium alginate can effectively protect and control the release of the Lactobacillus rhamnosus and the cottonseed peptide, and significantly improves the treatment effect of enteritis.

The device comprises a storage shell, a first handle, a second handle, a pressing plate and oil absorption filter paper, the oil absorption filter paper is laid on the bottom face in the storage shell, an opening for the pressing plate to enter and exit the storage shell is formed in the top of the storage shell, and the oil absorption filter paper is laid on the inner wall of the bottom of the storage shell. One end of the first handle is fixed to the outer wall of one side of the storage shell, the other end of the first handle extends in the direction away from the storage shell, one end of the second handle is hinged to the outer wall of the other side of the storage shell, the other end of the second handle extends in the direction away from the storage shell, and the pressing plate is fixedly connected with the second handle. The pressing plate is located at one end of the second handle close to the storage shell. According to the cottonseed oil extraction device, the cottonseed can be easily extruded to extract oil, the oil-absorbing filter paper can be immersed by the extracted oil, and a detector can intuitively observe the oil content of the cottonseed according to the oil immersion condition, so that the manpower is saved, and the detection efficiency is improved.

The cotton seed processing device comprises a material box, a winnowing mechanism, a horizontal stirring mechanism and a vertical stirring mechanism, the material box is provided with a discharging port A, the winnowing mechanism comprises a J-shaped air channel composed of an air channel arc-shaped section and an air channel horizontal section, the tail end of the air channel arc-shaped section is arranged below the discharging port A, and the tail end of the air channel horizontal section is arranged below the discharging port A; the horizontal stirring mechanism comprises a stirring shaft, an acid liquor spray head is arranged on the horizontal stirring mechanism and adds acid liquor into a pipe body of the horizontal stirring mechanism, the vertical stirring mechanism comprises a barrel, a material inlet is formed in the upper portion of the barrel, a discharging port B is formed in the lower portion of the barrel, protrusions are arranged on the surface of the inner wall of the barrel, and a stirring brush is arranged in an inner cavity of the barrel. The stirring brush comprises a rotating shaft and bristles arranged on the surface of the rotating shaft, materials are discharged from a discharging port A of the material box, collected into the horizontal stirring mechanism through wind separation of the air outlet, mixed with acid liquor, then fed into the vertical stirring mechanism to be fully mixed with cotton seeds and acid, and finally discharged from a discharging port B of the vertical stirring mechanism.

The invention belongs to the technical field of functional protein peptides, and particularly discloses a grass seed and cotton seed protein peptide-selenium nano-composite and a preparation method and application thereof.The method comprises the following steps that grass seeds and cotton seeds are extracted and degreased, and grass seed and cotton seed protein freeze-dried powder A is prepared; removing non-protein, fat and mineral substances from the cotton seed protein freeze-dried powder A to prepare cotton seed protein freeze-dried powder B; preparing the grass cottonseed protein peptide from the grass cottonseed protein freeze-dried powder B in a simulated gastrointestinal digestion environment; the grass seed and cotton seed protein peptide and sodium selenite are used as raw materials to prepare the grass seed and cotton seed protein peptide-selenium nano-composite. According to the grass seed and cotton seed protein peptide-selenium nano-composite and the preparation method and application thereof, grass seeds and cotton seeds are used as raw materials, and the prepared grass seed and cotton seed protein peptide-selenium nano-composite has the advantages of being high in absorption rate, high in safety and high in oxidation resistance; therefore, the organic selenium supplement can be widely applied to the field of future food or cosmetics as a high-efficiency dietary organic selenium supplement.

The invention discloses bacillus subtilis aldehyde dehydrogenase Dhas and application of the bacillus subtilis aldehyde dehydrogenase Dhas in degradation of gossypol. The nucleotide sequence of the gene is shown as SEQ ID No: 1 in a sequence table. The Dhas enzyme provided by the invention has extremely high affinity and catalytic efficiency on a substrate gossypol, and the degradation efficiency of the Dhas enzyme is far higher than that of other gossypol degrading enzymes reported at present. The method is good in stability, high in safety and low in application cost, protects nutritional ingredients, is high in enzymatic treatment specificity, does not damage nutritional substances such as protein and amino acid in the cottonseed meal, and remarkably improves the feeding value of the cottonseed meal.

The invention discloses an amaranthus hypochondriacus silage total mixed ration formula and a feeding method, and relates to the technical field of silage. Comprising the following raw materials: modified amaranthus hypochondriacus silage stalks, amaranthus hypochondriacus silage leaves, corn silage, alfalfa hay, corn, modified cottonseed meal, soybean meal, wheat bran, a buffering agent, a functional agent, modified attapulgite, a cattle fattening premix, stone powder and table salt. According to the beef cattle feed disclosed by the invention, the added modified grain amaranth silage stalks can reduce the digestion barrier of beef cattle to coarse feed, guarantee the utilization efficiency of daily ration fibers, and avoid the influence on the feed intake and the weight gain effect of the beef cattle due to too high proportion of low-digestion fibers; the added modified cottonseed meal provides crude protein with high utilization rate for beef cattle, and ensures the protein deposition and growth performance of the beef cattle in the fattening period; the added functional agent can inhibit the reproduction of harmful flora, improve the digestion and utilization rate of the whole feed, and guarantee the stability and high efficiency of rumen fermentation.

The application discloses a Pickering emulsion of deamidated cottonseed protein stabilizing lipase, which is composed of an aqueous phase, an oil phase, a surfactant and a lipase; the oil phase is medium-chain triglyceride, and the volume ratio is 5-10%; the surfactant is deamidated cottonseed protein, and the concentration in the Pickering emulsion is 0.1-10 mg / mL. The preparation method is as follows: the deamidated cottonseed protein is added into deionized water, and is stirred and dissolved on a magnetic stirrer to prepare a uniform aqueous phase dispersion; the medium-chain triglyceride is added into the aqueous phase dispersion, and is subjected to shearing homogenization treatment to obtain a primary emulsion; the lipase liquid is added into the primary emulsion after the homogenization treatment, and is subjected to shearing homogenization emulsification to obtain the Pickering emulsion of deamidated cottonseed protein stabilizing lipase. The application has the advantages of simple preparation process, low requirement on instruments, easy operation and scale-up, green and safe raw materials, and wide application prospect of the prepared Pickering emulsion in the fields of targeted delivery of nutrients, modification of food structure and function, and biological catalytic reaction carrier.