419 results about "Nutrients substances" patented technology

The invention belongs to the technical field of health-care products, and particularly relates to a fermented composition beneficial to enhancing immunity and a preparation method thereof. The fermentation composition for improving immunity is prepared by taking yeast beta-glucan, an elderberry extract, glucoraphanin, sea cucumber peptide, inulin and a traditional Chinese medicine zymolyte as fermentation raw materials, firstly inoculating bacillus coagulans and staphylococcus xylosus for aerobic fermentation, and then inoculating bifidobacterium longum for anaerobic fermentation, the aerobic fermentation stage and the anaerobic fermentation stage have a synergistic effect, so that the fermentation speed can be increased, the fermentation time can be shortened, and richer nutrient substances can be provided, and therefore, the composition has an excellent effect of enhancing the immunity; the fermentation composition is applied to preparation of capsules helpful for enhancing immunity, is helpful for enhancing human immunity, and can solve the problem that active substances in existing health-care products are difficult to effectively absorb by human bodies, so that the effect of enhancing immunity is influenced.

The invention belongs to the technical field of biology, and particularly relates to application of serine in relieving heat stress of pleurotus ostreatus and a method. Under the heat stress condition, exogenous serine supply promotes pleurotus ostreatus hypha to recover growth, and the activity of antioxidant enzyme, the yield of sporocarp and the yield of nutrient substances are improved; when the activity of the PHGDH enzyme is inhibited, the serine synthesis is reduced; the hypha growth can be promoted by overexpressing the phgdh, and the enzymatic activity of the PHGDH can be improved; when acetyltransferases HAT, NAT1, NAT2 and NAT3 act on a K394 site of the PHGDH, the enzyme activity of the PHGDH can be improved, endogenous serine metabolism is activated to respond to heat stress, it is indicated that PHGDH-mediated serine metabolism plays an important role in corresponding heat stress of the pleurotus ostreatus, and the invention discloses a mechanism for improving heat resistance of the pleurotus ostreatus through the PHGDH-mediated serine metabolism. And a foundation can be laid for breeding high-temperature-resistant pleurotus ostreatus dominant strains.

The invention discloses a fermentation process of citric acid residues, and relates to the technical field of organic acid fermentation. The fermentation process comprises the following steps: mixing and crushing citric acid residues and wheat bran according to a mass ratio of (4-5): 1 to obtain a mixed material; spraying an ammonia water solution, a magnesium sulfate solution and a zinc sulfate solution into the mixed material, adjusting the pH value to 5.0-5.5, sterilizing, adding a urea solution and a basic nutrient solution, and uniformly mixing to obtain slurry; aspergillus niger and saccharomycopsis fibuligera are mixed according to the spore number ratio of 100: 1, then sterile water is added, the mixture is stirred to be uniform, and bacterial liquid with the spore concentration of 1 * 10 < 7 >-5 * 10 < 7 > / mL is obtained; spraying the bacterial liquid to the surface of the slurry, performing aerobic culture for 40-48 hours under the conditions that the temperature is 30-35 DEG C and the humidity is 80-85%, then cooling to 25-30 DEG C, reducing the humidity to 70-75%, spraying methanol at the same time, and performing sealed culture for 5-6 days; performing drying; and the acid yield and the nutrient substance yield in the finally obtained fermentation product are obviously improved.

The invention relates to the technical field of rice bran processing, and discloses a rice bran degreasing and nutrition retention edible process synergistic treatment method which comprises the following steps: (a) in an NADES-aqueous solution medium, adding an immobilized catalyst A, and hydrolyzing ferulate bonds and phospholipids in rice bran at low temperature; (b) carrying out intermediate dehydration on the slurry obtained in the step (a) to reduce the water activity; (c) adding an immobilized catalyst B into the dehydrated slurry in the step (b), carrying out esterification reaction, and grafting free ferulic acid generated by hydrolysis to glyceride in situ; and (d) carrying out solid-liquid separation on the slurry obtained in the step (c) to obtain finished oil and finished powder. According to the method, an NADES medium is adopted to replace an organic solvent, the whole process is carried out at low temperature, degradation of heat-sensitive nutrient substances is avoided, and resource utilization of ferulic acid is achieved. The prepared functional rice bran oil is rich in feruloyl glyceride, total tocopherol and oryzanol, and is low in acid value and peroxide value.

The invention discloses a bagasse filter mud composting method based on synergistic interaction of sargassum fusiforme and a complex microbial inoculant. The method comprises the following steps: mixing a sugar manufacturing byproduct bagasse and filter mud according to a certain dry weight ratio, and adjusting the moisture and carbon nitrogen ratio; synchronously adding sargassum fusiforme powder and a compound microbial agent, wherein the microbial agent is prepared by compounding bacillus licheniformis and phanerochaete chrysosporium; the high-temperature period is maintained for not less than 7 days, the total fermentation period is about 45 days, and the matured compost and the fertilizer thereof are prepared. The sargassum fusiforme is used as a natural conditioner, so that the composition of nutrient substances can be optimized, nitrogen and water are preserved, and heavy metals are passivated; and the lignocellulose is specifically degraded by the complex microbial inoculants. Through the synergistic effect of the bagasse and the filter mud, the high-temperature period of the compost is remarkably prolonged, the nutrient loss is reduced, the decomposition degree and the environmental safety of a compost product are improved, and an efficient and environment-friendly new way is provided for high-value resource utilization of the bagasse and the filter mud.

The invention discloses a tobacco leaf quality improving method and system based on planting soil management. The method comprises the following steps: firstly, acquiring historical soil quality and root growth data of a tobacco plant, and analyzing root growth preferences under different soil conditions by using a clustering algorithm to form soil quality-preference data; combining the soil quality data of the target planting area to construct a root growth probability distribution map, and predicting root distribution according to the planting target; determining the arrangement position of a soil monitoring sensor according to a prediction result, and establishing a monitoring network to realize real-time acquisition of soil substance change; and finally, adjusting and managing nutrient substances in the tobacco planting process according to the monitoring data. According to the method, the adaptability of root systems and soil is improved, nutrient supply is optimized, balanced growth and stable quality of the tobacco leaves are promoted, and therefore tobacco leaf quality improvement and planting benefit optimization are achieved.

The application discloses a Lactiplantibacillus plantarum strain LP-14 and application thereof, the Lactiplantibacillus plantarum strain LP-14 is preserved in the China General Microbiological Culture Collection Center on June 3, 2024, and the preservation number is CGMCC No.30841.The application also provides application of the Lactiplantibacillus plantarum strain LP-14 in planting industry.Compared with the prior art, the Lactiplantibacillus plantarum strain LP-14 fermentation liquor can be applied to soil or leaf surface or seed surface, can rapidly reproduce by utilizing nutrients in the environment, can continuously inhibit other pathogenic bacteria and other microorganisms to occupy a microecological position advantage, avoid reproduction of harmful microorganisms, or directly stimulate the immune system of plants and seeds by contact and absorption of leaf surface and seeds, and improve the systemic resistance of plants.

A water remediation system and accompanying method includes remediation by reducing the concentration of nutrients in the water and dosing the water with metal ions. It has been found that through a combination of reducing nutrients present in the water and treating with metal ions, the requirement to treat with high chemical dosages is removed.

The invention discloses a food processor and a pulping method of the food processor, and belongs to the field of household appliances, and the pulping method of the food processor comprises a first constant-temperature stirring stage, a second constant-temperature stirring stage and a high-temperature stirring stage; the first constant-temperature whipping stage comprises the steps of heating food to a temperature T1 and whipping the food at a rotating speed r1, the second constant-temperature whipping stage comprises the steps of heating to a temperature T2 and whipping at a rotating speed r2, and the high-temperature whipping stage comprises the steps of heating to a temperature T3 and whipping at a rotating speed r3; wherein T2 is larger than T1 and smaller than T3. Effective release of nutrient substances such as gamma-aminobutyric acid can be realized in the first constant-temperature stirring stage, and meanwhile, protein is hydrolyzed to generate polypeptide in the stage, so that the peptide content of the slurry is increased; in the second constant-temperature stirring stage, polypeptide is hydrolyzed to generate amino acid, so that the content of bitter peptides is reduced. Therefore, the problem that an existing pulping method cannot give consideration to good taste and high nutrition at the same time can be solved.

The application discloses a bacteria culture device with anti-pollution function for a clinical laboratory, which comprises a culture box and a feeding bin, the feeding bin is arranged on the outer wall of the culture box, and one end of the feeding bin extends to the inside of the culture box, a mechanical hand is arranged in the inside of the culture box on one side of the feeding bin, valve plates are arranged at both ends of the feeding bin, and sealing pads are arranged on the outer walls of the valve plates. The application realizes the taking and placing of the culture box under the isolation of the inside and outside of the culture box in a vacuum state, effectively prevents the external gas and microorganisms from entering the inside of the culture box, facilitates manual operation, realizes the batch arrangement and automatic conveying of the culture dishes, improves the culture efficiency, effectively prevents the culture dishes from moving accidentally when the nutrient solution or other operations are added through the linkage structure, facilitates the selective rotation of multiple culture dishes, is beneficial to the balanced absorption of the bacteria to the nutrients, meets the individual liquid adding requirements of different culture dishes, and improves the consistency and repeatability of the culture effect.

Smart Pot Sensor with Automated Soil Additive Spraying and Plant Health Analysis, Indoor plant care can be challenging due to limited knowledge in soil monitoring, nutrient management, and environmental conditions, leading to poor plant health. Current solutions often detect issues too late or fail to provide personalized care for each plant. This invention introduces a smart pot system that integrates AI, sensors, and automated nutrient spraying. It monitors soil parameters and environmental factors in real-time, using predictive algorithms to deliver nutrients precisely when needed. A mobile app provides personalized care recommendations, optimizing plant growth and reducing manual intervention.

This disclosure provides a method for producing a fertilizer composition and a fertilizer composition produced by this method. The method for producing the fertilizer composition of this disclosure includes the steps of obtaining a polymer by crosslinking cellulose and a crosslinking agent, and adding the polymer to an aqueous solution of plant fertilizer, mixing, drying, and then obtaining the fertilizer composition. The fertilizer composition of this disclosure has high water absorption capacity and contains nutrients for plant cotton. When the fertilizer of this disclosure is mixed with soil, under drought conditions, water-soluble nutrients are released simultaneously with water, supplying moisture and nutrients to plants, such as cotton, and improving the yield and quality of cotton.

A livestock food product that includes at least one or more plant-based agricultural feeds containing at least one or more plant residues of at least one or more noxious and / or invasive plants. The one or more residues containing no more than 10% of the naturally occurring amount, by weight, of at least one noxious compound that was present in the one or more noxious and / or invasive plants, the naturally occurring amount being the amount of the at least one noxious compound that was present in the noxious and / or original plants while they were alive. The one or more noxious and / or invasive plants including at least one of hemp, tumbleweed, sagebrush, or cheat grass. These plants fibers contain valuable nutrients and flourish under semiarid conditions in abundance. Proper harvesting techniques, bioprocessing can make these plant valuable resources available to mankind environmentally and economically.

This invention relates to a microbial mineralization composite material for inkjet 3D printing and its preparation method. The composite material comprises powder materials and a binder. The powder materials, by weight, include: 70-85 parts magnesium phosphate cement powder, 10-25 parts fine aggregate, 0.5-3 parts a porous protective carrier loaded with urease-producing Bacillus licheniformis spores, 0.05-0.5 parts a nutrient protectant, and 1-5 parts a calcium source. The binder, by weight, includes: 94-98 parts deionized water, urea, 0.02-0.2 parts nutrients, 0.01-0.5 parts a pH adjuster, 0.5-5 parts a viscosity adjuster, and 0.01-0.2 parts a surface tension adjuster. The concentration of urea in the binder is 0.02-0.10 mol / L. This invention solves the problems of existing inkjet 3D printing materials having internal pores, microcracks, and weak interlayer interfaces after molding, limiting the improvement of the mechanical properties of printed parts in the later stages, and the difficulty in adapting the microbial mineralization system to the inkjet 3D printing process.

This invention belongs to the field of culture medium preparation technology, specifically a device for preparing a culture medium for Poria cocos spawn. The device includes a frame with a hopper mounted on it. One side of the hopper has a discharge pipe and an auxiliary bagging sleeve for bagging. The other side of the hopper has an inoculation channel generating component. The inoculation channel generating component includes a first auger rotatably mounted inside the discharge pipe. The first auger has a hollow central shaft, with one end of the central shaft extending out of the hopper and communicating with a feed pipe. The feed pipe is clearance-fitted with the central shaft. An extrusion tube is positioned above the feed pipe. This invention significantly improves the efficiency of culture medium bagging and inoculation. It also provides a slow-release effect for nutrients, continuously supplying nutrition for mycelial growth. Furthermore, because the extrusion component remains inside the bag during bagging, there is no need for careful handling to prevent channel collapse after the stick is pulled out, further facilitating automated inoculation.

The application discloses a method for removing impurities from cow urine and application thereof in preparation of algal culture solution, and relates to the technical field of biological treatment. The method for removing impurities from cow urine adopts a multistage treatment system of chelating agent removal, activated carbon adsorption, physical filtration, composite microbial fermentation and precision filtration; the physical filtration adopts a stainless steel filter screen; the microbial fermentation adopts a composite microbial agent containing bacillus pasteurii, bacillus subtilis and lactobacillus plantarum; and the precision filtration adopts a microporous filter membrane. The application develops an efficient, environment-friendly and low-cost method for removing impurities from cow urine, removes macromolecular contaminant substances and harmful microorganisms and the like impurities in the cow urine, and meanwhile retains beneficial nutrient components in the cow urine; high-quality algal culture solution is prepared through the impurity-removed cow urine, the cost of the algal culture solution is reduced, and the nutrient components in the cow urine are fully utilized, so that abundant nutrient substances are provided for the growth of algae.

The invention belongs to the technical field of food processing, and particularly relates to novel corn beans and a preparation method thereof.The preparation method comprises the steps of preparation of raw material corn kernels and preparation of the corn beans, and the preparation of the raw material corn kernels comprises the steps of ear harvesting, peeling and dicing, curing, fixation and dehydration; the preparation method of the corn beans comprises the steps of puffing, polishing, screening, winnowing, powder and sugar coating, drying, packaging and delivery. According to the method, the corn kernels which are not ripe are taken as raw materials, are harvested and then are immediately ripened, and are subjected to fixation to lock freshness, so that the delicate flavor and sweetness of the corn in the fresh eating period are partially reserved, the contents of nutrient substances such as protein and amino acid are higher than those of old-fashioned corn beans and corn flowers, and the appearance is good and the taste is crisp.

The invention discloses a biological fermentation feed for improving pork quality and a preparation method thereof, and belongs to the technical field of biological fermentation feeds. The biological fermentation feed comprises astragalus membranaceus powder, angelica sinensis powder, pericarpium citri reticulatae powder, codonopsis pilosula powder, liquorice powder, wild chrysanthemum flower powder, hawthorn fruit powder, rhizoma atractylodis powder, cinnamon powder, corn flour, soybean meal powder, bran powder, a bacterium enzyme complexing agent, compound enzyme liquid, compound chlorogenic acid liquid and drinking water. A preparation method of the compound enzyme liquid comprises the following steps: preparing a starch-tea polyphenol inclusion compound, and mixing; the biological fermentation feed prepared by the preparation method disclosed by the invention is not easy to decay when being placed in an open manner, is good in palatability, can greatly improve digestion and absorption of nutrient substances by pigs and improve the quality of pork, and does not need wall breaking treatment in the preparation process.

The invention discloses a rapid fattening bait for sea urchins and a preparation method thereof, and belongs to the technical field of aquaculture feeds. The bait is prepared from the following raw materials in parts by weight: 10-25 parts of kelp powder, 10-25 parts of undaria pinnatifida powder, 5-15 parts of ulva pertusa powder, 5-15 parts of mussel powder, 8-20 parts of corn flour, 1.5-4.5 parts of gelatin powder and 30-50 parts of purified water. The sea urchin fattening feed has the beneficial effects that the formula is scientific, the nutrition is comprehensive and balanced, and the sea urchin fattening feed specially aims at the sea urchin fattening nutritional requirements and can remarkably promote rapid development of sea urchin gonads; after the bait enters water, the structure can be kept complete for a long time, the bait is almost free of dissolution loss, the utilization rate of the bait is greatly improved, and water pollution is fundamentally avoided; the bait is soft in texture and easy to gnaw by sea urchins, and the surface of the bait can slowly release food calling substances to attract the sea urchins to gather and eat; in the preparation process, low-temperature mixing and gel shaping are adopted, so that nutrient substances such as heat-sensitive vitamins and unsaturated fatty acids are effectively protected.

The application discloses a genetic improvement experimental platform and method for a fungus in factory production of pilose antler mushroom, relates to the technical field of pilose antler mushroom production, and comprises a bottom plate, a rotating shaft rotatably connected to the top of the center position of the bottom plate, a wedge fixedly connected to the end of the rotating shaft away from the bottom plate, a groove with a size matched with that of an extruding piece and arranged around the center point of the wedge on the outside of the wedge, a rotating piece fixedly connected to the top of the center position of the wedge, a protrusion with a size matched with that of a rotating shaft and arranged on the rotating piece, and an extension rod rotatably connected to the top of the rotating piece. The nutrient substance inside the test tube is uniformly shaken to be evenly distributed in the test tube, the nutrient substance inside the test tube is quickly and fully mixed, the mycelium does not appear to have growth problems due to uneven distribution of the nutrient substance in the growth process, and thus accurate test results are obtained.

The invention relates to mousse prepared from purple sweet potato puree and a preparation method of the mousse. The method comprises the following steps: heating purple sweet potato primary pulp to 70 DEG C in a waterproof manner, and then adding pre-dissolved gelatin slices for later use. And then whipping whipping cream to a proper hardness, uniformly mixing the whipping cream with the purple sweet potato primary pulp, then loading the mixture into pastry bags, subpackaging the pastry bags into containers, and refrigerating to finally form the mousse. The purple sweet potato mousse is characterized in that the purple sweet potato puree is used, so that the unique flavor and taste are added to the mousse, and meanwhile, the overall nutritional value of the mousse is also greatly improved. Macromolecular nutrient substances in the purple sweet potato primary pulp are converted into micromolecular forms which are more easily absorbed by a human body under the action of enzyme, so that the absorption efficiency of the human body on nutrients in the mousse is improved. Therefore, the mousse disclosed by the invention is unique in flavor, high in nutritional value and more suitable for being eaten by various consumers, and has wide market application potential.

The invention discloses a synbiotics-like feed prepared from vegetable waste polymerized vegetable cakes and a method, and relates to the field of agricultural circular economy, cellulose in vegetable waste cell walls is effectively decomposed under mild conditions through a specific catalytic decomposition enzyme combination, and part of cellulose is converted into carbon dioxide and water, so that the utilization rate of the cellulose is improved. By combining physical heat energy conduction, liquid in cell vesicles is heated to generate micro air pressure to break through residual cell walls, so that recessive water in cells is successfully converted into surface dominant water, the energy consumption in the dehydration process is greatly reduced, and the loss of dry basis substances in the resource utilization process is effectively reduced; the vegetable cake product obtained through final polymerization is rich in various nutrient substances such as crude fibers and / or dietary fibers, proteins, vitamin C and carbohydrates, the recycling rate of the vegetable waste is larger than or equal to 95%, the recycling efficiency and the additional value are remarkably improved, meanwhile, the difficulty of subsequent harmless treatment is reduced from the source, and the economic input and the treatment cost are reduced.

This invention provides EsPTI2 The application of genes in regulating plant leaf number falls under the field of biotechnology. This invention is the first to discover that overexpression of genes in plants... EsPTI2 The gene can increase the number of leaves in rice and wheat, promote the synthesis of more carbohydrates and other nutrients, provide support for plant growth and development, and thus help biomass accumulation and yield increase. It fills the technical gap in high-yield plant type improvement of this species, provides a theoretical basis and technical reference for molecular design breeding of other grass forage grasses, and promotes the upgrading of forage grass breeding from traditional phenotypic selection to precision molecular breeding.

The invention belongs to the technical field of detection equipment, and particularly discloses POCT (Point of Care Testing) detection equipment for nutrient substance detection, which comprises a bearing part, a translation assembly, a liquid preparation mechanism, a moving mechanism, a detection needle assembly and a detection unit, the bearing part comprises a bottom plate and a mounting frame arranged on the bottom plate; the translation assembly comprises a kit placing rack and a driving assembly, the driving assembly is arranged on the bottom plate, and the driving assembly is used for driving the kit placing rack to move in the length direction of the bottom plate. According to the POCT detection equipment for nutrient substance detection, full-process automatic operation is achieved by integrating the translation assembly, the liquid preparation mechanism and the automatic movement mechanism, a liquid path system is simplified through modular design, and the POCT detection equipment has the advantages that the detection automation degree is improved, the operation process is simplified, and the equipment size and the operation cost are reduced.

The present application relates to a kind of high alkalinity wastewater pre-acidification treatment method and its processing device system, the treatment method includes: the nutrient substance is added to the wastewater to be treated and is adjusted to obtain adjusted water;Part of the adjusted water is returned to adjust and handle, another part is added to the nutrient substance and is pre-acidification treatment, obtain pre-acidification water;Pre-acidification water is treated by anaerobic purification, obtain anaerobic purification water;Anaerobic purification water is treated by aeration and sedimentation in turn, obtain treated water.The treatment method and its processing device system provided by the present application can regulate the metabolic activity of microorganism, reduce the inhibitory effect of wastewater alkalinity and metal ions on anaerobic microorganism, improve the anaerobic removal rate of anaerobic purification treatment, reduce the adding cost of acidic substance and nutrient substance.

The invention relates to the technical field of food processing, in particular to a high-yield nutrient 3D printing biological scaffold prepared on the basis of neurospora crassa spores and bean dregs. The biological scaffold prepared by the invention can form a closed-loop system of agricultural wastes, biological carriers and high-value products. The system has the characteristics of high efficiency, sustainability, flexibility, controllability and the like and the capabilities of modular design and dynamic regulation and control, programmable regulation and control of active compound synthesis can be realized through material-cell interaction, and a novel manufacturing mode is provided for synthesis and precise biosynthesis of nutrient substances such as fungal protein and carotenoid.

The present invention is directed to peptidomimetics having antibacterial activity, especially against Gram-negative bacteria. The peptidomimetics of the invention are compounds of the general formula (I), P1-P2-P3-P4-P5-P6-P7-P8-P9-P10-P11-P12-P13-P14-P15-P16 (I) and salts thereof, in particular pharmaceutically acceptable salts thereof, as described in the description and in the claims. The invention is also directed to therapeutic uses of the peptidomimetics for the treatment or prevention of bacterial infections and diseases related to bacterial infections and to non-therapeutic uses of the peptidomimetics for preserving or disinfecting foodstuffs, cosmetics, medicaments or other nutrient-containing materials.

The invention discloses a method for promoting growth of vegetables by using a charcoal modified hydrogel slow-release fertilizer. The method comprises the following steps: mixing the charcoal modified hydrogel slow-release fertilizer with ploughed soil, irrigating to moisten the soil, sowing, harvesting after the vegetables grow for a certain time, and regularly irrigating during the period. The biochar modified hydrogel slow-release fertilizer is obtained by performing freezing and thawing cycle treatment on a solution containing biochar, nutrient substances and a polymer. The prepared biochar modified hydrogel slow-release fertilizer has the advantages of being high in nutrient substance slow-release capacity, good in water retention effect, stable in environment and the like, can be widely applied to planting and fertilization of leaf vegetables, shows a very excellent effect of promoting the yield increase of the vegetables, is beneficial to improving the utilization efficiency of the fertilizer, and has a very good application prospect. Therefore, the method has the advantages of being simple in process, convenient to operate, low in cost, high in water and fertilizer utilization rate, good in yield increasing effect and the like, and has good economic benefits and application prospects.

The present application relates to the field of aquaculture, and more particularly to a multi-nutrient level aquaculture system, comprising a breeding tank, a breeding platform and a partition plate; the breeding tank is fixedly connected with the partition plate; the upper part of the breeding tank is connected with the breeding platform; the present application realizes the interception of residual fish manure and fish food by the interception net in the third breeding area, greatly increases the organic matter content in the third breeding area, and enables the aquatic plants to better absorb the nutrients in the water; at the same time, the aquatic plants can also absorb carbon dioxide in the water through photosynthesis and release oxygen, thereby improving the water quality; and the mesh size of the interception net gradually decreases from front to back, thereby intercepting different sizes of organic impurities in the water, avoiding the concentration of organic impurities in the water in the area where the first filter screen is located when only a single filter screen or multiple filter screens with the same mesh size are arranged, and causing the uneven distribution of organic impurities in the third breeding area, thereby affecting the absorption of nutrients by the aquatic plants.

This invention pertains to microbial fermentation, specifically a method for preparing a fermentation broth containing β-1,3 / α-1,3-glucan. The method involves inoculating *Rhizobium spp.* into a sterilized fermentation medium containing carbon sources, nitrogen sources, and essential nutrients, followed by aerated fermentation. The carbon source in the fermentation medium is sucrose, and the nitrogen source is soy protein isolate. The aeration rate is controlled in stages, and nitrogen sources and hydrogen peroxide are supplemented during fermentation. This invention solves the problem of low fermentation yield in existing technologies, offering advantages such as high fermentation broth viscosity, a fermentation yield of 25 g / L to 30 g / L, and good water solubility of the prepared product.