1242 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 microbial remediation ceramsite comprises microorganisms, nutrient substances, modified porous slow-release Ca < 2 + > ceramsite and a cement-based protective shell, the microorganisms and the nutrient substances are loaded in the modified porous slow-release Ca < 2 + > ceramsite, and the cement-based protective shell wraps the outer surface of the modified porous slow-release Ca < 2 + > ceramsite. The surface of the ceramsite is modified by an aggregation-crosslinking method, and the modified microbial ceramsite carrier has higher microbial loading capacity and better stability under the dual actions of physical adsorption and valence bond combination, so that the repair effect of the ceramsite on cracks is further ensured; the cement-based protective shell adopts epoxy resin, so that the cylinder compressive strength of the ceramsite is improved, and microorganisms and nutrient substances are protected from being damaged by a high-alkalinity environment; the cement-based mixed powder is selected to enhance the interface adhesive force between the ceramsite and cement concrete, the sulphoaluminate cement in the mixed powder ensures the strength of the ceramsite in the early stage, and the fly ash, the silica fume, the nano-silica and other materials enable the later strength of the ceramsite to be continuously increased.

The invention provides a nutrient slow-release synergistic seedling transplanting disc and application thereof. The nutrient slow-release synergistic seedling transplanting disc is composed of a disc body and a seedling cup, the disc body is composed of two layers of materials including PBAT and PLA, the seedling cup is composed of three layers of materials, the inner layer is made of the PBAT material, the middle layer is a strip-shaped fertilizer belt made of macroelements, organic fertilizer, bacterial fertilizer and microelements, and the outer layer is made of the PLA material. The nutrient slow-release synergistic seedling transplanting disc integrates seedling raising and fertilization and can be used for seedling transplanting of grafted seed melons, seedling cups are directly transplanted into soil during transplanting, seedlings and the disc do not need to be manually separated, the seedling transplanting disc does not need to be recycled and transported after transplanting, the seedling cups in the soil isolate damage of salt, alkali and diseases and insect pests to seedling roots, and the seedling transplanting disc is convenient to use. Meanwhile, nutrient substances are slowly released, nutrients needed by melon seedlings are accurately met, the problem that an original seedling raising plate pollutes the environment is solved, and the problems that roots are damaged during transplanting, fertilization is balanced, the growth environment of the roots is poor and germs are harmed are solved.

The invention discloses a method for preparing a liquid fertilizer and improving crop yield by using tylosin waste liquid, and belongs to the technical field of agricultural waste resource utilization, and the method comprises the following steps: S1, preparing a novel liquid fertilizer: mixing the tylosin waste liquid with an antibiotic degradation agent for reaction, centrifuging, and collecting supernatant; adding nutrient substances and a mixed bacterial agent into the centrifugate for fermentation treatment, and filtering to obtain filtrate, namely the novel liquid fertilizer; s2, taking crop seeds, and soaking the crop seeds in a soaking solution before planting; s3, in the seed bud stage and the seedling stage, leaf surface spraying is conducted; wherein the antibiotic degradation agent is prepared by reacting modified silicon dioxide with sulfhydrylated sodium carboxymethyl cellulose. According to the method, resource utilization of the tylosin waste liquid is achieved, environmental pollution and use of chemical fertilizers are reduced, the agricultural production cost is reduced, and an effective way is provided for agricultural sustainable development.

The invention discloses a feed for improving earthworm breeding yield and a preparation method thereof, and belongs to the technical field of earthworm breeding, the feed comprises the following components: 30-50 parts of fermented livestock and poultry manure, 20-30 parts of crop straw, 10-20 parts of soybean curb residue, 10-15 parts of corn flour, 5-10 parts of wheat bran, 3-5 parts of bone meal, 2-4 parts of shell powder, 0.5-1 part of a microbial agent, 1-2 parts of brown sugar, and a proper amount of water. The fermented livestock and poultry manure is rich in various mineral elements and organic nutrients such as nitrogen, phosphorus and potassium, and is an important source of nutrients required by earthworm growth; the crop straws are rich in cellulose and can promote intestinal peristalsis of the earthworms and help digestion; the soybean curb residues, the corn flour and the wheat bran are rich in nutritional ingredients such as protein and carbohydrate, and sufficient energy is provided for the earthworms; the bone meal and the shell powder contain a large amount of mineral substances such as calcium and phosphorus, so that the development of bones and bodies of the earthworms is facilitated; the microbial agent can regulate microbial flora in the feed and promote the absorption and utilization of the earthworms to nutrient substances.

The present invention relates to a preparation method of a collagen filler for injection. Non-crosslinked collagen, crosslinked collagen, and biodegradable polymer microspheres are compounded and mixed in a certain proportion to achieve an immediate filling effect. The biodegradable polymer microspheres play a long-term role, and the amino acid components degraded from collagen in the early and middle stages can become nutrients that stimulate the production of collagen regeneration by polyester microspheres. In the present invention, the crosslinked collagen has a high yield and less water loss through a gradient irradiation crosslinking technique. The non-crosslinked collagen gel can provide a microenvironment for nutritional repair and a filling effect in the early stage, the crosslinked extracellular matrix can provide a repair microenvironment in the middle stage of filling, and the degradation of polyester microspheres in the later stage promotes collagen regeneration, enabling the skin to have a good microenvironment throughout the repair cycle and increasing skin elasticity.

The invention discloses a soil microbial fermentation device and a fermentation method, and relates to the field of microbial fermentation. A soil microorganism fermentation device comprises a fermentation tank and further comprises a cover plate detachably connected to the upper end of the fermentation tank; the material conveying barrel is positioned in the fermentation tank and is rotationally connected to the cover plate; the rotating sleeve is connected to the material conveying barrel in a sleeving mode, and a shifting rod is fixedly connected to the rotating sleeve; the motor drives the bevel gear for transmission, the linkage conveying barrel and the rotating shaft to rotate, and the electric telescopic rod is matched to drive the rotating sleeve to reciprocate, so that the three-dimensional stirring of the driving lever and the circulating conveying of the spiral blade are realized, a multi-dimensional stirring mode is formed, the material mixing uniformity is improved, the full contact of microorganisms and nutrient substances is promoted, and the fermentation efficiency and quality are improved; the elastic deflector rod and the counterweight ball can adaptively adjust the stirring range along with the rotating speed, eliminate stirring dead angles, accelerate the fermentation process, shorten the period, reduce the cost, and further optimize the fermentation effect and the product quality.

The invention discloses a special bacterial fertilizer for sorghum and application of the special bacterial fertilizer in prevention and control of sorghum diseases, and belongs to the technical field of microbial fertilizers and agriculture. The special bacterial fertilizer for sorghum comprises the following components in parts by weight: 8-10 parts of a composite microbial agent, 40-50 parts of sorghum residues, 5-10 parts of bentonite, 1-2 parts of potassium humate, 1-2 parts of composite trace elements, 10-20 parts of sawdust and 10-20 parts of rice bran, wherein the complex microbial inoculant consists of a bacillus subtilis microbial inoculant, a rhizobium microbial inoculant, a bacillus velezensis microbial inoculant and a trichoderma harzianum microbial inoculant. The special bacterial fertilizer for sorghum provided by the invention contains rich microorganisms and nutrient substances, and can effectively prevent and control sorghum diseases and enhance the disease resistance of sorghum. The components such as microorganisms and organic acids in the special bacterial fertilizer for sorghum can promote the formation of soil organic matters, improve the soil structure, improve the soil quality and effectively improve the growth environment of sorghum.

An industrialized fish and algae farming system with recirculating water and method are provided, and the system includes a fish and algae farming system, a fiber rotary disc filter system, and a magnetic loading flocculation system. In accordance with the fish and algae farming system, the aquaculture of fish and algae in the same space is achieved, the algae can transform CO2 exhaled by fish and nutrients, polysaccharides, vitamins and lipids, and then release oxygen to rapidly improve the aquaculture water quality. The fiber rotary disc filter system and the magnetic loading flocculation system can effectively remove suspended particles, grease, algae, bacteria, viruses and the like in aquaculture sewage, thus achieving the deep purification of the aquaculture sewage. The purified water quality reaches the aquaculture standards in fishery and can be directly recycled, and the whole system has no sewage discharge.

The invention discloses a cooking method of a pressure cooker, which comprises the following steps: a boosting cooking stage: starting a heating device to enable the cooking pressure of the pressure cooker to reach a first preset cooking condition; in the variable-pressure wall breaking stage, a heating device is turned off, a cooling device is turned on to enable the cooking pressure of the pressure cooker to be rapidly reduced from the first preset cooking condition to a second preset cooking condition, so that cell walls of cooking food materials are broken under the action of pressure difference formed in a short time, and the second preset cooking condition at least comprises that the cooking pressure is larger than normal pressure. When the cooking pressure is rapidly reduced from the first preset cooking condition to a second preset cooking condition, the rapid pressure reduction rate is at least 1.8 times of the natural pressure reduction rate. Through the method, food materials which are not easy to cook and have thick cell walls can be cooked in a short time, meanwhile, nutrient substances are fully dissolved out, and the cooking taste is improved.

The invention relates to the technical field of environmental microorganisms, in particular to arthrobacterium Arth.R8 and application thereof, and the preservation number of the arthrobacterium Arth.R8 is GDMCC No.63567. The arthrobacter Arth.R8 has the effects of fixing nitrogen, dissolving organic phosphorus, promoting growth and promoting nodulation. The arthrobacter Arth.R8 disclosed by the invention can be used for promoting absorption and utilization of nutrient substances such as nitrogen and phosphorus in a plant growth process, inhibiting growth of fusarium graminearum and promoting plant growth, and a new microbial strain resource is provided for realizing reduction and synergism of chemical fertilizers in agricultural production.

The invention belongs to the technical field of biological feed, and particularly relates to a composite silage leavening agent, silage and application. The compound silage leavening agent is prepared from the following components: lactobacillus plantarum and vitamin enzyme, wherein the concentration of the lactobacillus plantarum is greater than or equal to 1 * 10 < 9 > CFU / kg, and the concentration of the cellulase is 1 * 10 < 6 >-1 * 10 < 8 > U / kg. In the preparation process of the silage, due to the synergistic effect of cellulase and lactobacillus plantarum, escape of nutrient substances such as ammoniacal nitrogen is reduced, the content of nutrient substances such as polypeptide is increased, and the nutritional value of protein of the silage is reserved. The ensiling feed disclosed by the invention is good in fermentation quality and rich in nutrient substances, and can improve the digestibility and the total volatile fatty acid yield of mutton sheep when being used for feeding the mutton sheep; and meanwhile, efficient conversion of silkworm branch and leaf byproducts can also be realized.

The invention relates to the technical field of preparation methods of giant salamander peptide and eucommia ulmoides male flower tablets, in particular to a preparation method of giant salamander peptide and eucommia ulmoides male flower tablets. The giant salamander peptide and eucommia ulmoides male flower tablets comprise the following raw materials in parts by weight: 30-40 parts of giant salamander peptide powder, 20-25 parts of eucommia ulmoides male flowers, 10-15 parts of rape pollen, 10-15 parts of sea cucumber intestine peptide powder, 10-12 parts of a filler, 3-5 parts of an adhesive and 1-3 parts of a lubricant. According to the invention, the eucommia male flower contains geniposidic acid, chlorogenic acid, aucubin lignin, iridoid and phenylpropanoid natural active nutrient substances, flavonoid compounds, polysaccharide and other bioactive substances in the rape pollen, polysaccharide and peptide components in the sea cucumber intestine peptide powder, and the like. The andrias davidianus peptide powder is added into the andrias davidianus peptide powder, the andrias davidianus peptide powder cooperates with antioxidant peptide and immunomodulatory peptide in the andrias davidianus peptide powder to jointly form a rich bioactive substance library, and the components regulate the physiological functions of the human body from different angles, provide comprehensive nutrition support for the body and improve the fatigue resistance of the human body.

The invention discloses a feed additive for improving animal immunity and a preparation method, and belongs to the technical field of animal feed. The nutrient components comprise the following raw materials in parts by weight: 10-20 parts of amino acids, 0.5-3.0 parts of vitamins and 15-22 parts of minerals; the traditional Chinese medicine components comprise 20-30 parts of radix astragali, 15-25 parts of radix codonopsis, 5-20 parts of rhizoma atractylodis macrocephalae, 10-20 parts of poria cocos, 10-15 parts of radix isatidis, 5-15 parts of honeysuckle flowers, 6-12 parts of echinacea purpurea, 3-12 parts of radix acanthopanacis senticosi and 3-8 parts of fiveleaf gynostemma herb; functional additives: 3-5 parts of probiotics, 2-4 parts of an enzyme preparation and 1-3 parts of an antioxidant. According to the invention, a multi-dimensional synergistic effect is achieved, and a traditional Chinese medicine immune enhancement-antiviral core formula system is formed; through cooperation with nutrients and functional additives, a composite protection system of immunity enhancement, nutrition optimization, intestinal health and stress resistance is constructed. The immunity and the disease resistance of animals are obviously improved.

The invention relates to the technical field of culture substrates, in particular to a culture substrate and a preparation process thereof. The culture medium sequentially comprises a perlite particle layer, a first fiber base material layer, an ammonium magnesium phosphate slow-release fertilizer layer, a temperature-sensitive water-retaining agent layer and a second fiber base material layer from bottom to top, the thickness ratio of the perlite particle layer to the first fiber base material layer to the ammonium magnesium phosphate slow-release fertilizer layer to the temperature-sensitive water-retaining agent layer to the second fiber base material layer is (5-10): (20-40): (1-2): (0.1-1): (10-30); the raw material of the perlite particle layer is perlite particles with the particle size of 2-4 mm. Synergistic longitudinal permeation and transverse diffusion of water can be effectively achieved, water can be locked at low temperature and high humidity, water can be released at high temperature and low humidity, the porosity is enlarged, the system stability is excellent, nutrient substance loss can be effectively avoided, and the substrate state can be stably maintained even if the substrate is used for a long time.

The invention discloses a seed pelleting formula for improving salt tolerance of suaeda salsa in coastal saline-alkali soil and a processing method, the pelleting formula comprises 348-492 parts of a filler, 348-492 parts of a binder, 348-492 parts of a water-retaining agent and 348-492 parts of a biological stimulant, and the filler comprises attapulgite, talcum powder and vermiculite; the binder is 73-89 parts and comprises sodium carboxymethyl cellulose, polyvinyl alcohol and starch; the water-retaining agent accounts for 30 to 42 parts, and the water-retaining agent is polyacrylamide; the biological stimulant is prepared from the following components in parts by weight: 20-78 parts of yeast metabolite, potassium fulvate, seaweed essence, rhamnolipid and a microbial agent; the processing method comprises the steps of seed selection, raw material preparation, layered coating, low-temperature drying, selection and sieving, and polishing and shaping. According to the invention, a layered coating process is adopted to break through a traditional single mixed coating mode, an isolation breathable microenvironment is firstly constructed by the filling layer, then growth-promoting stress-resistant nutrient substances are injected by the active layer, and finally, the shaping layer is used for locking and shaping and strengthening protection, so that the seeding performance, salt tolerance, germination activity and seedling stress resistance of the pellets are remarkably improved.

The invention belongs to the technical field of microorganisms, and particularly relates to a Prlisteria megatherium strain and application thereof. The invention provides a strain of Pristeria megaterium A3, and the preservation number of the Pristeria megaterium A3 is CGMCC (China General Microbiological Culture Collection Center) No. 31931. The prelisteria megatherium A3 can generate indoleacetic acid (IAA), and can directly promote the elongation of a plant root system, so that the opportunity that a plant is in contact with nutrient substances in soil is increased, the content of endogenous IAA in a plant body is increased, the expression of a plant defense gene is induced, and the stress resistance such as disease resistance and drought resistance of the plant body is improved. Meanwhile, the prelisteria megatherium A3 disclosed by the invention has phosphorus solubilizing capacity, and can convert phosphorus which is difficult to utilize into available phosphorus, so that the content of available phosphorus in soil is increased. In addition, the prelisteria megatherium A3 also has potassium dissolving capacity, and can improve the utilization rate of the fertilizer and promote the growth and development of plants and the absorption of the fertilizer.

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 relates to the technical field of tomato juice processing, in particular to flavor-improved NFC tomato juice, a preparation method thereof and compound juice. The invention provides flavor-enhanced NFC tomato juice, a preparation method thereof and composite fruit juice. The tomato NFC beverage prepared by the preparation method is bright in color, mellow and fine in taste, appropriate in sugar-acid ratio, moderate in viscosity and weakened in layering phenomenon by utilizing specific ultrasonic treatment and ultrahigh-pressure non-thermal sterilization processes, and the flavor of tomato raw materials and the flavor of tomato juice, especially the characteristic flavor of tomatoes, are enhanced under the condition of no additives. In addition, various nutrient substances in the tomatoes are reserved to the maximum extent, and the special color, flavor and nutrient components of the product are still kept in the storage period.

The invention relates to the technical field of conditioners, in particular to a conditioner for improving crop stress resistance and a preparation method thereof, and the conditioner comprises the following raw materials: plant hormones, trehalose, humic acid, a complex microbial inoculant, modified nano sodium alginate, modified nano zinc oxide, lactic acid, a green tea extract and a licorice extract. The modified nano-sodium alginate, the modified nano-zinc oxide and the lactic acid play a role through a synergistic effect, the modified nano-sodium alginate and nutrient substances form a modified nano-sodium alginate gel compound through physical adsorption and chemical effects, stress-resistant peptides on the surface of the compound directly activate immune systems of crops, synthesis of stress-resistant proteins is promoted, and the stress resistance of the crops is improved. The modified nano-zinc oxide enhances the absorption of nutrient substances by crop root cells, assists the activation of crop immune systems, and synergistically enhances the disease resistance and stress resistance of crops, and the lactic acid effectively stabilizes the pH value of the conditioner, relieves the oxidation pressure of crops under adverse conditions, and enhances the physiological stability of crops.

A cultivation method for Morchella on patterned layer frames is provided. The method includes: (1) preparing and laying a culture substrate, and sowing; (2) supplementing an exogenous nutrient material; (3) mycelium culture; (4) primordium induction; (5) primordium differentiation; (6) management of a young mushroom period; (7) maturity management; and (8) erchao mushroom management. The method adopts a low temperature of (5-9)° C. to promote a transformation of an exogenous nutrition and adopts a low temperature of (2-4)° C. to induce a differentiation of primordium and other measures, to address a bottleneck of industrial development that cannot continuously supply fresh Morchella to the market, which is caused by some problems in the cultivation of Morchella, such as an unstable yield and seasonal limitation in the existing cultivation of Morchella. The method can carry out industrial facility cultivation for Morchella, and can obtain Morchella with stable yield and good quality.

The invention belongs to the technical field of feeds, and particularly relates to a variable temperature animal feed as well as a preparation method and application thereof. The variable temperature animal feed comprises a core body and a shell layer arranged on the surface of the core body, the core body comprises sodium alginate, a protein base material, a phagostimulant A and a fermentation product synergist; the shell layer is prepared from the following raw materials: sodium alginate and calcium lactate; the shell layer comprises a phagostimulant B; the phagostimulant A comprises an insect-derived phagostimulant, an animal-derived phagostimulant and a plant-derived phagostimulant; the phagostimulant B comprises freeze-dried powder containing fructose and insect zymolyte. Through the synergistic effect of the insect-derived phagostimulant, the animal-derived phagostimulant and the plant-derived phagostimulant and the delicate flavor synergistic effect of the fermentation product synergist and the insect-derived phagostimulant in the phagostimulant A, and in combination with a preparation process of a low-temperature and irradiation sterilization technology, the variable-temperature animal feed has good phagostimulant and nutrient substance retention rate; and safety is realized.

The invention discloses a fertilizer suitable for saline-alkali soil and a preparation method and device thereof, and relates to the field of saline-alkali soil fertilizers.The fertilizer particles are of at least N layers of core-shell structures, first compositions are arranged on the odd layers from inside to outside, second compositions are arranged on the even layers from inside to outside, N is an odd number larger than or equal to 3, and the core-shell structures are of a core-shell structure. The composition I is prepared from the following raw materials: an organic base fertilizer, a nitrogen-phosphorus-potassium base fertilizer, ammonium lignosulfonate, amino acid, a microbial agent and a mariculture product extract. The fertilizer particle has an odd-layer core-shell structure, the outermost layer is nutrient substances, the problem that the composition I on the surface is rapidly dissolved along with irrigation when the fertilizer is just put into the saline-alkali soil is solved, the effect of rapidly improving the saline-alkali soil is achieved, and the survival rate of seedlings is increased. After the irrigation period is finished, the composition II protects the composition I on the inner layer and waits for the next irrigation period, so that the excessive concentration of the fertilizer in a short time can be avoided, the purpose of slowly releasing the fertilizer can be achieved, and the fertilization frequency of the saline-alkali soil is reduced.

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 saline-alkali soil improvement, in particular to a compound conditioner for treating sulfate type saline-alkali soil and application of the compound conditioner. The compound conditioner is formed by compounding hydrotalcite, acidic zeolite and humic acid; wherein the hydrotalcite is nitrate intercalated MgAl-LDH or MgFe-LDH, and the molar ratio of divalent metal ions to trivalent metal ions of the hydrotalcite is (2: 1)-(4: 1); the acidic zeolite is clinoptilolite treated by a nitric acid solution; the humic acid is mineral source humic acid, and the purity of the humic acid is greater than 80%. The compound conditioner disclosed by the invention can mineralize Na < + > and SO4 < 2-> which are too high in content in saline-alkali soil, reduce the salt content and pH and prevent plants from osmotic stress and alkaline toxicity; the content of nitrate nitrogen and organic matters in soil is increased, and nutrient substances are provided for plants; the soil structure is improved, the water-retaining property and the air permeability are enhanced, the soil bulk density is reduced, and plant germination and root growth are facilitated.

The invention belongs to the field of diet management, and particularly relates to a nutrition diet management system and method.The management system comprises a data storage module used for storing raw material library data, nutrition standard data of students of all ages and basic information data of schools. The nutrient distribution weight is re-planned according to the differentiated requirements of all age groups on key nutrients such as protein, calcium and vitamins. The method has the advantages that the defect that a traditional average distribution mode does not depend on age difference is overcome, the matching degree of nutrition distribution and standard intake of each age group is increased by 60% or above, calcium and high-quality protein supply is enhanced for adolescent students, and the health problems of slow growth, obesity and the like caused by nutrition imbalance are effectively solved. The method has the core advantages that nutrition support matched with the growth stages of students is provided for the students, healthy development of the bodies is guaranteed from a nutrition supply source, and the students are assisted to obtain the most suitable nutrition nourishment in different growth stages.

The invention discloses a preparation method and application of torreya grandis antioxidant emulsion, and relates to the field of food additives. The torreya grandis antioxidant emulsion is prepared by taking torreya grandis oil production waste as a raw material, performing selective degreasing, enzymolysis extraction, acid sedimentation and alkaline salting-out to obtain a torreya grandis antioxidant nutrient substance, and then performing self-assembly composite emulsification. According to the preparation method of the torreya grandis antioxidant emulsion, the used raw materials are purely natural and low in cost, beneficial substances with different polarities in torreya grandis are reserved to a great extent, and finally a natural food additive which is high in nutritional value, strong in antioxidant effect and relatively long in storage life is obtained.

The invention relates to the technical field of self-adaptive degradation control scheme design based on tetracycline polluted water, in particular to a self-adaptive degradation control method and system based on tetracycline polluted water. The method comprises the following steps: arranging a plurality of monitoring points in a polluted water body, monitoring water quality parameters such as tetracycline concentration, dissolved oxygen, pH value and the like in real time, fusing and processing data, and predicting the degradation condition by using a tetracycline degradation model. When the water quality parameters meet the preset conditions, a feedback adjusting mechanism is triggered, and the microbial flora putting amount, the nutrient substance supply amount and the environmental conditions (temperature and pH value) are automatically adjusted. The invention also provides a microbial flora feeding amount, a nutrient substance supply amount adjusting rule and an environmental condition adjusting mode. The system comprises a monitoring module, a data analysis module and a feedback regulation module. According to the invention, self-adaptive control of tetracycline polluted water degradation is realized, the degradation efficiency is effectively improved, and the stable treatment effect is guaranteed.

The utility model discloses a stirring device for industrial enzyme preparation production, which relates to the technical field of enzyme preparation production and comprises a tank body, outer channel steel for reinforcement is sleeved at the bottom of the tank body, a cover plate is hermetically connected to the top of the tank body, and a feed pipe penetrates through the cover plate. A discharging pipe communicated with the interior of the tank body is arranged on one side of the tank body, and an observation window is formed in the side wall of the tank body. The conveying rod is driven by the output shaft of the motor to rotate in the conveying pipe, fermentation liquor at the bottom of the tank body can be conveyed to the upper portion along the conveying pipe, damage of shear force to zymoprotein molecules is reduced, the fermentation liquor flows all around under the guidance of the guide plate and the arc-shaped groove, the circulation speed of the fermentation liquor in the tank body is increased, and the fermentation efficiency is improved. The cells are in full contact with nutrient substances, it can be ensured that temperature distribution in fermentation liquor is more uniform, local overheating or supercooling is avoided, and the growth speed and enzyme production efficiency of the cells are improved.

The invention belongs to the technical field of saline-alkali soil remediation, and relates to a saline-alkali soil remediation composition and a preparation method thereof.The composition comprises biochar, an arthrobacter rhombus BFL-3 embedding composition, a surfactant and a chelating agent; the arthrobacter rhombus BFL-3 embedding composition is prepared from arthrobacter rhombus BFL-3 bacterial powder and modified hydrogel. The arthrobacter rhombus BFL-3 has good saline-alkaline resistance, and metabolites of the arthrobacter rhombus BFL-3 can relieve soil salinization, improve the soil structure, improve the pH value of land, provide nutrient substances for soil and promote growth and development of beneficial microorganisms, plants and crops. The biochar is used as a carrier, and the modified hydrogel-embedded arthrobacter rhombus BFL-3 shows higher reproduction activity and soil improvement performance, and can effectively relieve the salinization degree of the soil and promote the growth of crops.