436results about How to "High extraction rate" patented technology

The invention provides velvet antler mushroom sporocarp water extraction residue polysaccharide as well as an extraction method and application thereof, and belongs to the technical field of edible mushroom polysaccharide preparation. The invention provides an extraction method of water extraction residue polysaccharide of a mushroom fruiting body, which comprises the following steps: sequentially carrying out solid state fermentation, post-treatment and hot water extraction on the water extraction residue of the mushroom fruiting body to obtain an extraction product containing the water extraction residue polysaccharide of the mushroom fruiting body. According to the method disclosed by the invention, the water extraction residues of the pilose antler mushroom sporocarp are used as raw materials, so that high-value utilization of the water extraction residues of the pilose antler mushroom sporocarp can be realized. Moreover, the method can improve the yield and content of polysaccharide, and has the advantages of no chemical residue, ecological environmental protection, high production efficiency and the like. Besides, the polysaccharide prepared by the extraction method disclosed by the invention is stable under a digestion condition, and the prepared polysaccharide can improve the content of short-chain fatty acids in intestinal tracts, so that a basis is provided for application of the polysaccharide of the water-extracted residues of the fruiting bodies of the velvet antler mushrooms in new potential prebiotics.

The invention relates to the technical field of temperature control, in particular to a traditional Chinese medicine raw material extraction process temperature control system and method.The system comprises a real-time environment monitoring module, a temperature prediction adjusting module, an abnormal temperature analysis module and a temperature control optimization response module; collecting a temperature signal of the traditional Chinese medicine raw material extraction equipment, and recording the humidity change of the extraction environment. According to the invention, through real-time acquisition and analysis of temperature and humidity data, the precision and the reaction speed of temperature regulation are further improved, so that even tiny temperature fluctuation can be detected and brought into regulation, through temperature prediction, the system can effectively predict the future temperature change trend, and through the combination of the prediction capability and the instant reaction, the real-time performance of the system is improved. The temperature in the extraction process is maintained in the optimal state, the extraction rate and quality of effective components are greatly optimized, and due to timely recognition and regulation of abnormal temperature points, potential quality problems are prevented, and energy consumption is reduced.

The invention relates to the technical field of intelligent control, in particular to a traditional Chinese medicinal material extraction intelligent control system which comprises a heat energy distribution control module, a pressure environment optimization module, a solvent dynamic adjustment module, an extraction abnormity intervention module and a component extraction quality improvement module. According to the invention, by dynamically adjusting heat energy output, pressure distribution and solvent flow velocity, accurate control of key parameters in the extraction process of traditional Chinese medicinal materials is realized, uniform distribution of heat energy is ensured, extraction efficiency and quality are optimized, the system is adjusted according to the change of pressure gradient, the adaptive capacity to the fluctuation of extraction conditions is enhanced, and the extraction efficiency is improved. The flexibility and overall stability of the system are improved, the use efficiency of the solvent is improved through fine solvent adsorption and diffusion regulation and control, the solvent is promoted to uniformly act on the traditional Chinese medicinal materials, the extraction rate and uniformity of effective components are improved, the solvent distribution and concentration are rapidly adjusted when temperature fluctuation or pressure deviation occurs, and the abnormal response capability is enhanced. And the continuity of the extraction process and the product consistency are ensured.

The invention discloses a method for extracting valuable metals from black powder of waste lithium ion batteries, and belongs to the technical field of recycling of waste lithium ion batteries. According to the method, valuable metals are extracted from the waste lithium ion battery black powder by adopting low-temperature roasting and water leaching, the waste lithium ion battery black powder is taken as a raw material, sulfamic acid is taken as a roasting agent, the waste lithium ion battery is pretreated, and roasting for carbon removal, metal extraction and water leaching are performed in sequence, so that the valuable metals are obtained. And leaching liquid and leaching residues containing two or more elements of lithium, nickel, cobalt, manganese, iron and aluminum are obtained and are used for further purification and recovery of valuable metals. According to the method provided by the invention, the influence of aluminum dissolution on recovery of other metals is reduced, the use of hydrogen peroxide is avoided, the process flow is shortened, the process cost is greatly reduced, the roasting and water leaching processes cannot corrode equipment, and the whole process cannot generate waste acid to cause secondary pollution.

The invention relates to the technical field of biochemical engineering and food processing, in particular to a fish collagen extraction process which comprises the following steps: S100, raw material pretreatment; s200, carrying out crushing and enzymolysis pretreatment; s300, carrying out an enzymatic hydrolysis reaction; s400, carrying out solid-liquid separation; s500, carrying out concentration treatment; and S600, drying treatment is carried out. The advanced spectrum analyzer is used for accurately determining the freshness of the fish body, the automatic cutting and ultrasonic cleaning technologies are combined, the quality of raw materials is effectively guaranteed, the enzymolysis reaction conditions are strictly controlled through the high-precision metering pump and the heat exchange system, the enzymolysis efficiency and the product quality are improved, and the production cost is reduced. By adopting a multi-layer composite membrane structure and a specific concentration technology, the efficiency and purity of solid-liquid separation and concentration treatment are remarkably improved, the production process is optimized, the energy consumption and the cost are reduced, pollutants in the production process are effectively removed through application of a plasma cleaning and air purification system, and the product quality is improved. And reliable guarantee is provided for production of high-quality fish collagen products.

The invention provides a method for synchronously extracting tea seed oil and tea saponin from tea seeds, and belongs to the technical field of active substance extraction. According to the method, the extraction rate and the purity are remarkably improved by finely regulating and controlling the extraction conditions. The specific composite oil extraction auxiliary agent and the ultrasonic-assisted extraction technology are adopted, and the power, time and solvent ratio are optimized, so that the extraction efficiency and the product quality of the tea seed oil and the tea saponin are superior to those of the tea seed oil and the tea saponin prepared by a traditional method. Experimental data prove that the extraction rate of the tea seed oil reaches 27.22%, and the purity of the tea seed oil reaches 99.66%; the extraction rate of the tea saponin is 21.85%, and the purity of the tea saponin reaches 96.50%. By increasing the utilization rate of the raw materials and reducing the production cost, the market competitiveness of the product is improved, the high-quality tea seed oil and tea saponin meet the requirements of the market for natural products, and the tea seed oil and tea saponin have wide application prospects.

The invention discloses a recycling method of a waste lithium-ion power battery negative electrode material, which comprises the following steps: deconstructing the waste battery negative electrode material through selective plasma electrolysis, separating organic matters and electrolyte to obtain untreated negative electrode powder, and drying the untreated negative electrode powder to obtain the waste lithium-ion power battery negative electrode material. The powder is refined into uniform particles by adopting a supercritical fluid cooling and crushing technology, the physical structure of the powder is kept, metal elements such as lithium, nickel and cobalt are extracted by utilizing a multi-frequency resonance auxiliary ion exchange technology, impurities are removed, further purification is performed by adopting a superconducting magnetic separation technology and a nanoscale aerosol separation technology, and a high-purity metal solution is generated; metal compounds are generated through an intelligent self-adaptive phase change precipitation technology and are reduced into recyclable metal materials through biological catalytic deposition, the whole recovery process is monitored and optimized through a closed-loop circulation intelligent feedback system, the metal recovery rate is maximized, and harmless treatment is ensured.

The invention relates to the technical field of essential oil extraction and analysis, in particular to a vitex trifolia leaf essential oil extraction and component analysis and identification method which comprises the following steps: S1, pretreatment of vitex trifolia leaves: flushing the vitex trifolia leaves with clear water for 10-15 minutes, drying moisture on the surfaces of the vitex trifolia leaves, preparing an extraction device, setting the extraction device to be in an initial state, and extracting the vitex trifolia leaves; putting vitex trifolia leaves into an extraction device; s2, squeezing the vitex trifolia leaves: squeezing the vitex trifolia leaves of which the surface moisture is dried by an extraction device for 5-10 minutes to obtain squeezed vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s3, grinding the vitex trifolia leaves: grinding the squeezed vitex trifolia leaves for 10-15 minutes through an extraction device to obtain ground vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s4, filtering vitex trifolia leaf essential oil: filtering vitex trifolia leaves and the vitex trifolia leaf oil-water mixture through an extraction device to obtain a vitex trifolia leaf oil-water mixture; s4, extracting vitex trifolia leaf essential oil; the device has comprehensive functions and can effectively improve the extraction efficiency.

The invention discloses a process method for preparing fish collagen tripeptide and application of the fish collagen tripeptide, and belongs to the technical field of collagen peptide preparation processes. According to the method, the raw material fish skin is subjected to pretreatment and pretreatment, and then the pretreated fish skin is subjected to two times of enzymolysis treatment, so that efficient hydrolysis of fish skin collagen is realized, and a collagen peptide product with small molecular weight is obtained. Firstly, neutral protease and papain are used for carrying out primary enzymolysis on fish skin, then a microbial fermentation agent and an activity accelerant are used for carrying out deep fermentation enzymolysis treatment, peptide fragments can be effectively further cut, the yield of small molecule peptide fragments is increased, and the biological activity is improved. The method is simple, the process is easy to control, environmental pollution is avoided, the enzymolysis time is short, the enzymolysis speed and the extraction rate of the collagen peptide can be increased, and the collagen peptide obtained through the method is low in molecular weight, good in biological activity and easier to popularize and apply.

The invention relates to the technical field of extraction of active ingredients of fermented plants, in particular to an extraction method of active ingredients of microbial fermented plants for resisting wrinkles, which comprises the following steps: step S1, preparing materials; step S2, primary fermentation extraction; step S4, secondary fermentation extraction; step S4, cell lysis; and step S5, filtering. According to the method, a mixed fermentation mode of lactobacillus plantarum and saccharomyces cerevisiae is used for plants to be extracted, in the fermentation process, foam and bubbles generated by fermentation are monitored and analyzed in combination with an image recognition technology to represent the fermentation process and the fermentation rate, the stirring rotating speed is adaptively adjusted according to the foam output, or the foam is discharged in time, so that the extraction efficiency is improved. The needed fermentation extraction effect and the minimum foam output are achieved, whether the fermentation extraction process tends to be stable or not is represented through the bubble generation frequency, fermentation extraction nodes are automatically and accurately determined, the stability of target active ingredients is guaranteed, the extraction rate is increased, and the active ingredients of fermented and extracted plants are prevented from being damaged.

The invention relates to the technical field of grease processing, in particular to a preparation method for extracting refined vegetable oil fatty acid. A preparation method for refined vegetable oil fatty acid extraction comprises the following steps: vegetable oil refining treatment and refined vegetable oil fatty acid separation and extraction. In the vegetable oil refining treatment process, the degummed vegetable oil is subjected to deacidification and decolorization treatment by using the modified rice hull-based porous carbon, so that pigments, free fatty acids and heavy metal components in the vegetable oil can be efficiently adsorbed, the effects of adsorption, deacidification and decolorization are achieved at the same time, and the vegetable oil refining efficiency is effectively improved; vegetable oil refining quality is improved, so that the extraction effect of refined vegetable oil fatty acid is improved; in the separation and extraction process of fatty acid in the refined vegetable oil, the contact between urea and saturated fatty acid in the refined vegetable oil can be promoted by adding the crystallization inclusion additive, and a stably-clathrated composite crystal is quickly formed, so that the extraction purity of unsaturated fatty acid is improved.

The invention discloses a gastrodia elata polypeptide extraction process, and belongs to the technical field of polypeptide extraction. According to the method, gastrodia elata cell membranes are broken through acetone pretreatment, so that protein and lipid are dissociated, trimethylsilyl ether passivates active groups, immobilized enzyme decomposes cellulose and adipose tissues through normal-temperature enzymolysis, a protein stabilizer prevents oxidation and inhibits enzyme activity, differential pressure extraction is combined with a sodium pyrophosphate buffer solution, polypeptide is promoted to be dissolved out, and activity is maintained; the high extraction rate of the gastrodia elata polypeptide and low-active group destructiveness are realized. Reaction sites and binding force are increased by epoxy groups on the surface of an immobilized enzyme carrier prepared by modifying corn starch, enzyme molecules are stable and appropriate due to good biocompatibility, enzyme molecule conformation is optimized through covalent binding, a rigid structure is enhanced, enzyme activity is kept at a high level for a long time, continuous and efficient enzymolysis is performed in gastrodia elata polypeptide extraction, and the gastrodia elata polypeptide extraction efficiency is improved. Compared with the traditional free enzyme, the gastrodia elata polypeptide enzyme has the advantages that the enzyme use cost is reduced, the enzyme consumption and waste generation are reduced, and an efficient and economical scheme is provided for gastrodia elata polypeptide extraction.

The invention discloses a cubilose peptide with ACE inhibitory activity and a preparation method and application thereof, the cubilose peptide with the ACE inhibitory activity is prepared through enzymolysis, meanwhile, LC-MS / MS analysis is performed on peptides in enzymatic hydrolysate, a peptide fragment with potential ACE inhibitory activity is screened out in combination with a bioinformatics means, and the obtained peptide fragment has high ACE inhibitory activity through synthesis verification. The bird's nest ACE inhibitory peptide disclosed by the invention has a good application prospect in functional foods or health-care products and food-borne medicines.

The invention relates to a ginseng and ganoderma lucidum preparation with anti-oxidation and anti-aging effects and application of the ginseng and ganoderma lucidum preparation with the anti-oxidation and anti-aging effects, ginseng and ganoderma lucidum are used as main components, and the ginseng and ganoderma lucidum preparation with the anti-oxidation and anti-aging effects is obtained through a specific preparation technology.

The invention relates to an extraction and purification method of green tea cell wall polysaccharide with hypoglycemic activity and the obtained green tea cell wall polysaccharide. The green tea is extracted by using water, CDTA, saturated sodium carbonate, 1M NaOH solution and 4M NaOH solution through a sequential extraction method to obtain five different tea polysaccharides; the green tea cell wall polysaccharide with the best hypoglycemic activity is screened out through activity inhibition of glycometabolism enzyme, and is further purified by gel column chromatography. Compared with the prior art, the method has the advantages that the reaction conditions in the whole operation process are mild, the activity of the green tea cell wall polysaccharide can be reserved to the greatest extent, the loss of polysaccharide components is reduced to the greatest extent, the extraction rate is high, the energy consumption is low, the solvent dosage is small, the operation is simple, and the economic cost is low; a foundation is laid for researching the physicochemical property and biological activity of the green tea cell wall polysaccharide, and the method has important significance on utilization of the green tea cell wall polysaccharide in the fields of food, medical care, cosmetics and the like.

The invention relates to the technical field of diglyceride oil, and discloses a diglyceride-containing grease composition and a preparation method thereof. According to the present invention, a variety of vegetable oils are combined, the combined vegetable oil is subjected to glycerol diesterification, and the turmeric is directly extracted by using the oil after the enzymolysis so as to integrally prepare the curcumin-containing diglyceride oil; according to the present invention, the mass content of diglyceride in the diglyceride oil prepared by combining a plurality of vegetable oils is 40-95%, the mass content of oryzanol is 10000-20000 ppm, the mass content of sterol is 8000-10000 ppm, and the mass content of curcumin is 0.1-0.2%, such that the diglyceride, the oryzanol, the sterol and the curcumin in the diglyceride oil are subjected to a specific content and proportion so as to prevent the color reversion of the oil composition, such that the color reversion of the oil composition can be prevented, and the oil composition can be easily obtained. The grease composition keeps bright appearance and has the advantage of being good in stability.

The invention provides application of sturgeon swimming bladder collagen peptide in preparation of a medicine for premature ovarian failure, and relates to the technical field of protein peptide. According to the method, the sturgeon swim bladder is subjected to resource utilization, so that the waste of the sturgeon swim bladder can be effectively reduced, the sturgeon resource can be sustainably utilized, the extraction rate of the sturgeon swim bladder collagen is relatively high, and industrial production is facilitated; meanwhile, collagen peptide obtained after enzymolysis treatment is conducted through alkaline protease can achieve the effects of preventing, treating, inhibiting and improving the premature ovarian failure.

The invention discloses a preparation method of Chuzhou chrysanthemum water-soluble polysaccharide and application of the Chuzhou chrysanthemum water-soluble polysaccharide as a rice juice stabilizer, and belongs to the technical field of Chuzhou chrysanthemum polysaccharide extraction.The preparation method comprises the steps that firstly, Chuzhou chrysanthemum is soaked and pretreated with ethyl alcohol, then the ethyl alcohol is removed, and pretreated chrysanthemum filter residues are obtained; 2, the obtained pretreated chrysanthemum filter residues are subjected to water extraction, a sodium bicarbonate water solution serves as a water extraction system, and first-step treatment is conducted for 5-10 min under the dual-action conditions of 10-15 KHz ultrasonic treatment and 200-300 Mpa pressure; then carrying out intermittent 10-15 KHz ultrasonic treatment, and carrying out second-step treatment for at least 1 hour under the conditions that the air pressure is 50-60 kpa and the temperature is 80-86 DEG C, so as to obtain a water extraction filtrate; 3, mixing the obtained water extraction filtrate with ethanol, and precipitating, wherein the ethanol concentration in the mixed system is 35-50%; and 4, collecting the precipitate, dissolving the precipitate, dialyzing with running water, and freeze-drying to obtain the water-soluble polysaccharide of Chuzhou chrysanthemum. According to the method, the polysaccharide obtaining rate is increased.

The invention relates to the technical field of agricultural fertilizers, and discloses a preparation method of an amino acid foliar fertilizer extracted based on animal hair, and the preparation method comprises the following steps: raw material pretreatment: carrying out plasma modification on animal hair to improve the keratin hydrolysis performance; a double hydrolysis process: firstly decomposing a keratin structure in the hair through sulfuric acid hydrolysis, and then generating free amino acid through enzyme hydrolysis; recycling by-products: preparing biochar or protein feed from undissolved residues generated in the hydrolysis process, and separating and recycling amino acids and salts in waste liquid; and preparing a foliar fertilizer formula: chelating the extracted amino acid concentrated solution with trace elements. The technical effects of zero emission and high-valued conversion of wastes are achieved through a resource utilization scheme that biochar is prepared from undissolved residues through a pyrolysis process or protein feed is prepared from the undissolved residues through secondary enzymolysis, and free amino acids and salts in waste liquid are separated and recycled through a membrane separation and crystallization extraction technology.

The invention discloses a method for extracting a high-concentration seafood-flavor raw material from kelp and clam, which comprises the following steps of: crushing the kelp and clam, adding a proper amount of distilled water and protein compound enzyme into the kelp and clam, and performing enzymolysis under a certain enzymolysis condition; the preparation method comprises the following steps: taking papain, pancreatin, neutral protease and flavourzyme as enzymolysis combined liquid, performing enzymolysis and enzyme deactivation on the raw material homogenate, inoculating saccharomyces cerevisiae suspension into the enzymolysis liquid according to the inoculation amount of 5%, performing fermentation and fishy smell removal to obtain homogenate fermentation liquid, performing centrifugal filtration on the homogenate fermentation liquid, and performing ultrafiltration on the homogenate fermentation liquid. The extraction rate of the seafood flavor raw materials in the kelp and the clam is further improved through the excellent enzymolysis capacity of the enzymolysis combined liquid, so that the more thorough raw material utilization rate is achieved, the enzymolysis process of the compound enzyme is simple and easy to achieve, and the raw materials do not need to be subjected to other pretreatment in the using process.

The invention discloses application of a benzyltrimethyl eutectic solvent in extraction of amaranth red dye, and belongs to the technical field of eutectic solvents. The method comprises the following steps: putting an ABS (Acrylonitrile Butadiene Styrene) solution formed by a benzyltrimethyl eutectic solvent and K3PO4 into an aqueous solution containing amaranth, and extracting the amaranth dye under a constant-temperature stirring condition. The benzyltrimethyl eutectic solvent is synthesized from benzyltrimethyl ammonium chloride and triethylene glycol. An ABS (Acrylonitrile Butadiene Styrene) solution formed by the benzyltrimethyl deep-eutectic solvent prepared by the invention and K3PO4 has relatively strong trapping capacity on amaranth dye, and the extraction efficiency of the amaranth dye is up to 98.1% under the condition that the mass ratio of the ABS solution to an aqueous solution containing amaranth is 1: 1. Meanwhile, the benzyltrimethyl eutectic solvent has the advantages of simple synthesis, low price and the like.

The invention belongs to the technical field of purification processes, and particularly relates to an enzymolysis extraction method of ginseng polysaccharide and application of the ginseng polysaccharide in food. The enzymolysis extraction method comprises the following steps: S1, drying a ginseng medicinal material, crushing, sieving with a 30-50-mesh sieve to obtain dry ginseng powder, adding distilled water, decocting for 2-4 hours, extracting for 2-3 times, combining decoction, concentrating, adding ethanol until the alcohol content of a system is greater than or equal to 80%, standing for 24 hours, centrifuging to obtain a precipitate, and drying the precipitate; s2, mixing the dried precipitate with distilled water, and adding enzyme for enzymolysis extraction to obtain an extracting solution; s3, concentrating the extracting solution until the volume of the extracting solution is 20-25% of that of the extracting solution, centrifuging to remove precipitates, dialyzing, and concentrating and drying to obtain crude ginseng polysaccharide; and S4, dissolving the crude ginseng polysaccharide in distilled water for separation and purification. The variety, adding sequence and conditions of the enzymes are optimized, the extraction rate and purity of the ginseng polysaccharide are improved, and meanwhile the biological activity of the ginseng polysaccharide is kept. The extracted ginseng polysaccharide can be widely applied to various foods.

The invention discloses argon recovery equipment with the high extraction rate and a working method thereof.The argon recovery equipment with the high extraction rate comprises an argon extraction unit, the argon extraction unit comprises a pure argon pipe set, a first valve set and an argon extraction mechanism, and the pure argon pipe set comprises a first treatment pipe set and a second treatment pipe set; the first treatment pipe group comprises a first material receiving pipe, a second material receiving pipe and a liquid nitrogen connecting pipe, the second treatment pipe group comprises a first dirty argon guide pipe, a dirty liquid argon guide pipe, two backflow pipes, a second dirty argon guide pipe and a supplementing pipeline, and the first valve group comprises a feeding throttling valve and a first liquid nitrogen throttling valve. The argon extraction mechanism comprises a crude liquid argon treatment component and a dirty argon treatment component, the crude liquid argon treatment component comprises a pure argon tower and a nitrogen reboiler, the dirty argon treatment component comprises a nitrogen evaporator and a re-extraction assembly, and the re-extraction assembly comprises an argon synergistic tower. Compared with a common recovery mode, the treatment efficiency is high, the extraction rate of argon reaches 98% or above, and waste of argon resources is reduced.

The invention provides a method for recovering sodium thioglycolate from ethionine ester synthesis wastewater. The method comprises the following steps: firstly adjusting the pH value, converting sodium thioglycollate in the wastewater into thioglycollic acid, then extracting the thioglycollic acid in the synthetic wastewater by adopting an organic phase with a neutral phosphorus extraction agent as a main component, then enriching the sodium thioglycollate in strip liquor through washing and reverse extraction, and adding low alcohol into the strip liquor to change the polarity of the solution, so that the sodium thioglycollate in the wastewater is obtained. The method has the characteristic of low energy consumption, and meanwhile, the purity of the sodium thioglycolate product is high.

The invention discloses a method for simultaneously extracting starch and protein and application thereof. The invention belongs to the technical field of corn deep processing. The invention aims to solve the technical problems that the existing method is low in production efficiency and the obtained corn starch and corn protein are poor in processing characteristic and digestion characteristic. The method comprises the following steps: (1) performing vacuum low-temperature alkalization cooking on corn kernels in a calcium hydroxide solution; (2) performing ultrasonic-high static pressure cooperative treatment after cooking, and then soaking; (3) performing coarse grinding on the soaked corn kernels, then performing fine grinding, and performing enzymolysis with compound protease; and (4) finely grinding, filtering, standing, centrifuging, washing with water, precipitating, respectively collecting a lower-layer white part and an upper-layer yellow part, and freeze-drying to respectively obtain the corn starch and the corn protein. The method improves the processing characteristics of starch and the digestion characteristics of protein, and can be applied to development and production of high-quality corn starch or corn protein-based food.

The invention discloses an exosome extraction method based on plant juice characteristics. The method comprises the following steps: firstly, according to the characteristics of plant juice, dividing samples into four types, namely a clear low-viscosity type sample, a medium-thick type sample, a high-viscosity type sample and a high-fiber type sample, and adopting different pretreatment modes: washing the clear type sample, cutting into blocks, and directly juicing; performing enzymolysis after medium-concentration washing and juicing; performing enzymolysis after high-viscosity homogenate juicing; and the high-fiber type is firstly subjected to enzymolysis and softening, and then homogenate and squeeze juice. Removing impurities through two-step differential centrifugation, and finally obtaining the high-purity exosome through ultrafiltration concentration, PEG precipitation, PBS resuspension and filtration. According to the method disclosed by the invention, various means such as physical crushing, enzymolysis, differential centrifugation, ultrafiltration and precipitation are comprehensively utilized, so that the yield and purity of the exosome are greatly improved, the varieties of plants for preparing the exosome are widened, and a technical support is provided for application research of the plant exosome.

The invention provides a method for preparing an advanced oxidation catalyst from a waste sagger in the production process of a lithium battery positive electrode material. The method comprises the following steps: mechanically polishing the inner surface of the waste sagger to obtain metal-containing ceramic powder; leaching with acid to obtain an acid leaching solution containing metal ions and leaching residues; concentrating the pickle liquor to obtain concentrated liquor; adding an auxiliary agent into the leaching residue, uniformly mixing, molding, and calcining to obtain a catalyst carrier; putting into a concentration adjusting solution, fully dipping and adsorbing, taking out, drying and lightly burning, and repeating the dipping-drying-lightly burning process to obtain a catalyst precursor; and finally calcining to obtain the catalyst. The method is simple in process, high in feasibility and low in cost, industrial preparation is easy to achieve, comprehensive utilization of transition metal elements and ceramic components in the waste saggar can be fully achieved, and the high-grade oxidation catalyst for efficiently catalyzing potassium peroxymonosulfate to degrade organic pollutants is obtained; the method has important significance on comprehensive and high-value utilization of the waste saggar in the positive electrode material industry and development of an industrial-grade advanced oxidation catalyst.

The invention discloses an agkistrodon halys peptide composite probiotic solid beverage and a preparation method of the agkistrodon halys peptide composite probiotic solid beverage. Comprising the following raw materials in parts by weight: 12 to 17 parts of ginseng oligopeptide powder, 12 to 17 parts of soybean oligopeptide powder, 5 to 10 parts of agkistrodon halys peptide powder, 10 to 15 parts of ganoderan, 15 to 20 parts of fructo-oligosaccharide, 15 to 20 parts of glucose, 8 to 12 parts of cranberry powder, 0.5 to 1.5 parts of anhydrous citric acid, 5 to 10 parts of bifidobacterium bifidum BGN4, 7 to 13 parts of gamma-aminobutyric acid, 5 to 10 parts of yeast beta-glucan and 0.04 to 0.07 part of vitamin E. According to the solid beverage, various active peptides such as the agkistrodon halys peptide, the ginseng oligopeptide and the soybean oligopeptide are compounded with the probiotics and the dietary fibers, the bioavailability of all the components is improved, absorption of peptide substances can be promoted through the activity of the probiotics, and meanwhile the immunity of the organism can be remarkably enhanced through the synergistic effect of various functional components.

The invention relates to the technical field of extraction of plant essential oil, in particular to an extraction process of natural plant essential oil, which comprises the following steps: obtaining a flowering flower top of a natural plant, cutting and separating the flower top, and then separating again through a screen to obtain petals for later use; after petals are smashed, high-quality petals are screened out, cleaned with clear water and dried; placing the dried petal fragments in a distillation tower, and collecting various distillation monitoring data at each moment in the distillation tower; determining a distillation environment interference value at each moment; control parameters of a PI controller are adjusted, and the distillation temperature and the steam flow are adjusted in real time through the PI controller; after distillation is finished, essential oil in petal fragments is collected; and placing the collected essential oil in the distillation tower again, carrying out secondary rectification, and adjusting the distillation temperature and the steam flow to obtain the extracted plant essential oil. The method improves the extraction rate of the high-quality plant essential oil.

The invention discloses a natural hirudin extraction method based on cell fermentation. The natural hirudin extraction method comprises the following steps: S1, providing leeches, and carrying out starvation treatment on the leeches; s2, taking out the leeches, cleaning the leeches with a metaldehyde solution, and then putting the leeches into purified water for cleaning; s3, inducing and stimulating the leeches, and collecting secretory fluid; s4, extracting hirudin in the secretion on the basis of cell fermentation to obtain fermentation liquor; s5, carrying out separation and purification treatment on the fermentation liquor based on ammonium sulfate fractional precipitation salting-out; and S6, further separating and purifying the fermentation liquor based on ion exchange chromatography. According to the method, the components of the leeches are utilized, the extraction rate of the hirudin is further improved through cell fermentation, a two-stage separation and purification system is established, the purification process is optimized, and the recovery rate and the purification effect of the hirudin are further improved.