953 results about "Lecithin" patented technology

The invention relates to a mild exfoliating whitening and repairing body care composition as well as a preparation method and application thereof. The mild exfoliating whitening and repairing body care composition is prepared from the following components in parts by weight: 5 to 10 parts of lipidosome, 0.01 to 1 part of papain and 0.005 to 0.5 part of bromelain, wherein the liposome comprises a shell layer and a core layer, the shell layer comprises lecithin and phytosterol, and the core layer comprises a golden camellia extract and hydrolyzed royal jelly protein; the liposome is prepared from the following raw materials in parts by weight: 2 to 15 parts of lecithin, 0.1 to 5 parts of phytosterol, 0.1 to 3 parts of golden camellia extract and 0.01 to 1 part of hydrolyzed royal jelly protein. The composition can realize multiple effects of brightening skin color, removing waste cutin and strengthening skin, and is safe, mild and non-irritant.

The invention discloses a scalp essence capable of controlling oil and removing dandruff and a preparation method thereof, and provides the scalp essence capable of controlling oil and removing dandruff. The formula consists of the following raw materials: water, saccharomycetes / rice fermentation product filtrate, butanediol, phenoxyethanol, caprylic acid / capric triglyceride, galactose yeast-like bacterium fermentation product filtrate, allantoin, a saccharomycetes / zinc fermentation product, nicotinamide, arginine, polysorbate-20, hydrogenated lecithin, acrylic acid (ester) / C10-30 and an alkanol acrylate cross-linked polymer. Hydrolyzed sodium hyaluronate and trace components. According to the oil-controlling and dandruff-removing scalp essence disclosed by the invention, through the synergistic interaction among the raw materials, the effects of replenishing water, preserving moisture, controlling oil and removing dandruff are increased, the effects of relieving, recovering oil-water balance, recovering skin elasticity and delaying senescence are also achieved, the effects of preventing hair loss and nourishing hair are also achieved, and meanwhile, the oil-controlling and dandruff-removing scalp essence has the advantage of being stable in storage.

The invention relates to a preparation method and application of an artificially synthesized exosome with an anti-aging effect, and belongs to the technical field of cosmetics and biology. The artificially synthesized exosome is prepared from hydrogenated lecithin, phytosphingosine, cholesterol, ceramide, squalane, sodium stearoyl glutamate, a surface modification structure, polyol, an active component and water. The preparation method comprises the steps of preparation of an alcohol phase, preparation of a water phase, preparation of a mixed solution and high-pressure homogenization treatment. The artificially synthesized exosome prepared by the preparation method provided by the invention is good in stability and high in anti-aging activity.

The invention relates to an oral mucosa repairing medicine and a preparation method thereof, and belongs to the technical field of medicines, the medicine comprises barnacle peptide, salivary lactobacillus, resveratrol, a biphasic adhesion matrix, hydroxyapatite, vitamin B family and other components. The preparation method comprises the following steps: sequentially carrying out enzymolysis on barnacle gooseneck by pepsin and lumbrukinase to obtain barnacle peptide. The double-phase adhesion matrix comprises a water-phase matrix, an oil-phase matrix and lecithin; the water-phase matrix contains a chondroitin sulfate-chitosan quaternary ammonium salt compound, sodium alginate and other components; the oil-phase matrix comprises sesame oil, beeswax, a polylactic acid-glycolic acid copolymer and the like. According to the invention, barnacle peptide and salivary lactobacillus are prepared by adopting a special method and are matched with resveratrol for use, so that multi-target and multi-path promotion of oral mucosa repair can be realized; the chondroitin sulfate-chitosan quaternary ammonium salt compound is prepared through electrostatic and physical embedding, the chondroitin sulfate-chitosan quaternary ammonium salt compound is matched with other components to prepare the biphasic adhesion matrix, the biocompatibility is good, the adhesion is high, and the action time of a sustained-release drug is well prolonged.

The invention relates to bionic skin barrier cream with a three-layer phospholipid structure and a preparation method of the bionic skin barrier cream, and belongs to the technical field of cosmetics, the bionic skin barrier cream comprises the following raw materials: lecithin, wax ester, triglyceride, composite ceramide, phytosterol oleate, squalane, an antioxidant, polyol, composite amino acid, pyrrolidone carboxylic acid, urea and arginine. A stabilizing agent, a treating agent and the balance of deionized water. The bionic skin barrier cream prepared by the invention has a three-layer phospholipid structure, and compared with a double-layer phospholipid structure in the market, the firmness and hydrophobicity of the double-layer structure are further improved by the added third-layer structure, so that the prepared bionic skin barrier cream has outstanding waterproof, sweat-resistant and light pollution-resistant effects; in addition, the wax ester, the triglyceride, the phytosterol oleate, the pyrrolidone carboxylic acid and the urea selected in the invention have a synergistic effect, and can generate excellent moisturizing and repairing effects and certain protection effects.

The invention provides an extraction method of hirudin, an oral preparation containing the hirudin and a preparation method of the oral preparation, and belongs to the technical field of leech processing and traditional Chinese medicine. The hirudin extraction method comprises the following steps: S1, soaking fresh leeches in a freeze-drying protective agent, taking out the leeches, wiping the surfaces of the leeches, pre-freezing the leeches at the temperature of 40 DEG C below zero to 50 DEG C below zero for 1-2 hours, and freeze-drying the leeches at the temperature of 20 DEG C below zero to 30 DEG C below zero for 4-6 hours to obtain freeze-dried leeches; s2, crushing the freeze-dried leeches, adding the crushed leeches into water, adding enzyme and lecithin, performing enzymolysis for 4-6 hours under the conditions that the temperature is 35-40 DEG C and the pH value is 7.5-8.5, and cooling to room temperature to obtain an enzymolysis product; s3, sterilization, ultrafiltration and drying are conducted, and hirudin is obtained. The hirudin extracted by the method is high in activity and high in recovery rate.

The invention discloses a preparation process of crocodile penis peptide wine for improving kidney deficiency, and relates to the technical field of biology, the process comprises the steps of raw material pretreatment, collaborative graded enzymolysis, starter propagation, sand feeding, sand roughening, starter addition and stacking fermentation, distillation for wine taking and fine adjustment. Wherein the synergistic graded enzymolysis adopts a mixed enzymolysis technology, lecithin and phytic acid are added, and natural pH gradient is combined, so that the problems of wine precipitation and taste layering are effectively solved, and the product stability and the polypeptide retention rate are improved. Meanwhile, a traditional Chinese medicinal material compound formula is fused in the process, and the health-care effect is enhanced through the synergistic effect of enzymolysis and fermentation. The wine can significantly increase the content of testosterone in serum and the physical endurance, and improve the symptom of kidney deficiency. The method is mature in process, high in product quality and suitable for large-scale production.

The invention belongs to the field of biological medicines, and relates to a drug-loaded nano-vesicle as well as a preparation method and application thereof. The drug-loaded nano-vesicle comprises a vesicle core and a drug-loaded nano-vesicle, wherein the vesicle core comprises siRNA (small interfering Ribonucleic Acid) capable of specifically targeting and silencing an NR1D1 gene; the vesicle membrane is formed by fusing an erythrocyte membrane, a macrophage membrane, cardiolipin, cholesterol and lecithin. The drug-loaded nano-vesicle can specifically target macrophages in a sepsis immunosuppression stage, has an intracellular response release function, recovers BMAL1 and IGF2BP2-ATP6V1B2 / ATP6V0c axis functions by inhibiting NR1D1 expression, reconstructs a macrophage phagocytosis function and lysosome-dependent bacterium removal capability, and can be used for preparing a drug-loaded nano-vesicle with a specific targeting function. The survival rate of sepsis immunosuppression model animals is obviously improved; and the bacterial load is reduced. Compared with a traditional electroporation method, the preparation method disclosed by the invention has the advantage that the encapsulation efficiency of siRNA is remarkably improved.

The invention discloses a raw material composition of bionic esters, D-phase gel, application and cosmetics. The biomimetic ester is prepared from the following raw material compositions: phytosterol isostearyl alcohol dimer linoleate, phytosterol / isostearyl alcohol / cetyl alcohol / stearyl alcohol / behenyl alcohol dimer linoleate, hydrogenated lecithin and polyhydric alcohol. The bionic ester raw material composition disclosed by the invention can be directly added into various cleaning products containing a surfactant, and the problems that the surfactant added into a washing-off cleaning product is easy to cause excessive skin degreasing, the washed skin is dry, and the skin feels tight can be solved by using a small addition amount; meanwhile, the cleaning power, the foam amount and the mildness of the cleaning product are not influenced. The D-phase gel formed by the raw material composition of the biomimetic esters prepared by the invention is arranged in a layered liquid crystal structure.

The invention relates to the technical field of cosmetics, and particularly discloses an oil-control moisturizing pressed powder with a multi-layer microporous structure and a preparation method of the oil-control moisturizing pressed powder. The oil-control moisturizing pressed powder with the multi-layer microporous structure is characterized by comprising powder, a first emulsion and a second emulsion, the first emulsion is prepared by mixing a first humectant, hydrogenated lecithin, C12-20 acid PEG-8 ester, polysorbate-80 and water; the second emulsion is formed by mixing a second humectant and water; the preparation method comprises the following steps: mixing and drying the powder and the first emulsion, and then mixing with the second emulsion to obtain slurry; and freeze-drying the slurry at-80 to-60 DEG C, then freeze-drying at-40 to-5 DEG C, and finally freeze-drying at-5 to 45 DEG C to obtain the pressed powder. A uniform three-dimensional micropore structure is formed in the oil-controlling and moisturizing pressed powder, more moisturizing components can be loaded, the contact area with the skin is increased, and therefore the oil-controlling and moisturizing pressed powder has excellent moisturizing performance and skin feeling.

The invention relates to an artificially synthesized no-load exosome capable of promoting permeation and having a repairing effect as well as a preparation method and application of the artificially synthesized no-load exosome, and belongs to the technical field of cosmetics and biology. The artificially synthesized no-load exosome comprises a membrane core structure, the membrane structure of the artificially synthesized exosome comprises hydrogenated lecithin, phytosphingosine, cholesterol, ceramide, squalane, sodium stearoyl glutamate and a surface modification structure, and the core of the artificially synthesized exosome comprises water. The artificially synthesized no-load exosome provided by the invention has good particle size uniformity, particle size stability, permeation enhancing performance, permeation enhancing effect stability and skin repairing effect.

The invention discloses an egg yolk lecithin separation and extraction device and a technology thereof, and relates to the technical field of separation and extraction, the egg yolk lecithin separation and extraction device comprises: a stirring barrel, the stirring barrel is arranged on the ground; the feeding hole is fixedly formed in the top of the stirring barrel; the solvent tank is fixedly mounted at the top of the stirring barrel, and a chloroform solution is arranged in the solvent tank; the separating funnel is fixedly mounted at the bottom of the stirring barrel, and the separating funnel is used for separating an egg phosphorus solvent from a water phase; the motor is fixedly mounted at the top of the stirring barrel; the stirring rod is fixedly mounted at the output end of the motor, and a reciprocating spiral groove is formed in the surface of the stirring rod; the stirring plate is fixedly mounted at the bottom of the stirring rod; the elastic telescopic rod enables egg yolk and chloroform on the sliding plate to be mixed more sufficiently through up-down movement of the sliding plate.

The invention discloses an essence composition containing lipidosome with an acne removing effect as well as a preparation method and application of the essence composition. The essence composition comprises the following components: 2-30% of lipidosome with the acne removing effect, 0.5-15% of a skin conditioner, 5-40% of a humectant, 0.1-3% of a preservative, 0.15-10% of a thickening agent, 0.05-5% of a chelating agent, 0.01-3% of a pH regulator and deionized water. The lipidosome with the acne removing effect is prepared from the following components in percentage by weight: 1.5 to 2.5 percent of white willow bark extract, 0.3 to 0.7 percent of Pinosine, 2 to 4 percent of rhizoma bletillae root extract, 4 to 6 percent of nicotinamide, 0.15 to 0.35 percent of oligopeptide-3, 7 to 12 percent of lecithin and 1 to 2 percent of cholesterol. In the preparation process, the lipidosome with the acne removal effect is reasonably compounded with other auxiliary material matrixes, so that efficient transmission and absorption of active ingredients can be promoted, irritation to skin can be effectively relieved, meanwhile, the overall effect of the essence is enhanced, the essence has mildness and high efficiency, and the high-efficiency requirement of consumers for the acne removal skin care product is met.

The invention discloses an application of tiopronin wrapped by ROS (reactive oxygen species) response hydrogel in preparation of a medicine for treating osteoarthritis. The ROS response hydrogel is prepared from the following components: tiopronin; the compound group of lecithin and ketal thiol (TK) is TK-NH22, 2 '-(propane-2, 2-diyl bis (sulfanilamide diyl)) diethylamine (sulfanediyl), and the compound group of lecithin and ketal thiol (TK) is TK-NH22, 2'-(propane-2, 2-diyl bis (sulfanilamide diyl)); 12 wt% of methyl cellulose, Na2HPO4. 12H2O and xylitol; according to the hydrogel, controlled release of tiopronin is achieved through an ROS response group, mitochondrial autophagy is enhanced by up-regulating a Bnip3-Pink1-Parkin signal channel, oxidative stress is inhibited, and the progress of osteoarthritis is delayed; compared with the prior art, the invention has the advantages that: the invention discloses an osteoarthritis treatment medicine with the effects of resisting inflammation, relieving pain and inhibiting cartilage degeneration for the first time, and discloses a knee joint intracavity administration route of tiopronin for the first time. Particularly, the tiopronin targeted activation Bnip3-Pink1-Parkin signal channel provided by the invention has a remarkable effect in the aspect of inhibiting the progress of OA, which proves that the medicine has a strong effect on the treatment of osteoarthritis.

The invention discloses a compound liposome, a freeze-dried powder injection as well as a preparation method and application of the freeze-dried powder injection. The compound lipidosome comprises a lipidosome membrane and an inner water phase encapsulated in the lipidosome membrane, the paclitaxel palmitate is encapsulated in a lipid bilayer of the liposome membrane; the gemcitabine or the salt thereof is encapsulated in the inner water phase; the compound liposome comprises the following raw materials: paclitaxel palmitate, lecithin, a polyethylene glycol derivative, gemcitabine or a salt thereof, an organic solvent and a buffer solution A; the molar ratio of the lecithin to the polyethylene glycol derivative is 1: (0.01-0.15). The compound liposome disclosed by the invention is relatively high in encapsulation efficiency (especially the encapsulation efficiency of PTX-PA is relatively good) and relatively high in safety, the preparation method is simple and easy to operate, the industrialization degree is high, and the prepared compound liposome has a relatively good long-circulation effect, a relatively good anti-tumor effect and good in-vivo tolerance.

The invention discloses a method for producing feed by using corn sugar residues, and belongs to the technical field of fermentation. The method comprises the following steps: pretreating, proportioning, adding an antibacterial agent, fermenting, drying and crushing, coating, cooling and the like, mixing corn sugar residues, corn germ meal and threonine mother liquor according to a specific ratio, adding zinc oxide and a chitosan antibacterial agent, and inoculating Saccharomyces cerevisiae ATCC 9763 for fermenting. And performing multi-stage drying and crushing on the fermentation product, spraying a coating emulsion prepared from a defatted soybean meal extract, curcumin, vitamin E, lecithin and sophorolipid, and performing air cooling to prepare the feed. According to the method, by-products are fully utilized, the crude protein content of the feed is 32-34.5%, the diameter of an inhibition zone is 18.1-20.2 mm, the moisture absorption rate is 2.7-3.4%, the palatability score is 8.0-8.6, and the fermentation yield is 92-94%. The innovation point lies in specific strain fermentation and functional coating, and is suitable for industrial production.

The invention discloses a preparation method of non-denatured II-type collagen for promoting bone and cartilage growth, and belongs to the technical field of II-type collagen extraction.The preparation method comprises the following steps that 1, pretreatment is conducted; (2) soaking in a salt solution: adding the salt solution into the cartilage particles for soaking treatment to obtain a precipitate; (3) soaking in an organic solvent; and (4) drying and crushing the solid matter to obtain the traditional Chinese medicine composition. The salt solution is prepared from the following components in percentage by mass: 1 to 5 percent of sodium chloride, 0.2 to 0.8 percent of lecithin, 0.3 to 1 percent of plant extract and the balance of water; the plant extract is a water extract of rhizoma kaempferiae, chicory and houttuynia cordata; the organic solvent is an ethanol water solution and pullulan polysaccharide. According to the method disclosed by the invention, the saline solution is improved, so that the structural stability of the collagen is improved while the dissolution of non-collagen components is promoted, the denaturation of the type II collagen is avoided, and the extraction efficiency of the non-denatured type II collagen is improved.

The invention discloses a slow-release coal gangue and urea compound fertilizer and a preparation method thereof, and the specific method comprises the following steps: wetting coal gangue by using saponin, carrying out thermal modification on the coal gangue by using a hydrothermal method, fixing heavy metal ions in the coal gangue thermal modifier by using gelatin, and carrying out lecithin wrapping and ultrasonic action to obtain the slow-release coal gangue and urea compound fertilizer. And finally, mixing the reaction product of the coal gangue thermal modifier and gelatin and the reaction product of tannic acid and urea, preparing fertilizer particles under the bonding action of sodium carboxymethyl cellulose and polyvinylpyrrolidone, and performing microwave irradiation treatment to obtain the slow-release coal gangue and urea compound fertilizer. The method is ingenious in conception and simple in process and operation, the prepared compound fertilizer contains nitrogen and trace elements and has good slow release performance, the content of heavy metal ions meets the requirement for the limited quantity of toxic and harmful substances in the fertilizer, and the heavy metal ions are not prone to migration, so that the fertilizer is safe and wide in application range.

The invention relates to the technical field of feed additives, and discloses a ruminant animal fattening and growth-promoting feed additive which comprises the following components in percentage by mass: 22-28 parts of phytosterol, 42-48 parts of a rumen protection type amino acid compound, 11-14 parts of a compound probiotic preparation, 6-7.5 parts of a compound enzyme preparation, 9-11 parts of a trace element compound and 4-4.8 parts of a buffer system. According to the preparation method of the fattening and growth-promoting feed additive for ruminant animals, a modified hydrogenated palm oil and lecithin compound is used as a rumen protection type amino acid coating material, and a high-pressure homogenizer is used for performing multi-stage homogenizing treatment, so that a coating layer is more compact in structure, and the weight of the coating layer is increased; the rumen microorganism lipase decomposition resistance is enhanced through the synergistic effect of the composite material, particle distribution is optimized in combination with a refined homogenizing process, the release controllability and absorption efficiency of amino acid in small intestines are improved, and the problems that a traditional single coating material is easy to decompose and the particle size is extensively controlled are solved.

A preparation method of plant compound essential oil comprises the following steps: preparing mixed powder from dried lemon slices, mint and litsea coreana, carrying out carbon dioxide supercritical extraction, and collecting an extract; the preparation method comprises the following steps: dropwise adding a carboxymethyl-beta-cyclodextrin solution into a mixture of eugenol and thymol, carrying out ultrasonic treatment to obtain an ultrasonic mixed solution, standing, centrifuging, collecting supernate, and drying to obtain a white powdery inclusion compound; and adding lecithin, Tween 80, disodium pyrophosphate and deionized water into the extract, heating and stirring, continuing to add the inclusion compound, homogenizing to obtain a nano-emulsion, adding gelatin and propylene glycol, heating and preserving heat, and cooling to obtain the plant composite essential oil. The compound essential oil disclosed by the invention has antibacterial and antioxidant effects, and has relatively strong antibacterial ability on botrytis cinerea and penicillium germs, and the DPPH free radical scavenging rate is greater than or equal to 90%. According to the invention, the active ingredients of the essential oil are wrapped by carboxymethyl-beta-cyclodextrin and synergistically embedded by lipidosome through a nano-embedding technology to realize slow release, so that the antioxidant and antibacterial properties are effectively prolonged.

The invention discloses a preparation method of immunoglobulin composite liposome nanoparticles with a controlled release characteristic, and belongs to the field of food nutrition and functional factors. Cholesterol and sitosterol are creatively used as auxiliary supports of a lecithin liposome skeleton, the stability of an immunoglobulin liposome nanoparticle structure is improved, the slow release property in the simulation effect process is improved, and a pH response type hydrogel film formed based on electrostatic crosslinking is prepared from calcium alginate and chitosan. A more stable double-layer shell-core structure is formed, so that the stability of embedded immune globulin molecules in gastric juice is further improved, and fixed-point slow release in small intestines is realized.

The invention discloses a fresh-cut eggplant anti-browning and fresh-keeping method based on composite plant extract synergistic heat treatment, and the method comprises the following steps: S1, preparing a composite plant extract comprising the following components: a green tea extract, a rosemary extract, a licorice extract, trehalose, chitosan oligosaccharide, curcumin microcapsules, soybean lecithin, Tween, and the balance of pure water; s2, the fresh-cut eggplants are soaked in a composite plant extracting solution, gradient heat treatment is carried out, and the gradient heat treatment comprises the following three stages of a heat activation permeation stage, a cooling stabilization stage and a cold shock fixation stage; and S3, slightly draining the treated fresh-cut eggplants, and packaging with a preservative film. Through the synergistic effect of various plant extracts and an elaborately-designed gradient heat treatment process, effective inhibition of browning of the fresh-cut eggplants is achieved, the fresh-keeping period is remarkably prolonged, good quality can be kept for 10 days or above under the condition of 4 + / -1 DEG C, and the fresh-cut eggplant fresh-keeping method has a good application prospect.

The invention provides tranexamic acid-glutathione-containing compound emulsifiable paste and a preparation method thereof.W1 / O / W double emulsion phase structural design is adopted, reduced glutathione is encapsulated in an acidic inner water core, an oil phase is stabilized through hydrogenated lecithin and sorbitan sesquioleate, an outer water phase contains tranexamic acid, a layered gel network is constructed, and the tranexamic acid-glutathione-containing compound emulsifiable paste is prepared. A submicron dispersion system with the particle size D50 of 0.30-0.80 microns, the polydispersity index of 0.15-0.25 and the viscosity of 2.0-8.0 Pa seconds is realized, the encapsulation efficiency of glutathione is not lower than 70%, the oxygen content of a head space is not higher than 1.0%, and the encapsulation efficiency of glutathione is not lower than 70%. The three technical contradictions of coupling conflict between a high-yield viscoelastic structure and low-shear damage kernel integrity, coexistence of fresh and cool low-viscosity skin feeling and high-barrier anti-oxidation and anti-leakage and opposite low-surface-activity sensitive skin compatibility and submicron low-PDI dispersion stability are solved; the traditional Chinese medicine composition has wide application values of improving skin color unevenness, fading color spots, brightening skin color, soothing and repairing.

The invention provides a hyaluronic acid liposome with double anti-wrinkle and skin feeling improving functions, a preparation method thereof, essence, a mask, a toning lotion and application, and relates to the field of cosmetics. The hyaluronic acid liposome with the dual anti-wrinkle and skin feeling improving functions is prepared from the following raw materials in percentage by mass: 1 percent to 5 percent of hydrogenated lecithin, 0.5 percent to 1.5 percent of PEG-60 hydrogenated castor oil, 0.5 percent to 2 percent of Pellicer L-30, 2 percent to 10 percent of PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerol, 2 percent to 50 percent of glycerol, 1 percent to 2 percent of hexanediol, 5 percent to 15 percent of polydimethylsiloxane, 0.05 percent to 0.5 percent of micromolecular hydrolyzed sodium hyaluronate, 0.05 percent to 0.1 percent of macromolecular sodium hyaluronate and the balance of water, wherein the total mass of the raw materials is 100 percent. Meanwhile, micromolecular hyaluronic acid and macromolecular hyaluronic acid are wrapped, so that the synergistic effect of the large and small molecular hyaluronic acid is realized.

The invention discloses an essence microcapsule and a preparation method and application thereof, the essence microcapsule comprises the following raw materials by weight: 15-45 parts of essence, 3-15 parts of isocyanate, 3-15 parts of a hydrophobic organic phase change material, 10-35 parts of a stabilizer, 3-15 parts of a curing agent, 15-45 parts of organosilicon, 3-15 parts of a dispersant, and water; the hydrophobic organic phase change material comprises n-tetradecanol and liquid paraffin in a weight ratio of 1: (1-5); the stabilizer comprises polyvinyl chloride and lecithin. The heat stability of the essence microcapsule can be improved by using the hydrophobic organic phase-change material and the stabilizer of specific types.

The invention belongs to the technical field of sanitary napkins, and relates to a plant fiber breathable bacteriostatic sanitary napkin and a preparation method thereof.The plant fiber breathable bacteriostatic sanitary napkin comprises a liquid permeable surface layer, a flow guide bacteriostatic layer, an absorption core, a breathable bottom layer and a release film which are sequentially stacked and bonded; the diversion antibacterial layer is obtained by blending and hot-pressing modified plant fibers and modified polypropylene fibers; the modified plant fibers are obtained by soaking plant fibers in a bacteriostatic solution, and the bacteriostatic solution comprises tea polyphenol and salicylic acid which are co-included by beta-cyclodextrin, a chamomile extract coated by lecithin and chitosan quaternary ammonium salt; the modified polypropylene fibers are obtained by sequentially modifying polypropylene fibers by a silane coupling agent and grafting and modifying the polypropylene fibers by chitosan. The technical problems that a traditional sanitary towel product is not lasting in antibacterial effect, liquid permeation is slow, and bacteria are prone to breeding in a humid and hot environment are effectively solved, and the use safety and comfort of the sanitary towel are improved.

The invention relates to a preparation method and application of antibacterial and starch aging resistant biphase gel, and belongs to the field of food processing. The preparation method is characterized by comprising the following steps: preparing oleogel from monoglyceride, corn oil and curcumin, preparing hydrogel from wheat bran araboxylan and tea polyphenol, mixing the oleogel and the hydrogel, adding lecithin, and homogenizing at a high speed to obtain the gel with a two-phase system. The biphase gel produced by the invention has the characteristics of zero trans-fat, high fiber content, simple preparation method and the like, realizes synergistic stability of oil and water phases, has both the mechanical strength of oil gel and the biocompatibility of hydrogel, can replace shortening in baked food, and has a wide application prospect. And the shelf life of the baked product is prolonged through the synergistic effect of antibiosis and starch aging resistance. The mass ratio of the oil phase to the water phase in the biphase gel is 1: 3-3: 1, the addition amount is 10-20% of the mass of the flour, the bacteriostasis rates on penicillium and rhizopus are 60-85% and 65-90% respectively, the starch crystallinity in the bread storage process is reduced by 10-20%, and the shelf life of the bread is prolonged by 10-20 days.

The invention relates to the technical field of water-soluble fertilizer production, in particular to a slow-release polyglutamic acid water-soluble fertilizer and a preparation method thereof. The slow-release type polyglutamic acid water-soluble fertilizer is prepared from the following raw materials in parts by mass: 2 to 10 parts of polyglutamic acid master batch, 18 to 28 parts of nitrogen fertilizer, 12 to 22 parts of phosphorus fertilizer, 15 to 20 parts of potassium fertilizer, 4 to 16 parts of medium trace elements, 9 to 15 parts of polyglutamic acid fermentation liquor and 35 to 60 parts of slow-release coating agent, the slow-release coating agent comprises the following raw materials in parts by mass: 6-13 parts of lecithin, 2-4 parts of sodium thiosulfate, 8-18 parts of vegetable oil and 19-40 parts of a zinc oxide-loaded cellulose / chitosan-based composite material; according to the slow-release type polyglutamic acid water-soluble fertilizer and the preparation method thereof, the polyglutamic acid water-soluble fertilizer is subjected to coating treatment, so that nutrients in the fertilizer can be slowly and continuously released, the effective supply time of the nutrients is prolonged, and the utilization rate of the fertilizer is increased.

The invention discloses an astaxanthin supercritical CO2 extraction process and special equipment, and relates to the field of astaxanthin preparation, the astaxanthin supercritical CO2 extraction process comprises a multistage wall-breaking granulation pretreatment stage and a dynamic countercurrent supercritical extraction stage, and liquid nitrogen low-temperature embrittlement is performed on a haematococcus pluvialis mud raw material; carrying out ultrahigh-pressure homogenization wall breaking on the algae mud subjected to low-temperature embrittlement to obtain wall-broken algae powder; carrying out vacuum belt type drying on the wall-broken algae powder, and removing moisture to a critical value; and preparing high-porosity particles from the dried wall-broken algae powder, porous starch, lecithin and nano calcium carbonate. In the multi-stage wall breaking pretreatment stage, cell walls of haematococcus pluvialis are efficiently destroyed under the combined action of liquid nitrogen low-temperature embrittlement and ultrahigh-pressure homogeneous wall breaking, so that astaxanthin wrapped in cells is fully exposed; according to the prepared high-porosity particles, the specific surface area and the pore structure of the particles are greatly increased, the contact efficiency of supercritical CO2 and astaxanthin is enhanced, the problems that in a traditional technology, the astaxanthin is high in wrapping rate and difficult to dissolve out are solved, and the extraction rate is remarkably increased.

The invention belongs to the technical field of hydrogel preparation, and relates to a cartilage-imitating multifunctional drug release hydrogel material and a preparation method thereof. According to the invention, biocompatible high polymer materials such as polyvinyl alcohol, chitosan, grape seed protein, acyl chloride, sulphobetaine methacrylate and lecithin are used as raw materials, a cartilage structure is simulated to prepare the multilayer hydrogel, gelatin and plant polyphenol are mixed as an adhesive to improve the binding capacity with subosseous bones, and a drug is loaded to improve the biological activity. The preparation method of the hydrogel material comprises the five steps of preparation of high-strength anti-swelling precursor hydrogel, introduction of double bonds through surface modification, introduction of a poly SBMA molecular brush through interfacial polymerization, drug loading and preparation of an adhesion layer. The hydrogel has excellent anti-swelling ability, lubricating property, anti-pollution ability, free radical scavenging ability, self-adhesion characteristic, drug controlled release ability and biocompatibility, and has important significance for widening the application of the hydrogel in the field of artificial cartilage.