76 results about "Propyl gallate" patented technology

The invention discloses a method for detecting antioxidants and polyphenols in food by constructing a colorimetric sensing array based on monatomic iron nano-enzyme, and belongs to the field of nanotechnology and colorimetric sensing. The traditional monatomic nano enzyme shows limited enzyme-like activity and substrate specificity, and is difficult to meet the comprehensive requirements of detecting various antioxidants and polyphenols in food. In the research, a novel nano-enzyme system (sdsFeN (at) G) of monatomic iron nano-enzyme is developed. The SdsFeN (at) G shows excellent enzymatic activity, and a three-channel colorimetric sensing array is constructed by utilizing inhibition of different antioxidants and polyphenols on oxidation of three chromogenic substrates, so that simple, convenient and reliable identification and detection of five substances (tert-butylhydroquinone, butylated hydroxyanisole, propyl gallate, catechol and hydroquinone) in food are realized.

The invention relates to the technical field of green building materials, in particular to phase-change energy-storage thermal insulation mortar and a preparation method of the phase-change energy-storage thermal insulation mortar. 25 to 40 parts of methyl palmitate; 120 to 180 parts of hydrophobic perlite; 8 to 15 parts of expanded graphite; 3-6 parts of phosphorus sheet-shaped aluminum nitride; 180 to 250 parts of sulphoaluminate cement; 60 to 100 parts of volcanic rock micro powder; 0.3 to 0.8 part of hydroxypropyl methyl cellulose; 0.6 to 1.2 parts of a polycarboxylic acid water reducing agent; 2 to 4 parts of nano aluminum oxide; 0.8 to 1.5 parts of propyl gallate; and 1-2 parts of zinc borate. Through the proportion design of the antioxidant flame-retardant microcapsules and the lightweight composite aggregate, the problems of poor thermal conductivity and insufficient durability of a traditional phase change material are solved. Through phase change material loading, interface modification and multi-component cooperative regulation, the thermal insulation performance, energy storage efficiency and structural stability are remarkably improved, and the material is suitable for the fields of building energy saving, intelligent temperature control and the like.

The invention discloses a preparation method of an environment-friendly water-based rubber protective film, and belongs to the technical field of rubber chemical modification. Comprising the following steps: mixing butadiene styrene rubber and nitrile rubber according to a mass ratio of 3: 1 to prepare an emulsion with the solid content of 40-50%, adding nano silicon dioxide and a silane coupling agent, and reacting at 50-60 DEG C for 2-3 hours to obtain a silane modified rubber emulsion; the preparation method comprises the following steps: preparing sodium alginate into a 2-3% aqueous solution, adding tributyl citrate and nano-zinc oxide, and carrying out ultrasonic dispersion for 30 minutes to obtain a composite cross-linking agent solution; dissolving chitosan in an acetic acid solution, adding propyl gallate and nano montmorillonite, and uniformly stirring and mixing to obtain a functional additive solution; adding the composite cross-linking agent solution and the functional additive solution into the modified rubber emulsion; by optimizing a formula system and a preparation process, the problems that an existing water-based protective film is poor in stability, low in drying speed, insufficient in water resistance and difficult to consider both flexibility and adhesive force are solved.

The invention relates to the technical field of wet tissues, in particular to an all-cotton wet tissue which comprises a base material and a wet tissue immersion liquid, wherein the wet tissue immersion liquid contains 0.1-0.4 wt% of a thickening agent, 0.1-2 wt% of a surfactant, 0.14-0.28 wt% of a pH regulator, 0.01-0.35 wt% of an environment-friendly non-irritant bactericide, 0.1-1.5 wt% of propylene glycol, 0.01-0.2 wt% of essence and the balance of deionized water; the preparation process of the environment-friendly non-irritating bactericide comprises the following steps: dissolving propyl gallate in ethanol, adding into a tea polyphenol-PEG acrylate modified quaternary ammonium salt modified carboxymethyl chitosan solution, adding a chitosan sulfate catalyst, adjusting the pH value to 5-7, and stirring and reacting in a constant-temperature water bath at 60-80 DEG C for 4-8 hours to obtain the environment-friendly non-irritating bactericide. According to the all-cotton wet tissue, the environment-friendly non-irritating bactericide is added into the wet tissue immersion liquid, so that the all-cotton wet tissue has very good environment-friendly non-irritating bactericidal performance.

The invention discloses a preparation method and application of a collagen packaging film, and belongs to the technical field of bio-based food packaging materials.The method comprises the steps that animal-derived collagen is dissolved in an acetic acid solution with the pH ranging from 3.5 to 4.5 to form a solution with the concentration ranging from 3% to 5%; sequentially adding genipin accounting for 15-25% of the dry weight of the collagen and cellulose nanowhiskers accounting for 8-12% of the dry weight of the collagen, and carrying out a cross-linking reaction at 35-40 DEG C to construct a three-dimensional network structure; then soaking treatment is performed by adopting a 70-80% ethanol solution containing 0.5-1.5% of propyl gallate, and the surface hydrophobicity is improved through specific binding of phenolic hydroxyl groups and collagen hydrophobic regions; and finally, carrying out vacuum drying and 60-70% humidity environment balance treatment to obtain the degradable membrane material with high mechanical strength and moderate waterproofness. The preparation method is particularly suitable for fresh-keeping packaging of chilled meat products, and the shelf life of food can be effectively prolonged while the biodegradability of materials is kept.

The invention provides a composition containing exosome, which is prepared from the following components in parts by weight: 10 to 20 parts of exosome, 5 to 15 parts of extract, 0.3 to 0.5 part of antioxidant and 0.05 to 0.1 part of preservative, the extract is a mixture of 3-8 parts of aloe extract, 1-5 parts of camellia flower extract and 1-3 parts of cranberry extract; the preservative is one or more of benzoic acid, salicylic acid, boric acid and sorbic acid; the antioxidant is propyl gallate. When the composition is applied to an anti-aging product, the temperature sensing effect and the DPPH free radical scavenging rate are obviously improved.

The invention discloses a preparation method of curcumin, and belongs to the technical field of natural product extraction. The method comprises the following steps: firstly, adopting a modified deep-eutectic solvent into which propyl gallate is introduced as an extraction medium, and realizing high-selectivity extraction of curcumin through a special molecular structure of the modified deep-eutectic solvent; then the ultrasonic-microwave coupling technology is combined, so that the extraction efficiency is remarkably improved; finally, the modified molecularly imprinted polymer with magnetism is used for precise purification, the material has the specific recognition capacity and the rapid magnetic separation characteristic, polyethylene glycol is introduced to serve as a pore-foaming agent, and more active sites are provided for adsorption of curcumin molecules. According to the method disclosed by the invention, through collaborative innovation of all links, the whole process optimization from extraction to purification is realized, the product purity and the extraction efficiency are remarkably improved, the energy consumption and the solvent pollution are greatly reduced, and a reliable solution is provided for industrial production of the high-quality curcumin.

The invention belongs to the technical field of oil sludge separating agents, and particularly provides an oil sludge separating agent and an oil sludge separating method.The preparation method comprises the following steps that propylene glycol block polyether, a coagulant and an oil trapping agent are mixed and stirred, and the oil sludge separating agent is obtained; the preparation method of the oil trapping agent comprises the following steps: S01, taking polycaprolactone, adding acetone, and carrying out heating dispersion to obtain a solution A; s02, hydroxypropyl-beta-cyclodextrin and propyl gallate are taken, heated, added with water and stirred, then pH is adjusted, ethylenediamine disuccinic acid is added, stirring continues, and a solution B is obtained; and S03, dropwise adding the solution A into the solution B, maintaining stirring until the solution is completely mixed, then performing rotary evaporation, and collecting solid components, thereby obtaining the product. The total deoiling rate of the oil sludge treated by the oil sludge separating agent and the separation method is greater than or equal to 92.5%.

The invention relates to the technical field of food processing, in particular to a gallic acid derivative as well as a preparation method and application thereof. The preparation method of the propyl gallate comprises the following steps: mixing gallic acid, alcohol and a catalyst, heating to a reaction temperature under a condensation reflux condition, carrying out an esterification reaction, and then carrying out post-treatment to obtain a gallic acid derivative; the alcohol is n-propyl alcohol, and the catalyst is sulfonic acid resin. The gallic acid derivative obtained by the preparation method provided by the invention not only improves the stability of gallic acid, but also enhances the antioxidant activity of gallic acid, and the prepared gallic acid derivative has higher application value in the fields of food, medicine, cosmetic production and the like.

The invention provides a biological slow-release fertilizer for slope corn planting and a preparation method thereof, and relates to the technical field of corn planting. The fertilizer is prepared from a straw fermentation material, humic acid, kieselguhr, a modified starch material, charcoal, expanded vermiculite, sodium alginate, magnesium sulfate, monopotassium phosphate, urea, ethylenediamine disuccinate trisodium salt and propyl gallate. The straw fermentation material is prepared by crushing straw, performing alkali treatment, inoculating aspergillus oryzae for fermentation, sterilizing, continuing to inoculate bacillus subtilis for fermentation and drying; the modified starch material is obtained by mixing a semi-gelatinized starch material and a completely gelatinized starch material. The method overcomes the defects in the prior art, prematurity of slope field corn planting is effectively promoted through adjustment and improvement of the fertilizer, water and soil loss during planting is prevented, and the effect of high-yield corn planting is achieved.

The invention discloses a water-soluble diclazuril solution and a preparation method thereof, and belongs to the technical field of veterinary drug preparations, the water-soluble diclazuril solution comprises 10-30 g / L of diclazuril, 100-500 g / L of an organic solvent, 30-60 g / L of an amine organic base, 5-10 g / L of a surfactant, the balance of water for injection, 3-5 g / L of propyl gallate, and 10-15 g / L of a composite fermentation broth, the organic solvent comprises the following components in percentage by mass: 20-40% of N, N-dimethylformamide, 40-70% of propylene glycol and 10-20% of ethanol, and the compound fermentation liquor is a fermentation product obtained by fermenting a mixture of felwort and tamarind fruits with a compound microbial inoculant. The water-soluble diclazuril solution provided by the invention not only can effectively prevent and treat chicken coccidiosis, but also is beneficial to improving the weight gain rate of broiler chickens in the recovery process after infection, the preparation method is simple, the cost is low, the use mode is convenient and efficient, and the use value of the water-soluble diclazuril solution in the aspect of broiler chicken breeding is effectively improved.

The application belongs to the field of coordination chemistry and analytical sensing technology, and particularly relates to a Zn(II)-Tb(III) complex ratio fluorescence sensor and a preparation method and application thereof. The sensor is a double-metal coordination polymer formed by coordination of Zn(II) ions, Tb(III) ions, nitrogen-containing organic ligands and carboxylic acid organic ligands. Under excitation conditions, the sensor simultaneously generates an emission signal of ligand coordination with Zn(II) and a characteristic emission signal of Tb(III) ions, forming intrinsic double emission. By monitoring the fluorescence intensity ratio (I395 / I549) of the two characteristic emission peaks at 395 nm and 549 nm, ratio fluorescence detection of propyl gallate can be realized, and the detection limit is as low as 0.35 μM. The sensor of the application has a simple synthesis method, a rapid detection process, and realizes internal calibration by using a ratio signal, has strong anti-interference ability, and is suitable for detection of propyl gallate in edible oil and other actual samples.

This rotigotine-containing adhesive patch comprises a support layer and an adhesive layer, wherein the adhesive layer contains: at least one selected from the group consisting of rotigotine and pharmaceutically acceptable salts of rotigotine; a rubber-based adhesive base; and an antioxidant. The antioxidant includes propyl gallate, ascorbyl palmitate, and sodium pyrosulfite.

The application relates to a high-antibacterial PETG composite material and a preparation method and application thereof, which comprises the following raw materials in parts by mass: 100 parts of PETG, 2-5 parts of a composite antibacterial agent, 3-10 parts of a silane coupling agent and 0.1-0.3 parts of an initiator; wherein the composite antibacterial agent is a combination of propyl gallate, hexamidine diisethionate and polyhexamethylene biguanide hydrochloride. The composite antibacterial agent can be stably combined with the PETG matrix through the action of the coupling agent and the initiator. The PETG composite material has both processing feasibility and long-acting antibacterial property through the synergistic action of the composite antibacterial agent, the coupling agent and the initiator.

The application discloses a kind of hydrogen-rich physiotherapy products and preparation method thereof, belong to medical health technical field.The application first uses propyl gallate as main modifier to modify magnesium hydride and magnesium powder, and obtains modified magnesium powder and modified magnesium hydride;After adding natural medicinal plants and hydrogen-rich components (modified magnesium powder and modified magnesium hydride etc.) in hot compress product, increase traditional Chinese medicine physiotherapy and hydrogen therapy function while hot compress physiotherapy, realize the multifunctionalization of hot compress product;Meanwhile, the unique surface coating material is used to physically wrap magnesium powder and magnesium hydride without affecting its physical and chemical properties, which can prevent the product from reacting with water and oxygen during storage, and also does not hinder the reaction of hot steam with magnesium powder and magnesium hydride, thereby accelerating the hydrogen release amount and release speed.

The present application relates to the technical field of conductive adhesives, and specifically discloses a silicone conductive adhesive composition, silicone conductive adhesive, and a preparation method and application thereof. The present application discloses a silicone conductive adhesive composition, comprising the following components in parts by weight: 18-25 parts of liquid silicone rubber; 70-79 parts of conductive particles; 0.5-1.5 parts of hydroxy silicone oil; 1-3 parts of coupling agent; 3-7 parts of auxiliary agent; wherein the auxiliary agent includes one or two of glyceryl monostearate and propyl gallate and calcium carbonate. The present application also discloses a silicone conductive adhesive prepared using the above-mentioned silicone conductive adhesive composition and a preparation method thereof, the silicone conductive adhesive having excellent conductive properties and mechanical properties, simple use method, and can be cured at room temperature.

In an embodiment, there is provided a varenicline formulation consisting essentially of about 0.85% varenicline tartrate and greater than 1.75% to about 3.0% propyl gallate, wherein the formulation maintains a level of N-nitrosovarenicline (NNV) impurity over the shelf-life of the formulation of not more than 18.5 ppm (37 ng / day) of acceptable daily intake (ADI). In another embodiment, there is provided a varenicline formulation comprising a tablet core comprising about 0.85% varenicline tartrate, about 60.50% microcrystalline cellulose, about 33.33% dibasic calcium phosphate anhydrous, about 2.00% croscarmellose sodium, about 2.57% propyl gallate, and about 0.75% magnesium stearate; and a film coating.

The invention belongs to the technical field of circuit board repair, and particularly relates to a PCB copper surface repair process. The process comprises the following steps: detecting the copper surface of the PCB, identifying and positioning defects, and generating a three-dimensional damage map; a cleaning solution containing tripotassium citrate, sodium lauroyl sarcosinate, propyl gallate, glycerin and Tr ici ne is used for conducting fixed-point cleaning on the defect area; spraying a functional nano activator dispersion liquid prepared from a layered zirconium oxide nanosheet, carboxymethyl chitosan, ammonium tripolyphosphate, a naringenin-dopamine-maleic acid copolymer and a polyvinyl alcohol aqueous solution to form a nano-structure activation layer; and finally, applying a conductive material for defect filling and repairing. According to the process, the copper surface micro-defects can be accurately repaired, the conductivity and the interface bonding force of the repaired area are enhanced, the repaired PCB has excellent long-term stability, the overall reliability of the PCB is effectively improved, and the service life of the PCB is effectively prolonged.

The application belongs to the technical field of circuit board repair, and particularly relates to a PCB copper surface repair process. The process comprises the following steps: detecting the copper surface of a PCB, identifying and positioning defects, and generating a three-dimensional damage atlas; using a cleaning solution containing tri-potassium citrate, sodium lauroyl sarcosinate, propyl gallate, glycerol and Trici ne to perform spot cleaning on the defect area; spraying a functional nano-activating agent dispersion liquid made of layered zirconium oxide nanosheets, carboxymethyl chitosan, ammonium tripolyphosphate, naringenin-dopamine-maleic acid copolymer and polyvinyl alcohol aqueous solution to form a nano-structure activation layer; and finally applying a conductive material to fill and repair the defects. The process can realize accurate repair of copper surface micro-defects, enhance the conductivity and interface bonding force of the repaired area, and the repaired PCB has excellent long-term stability, effectively improving the overall reliability and service life of the PCB.

The invention discloses a preparation method and application of a bio-based waterproof and oil-proof agent. According to the preparation method, a simple compounding method is adopted, the ODA-PPG-coated CNFs subjected to hydrophobic modification by propyl gallate and octadecylamine are compounded with natural high polymers (sodium alginate, sodium carboxymethyl cellulose and hydroxypropyl methyl cellulose) with oil-proof performance, and the biomass-based environment-friendly fluoride-free waterproof and oil-proof agent is obtained. Hydrophobic modified CNFs and a natural polymer oil-proof component are reasonably compounded, the problem that a single biomass component is short in performance is solved, the hydrophobicity of a system is improved through the modified CNFs, grease permeation is blocked through a natural polymer depending on the film forming property, and balance of waterproof and oil-proof performance is achieved through cooperation of the CNFs and the natural polymer oil-proof component; the contradiction that in the prior art, oil-proof performance is lowered if hydrophobic performance is improved, and water-proof performance is insufficient if oil-proof performance is strengthened is broken through.

The invention discloses a # imgabs 0 # responsive solvent and application thereof in efficient extraction and circulation of active ingredients of polygonatum sibiricum, the # imgabs 1 # responsive solvent is composed of the following components in percentage by mass: # imgabs 2 # responsive amphiphilic compound, alkyl primary amine or secondary amine with the carbon chain length of C12-C16, accounting for 8-25% of the total mass of the solvent, and a # imgabs 1 # responsive amphiphilic compound and a # imgabs 2 # responsive amphiphilic compound, accounting for 8-25% of the total mass of the solvent. The cosolvent is an ethanol water solution with the volume concentration of 60%-90% and accounts for 5%-12% of the total mass of the solvent; the initial pH (Potential of Hydrogen) of the solvent system is 7.5 to 8.5; the antioxidant is selected from one or a combination of L-ascorbic acid and propyl gallate and accounts for 0.2-0.8% of the total mass of the solvent; the pH value of the solvent is reduced to 6.0-7.2 after # imgabs 3 # is introduced, the polarity parameter logP value is reduced to be larger than or equal to 1.5, and the logP value reversibly recovers to 90% or above of the initial value after # imgabs 4 # is released. The invention further discloses a # imgabs5 response type solvent and application of the # imgabs5 response type solvent in efficient extraction and circulation of active ingredients of polygonatum sibiricum, and efficient extraction of the active ingredients of polygonatum sibiricum and reversible recycling of the solvent are achieved.

The invention provides a citric acid-containing composite flotation inhibitor and a preparation process thereof, and belongs to the technical field of mineral separation. The preparation process comprises the steps of preparing the citric acid modified lignosulfonate, preparing the propyl gallate and preparing the composite flotation inhibitor. Carboxyl of citric acid is grafted to lignosulfonate molecules through esterification reaction to obtain citric acid modified lignosulfonate, and after the citric acid modified lignosulfonate is prepared into the composite flotation inhibitor, the composite flotation inhibitor can have multiple functions that sulfonic acid groups adsorb quartz / potassium feldspar and aromatic rings act on muscovite in a pi-pi mode; therefore, muscovite, potassium feldspar, quartz and other minerals are inhibited at the same time, effective separation of lepidolite and minerals is achieved, and the flotation recovery rate and recovery purity of lepidolite are improved.

A rotigotine-containing patch which is provided with a support layer and an adhesive layer, and wherein the adhesive layer contains an adhesive base and propyl gallate, and at least one substance selected from the group consisting of rotigotine and a pharmaceutically acceptable salt of rotigotine.

This invention discloses a high oil-holding capacity and temperature-resistant oleogel and its preparation method, comprising dissolving a gelling agent in a base oil, dispersing it under magnetic heating, and obtaining the oleogel after cooling; wherein the gelling agent is composed of β-sitosterol and propyl gallate. This invention uses β-sitosterol and phenols as gelling agents to improve the types of dual gelling agents and enhance various properties of the oleogel; the entire preparation process is carried out under relatively mild temperature conditions, and by controlling the amount of β-sitosterol and phenols, the performance of the final oleogel can be effectively regulated to meet the needs of different application scenarios; this technical route does not involve hydrogenation, avoiding the generation of trans fatty acids; at the same time, it effectively reduces the calorific value of the oil and improves its oxidative stability and health benefits.

The present invention relates to a container comprising multiple servings of a heat-treated liquid dairy product, wherein the liquid dairy product has a solids level of at least 55 wt%, a pH of greater than 5.5, and comprises a first antioxidant which is TBHQ and a second antioxidant which is propyl gallate, wherein the first and second antioxidants are present in a combined total amount of from 100 to 400 μg / mL.

The invention provides a composite MOF membrane for gas separation and a preparation method thereof, and belongs to the technical field of gas separation. The method comprises the following steps: mixing zinc nitrate hexahydrate with a 2-methylimidazole methanol solution, sealing and heating, and carrying out solid-liquid separation and drying to obtain MOF particles; mixing propyl gallate, ferric trichloride hexahydrate and absolute ethyl alcohol, adding the chitosan / acetic acid solution, adjusting the pH value, heating and performing rotary evaporation to obtain modified chitosan syrup; the preparation method comprises the following steps: mixing polyethersulfone, polyvinylpyrrolidone, N-methyl pyrrolidone, fly ash and aluminum oxide to prepare slurry, coating a film, removing a solvent, drying, heating, and carrying out hydroxylation treatment to obtain a ceramic substrate film; pEBAX particles, an ethanol solution, 3-glycidyl ether oxypropyl trimethoxy silane, an acetic acid solution, MOF particles and the modified chitosan syrup are mixed and spin-coated on a basement membrane, and the membrane is formed through standing and drying. The mechanical strength and the carbon dioxide and nitrogen separation performance of the composite MOF membrane can be improved.

The invention provides application of propyl gallate in preparation of anti-obesity drugs or functional food for weight management, and belongs to the field of biological medicine technology and food. The invention discloses that the propyl gallate has the health benefit of positively regulating basic metabolism for the first time, and the propyl gallate can obviously reduce the weight of obese mice induced by high fat diet, reduce body fat, effectively relieve obesity and improve metabolic conditions such as glucose tolerance and insulin resistance; and brown fat can be activated to produce heat, respiratory metabolism and energy consumption are enhanced, and a new way is opened up for preventing and / or treating obesity. Propyl gallate is an edible substance, is high in safety and oxidation resistance, and is widely used as a food antioxidant, so that propyl gallate can be used for preparing anti-obesity drugs or functional foods for weight management, and has a good application prospect.

The invention relates to a pharmaceutical dosage form for oral administration comprising (i) an intragranular phase, which comprises Sertraline or a physiologically acceptable salt thereof; one or more intragranular fillers (preferably selected from one or more sugar alcohols or sugars; preferably mannitol or lactose, more preferably mannitol); one or more intragranular antioxidants (preferably selected from butylated hydroxytoluene (BHT), butylated hydroxy anisole (BHA), tocopherol or derivatives thereof, ascorbic acid or derivatives thereof, sodium metabisulphite, propyl gallate, sodium thiosulphate, or any combination thereof, more preferably ascorbic acid); (ii) an extragranular phase, which comprises one or more extragranular fillers (preferably mannitol, microcrystalline cellulose, lactose, or any combination thereof); and (iii) optionally, a film coating. The invention further relates to a process for manufacture by wet granulation, wherein the antioxidant is preferably dissolved in the granulation liquid.

The application belongs to the technical field of oil sludge separating agents, and specifically provides an oil sludge separating agent and an oil sludge separating method, and the preparation steps include the following: taking propylene glycol block polyether, a coagulant and an oil capturing agent, stirring, and obtaining; the preparation steps of the oil capturing agent include the following: S01. Taking polycaprolactone, adding acetone to heat and disperse to obtain A liquid; S02. Taking hydroxypropyl-beta-cyclodextrin and propyl gallate, heating, adding water and stirring, then adjusting pH, adding ethylenediamine disuccinic acid, and continuing to stir to obtain B liquid; S03. Dropping A liquid into B liquid, maintaining stirring until mixing is complete, and then rotary evaporation to collect solid components to obtain. After the oil sludge is treated by the oil sludge separating agent and the separating method, the total oil removal rate of the oil sludge is greater than or equal to 92.5%.

The invention discloses a papaya, radix puerariae and fructus lycii soft capsule. The soft capsule comprises a content and a soft capsule shell, the content comprises the following raw materials in parts by weight: 2-3 parts of a papaya extract, 6-8 parts of a radix puerariae extract, 8-10 parts of a fructus lycii extract, 3-4 parts of soybean lecithin, 4-6 parts of an antioxidant A, 2-4 parts of beewax and 65-75 parts of soybean oil; the soft capsule shell comprises the following raw materials in parts by weight: 32-34 parts of gelatin, 16-17 parts of sorbitol, 2-3 parts of magnesium stearate, 6-10 parts of an antioxidant B and 38-42 parts of water; wherein in the preparation process of the antioxidant A, superfine silica powder, propyl gallate and an ethanol water solution are mixed, stirred and subjected to solid-liquid separation, and the antioxidant A is obtained. The invention further discloses a preparation method of the papaya, radix puerariae and fructus lycii soft capsule. The problem of slow disintegration of the papaya, radix puerariae and fructus lycii soft capsule can be improved.