1673 results about "Food grade" patented technology

The invention discloses a food-grade high-temperature-resistant coating and a preparation method thereof. The high-temperature-resistant coating is prepared from 60-75% of matrix resin, 18-28% of surface hydrophobic modified nano functional filler and 10-20% of auxiliaries, and the nano functional filler is prepared from 10-15% of nano silicon dioxide, 5-8% of nano aluminum oxide and 3-5% of nano titanium dioxide. According to the food-grade high-temperature-resistant coating and the preparation method thereof, surface hydrophobic modification is carried out on nano particles through a silane coupling agent, the compatibility and dispersion stability of the nano particles in a resin matrix are remarkably improved, coating defects caused by agglomeration at high temperature are avoided, a hydrophobic barrier is formed by the modified nano filler, the moisture permeability is reduced, and the high-temperature-resistant performance of the food-grade high-temperature-resistant coating is improved. And the damp-heat aging resistance of the coating is enhanced.

The utility model discloses an intelligent straw which is characterized in that an induction electrode is coated and attached in the pipe wall of a hollow pipe along the length direction of the hollow pipe to collect the data of the amount of liquid passing through the hollow pipe, the hollow pipe can be made of food-grade materials such as silica gel and food-grade plastics, and the intelligent straw has the function of digitizing drinking water. The system can transmit data to a mobile phone or a cloud end, carries out health analysis through the data, achieves recording reminding, affects healthy diet of young people from behaviors, serves as an intelligent terminal of the Internet of Things, builds a digital connection between a merchant and a user, and further optimizes customer services better.

The invention discloses a synthesis method of magnesium L-threonate. The synthesis method comprises the following steps: S1, preparing food-grade calcium L-threonate into an aqueous solution; s2, oxalic acid is added into the aqueous solution according to the molar ratio of 1: 1, and ultrasonic treatment is conducted for 30 min or above; s3, performing water bath treatment on the reaction mixed solution in a water bath at 0-4 DEG C, and then filtering to remove precipitates to obtain an L-threonic acid solution; s4, adding excessive magnesium oxide micro powder into the L-threonic acid solution, reacting, naturally cooling to room temperature, and filtering to remove precipitate to obtain an L-magnesium threonate solution; and S5, adding absolute ethyl alcohol into the magnesium L-threonate solution, then filtering to obtain a precipitate, washing the precipitate with absolute ethyl alcohol, and carrying out vacuum drying until the weight is constant, thereby obtaining the magnesium L-threonate. The invention further discloses the synthesis method and application in the pharmaceutical field. The synthesis efficiency is relatively high, the overall yield is also high, and it can be ensured that the purity of the synthesized magnesium L-threonate is high.

The invention discloses a method for constructing food-grade Janus liquid drops with adjustable particle sizes based on multiphase spatial recombination, and belongs to the technical field of liquid drop preparation. According to the preparation method, space phase behaviors of a zein solution and a sodium alginate solution are controlled, the zein solution and the sodium alginate solution which are incompatible with each other are taken as a dispersion phase, and an emulsifier is dissolved in an oil phase to serve as a continuous phase. The laminar behavior of the zein solution and the sodium alginate solution is controlled, and the food-grade Janus liquid drops are prepared under the shearing action of a continuous phase. A series of food-grade Janus liquid drops with controllable particle sizes are constructed by controlling the molecular weight of sodium alginate, the concentration of a dispersed phase, the concentration of an emulsifier, three-phase interface equilibrium and three-phase flow velocity. According to the method for constructing the food-grade Janus liquid drops, the Janus liquid drops which are uniform in particle size and stable in structure can be constructed, and meanwhile, the material for constructing the Janus liquid drops has good biocompatibility and safety.

The invention discloses an edible and medicinal composition for dispelling effects of alcohol and protecting liver as well as a preparation method and application thereof, and belongs to the technical field of functional foods. The composition consists of the following raw materials in parts by weight: 1-8 parts of ampelopsis grossedentata extract freeze-dried powder, 1-8 parts of astragalus membranaceus extract freeze-dried powder, 1-5 parts of kudzu vine root extract freeze-dried powder, 1-8 parts of hawthorn extract freeze-dried powder and 1-5 parts of cassia seed extract freeze-dried powder. The composition is designed according to a multi-component synergistic interaction principle, and the functions of protecting the liver and dispelling the effects of alcohol are enhanced through targeted interaction of active ingredients such as ampelopsis grossedentata flavone, puerarin and astragaloside; the compound preparation has the compound effects of protecting the liver, dispelling the effects of alcohol, resolving dampness, resisting oxidative stress, regulating lipid metabolism and the like, can remarkably relieve the problems of acute and chronic liver injury and metabolic disorder caused by alcohol intake, and meets the food-grade safety standard and the medicinal activity requirement; the important application prospect is realized in the aspect of preparing a preparation for relieving alcoholic liver injury and improving the liver detoxification function.

The invention discloses a stainless steel material for a food-grade straw and a preparation process of the stainless steel material, and relates to the technical field of stainless steel material plating. The silver coating and the antibacterial coating are arranged on the surface of the stainless steel material, and the stainless steel material has good wear resistance and antibacterial performance through the action of the double protective layers. Sulfonated polyphenylene sulfide is added into a silver plating solution, a plating layer is formed after electroplating, the surface of a stainless steel material is not prone to being scratched, the wear resistance of stainless steel is improved, quaternary ammonium salt modified tea polyphenol-nano-silver composite particles are added into the antibacterial coating, and through the synergistic antibacterial effect of quaternary ammonium salt, tea polyphenol and nano-silver, the wear resistance of the stainless steel material is improved. The broad-spectrum antibacterial property is realized, and the efficient antibacterial effect is achieved.

The invention relates to the technical field of flour waterproof packaging bags, in particular to a wear-resistant waterproof packaging bag for flour processing and production. An outer layer material of the packaging bag comprises the following raw materials in parts by mass: 75-85 parts of polyamide, 15-25 parts of a thermoplastic elastomer, 2-5 parts of nano calcium carbonate, 0.2-0.25 part of an antioxidant, 1-3 parts of a nucleating agent and 5-10 parts of a citrate plasticizer; the middle layer material of the packaging bag comprises the following raw materials in parts by mass: 55-65 parts of a polyamide monomer, 35-45 parts of a polyether monomer and 0.5-1.5 parts of a catalyst; the inner layer of the packaging bag is made of 100 parts of food-grade low-density polyethylene. According to the flour packaging bag, by optimizing the material formula and the preparation technology, balance of flexibility and rigidity is achieved, abrasion resistance and water resistance are remarkably enhanced, aging resistance stability is improved, accurate technology guarantee performance is achieved, efficient bonding and antistatic design are achieved, flour quality and transportation safety are guaranteed, and potential risks are reduced.

The invention relates to the technical field of food industry, in particular to a lutein-loaded Pickering emulsion for 3D printing and a preparation method of the lutein-loaded Pickering emulsion. The preparation method comprises the following steps: extracting chlamydomonas reinhardtii protein from chlamydomonas reinhardtii powder as a raw material, preparing a chlamydomonas reinhardtii protein-xanthan gum compound from the chlamydomonas reinhardtii protein and xanthan gum with different contents, mixing the chlamydomonas reinhardtii protein-xanthan gum compound with lutein-loaded edible oil, and uniformly shearing to obtain stable lutein-loaded Pickering emulsion. And the xanthan gum is utilized to improve the stabilizing effect of the chlamydomonas reinhardtii protein on the Pickering emulsion and the protecting effect of the chlamydomonas reinhardtii protein on the xanthophyll. No chemical surfactant is added in the preparation process, so that the food safety is high; according to the present invention, the preparation operation is simple, the stability is good, the storage stability of xanthophyll can be significantly improved, and the xanthophyll nano-emulsion has characteristics of excellent viscoelasticity and excellent thixotropic recovery, can be used for 3D printing food, and has wide application prospects in the application of novel nutrient substance delivery systems and food-grade 3D printing materials.

The invention belongs to the technical field of saccharomyces cerevisiae beta-glucan, and relates to a preparation method of saccharomyces cerevisiae-sourced yeast beta-glucan. The invention relates to a preparation method of saccharomyces cerevisiae-sourced yeast beta-glucan, which comprises the following steps: uniformly mixing a yeast raw material with a first solvent, and carrying out high-pressure homogenization to obtain a homogenized feed liquid; adding food-grade alkali into the homogenized feed liquid to carry out extraction reaction, centrifuging the obtained reaction extracting solution, and separating a heavy phase to obtain a heavy-phase insoluble cell wall extract; and continuously adding a second solvent for resuspension, adding a compound enzyme preparation, adjusting the pH value of the reaction system by using an acidic reagent, carrying out an enzymatic hydrolysis reaction, centrifuging after the reaction is finished, recovering a heavy phase, and drying to obtain the insoluble yeast beta-glucan dry powder. According to the preparation method of the yeast glucan, provided by the invention, the conventional preparation process flow is shortened, the environmental protection treatment pressure is greatly relieved, the production cost is effectively reduced, and the prepared yeast glucan is higher in purity and has a better industrial application prospect.

The present invention provides a betahistine antioxidant tablet and a preparation method thereof, the betahistine antioxidant tablet comprises: a first zone comprising anhydrous citric acid, microcrystalline cellulose and hydroxypropyl methylcellulose; the middle buffer area is a sodium alginate aqueous solution coating; a second zone including calcium carbonate, betahistine, and microcrystalline cellulose; the first zone is located at the top of the tablet, the second zone is located at the bottom, and the buffer zone physically isolates the first zone from the second zone. The first zone, the buffer zone and the second zone are designed to form a sandwich structure, oxidation resistance is realized through dual mechanisms of physical isolation and chemical neutralization, and CO2 generated by reaction of food-grade citric acid and calcium carbonate is used for physically replacing oxygen.

The invention discloses a combined purification monitoring method and a combined purification monitoring system for food-grade carbon dioxide, and relates to the technical field of purification monitoring, and the combined purification monitoring method comprises the following steps: carrying out purification analysis on a purification process, carrying out sequential decomposition on purification steps, and establishing step association of the purification steps; configuring an integrated monitoring platform, and configuring a monitoring sensor on each purification step; step monitoring of the purification process is executed, and a real-time feedback data stream is established and returned to the integrated monitoring platform; carrying out independent verification analysis on the returned data based on an independent verification network, and establishing a purification early warning result; performing combined purification fitting analysis on the step purification early warning result and the step association, and establishing a pre-analysis result; and completing joint purification monitoring according to a pre-analysis result and a step purification early warning result. The technical problems of insufficient real-time monitoring and weak early warning capability in the prior art are solved, and the technical effects of dynamic monitoring and abnormal early warning of the food-grade carbon dioxide purification process are realized.

The invention relates to the technical field of pharmaceutical preparations, in particular to a preparation process of carbon dots for killing helicobacter pylori and application of the carbon dots in oral pharmaceutical preparations. The preparation method comprises the following steps: mixing microcrystalline cellulose and glycerol, freezing and crushing at an ultralow temperature, and selectively hydrolyzing by combining citric acid-malic acid mixed acid liquor to efficiently prepare a high-crystallinity cellulose nanocrystal template; the controllable synthesis of the carbon dots is realized by utilizing the hydrogen-bond interaction of hydroxyl / carboxyl on the surface of the cellulose nanocrystal and the nitrogen doping effect in the polymerization and carbonization process of citric acid and urea. Besides, when a sodium alginate-chitosan double-layer structure is constructed, carbon dots are introduced into the inner layer to endow the inner layer with special performance, a protein-polysaccharide network is formed on the outer layer through transglutaminase enzymatic crosslinking, and the oxidation resistance and mechanical strength are enhanced through secondary curing of tea polyphenol. According to the invention, food-grade raw materials are used for realizing high-efficiency antibiosis, the oral preparation safety specification is met, and the clinical transformation potential is realized.

The invention relates to the technical field of production of dipotassium phosphate, discloses a process method for continuously producing food-grade anhydrous dipotassium phosphate, aims to obtain a food-grade anhydrous dipotassium phosphate product through a drying reaction in a rotary polymerization furnace by a one-step method, and effectively solves the problems of multiple control procedures, complicated process control and high production cost. The coke content is greatly reduced under the condition of ensuring the dipotassium phosphate content.

The invention relates to the technical field of biotechnology, and discloses a special biological fresh-keeping preservative method for cattle stomach, which comprises the following steps: firstly, pretreating the cattle stomach; the method comprises the following steps: putting the cattle stomach into flowing clear water, washing off obvious impurities, dirt and mucous membrane liquid on the surface, soaking the cattle stomach in saline water or a food-grade cleaning agent solution in a certain proportion for 10-30 minutes, kneading the surface of the cattle stomach, washing the kneaded cattle stomach with clear water again, and removing impurities and cleaning agent residues after soaking and kneading, and placing the cleaned cattle stomach in a filter screen or a clean container, and naturally draining water. And further determining the strain by adopting a 16SrDNA (Deoxyribose Nucleic Acid) detection technology, and analyzing experimental data to find out a bacteriostatic agent with the best effect and the lowest effective bacteriostatic concentration through a bacteriostatic activity experiment. And finally, determining quality index data of the cattle stomach through a single factor and an orthogonal test, and optimizing the bacteriostatic agent with the best effect, so that the shelf life of the cattle stomach stored at low temperature is prolonged.

The invention relates to the technical field of PET (polyethylene terephthalate) bottle preparation, and discloses an anti-light-transmission PET bottle preparation method based on a two-way stretching process, raw material pretreatment: compounding a food-grade PETG (polyethylene terephthalate glycol) resin base material, a titanium dioxide or carbon black opacifying agent and auxiliaries containing a dispersing agent and the like, premixing for 5-10 minutes in a high-speed mixer at the speed of 800-1200 rpm, and carrying out vacuum drying for 4 hours at the temperature of 120 DEG C to obtain a premix with the water content of less than or equal to 30 ppm; melting and injection molding: plasticizing the premix through a twin-screw extruder, and carrying out injection molding to obtain a tubular preform with the wall thickness of 2-3mm; and cooling and heating: cooling the preformed blank in a water bath at 25 DEG C, and heating the surface layer to 90-00 DEG C and the core to 60-70 DEG C by using an infrared heating furnace. Stretching and blow molding are conducted, axial stretching is conducted at 50-80 mm / s, radial high-pressure air blow molding is conducted at 2.5-3.5 MPa, the temperature of a mold is 80-100 DEG C, and pressure maintaining is conducted for 5-8 seconds. And post-treatment: cooling in three sections, cutting off excess materials, and carrying out UV treatment to improve weather resistance. By optimizing dispersion of the opacifying agent and selecting a proper opacifying agent, light is effectively blocked, and the light transmittance is controlled at an extremely low level.

The invention provides sustained-release granules containing gamma-aminobutyric acid as well as a preparation method and application of the sustained-release granules, and relates to the technical field of sustained release. The invention discloses a GABA sustained-release particle prepared by compounding glyceride and vegetable wax with gamma-aminobutyric acid for the first time, particularly provides a structure of the GABA sustained-release particle, and provides a preparation method of the GABA sustained-release particle by taking glyceride, vegetable wax and gamma-aminobutyric acid as a core material and taking glyceride and vegetable wax as a coating to wrap the core material. The GABA sustained-release granules are simple in components and production process, and large-scale industrial production can be realized. Use of hazardous chemicals and chemical reactions are not involved, and no pollution is caused to the environment; the product has small particle size, can meet the use requirements of various medicines, health care products, foods or cosmetics, and has guiding significance for development of GABA food-grade sustained-release products and other sustained-release products.

The present invention discloses a method for preparing food-grade glassine paper from edible mushroom liquid fermentation mycelium and the food-grade glassine paper, which relates to a method for preparing glassine paper using natural biological materials. The preparation method of the food-grade glassine paper is as follows: Step 1: Preparation of the base paper of edible mushroom liquid fermentation mycelium; Step 2: Preparation of the surface paper of edible mushroom liquid fermentation mycelium; Step 3: Preparation of the food-grade glassine paper. The present invention prepares the food-grade glassine paper from edible mushroom liquid fermentation mycelium, which can replace the traditional papermaking method mainly using wood as the raw material, without adding plastics and chemical coating agents, and has the advantages of environmental protection, low carbon and degradability. It is a food-grade oil-proof, moisture-proof and semi-transparent glassine paper, and has broad application prospects in various fields such as food, medicine and express labels.

According to the method, Y (NO3) 3.6 H2O or YCl3. 6H2O is taken as yttrium salt, C4H6O6 is taken as a'one-cage 'reaction chelating agent to be directly chelated with metal ions, metal Y < 3 + > is coated with a cage-shaped structure, syrup is taken as an auxiliary agent to be grafted outside the chelating agent to form a'two-cage', crystal nucleus growth is stabilized, and the nano yttrium oxide is prepared. The uniform nucleation of yttrium oxide is regulated and controlled by a double-cage structure, and the growth speed of crystals is controlled through a water bath reaction under a high-concentration acidic condition, so that a nano yttrium oxide material is successfully prepared; in the synthesis process, inorganic salt and food-grade additives which are low in cost and easy to obtain are used as raw materials, the cost is low, reagents are environment-friendly and safe, the green technology innovation advocated by the double-carbon strategy is met, the method is simple and easy to implement, the repeatability is good, large-scale production can be achieved, and the commercialization process of functional ceramic materials can be effectively promoted.

The invention discloses a cryoprotectant which comprises glycerol, skimmed milk powder, mannitol, trehalose, vitamin C, fructo-oligosaccharide, inulin and sterile water. By optimizing the components of the cryoprotectant, the activity of the coprophilous fungi can be effectively protected, the survival rate of the intestinal coprophilous fungi in the freezing process is remarkably increased, all the used components are food-grade edible components and have a wide application range and economic effects, the invention further discloses a coprophilous fungi freezing preservation method adopting the cryoprotectant, and the cryoprotectant has good application prospects. The method is simple, easy to operate and suitable for large-scale production and application.

The invention discloses a biodegradable flexible conductive high-hydrophobicity sensor substrate and a preparation method and application thereof.The preparation method comprises the steps that a polylactic acid electrostatic spinning solution and a chitosan / polyethylene oxide mixed electrostatic spinning solution are prepared on the basis of a safe and non-toxic food-grade material; the preparation method comprises the following steps: sequentially spinning by adopting an electrostatic spinning technology to form a sandwich structure flexible substrate, transferring a carbon nano tube conductive film, and tightly attaching the carbon nano tube conductive film to the surface of a polylactic acid layer of the sandwich structure substrate, thereby finally obtaining the flexible conductive high-hydrophobicity composite substrate. According to the invention, a hydrophobic-hydrophilic-hydrophobic sandwich structure is constructed through multi-layer electrostatic spinning, and a surface carbon nanotube conductive layer is cooperated, so that the substrate has high hydrophobicity, excellent conductivity and flexible tensile property. The preparation method has the characteristics of controllable process, low cost and environmental friendliness, and the obtained substrate is expected to have wide application prospects in the fields of food packaging, sensor substrates, intelligent wearing, health monitoring and the like.

Improvements in batter coating machines for automatic food process lines include improvements at least in connection with (1) a variable height adjustment system for the submerging conveyor, (2) a batter mixing tank for mixing fresh batter, (3) a viscosity management system, (4) a batter pool leveling system, a (5) a dual batter pump and three-way valve system for pumping fresh batter or for recirculation, (6) a ‘waste’ conveyor for removing ‘waste’ material (albeit still food grade) from the main batter pool, (7) an auxiliary accurate feed machine of dry ingredients and wet ingredients (presumably water, but other things like milk or egg whites and so on are not excluded), and the like.

The invention is applicable to the technical field of toothpaste preparation, and particularly relates to mild stain-removing and whitening toothpaste containing diatomite and coconut shell carbon and a preparation method of the mild stain-removing and whitening toothpaste. The mild stain-removing and whitening toothpaste comprises 9-30% of Changbai Mountain diatomite abrasive, 32-38% of sorbitol, 2-4% of sodium lauroyl silicate, 2-3% of polyethylene glycol 400 and 0.5-2% of coconut shell carbon. The toothpaste is prepared from the following components in percentage by weight: 0.6 to 1 percent of polyvinylpyrrolidone, 0.5 to 0.8 percent of honeysuckle flower extract, 0.5 to 0.7 percent of pseudo-ginseng extract, 0.5 to 0.8 percent of xanthan gum, 0.1 to 0.2 percent of 1, 2-hexanediol, 0.5 to 0.8 percent of essence and water. The diatomite and coconut shell carbon used in the invention are refined natural food-grade raw materials, do not contain chemical components, have low hardness, are suitable for children and sensitive people, and do not damage enamel; the selected Changbai Mountain diatomite and coconut shell carbon with the iodine value of 1500-3000 have a synergistic effect, and the Chinese herbal medicine extract is added to assist in degerming; the adsorption, whitening and deodorizing capabilities of the toothpaste are greatly improved, and the toothpaste can quickly remove stains, whiten and remove bad breath.

The invention provides application of beta-1, 3 / alpha-1, 3-glucan in preparation of functional food with a sleep improving effect, and belongs to the field of health-care food. The food-grade beta-1, 3 / alpha-1, 3-glucan aims to assist in solving the problems that in the prior art, a sleep improvement scheme is limited in effect, prone to dependence, obvious in discomfort after use and large in effect individual difference, is used for improving sleep-related symptoms, is high in safety and wide in applicability, and can cover people with different sleep troubles.

The invention belongs to the technical field of peptide, new materials and food processing, and discloses an enteric-coated slow-release gel particle for oral beauty treatment and oxidation resistance, and a preparation method and application of the enteric-coated slow-release gel particle. The collagen peptide gel particles comprise the following raw material components in parts by weight: 3-6 parts of collagen peptide, 1 part of vitamin C, 1-2 parts of sodium alginate, 0.5-1.5 parts of a thickening agent, 0.8-1.2 parts of an emulsifying agent, 2-4 parts of food-grade calcium salt and purified water. An oil-in-water method is adopted to prepare the enteric sustained-release gel particles, through a unique sustained-release system, various colloids are compounded, and the optimal proportion of the addition amount of each colloid is controlled, the prepared gel particles are high in water content, high in biodegradability and small in irritation, and can be matched with matched drinks, the whole taste is improved, and meanwhile, the taste of the gel particles is improved. And direct swallowing can be realized, the outer layer protection material is prevented from being damaged by chewing, the collagen peptide is effectively protected from being damaged by gastric juice, and the collagen peptide is ensured to safely reach the intestinal tract and be efficiently absorbed and utilized, so that the efficacy of the product is remarkably improved.

The utility model discloses a concentration tank for producing food grade calcium propionate, which comprises a concentration tank body, three supporting legs are fixedly arranged at the bottom end of the concentration tank body, a tank cover is fixedly arranged at the top end of the concentration tank body, a driving motor is fixedly arranged at the center of the top wall of the tank cover, the output end of the driving motor is in transmission connection with a rotating rod, and the rotating rod is in transmission connection with the bottom end of the concentration tank body. The concentration tank comprises a tank cover and a rotating rod, the rotating rod is rotatably mounted on the tank cover, a U-shaped scraping plate is fixedly mounted at the bottom end of the rotating rod and attached to the inner wall of the concentration tank body, a rotating plate is fixedly welded to the rotating rod, and an inner gear ring is arranged above the rotating plate. When raw materials are concentrated and processed, the driving motor can drive the rotating plate to rotate through the rotating rod, so that the plurality of stirring rods can rotate through meshed connection of the gear and the inner gear ring when rotating around the rotating rod, the plurality of stirring rods are driven to stir the raw materials, and the stirring uniformity of the raw materials is improved; the concentration effect of the raw materials is improved.

The invention discloses a natural clinoptilolite processing method for food and medicine industries. According to the method disclosed by the invention, heavy metals and radioactive impurities in zeolite pore channels can be accurately and directionally desorbed through a super-medium freezing and microwave-infrared coupling technology, and the purity of a final product is ensured to reach a food-grade standard. The supercritical CO2 gradient extraction further strengthens the capability of removing residual pollutants and effectively eliminates harmful substances such as organochlorine pesticides, so that the zeolite micro-powder meets the high cleanliness requirement of a medical carrier material, the natural microporous structure of zeolite is protected, deep decontamination is realized, a safe and reliable base material is provided for subsequent application, and the application range of the zeolite micro-powder is widened. Through low-temperature environment and supersonic airflow crushing, the agglomeration phenomenon of particles caused by mechanical friction is avoided, and meanwhile, the dispersion stability of the powder is enhanced through application of the surface modifier. The modular design of the integrated device is matched with an intelligent dynamic regulation and control system, and efficient connection and energy consumption optimization of the technological process are achieved.

The utility model discloses a beating type wild jujube pulp separator, which relates to the technical field of wild jujube processing and comprises a frame, a support cylinder is fixedly arranged on the frame, a rotating shaft is arranged at the center in the support cylinder, a beating rod is arranged in the middle of the rotating shaft, a food-grade steel wire mesh is arranged around the inner wall of the support cylinder, and a motor is fixedly arranged on the frame. The motor is connected with the rotating shaft through a transmission device; a first-layer filter screen is arranged below the beating rod, a second-layer filter screen is arranged below the first-layer filter screen, a screen is arranged below the second-layer filter screen, a feed port tray is arranged on one side of the supporting cylinder above the beating rod, a kernel outlet is formed in one side of the supporting cylinder below the second-layer filter screen and above the screen, and a pulp outlet is formed below the screen. According to the utility model, water is not needed in the whole process of separating the pulp from the kernel, so that the environment is not polluted while water resources are not consumed; and the completeness of the pulp is effectively reserved.

The invention particularly relates to hierarchical porous conductive gel, a preparation method thereof and a friction nano-generator. Aiming at the defects of mechanical property and electric conductivity of the existing conductive gel material, the invention provides the conductive gel with a multi-stage pore structure, food-grade raw materials are adopted, and the multi-stage pore structure is realized through a freeze-drying method and an interactive embedding mode of gel with different densities; the moist environment of an internal ion solution can be kept for a long time, and good stability and flexibility are achieved. The invention also provides a friction nano-generator using the gel material as a conductive medium, and the friction nano-generator has good electrical properties and good application prospects when applied to wearable electronic equipment.

The invention discloses a personalized food-grade stomach-occupying capsule use recommendation system and method, and relates to the technical field of stomach-occupying capsule recommendation systems.A target value of each recommendation scheme in a similar user scene is calculated through a target function, and part of recommendation schemes are deleted by combining the target values with a selection algorithm; and performing mutation operation on each reserved recommendation scheme to generate a corresponding mutation scheme, judging whether the mutation scheme is accepted or not based on a comparison result of a recommendation scheme target value and a mutation scheme target value, constructing a scheme set for all the reserved recommendation schemes according to the comparison result, and outputting all the scheme sets when a convergence condition is met. And integrating all the scheme sets into a total set, and selecting the recommendation scheme with the maximum target value in the total set to be sent to the user. A dynamic iteration mechanism is introduced into the recommendation system, the recommendation scheme is adjusted in real time through multi-round calculation, screening and optimization, the change requirements of the user in the use process are met, and the adaptability of the recommendation system is enhanced.

To provide a food quality preservative enabling further reduction of acetaldehyde concentration in a food packaging body.SOLUTION: A food quality preservative is used, the preservative comprising at least an ethanol vapor-releasing body, an oxygen absorber, and an aminooxyalkyl group-containing polysiloxane having a structural unit represented by the following general formula (1). [In the formula, R independently represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a hydroxyl group. The alkyl group may have an amino group (-NH2) at any position. Q independently represents a divalent organic group having 1 to 20 carbon atoms. n represents a real number of 0 to 100].SELECTED DRAWING: None