1213 results about "Phenolic content in tea" patented technology

The invention provides a personalized functional nutritional tea point rich in tea polyphenol and resveratrol and a 3D printing manufacturing method. The personalized functional nutritional tea point comprises a shell and an inner core, wherein the shell and the inner core are respectively a shell gel material and an inner core gel material; the inner core gel material comprises a water-oil double-gel material rich in tea polyphenol and resveratrol; wherein the water-oil double-gel material is prepared by the following steps: adding chitosan, betaine and vanillin into a mixed solution of corn starch, chickpea protein and water, heating and incubating to obtain hydrogel; and dissolving the tea polyphenol in the hydrogel to obtain the tea polyphenol hydrogel. The oleogel is obtained by melting and mixing beeswax and linseed oil, and then dissolving resveratrol in the oleogel; the personalized functional nutritional tea point is high in content of active ingredients of tea polyphenol and resveratrol and has heat stability, illumination stability and storage stability; the 3D coaxial printing technology is utilized, the functional components are further stabilized, tea points of various patterns and shapes can be obtained, and the method has personalized food preparation and application value.

The invention relates to the technical field of water treatment, and discloses a modified polyaluminum chloride flocculant and a preparation method thereof.The modified polyaluminum chloride flocculant is prepared from, by weight, 50-65 parts of polyaluminum chloride, 8-12 parts of magnesium silicate, 5-8 parts of carboxymethyl chitosan, 15-25 parts of polyaluminum ferric chloride and 3-5 parts of tea polyphenol; the molar ratio of aluminum ions to iron ions in the modified polyaluminum chloride flocculant is (3-4.5): 1. According to the invention, an inorganic-organic dual-modifier synergistic effect mechanism is adopted to construct a'rigid framework-flexible network 'composite structure, and the structure can significantly improve the adsorption capacity of Pb < 2 + >. Meanwhile, the mechanical property of the flocculating agent is improved, so that the flocculating agent can be applied to a high-turbulence environment.

The invention discloses a metal-doped carbon quantum dot as well as preparation and application of the metal-doped carbon quantum dot in a nano antibacterial agent, citric acid, urea and tea polyphenol are taken as precursors, metal salt is added, carbon dot synthesis and metal ion doping are synchronously completed in one step through a hydrothermal method, and the metal-doped carbon quantum dot is prepared; the surfaces of the metal-doped carbon quantum dots are negatively charged, and the metal-doped carbon quantum dots have peroxidase-like activity and catalase-like activity at the same time; the metal ions adopt any one of Fe < 3 + >, Cu < 2 + > and Ce < 3 + >; the metal-doped carbon quantum dots are in a sphere-like shape. The metal-doped carbon quantum dots prepared by the preparation method disclosed by the invention have peroxidase-like activity and catalase-like activity at the same time through precise doping of metal ions, and the two activities have a synergistic effect in an oral periodontitis microenvironment, so that a good antibacterial effect is achieved.

The invention relates to the field of skin care and medical cosmetology, and discloses a long-acting moisturizing and barrier repairing type exosome active gel and a preparation method thereof, and the gel comprises the following components by mass: 2-5 parts of exosome; 3 to 7 parts of trehalose; 2 to 6 parts of glycerol; 1 to 2 parts of polyvinyl acrylate; 0.5 to 1.5 parts of octyl glucoside; 0.8 to 1.5 parts of sodium hyaluronate; 0.2 to 0.5 part of low molecular peptide; 1 to 3 parts of polyacrylamide; and 0.02 to 0.05 part of a tea polyphenol antioxidant. According to the invention, through synergistic repair of the exosome and the low-molecular peptide, dual moisturizing of the trehalose and the glycerol, a thickening system is innovated to improve the stability, and the tea polyphenol antioxidant is combined, so that deep repair, lasting moisturizing, skin feeling optimization and aging resistance are effectively realized, and multiple bottleneck problems of a traditional skin care technology are comprehensively solved.

The invention relates to the technical field of microbial genetic engineering, in particular to a method for improving cordycepin synthesized by saccharomyces cerevisiae and saccharomyces cerevisiae engineering bacteria. According to the invention, codon-optimized 2 '-carbonyl-3'-deoxyadenosine reductase gene and 3 '-adenosine monophosphate phosphohydrolase gene from cordyceps militaris are expressed by using plasmids, and then the plasmids are transformed into host cells to obtain the saccharomyces cerevisiae engineering bacteria. And inoculating a seed solution obtained by seed culture of the activated saccharomyces cerevisiae engineering bacteria into a fermentation culture medium containing a metabolic effector, and carrying out fermentation culture to synthesize cordycepin. Metabolic effectors (Cu < 2 + >, Fe < 2 + >, Mg < 2 + >, Zn < 2 + >, citric acid, cysteine, aspartic acid, glycine, VB1 and tea polyphenol) are added into a fermentation culture medium strain, and the variety and concentration of the metabolic effectors are optimized, so that the yield and synthesis efficiency of cordycepin are remarkably improved. By using the combination of the strain obtained by the invention and the optimal effector, the yield of cordycepin in a fermentation tank reaches 2.9 g / L.

The invention relates to the technical field of fibers, and discloses a preparation method of antibacterial modified fibers for textile fabrics, nylon 6 and copper-tea polyphenol-based hyperbranched polyamide are added into formic acid, the mixture is stirred and then spun by an electrostatic spinning machine, and the antibacterial modified fibers for the textile fabrics are obtained. The hyperbranched polyamide has good compatibility with nylon 6, contains a three-dimensional dendritic hyperbranched molecular chain, has a good toughening effect on nylon 6 fibers, and enables the fibers to maintain good breaking strength while improving the elongation at break of the fibers. The copper-tea polyphenol-based hyperbranched polyamide contains tea polyphenol active antibacterial substances and antibacterial copper ions, so that the antibacterial performance of the fiber is remarkably improved. Meanwhile, the copper ions, the tea polyphenol and the catechol-based hyperbranched polyamide form a tight and firm coordination effect, and the copper ions and the tea polyphenol are also difficult to elute from a fiber matrix, so that the fiber still keeps excellent antibacterial performance.

The invention discloses a production process of a modified p-phenylenediamine rubber anti-aging agent, which comprises the following steps: S1, catalyzing a ring-closure reaction through lipase, and accurately controlling pH by combining a phosphate buffer solution, so that the bonding efficiency of 6PPD and tea polyphenol is remarkably improved, and the release amount of aniline is effectively reduced; s2, carrying out spray drying to obtain EP-TP powder to control the particle morphology; s3, increasing the load rate of the anti-aging agent and effectively inhibiting the migration rate of the anti-aging agent through the pore diameter physical confinement of mesoporous silica and an amination gas phase modification technology, and ensuring uniform dispersion of anti-aging agent particles through the synergistic effect of staged load reaction and a polyethylene glycol dispersant; and S4, the particle morphology is cooperatively controlled through vacuum microwave drying, the dispersion requirement of the rubber mixing technology is met, and the interface bonding strength is improved by combining the staged loading reaction with a polyethylene glycol dispersing agent.

The invention discloses a starch-based full-biodegradable mulching film capable of being rapidly degraded and a preparation method of the starch-based full-biodegradable mulching film, and belongs to the technical field of degradable materials.The preparation method comprises the steps of tea polyphenol calcium salt preparation, filler preparation, thermal plasticization and film preparation. The preparation of the filler comprises the following steps: adding silicon dioxide into a polyacrylic acid aqueous solution, stirring and centrifuging at room temperature, taking a precipitate, adding the precipitate into a polyvinylpyrrolidone aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, adding the precipitate into the polyacrylic acid aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, and freeze-drying to obtain the filler. The starch-based full-biodegradable mulching film prepared by the preparation method disclosed by the invention is good in processability, waterproofness and heat resistance and high in mechanical strength, the problem of phase separation does not occur in preparation, the problem of plasticizer precipitation does not easily occur in long-term use, and rapid degradation can be realized.

The present invention belongs to the technical field of fiber materials, and relates to a composite fiber containing nano natural tea fibers, and a preparation method and application thereof. The raw materials for preparing the composite fiber include nano natural tea fibers and basic fiber pulp, and the nano natural tea fibers are mate nano fiber microemulsions. The present invention integrates nanotechnology into the preparation of natural tea fibers, and adopts a microemulsion method to simultaneously and evenly disperse a variety of effective ingredients in tea in the mate nano fiber microemulsion, so that the multifunctionality of the fabric can be effectively exerted; the microemulsion system has high uniformity and long-term stability, and during the spinning process, the nano tea fibers can be highly dispersed in the spinning solution without the need for additional surfactants, and the effect of the functional fabric finally obtained can be long-lasting. In addition, mate tea is rich in tea polyphenols and unique yerba mate alkaloids, which can further improve the comprehensive performance of the composite fiber.

The application discloses an Aspergillus niger strain and a culture method and application thereof, the Aspergillus niger strain is preserved in China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20241727. The fermented tea product obtained by fermenting tea leaves or tea leaf extracts by using the Aspergillus niger strain CCTCC NO: M 20241727 has prominent sweet and floral fragrance, and the astringency is obviously reduced; the contents of tea polyphenols, free amino acids and flavones are higher than those of a fermented tea product of an existing Aspergillus niger strain; the antioxidant activity is enhanced; the tea soup color is orange red and bright; and the color, fragrance and taste qualities are all superior to those of the fermented tea product of the existing Aspergillus niger strain.

The invention discloses a functional probiotic composition and application thereof, and relates to the technical field of microbial engineering. Bifidobacterium longum, lactobacillus acidophilus and enterococcus faecalis are combined to serve as a microbial agent, the microbial agent and active substances of the tea leaves form a composition, then the composition is combined with prebiotics, it is ensured that viable bacteria directly reach the intestinal tract through a microencapsulation technology, and the effect of improving the immune function is achieved; tea polyphenol in the active substances of the tea leaves can serve as a carbon source of prebiotics to stimulate proliferation of the bifidobacterium longum and the lactobacillus acidophilus, so that the acid resistance and intestinal colonization capacity of the microbial inoculum are enhanced, and meanwhile, theanine in the active substances of the tea leaves, the bifidobacterium longum and the lactobacillus acidophilus synergistically promote secretion of gamma-aminobutyric acid, so that the effect of improving the intestinal colonization is achieved. And the tea polyphenol can inhibit the large intestine rod from adhering to the intestinal mucosa, and the probiotic agent secretes antibacterial peptide, so that the integrity of the intestinal barrier is maintained together.

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 provides a method for efficiently extracting tea polyphenol and tea polysaccharide and application, and belongs to the technical field of plant extraction.The extraction method comprises the following steps that tea leaves are pre-cooled and rolled and cut to obtain pretreated tea leaves, then the pretreated tea leaves are added into water to be mixed, biological enzyme is added for ultrasonic enzymolysis, filtering is conducted, and filtrate and tea residues are obtained; adding tea residues into water, mixing, adding an auxiliary agent, and carrying out low-temperature plasma treatment and filtration to obtain a filtrate; combining the filtrates, concentrating, precipitating, centrifuging, and collecting precipitate and supernate; washing and drying the precipitate to obtain a tea polysaccharide extract; and concentrating, extracting, adsorbing, eluting, re-concentrating and drying the supernate to obtain the tea polyphenol extract. The extraction method disclosed by the invention can be used for efficiently extracting the tea polyphenol and the tea polysaccharide in the tea leaves, the product yield and purity are high, and the tea polyphenol and the tea polysaccharide can be used for preparing health-care products for relieving diabetes and polyuria.

The invention belongs to the field of food processing, and particularly relates to an ostrich meat preservative and a preservation method. The ostrich meat preservative provided by the invention is prepared by matching and mixing the chitosan, the nisin and the tea polyphenol according to a specific proportion, so that the refrigeration refreshing time of the ostrich meat treated by the preservative can be effectively prolonged, the ostrich meat can maintain a relatively high L * value and a * value within 16 days of storage, the deterioration of meat color is delayed, the water-retaining property is remarkably improved, and the quality of the ostrich meat is improved. The content of thiobarbituric acid reactants and volatile basic nitrogen is obviously reduced, and fat oxidation and protein degradation are inhibited; the total number of bacterial colonies and the number of microorganisms such as coliform bacteria, pseudomonas, mould and saccharomycetes are obviously reduced. The growth and reproduction of putrefying bacteria can be effectively inhibited, and the cold fresh shelf life is prolonged.

The invention provides a fresh-keeping composite solution sprayed before picking fruits in cold-chain logistics transportation and a preparation method of the fresh-keeping composite solution, and relates to the field of fruit fresh keeping. The fresh-keeping composite solution is prepared from the following raw materials in parts by weight: 2.8 to 3.5 parts of schizochytrium limacinum powder, 2.3 to 2.8 parts of salvia officinalis extract, 1.8 to 2.2 parts of brown algae extract, 1.2 to 1.8 parts of banana peel polysaccharide, 0.8 to 1.2 parts of sodium carboxymethyl cellulose, 0.8 to 1.2 parts of tea polyphenol, 0.8 to 1.2 parts of beta-cyclodextrin, 0.8 to 1.2 parts of sodium alginate, 0.8 to 1.2 parts of calcium chloride, 0.4 to 0.6 part of olive oil, 0.1 to 1 part of malic acid and 80 to 90 parts of water. The composite fresh-keeping solution is developed for cold-chain logistics transportation of fruits and is applied before fruit picking, the synergistic effect of multiple natural components is utilized, sterilization and oxidation resistance can be achieved, the growth of microorganisms can be effectively inhibited, the respiration rate of the fruits is reduced, the moisture of the fruits is kept, and the optimal fresh-keeping effect is achieved. The fruit preservative is sprayed before the fruits are picked, so that decay and quality reduction of the fruits in the cold-chain logistics transportation process can be effectively reduced.

The invention relates to the field of oral cavities, and particularly discloses a lasting antibacterial type composite tooth socket for medicine carrying and a preparation method thereof.The lasting antibacterial type composite tooth socket comprises an adsorption layer and an antibacterial membrane layer, the adsorption layer is used for adsorbing oral cavity treatment liquid medicine, and the antibacterial membrane layer comprises a nano-silver antibacterial layer and a chitosan antibacterial layer; the preparation method comprises the following steps: mixing a tea polyphenol-polylactic acid composite solution, a nano-silver-carboxylation modified cellulose compound and a polyvinyl alcohol solution, and carrying out electrostatic spinning to prepare a nano-silver antibacterial fiber membrane, so as to form the nano-silver antibacterial layer; mixing chitosan with hot water, adding cinnamyl aldehyde, glycerol and boric acid, stirring to obtain a mixed solution, coating one side of the nano-silver antibacterial layer with the mixed solution, and curing to form a chitosan antibacterial layer; the adsorption layer is attached to the side, away from the chitosan antibacterial layer, of the nano-silver antibacterial layer, and then the lasting antibacterial type composite tooth socket for carrying the medicine is prepared through hot-pressing compounding. The drug-loaded composite tooth socket has the characteristic of further improving the antibacterial property and the antibacterial durability of the drug-loaded composite tooth socket.

The invention discloses a preparation technology of directional debitterizing yellow tea, and belongs to the technical field of tea processing. Fresh tea leaves are used as raw materials, the yellow tea is prepared through the processes of pretreatment, fermentation, fixation, rolling, heaping for yellowing and drying, during fermentation, a compound bacteria solution and the spread and aired fresh leaves are mixed and fermented, strains in the compound bacteria solution comprise lactic acid bacteria, saccharomycetes and bacillus, and through the synergistic effect of the lactic acid bacteria, the saccharomycetes and the bacillus, the yellow tea is prepared. Balancing of directional degradation of bitter and astringent substances and generation of flavor substances is achieved, high-quality yellow tea is prepared through efficient debitterizing, the stage heaping yellowing technology is adopted, primary heaping and secondary heaping are adopted for two-stage heaping yellowing, the quality of the yellow tea is enhanced, and poor taste caused by excessive heaping yellowing is avoided. According to the finished tea prepared by the preparation process, the content of tea polyphenol is reduced to 18%-20% through detection, the content of amino acid reaches 4.5%-5.0%, bitter taste and astringent taste are relieved, sweet taste is added, and the taste is mellow.

The invention discloses a high-oxidation-resistance long-life polyethylene cable sheath material and a preparation method thereof, and relates to the technical field of high polymer materials. Comprising the following components: high-molecular-weight high-density polyethylene, surface-modified nano-dioxide, furan-maleimide grafted polyethylene, a Schiff base dynamic cross-linking agent, tea polyphenol grafted polyethylene, a temperature-responsive oxygen-blocking microcapsule, a main antioxidant, an auxiliary antioxidant, an emergency antioxidant, a light stabilizer, a halogen-free flame retardant, a processing aid and an acid absorbent. According to the invention, the main antioxidant, the auxiliary antioxidant and the tea polyphenol grafted polyethylene form a chemically synthesized and naturally modified composite antioxidant system, the designed service life of the material is greatly prolonged, the temperature-responsive oxygen-blocking microcapsule automatically cracks to release the core material when the operating temperature of the cable is greater than or equal to 90 DEG C, a dynamic oxygen-blocking layer is formed, and the service life of the cable is prolonged. The defect that the effect of traditional physical oxygen barrier is attenuated at high temperature is overcome, and the oxygen permeability at high temperature is reduced compared with that of a single nano barrier scheme.

The invention belongs to the field of food fermentation, and particularly discloses a fermentation process of pickled vegetables in old jars, which comprises the following steps: selecting fresh vegetables, carrying out irradiation sterilization pretreatment, carrying out primary micro-aerobic fermentation by using a compound bacteria solution containing specific microorganisms, and carrying out secondary anaerobic fermentation by using a steeping liquor with a specific ratio. In the process, the vegetables are diversified, the compound bacteria liquid is rich in various beneficial microorganisms such as halophilic archaea, lactic acid bacteria and yeast, the steeping liquor 1 and the steeping liquor 2 respectively optimize the fermentation environment and are rich in nutritional ingredients and flavor substances such as lactic acid bacteria exopolysaccharides, tea polyphenols and selenium-enriched yeast powder, and the taste and fragrance of the pickled vegetables are improved. Besides, according to the process, by accurately controlling the fermentation temperature, humidity and time, the fermentation period is remarkably shortened, meanwhile, the use of chemical additives is avoided, and the safety and health of the pickled vegetables are guaranteed; the prepared pickled vegetables in old jars are delicious in taste, rich in fragrance, short in fermentation time and free of chemical additives, and the requirements of consumers for high-quality and healthy foods are met.

The invention provides a fat-reducing composition based on an agaricus bisporus extract as well as a preparation method and application of the fat-reducing composition, and belongs to the technical field of nutrition and health care. The fat-reducing composition comprises the following raw materials in parts by weight: 10-30 parts of an agaricus bisporus extract, 5-15 parts of a green tea extract, 5-15 parts of bitter gourd peptide, 3-10 parts of seaweed meal and 10-30 parts of resistant dextrin. The agaricus bisporus extract disclosed by the invention can regulate intestinal flora and promote fat metabolism; tea polyphenol in the green tea extract can inhibit fat synthesis and promote fat oxidation; momordica charantia peptide has an obvious hypoglycemic effect; the seaweed meal (containing fucoxanthin) has the effects of burning fat cells and eliminating fat accumulation; the resistant dextrin is used as dietary fiber, so that satiety is increased, and caloric intake is reduced. The raw materials cooperate with each other, so that the composition has better fat-reducing and weight-reducing effects, and the total cholesterol and triglyceride levels are reduced.

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 application discloses a preparation method of a hydrophilic oil-water separation anti-pollution membrane and the anti-pollution membrane and application thereof, and prepares MNRs material; the MNRs material is dispersed in dimethylacetamide, is uniformly stirred, polyvinylpyrrolidone is added, and stirring is continued, and a first mixture is obtained through ultrasonic treatment; the first mixture is mixed with polyvinylidene fluoride to obtain a second mixture, and the second mixture is stirred; the treated second mixture is dip-coated on a carrier, the dip-coated carrier is treated in deionized water to obtain an ultrafiltration membrane; the ultrafiltration membrane is soaked in a tea polyphenol solution with a Tris-HCl buffer solution, and is shaken to obtain the hydrophilic oil-water separation anti-pollution membrane. The hydrophilic oil-water separation anti-pollution membrane has excellent separation efficiency and flux recovery rate for four different oil-water mixtures of kerosene, gasoline, edible oil and n-hexane. The preparation process of the oil-water separation membrane is simple, the cost is low, and the reaction condition is mild; when the oil-water separation membrane is applied to organic wastewater separation, the oil-water separation membrane has the advantages of high efficiency, good removal performance and good recycling performance.

The invention discloses Janus microspheres co-loaded with melanin and tea polyphenol-magnesium as well as a preparation method and application of the Janus microspheres. The preparation method comprises the following steps: complexing tea polyphenol and magnesium ions under an alkaline condition to form nano-particles, and dissolving keratin in hair by using strong base to obtain melanin nano-particles; the two solutions are respectively mixed with methacryloyl collagen to prepare a solution as a mobile phase, vegetable oil is used as a dispersion phase solution, in a microfluidic device, a two-channel flow phase is coaxial and co-flow, the dispersion phase fluid disperses the mobile phase into monodisperse liquid drops by using a flow shear force, and the monodisperse liquid drops are subjected to ultrasonic dispersion. And curing the liquid drops under the irradiation of ultraviolet laser to form the Janus microspheres co-loaded with melanin / tea polyphenol-magnesium. By means of the microfluidic technology, high-uniformity preparation of the Janus microspheres co-loaded with melanin / tea polyphenol-magnesium is achieved, synergistic anti-oxidation and antibacterial treatment can be achieved, and the Janus microspheres can be applied to various biomedical applications with anti-oxidation and antibacterial requirements, such as promotion of healing of diabetic wounds, bacterial infectious wounds and the like.

The invention relates to a composite dissoluble microneedle gel patch mask and a preparation method thereof. Comprising the following steps: (1) preparing a lipid oil phase solution and a water phase solution; mixing the lipid oil phase solution with the water phase solution to obtain a liposome suspension; (2) preparing recombinant collagen hydrogel; (3) adding the tea polyphenol and the lipidosome suspension into the recombinant collagen hydrogel to obtain composite gel; and (4) injecting the composite gel into a mold, carrying out vacuum drying, and demolding to obtain the composite dissoluble microneedle gel patch mask. According to the composite dissoluble microneedle gel patch mask provided by the invention, the tea polyphenol, the plant exosome and the liposome carrier are integrated into the microneedle gel patch mask for the first time, the oxidation resistance is improved by utilizing the tea polyphenol, the inflammation resistance is improved by utilizing the plant exosome, the transdermal effect is enhanced by utilizing the liposome, the transdermal efficiency reaches 35.2-42.5 mu g / cm < 2 > / h, the medical beauty effect is obvious, and the application prospect is wide. The obvious advantages are realized in the aspects of safety, transdermal efficiency and repairing effect.

The invention provides a production method of a konjak-series Qingqing diet, and belongs to the technical field of konjak-series Qingqing diet, and the production method comprises the following steps: forming a primary colloid through an accurately controlled hydration process, then introducing soybean and pea proteins, and carrying out thermal gelation treatment to construct a composite gel matrix; functional plant extracts such as curcumin, tea polyphenol and a grape seed extract are added, and the release efficiency of active ingredients is improved by adopting an ultrasonic-assisted extraction technology. The method further comprises the step of adding vitamin complex and calcium and magnesium trace elements, finally, high homogenization of the product is achieved through an innovative tree-shaped multi-cavity homogenization treatment mechanism, the mechanism adopts a minimum spanning tree algorithm to optimize a fluid transmission path, and the technical problem of efficient compounding of the konjak gel and the functional plant extract is successfully solved.

The invention relates to the technical field of wastewater treatment, and discloses a method for synergistically strengthening denitrification of an anaerobic ammonia oxidation system based on tea polyphenol and ferric iron, and the method comprises the following steps: in an anaerobic ammonia oxidation reactor, inoculating anaerobic ammonia oxidation sludge, adding wastewater, adding tea polyphenol-Fe < 3 + >, and treating the wastewater. According to the invention, the tea polyphenol can promote the anaerobic ammonium oxidation bacteria to absorb ferric iron and enhance the biological utilization of iron element in the anaerobic ammonium oxidation system. Iron elements absorbed by the anaerobic ammonium oxidation bacteria can be used for synthesizing key functional enzymes, the metabolic activity of anaerobic ammonium oxidation and dissimilatory nitrate reduction into ammonium of the anaerobic ammonium oxidation bacteria is enhanced, meanwhile, coupling of two nitrogen conversion ways is promoted, the total nitrogen removal rate is synergistically increased, and the denitrification efficiency of an anaerobic ammonium oxidation system is enhanced.

The invention relates to the technical field of cosmetics, and discloses an oil-controlling acne-removing tea polyphenol composition, a preparation method and application thereof, the composition comprises 20-30 parts of tea polyphenol, 30-40 parts of capryloyl glycine and 50-60 parts of a solubilizing antioxidant; according to the composition, the normal-temperature water solubility of the capryloyl glycine is improved through the solubilizing antioxidant, the application range of the capryloyl glycine in water aqua is expanded, in addition, the solubilizing antioxidant can improve the oxidation resistance of the tea polyphenol and improve the stability of the tea polyphenol, the oil control and acne removal effects are remarkably improved when the composition is applied to water aqua cosmetics, and the product stability is high.

The invention discloses a preparation method and application of an environment-friendly easily-degradable hydrogel coating, and relates to the technical field of hydrogel coatings. The coating is a coating comprising chitosan, acrylic acid, sericin, silk fibroin, silk peptide, tea polyphenol, a photoinitiator, a plasticizer and a leveling agent. The preparation method comprises the following steps: (1) preparing the coating containing the components; (2) coating the surface of food packaging paper with the coating liquid in a slit coating manner; and (3) performing ultraviolet light initiation to obtain the coating. The hydrogel coating has a synergistic effect with the sericin, the silk fibroin, the silk peptide and the tea polyphenol to form a compact and uniform network structure, so that the water-retaining property, the mechanical strength, the flexibility and the antibacterial property are enhanced; the preservative not only has the advantages of environmental protection and degradability, but also has the functions of moisturizing, antibiosis and preservation, and can significantly prolong the shelf life of food and improve the quality. The environment-friendly packaging paper is applied to food packaging paper, not only conforms to the green packaging trend, but also expands the use scenes of environment-friendly materials in the fields of fresh food, baking and the like.

The invention belongs to the field of tea polyphenol preparation, and particularly discloses tea polyphenol continuous extraction equipment which comprises a rack, a tea leaf crushing device, a tea polyphenol extraction device, a tea polyphenol purification device and a control system, an extraction tank is arranged on the rack, an upper cavity of the extraction tank is a crushing cavity, and a lower cavity of the extraction tank is a stirring cavity; the tea leaf crushing device is arranged in the crushing cavity, and the tea polyphenol extraction device is arranged in the stirring cavity; a valve opening and closing device is further arranged between the crushing cavity and the stirring cavity; the tea polyphenol purification device comprises a support, a purification tank, a filter assembly arranged in the purification tank and a pressurizing mechanism used for pressurizing a coarse dissolved solution in the purification tank, and a solution conveying device is arranged between the liquid inlet of the purification tank and the liquid outlet in the stirring cavity of the extraction tank. According to the continuous extraction equipment for the tea polyphenol, the tea polyphenol in the tea leaves can be continuously extracted, so that the extraction efficiency of the tea polyphenol is improved, and the extraction cost of the tea polyphenol is reduced.

The invention discloses a processing method of low-temperature brewing high-aroma high-amino-acid white tea, and belongs to the technical field of white tea processing. The preparation method comprises the following steps: primarily preparing white tea by adopting a compound withering method, withering the white tea for 12 hours in an indoor environment with the room temperature of 25 DEG C and the air humidity of 50-60%, then carrying out heating treatment by adopting a method of sunshine withering for 3-4 hours, then withering for 10 hours in a room again, reducing the moisture to 9%, stacking and boxing, carrying out primary baking after 7 days, and finally baking again after 1 month. According to the invention, the leaching rate of the white tea is improved through a compound withering method in primary processing of the white tea, control of parameters such as temperature control and humidity control and a baking technology in refining, and relatively good conditions such as melting and the like can be achieved under a low-temperature condition. The prepared Yunnan white tea is beautiful in appearance, has bud leaves connected with branches, is strong in pekoe, is rich in tea soup taste, is fresh and refreshing in taste, and has sweet and strong fragrance. Under the condition of low-temperature brewing, the content of tea polyphenol is relatively low, the fresh degree is kept high, and the taste is sweet and mellow, so that the quality of the Yunnan white tea is greatly improved.