36 results about "Green Tea Polyphenols" patented technology

The invention belongs to the technical field of health-care food, and particularly relates to functional milk assisting in lowering blood pressure and a preparation method thereof.The functional milk comprises, by weight, 99.5% of raw milk and 0.5% of a potassium ion bridged citrus fiber-green tea polyphenol network, raw milk is sequentially subjected to trypsin and proline specific incision enzyme treatment, HPCD-ultrasonic treatment and pulsed magnetic field treatment. The invention provides a systematic solution, which exceeds a simple extraction and addition mode in the prior art, and solves the stability problem of the antihypertensive active component in the processing and storage process.

The invention relates to the technical field of cosmetics, and discloses a high-efficiency mild depilation cosmetic and a preparation method thereof, and the raw materials of the depilation cosmetic comprise, by weight, 8-10% of bromelain; 10%-12% of a turmeric root extract; 9%-11% of a calendula extract; 6%-9% of an aloe extract; 4%-7% of a soybean extract; 7%-10% of calcium thioglycolate; 2%-5% of L-cysteine; 1%-3% of sodium bicarbonate; 3%-6% of green tea polyphenol; 2%-4% of a chamomile extract; 1%-3% of dipotassium glycyrrhizinate; 0.9%-2.3% of a peptide component; 0.5%-1% of rosmarinic acid; 1%-3% of vitamin E; 2%-4% of gluconic acid; 4%-5% of beewax; 5%-10% of an emulsifier; according to the invention, dipotassium glycyrrhizinate and the chamomile extract form a dual anti-allergy barrier, the physical protection effect of aloe polysaccharide is combined to reduce skin irritation, and the turmeric root extract and the peptide component prolong the hair follicle resting period and reduce the hair regeneration rate, so that the safer and more effective hair removal cosmetic is prepared.

The invention discloses an antibacterial and deodorant fiber, a preparation method and antibacterial and deodorant socks, and relates to the technical field of fibers.The preparation method of the antibacterial and deodorant fiber comprises the following steps that S1, chitosan, tannic acid, glacial acetic acid, modified zinc oxide, ZIF-8 / tea tree essential oil and glutaraldehyde are fully dispersed in water, and a core layer solution is obtained; s2, fully dispersing polyvinyl alcohol, epsilon-polylysine and green tea polyphenol in water to obtain a shell solution; and S3, injecting the core layer solution and the shell layer solution into a coagulating bath by a coaxial wet spinning method to prepare the antibacterial and deodorant fiber. The antibacterial and deodorizing fiber prepared by the invention has excellent antibacterial and deodorizing performance.

This application belongs to the field of biomedicine, specifically relating to a method for preparing an antitumor composition for pets, aiming to solve the technical problems of low bioavailability, poor stability, and poor drug administration compliance of poorly soluble active ingredients in antitumor drugs for pets. The method includes: a raw material pretreatment step, in which curcumin, resveratrol, quercetin, green tea polyphenols, and astragalus polysaccharides are pulverized and sieved separately; an organic phase preparation step, in which egg yolk lecithin and solid lipids are dissolved in an ethanol-acetone mixed solvent, and curcumin and resveratrol are added and dissolved by stirring in a water bath; an aqueous phase preparation step, in which poloxamer F68 is dissolved in purified water and dissolved in a water bath; a high-pressure homogenization step, in which a nanoemulsion containing a solid lipid core is prepared; a moderately polar component encapsulation step, in which quercetin and green tea polyphenols are ultrasonically dispersed and then added dropwise to the nanoemulsion; a freeze-drying step, in which a nano-lyophilized powder is obtained; and an outer hydrophilic component coating step, in which astragalus polysaccharides are sprayed or adsorbed onto the surface of the freeze-dried powder. The composition obtained by this method is a core-shell multilayer nanoparticle with a core consisting of curcumin and resveratrol encapsulated by solid lipids, a middle shell adsorbing quercetin and green tea polyphenols, and an outer shell coated with astragalus polysaccharides. This application utilizes the above-mentioned layered encapsulation technology to achieve stable co-encapsulation of multiple antitumor active ingredients, improve the bioavailability of poorly soluble components, optimize drug stability, and enhance antitumor effects through multi-target synergistic effects. Simultaneously, it endows the composition with immunomodulatory functions and sustained-release properties. The composition can be formulated into a nano-lyophilized powder form, making it easy to add to pet food or formulate into a paste for administration, improving pet drug compliance. Figure 2 is a schematic diagram of the three-layer core-shell nanoparticle structure of the composition of this invention.

The utility model provides a resin column purification device for mirabilitum praeparatum toothpaste production. The resin column purification device comprises an extracting solution storage tank, a tubular centrifuge and a chromatographic separation device which are connected in sequence, and water eluent and alcohol eluent output by the chromatographic separation device are respectively introduced into a theanine purification section and a tea polyphenol purification section to obtain purified theanine and tea polyphenol; the theanine purification section comprises a first mixing tank, a cation exchange resin column and a first concentrator which are connected in sequence, output liquid of the acid liquor storage tank is connected into the first mixing tank, and output liquid of the alkali liquor storage tank is connected into the cation exchange resin column; the tea polyphenol purification section comprises a desorption solution storage tank and a second concentrator which are connected in sequence. The resin column purification device for mirabilitum praeparatum toothpaste production provided by the utility model can effectively separate and purify amino acid and tea polyphenol in a tea extract, and improves the treatment capacity of a tea extracting solution.

The invention discloses a compound type freezing fresh-keeping solution for waxberries. The compound type freezing fresh-keeping solution is subacid electrolyzed water containing sodium chloride with the mass concentration of 5.0-10.0%, calcium lactate with the mass concentration of 1.0-3.0%, sea-buckthorn pectin with the mass concentration of 0.1-0.8%, chitosan with the mass concentration of 0.3-1.0%, cyclodextrin with the mass concentration of 0.05-0.5%, ascorbic acid with the mass concentration of 0.05-0.2% and green tea polyphenol with the mass concentration of 0.05-0.5%. According to the freezing fresh-keeping liquid, through the synergistic effect of multiple components, the freezing point of the fresh-keeping liquid is remarkably reduced, formation of ice crystals is inhibited, oxidative browning of fruits is slowed down, the color, flavor and texture of waxberries are effectively kept, and meanwhile growth and reproduction of microorganisms are remarkably inhibited. The fresh-keeping liquid has the characteristics of being green, safe and environment-friendly, can effectively improve the quality stability of the waxberries in the freezing storage process, and is suitable for freezing storage and fresh keeping of the waxberries.

The invention discloses a regulator for improving grape fruit fragrance and a preparation method thereof, and belongs to the technical field of grape cultivation, each liter of regulator comprises 50 mg-120 mg of chitosan oligosaccharide, 20 mg-50 mg of sodium selenite, 10 mg-20 mg of jasmonic acid methyl ester, 100 mg-250 mg of green tea polyphenol, 10 mg-20 mg of trehalose, 1 mL-5 mL of thymol nanoemulsion, 10 mg-20 mg of beta-cyclodextrin and 0.8 g-1. 0 g of ethyl alcohol, and water is used as a solvent. The content of strawberry ketone, ester and norisoprene compounds in the fruits to which the regulator is applied is obviously increased, nerol and beta-ionone are detected, and the variety of terpene aroma substances is enriched; after the fruit is stored in a high-temperature and high-humidity environment for 3 days, the aroma component change of the fruit to which the regulator is applied is relatively insignificant, and the aroma of the fruit is more stable than that of a reference substance and a blank reference substance.

The application discloses a kind of composite nanofiber face masks and preparation method thereof, belong to skin care product technical field, composite nanofiber face mask includes fiber matrix and plant source active ingredient, plant source active ingredient includes one or more of rice bran extract, aloe extract and green tea polyphenol, fiber matrix includes polyvinyl alcohol and silk fibroin, the mass ratio of plant source active ingredient and fiber matrix is 10-18:100.The application uses the above-mentioned one kind of composite nanofiber face mask and preparation method thereof, and plant source active ingredient containing natural antibacterial component is physically embedded and dispersed in fiber interior or fiber network, relies on dry state storage and physical stabilization process, it is helpful to improve the dry state storage stability of product, and reduces the dependence on traditional preservative system.

The invention discloses an etching solution for alloy surface treatment and a preparation method thereof, and relates to the field of etching solutions. The preparation method comprises the following steps: firstly, preparing mesoporous titanium dioxide by a sol-gel method, modifying the mesoporous titanium dioxide by an amino coupling agent, loading green tea polyphenol and preparing a self-made corrosion inhibitor from konjac glucomannan grafted with quaternary ammonium groups, adsorbing dopamine by utilizing electrostatic interaction, and polymerizing to form pH response hydrophilic particles; in the etching process, when the solution is slightly acidic, the corrosion inhibitor is released to inhibit excessive etching; meanwhile, carboxymethyl cellulose is grafted with sulfonic acid groups, N-(phosphonomethyl) iminodiacetic acid modified chitosan is used for preparing complexing agents A and B, and after compounding, the complexing agents A and B are mixed with components such as hydrophilic particles to obtain etching liquid; the compound complexing agent can form a strong coordination bond with metal ions and can also be chelated with heavy metal ions; chitosan, phosphonic acid groups and hydrophilic particles cooperate with one another, so that the surface hydrophilicity of the alloy is improved, and hydrolytic precipitation and scale attachment are effectively inhibited. The prepared etching liquid for alloy surface treatment has the effects of high efficiency and uniform etching.

The invention discloses an electrochemiluminescence perovskite quantum dot probe with a stable water phase and a preparation method and application thereof. Aiming at the technical bottleneck that the existing perovskite quantum dots are unstable in a water phase and are difficult to be directly used for liquid phase detection, the invention provides a method for preparing an oleylamine / trifluoropropionic acid (OAm / TFPro) double-ligand protected perovskite quantum dot (PQDs) probe by adopting a water phase co-deposition method. The TFPro ligand and water molecules form a hydrogen bond interface through a fluorine-containing group of the TFPro ligand, and a protective layer is constructed on the surfaces of the PQDs, so that the PQDs can be stably dispersed in a water phase for a long time, and efficient electrochemical luminescence (ECL) activity is maintained. An ECL sensing platform constructed based on the probe realizes high-sensitivity and high-selectivity detection of tea polyphenol in tea leaves, and has the advantages of wide linear range, low detection limit, strong anti-interference capability and the like. The method is simple in process and low in cost, and a novel efficient detection tool is provided for the field of food quality safety.

The application belongs to the technical field of microorganisms, and specifically discloses a Burkholderia gladioli with improved tea quality and an application thereof. The preservation number of the Burkholderia gladioli is CCTCC NO: M 20241144. The strain has high-efficiency activity of dissolving organic phosphorus and inorganic phosphorus, strong ability of producing IAA and iron carrier, certain inhibiting capacity on fungal pathogenic bacteria, and can improve tea bud density, increase the content of free amino acids in tea, reduce the content of tea polyphenols in tea and the phenol-ammonia ratio, so as to improve the quality of tea.

The invention discloses a processing method of a Wuyi rock tea drink based on a modified beta-lactoglobulin composite system, and belongs to the technical field of tea drink processing. Food-grade beta-lactoglobulin is subjected to glycosylation modification and then is compounded with xanthan gum to form the composite additive, the beta-lactoglobulin and astringent compounds such as tea polyphenol in tea soup are subjected to non-covalent binding, stable complex precipitates are formed, and the astringent taste of the tea soup is remarkably reduced; meanwhile, the modified beta-lactoglobulin and natural polysaccharides such as xanthan gum have a synergistic effect, so that the phenomena of precipitation (tea cheese) and turbidity in the storage process are effectively reduced, and the clarity of tea soup is improved to a certain extent, so that the flavor of the product is improved, and the shelf life of the product is greatly prolonged. The technological process is simple and easy to implement, and a solution with both quality and benefits is provided for the development of Wuyi rock tea drinks.

The invention discloses a rhizoma polygonati anti-aging extract and a preparation method thereof. The method comprises the following steps: pre-treating raw materials by adopting a composite cleaning agent containing green tea polyphenol and a ginger extract; soaking with a sugar protecting agent containing fructo-oligosaccharide and L-ascorbyl palmitate; carrying out nine-steaming nine-drying treatment after gradient ultrasonic cleaning, and recovering polysaccharide in condensed water through spiral condensation, centrifugation and ceramic membrane filtration in the steaming process; the preparation method comprises the following steps: extracting with hot water, heating and concentrating, mixing the obtained extract with polysaccharide recovered from condensed water, compounding with a cistanche deserticola extract according to a ratio of 3: 2, mutually dissolving with a composite cosolvent, carrying out gelatin-Arabic gum microencapsulation, and finally granulating with a slow-release matrix. According to the invention, the problems of loss of pretreatment polysaccharide, waste of active ingredients of condensed water, poor stability of terminal products, asynchronous release and the like are solved through a full-chain technology, and the retention rate, the stability and the anti-aging synergistic effect of the active ingredients are remarkably improved.

The invention discloses an active substance for repairing a cat sensitization type barrier and a preparation method and application thereof, and relates to the technical field of animal health care products. The cat feed additive comprises one or more of heartleaf houttuynia herb extract, green tea polyphenol, ginkgo leaf extract, glutamine, beta-glucan, linoleic acid, vitamin B6, vitamin B2 and the like, and the components jointly act on oxidative stress, inflammatory response and metabolic process of intestinal tracts and skin of cats. By measuring indexes such as inflammatory factors, oxidative stress and tight junction protein and combining in-vitro metabonomics and transcriptomics analysis, the pharmaceutical composition has remarkable effects in the aspects of oxidation resistance, inflammation resistance, mucosal barrier repair and the like. In addition, the invention also provides application of the active substance in preparation of food for repairing cat barrier dysfunction. Compared with the prior art, an effective health-care strategy can be provided, and cat barrier dysfunction can be remarkably repaired.

The invention provides a multifunctional cotton fabric finishing process based on plant extract microcapsules, and belongs to the technical field of textile processing.The multifunctional cotton fabric finishing process comprises the steps that microcapsule powder and a cross-linking agent are added into water, the pH is adjusted to be acidic, and steeping liquor is obtained; the cotton fabric is subjected to two-time dipping and two-time rolling in the dipping liquid; taking out the cotton fabric, pre-baking, baking, washing with water, soaping, and drying at 80 DEG C for 10 minutes to obtain the multifunctional cotton fabric based on the plant extract microcapsules. Core material components of the microcapsule powder are wormwood extract, green tea polyphenol, aloe polysaccharide and citric acid modified soybean protein, wall material components of the microcapsule powder are chitosan and sodium alginate, the mass ratio of the chitosan to the sodium alginate is 3: 1, and the finished cotton fabric is suitable for medical textiles, household fabrics (such as outdoor clothes) and infant textiles and is wide in application range.

This invention discloses a nasal spray containing novel Iota carrageenan oligosaccharides, relating to the field of pharmaceutical formulation technology. The spray comprises: novel Iota carrageenan oligosaccharides with degrees of polymerization of 2 and 4, prepared by stepwise synergistic enzymatic hydrolysis of cellulase and carrageenase, as well as N-trimethyl chitosan, hydroxypropyl-β-cyclodextrin, green tea polyphenols, and vitamin E, etc. Its preparation process involves ultrasonic compounding to allow charged components to electrostatically self-assemble into a polyelectrolyte complex network. This invention significantly reduces system viscosity, improves atomization performance and bioavailability; by enhancing the adhesion of the drug solution to the nasal mucosa surface, the retention time of the active ingredient is extended to more than 6 hours; combined with green tea polyphenols, it achieves dual protection of physical barrier and biochemical inhibition; and the formulation exhibits high physicochemical stability, is non-irritating to the nasal mucosa, and has excellent safety.

The invention relates to a preparation method and application of collagen fermentation broth, and the method comprises the following steps: preparing a natural culture medium which comprises a carbon source, a nitrogen source, a metabolism activator and a precursor additive; the metabolism activator is a green tea polyphenol extract, and the precursor additive is prepared from glycine, proline and Hyp-Gly-Pro tripeptide; performing sterilization treatment on the natural culture medium; in a bioreactor, a sterilized natural culture medium is used for seed culture of strains under specific conditions until the viable count reaches (2.1 + / -0.3) * 10 < 9 > CFU / mL; carrying out staged plant induced fermentation; and purifying and concentrating the fermented product to obtain the original protein fermentation liquor. According to the method, the technical bottleneck that collagen cannot be directly synthesized by lactobacillus plantarum is solved, and meanwhile, the structural stability and transdermal absorption of the product are improved.

Disclosed is a process for the assembly of protein-polyphenol conjugate stabilized nanoemulsions (PPCSNEs) by a process that comprises: (a) combining (i) a first surfactant comprised of a pre-synthesized composite species made up of a biocompatible protein and polyphenolic species, (ii) a therapeutic amount of one or more psychedelic APIs, (iii) a triglyceride oil, and optionally (iv) a co- surfactant in a container, (b) high-shear mixing said ingredients in a container to form a coarse-emulsion product, and (c) subjecting the coarse-emulsion through a microfluidic device to produce a protein-polyphenol conjugate nanoemulsion containing a psychedelic agent.

The invention discloses a tea flavor quality improving method based on microbial solid state fermentation, which comprises the following steps: step 1, raw material treatment: performing fixation, rolling and drying treatment on tea leaves to obtain pretreated tea leaves; step 2, treatment of strains for fermentation, inoculation and culture of aspergillus oryzae, saccharomycetes and lactic acid bacteria, extraction and preparation of a strain mixed solution; step 3, inoculated fermentation: performing inoculated mixing on the strain mixed solution obtained in the step 2 and the pretreated tea leaves obtained in the step 1, and then putting the tea leaves inoculated with strains into a fermentation tank for fermentation treatment to obtain fermented tea leaves; and step 4, performing post-treatment on the tea leaves: performing drying treatment on the fermented tea leaves obtained in the step 3, and performing screening treatment to obtain the drinkable fermented tea leaves. According to the technical scheme, the content of tea polyphenols in the obtained tea leaves is 12.3%, the total amount of amino acids is 3.8%, the content of the tea polyphenols is reduced, the bitter taste of tea water is effectively reduced, and the fragrance of the tea water is improved.

The invention discloses a natural Chinese herbal medicine hair nourishing composition and a preparation process thereof, and relates to the technical field of hair nourishing and caring, the composition comprises 8-12 parts of a targeted inhibition core Chinese herbal medicine group, 2-3 parts of a scalp conditioning and synergistic group, and 85-90 parts of a pharmaceutic adjuvant adaptation system; the targeted inhibition core Chinese herbal medicine group consists of the following components: 1.5-2 parts of a green tea polyphenol extract, 0.8-1 part of a rosemary supercritical CO2 extract, 0.5-1 part of a poria cocos triterpene purified product, 2-3 parts of a cacumen biotae ethanol extract, 1-1.5 parts of a glossy privet fruit ethanol extract, 0.8-1 part of a mulberry leaf extract and 0.8-1 part of a polygonum multiflorum ethanol extract; a function complementary hair nourishing formula system is constructed, all the components are reasonably matched, the activity of the raw materials is reserved after treatment, and a mild and effective foundation is laid for external hair nourishing; meanwhile, the preparation process is standardized, the quality control is strict, the product quality and safety are guaranteed in multiple links from preparation to storage, effective component retention, practicability and safety are considered, and the safe and effective hair nourishing requirements of users are met.

The invention provides a green tea polyphenol antibacterial sanitary towel and a preparation method thereof. The green tea polyphenol antibacterial sanitary towel comprises a flow guide surface layer, an antibacterial functional layer, an absorption core body and a breathable bottom layer which are sequentially stacked, the antibacterial functional layer is composed of a non-woven fabric base material and a composite antibacterial layer compounded on the surface of the non-woven fabric base material; the composite antibacterial layer comprises composite sustained-release microspheres, citric acid modified attapulgite clay, epsilon-polylysine hydrochloride and hydroxypropyl methyl cellulose, and the composite sustained-release microspheres are obtained by sequentially carrying out beta-cyclodextrin inclusion and sodium alginate / chitosan composite gelation on green tea polyphenol and a honeysuckle flower extract. According to the sanitary napkin provided by the invention, the micro-ecological balance of the private part is maintained through physical adsorption, chemical sterilization and plant slow release while the condition that a chemically synthesized bacteriostatic agent stimulates the sensitive part of the private part is avoided, and the allergy and inflammation risks are remarkably reduced.

The present invention relates to a composition for improving skin health containing an active ingredient-enhanced green tea flower enzyme reactant, the enzyme reactant according to the present invention being generated by inducing an enzyme reaction by using a green tea flower extract as a substrate and using a green tea flower-derived crude enzyme solution in a specific growth period, thereby improving the content of an active ingredient and the enzyme activity. The composition has the advantage of being capable of exhibiting excellent skin health improving ability.

The invention relates to the technical field of food processing, in particular to a composite selenium-rich solid beverage and a preparation method thereof. The invention provides a compound selenium-rich solid beverage which comprises the following components: selenium-rich black rice, a compound biphase selenium source, compound prebiotics, green tea polyphenol, momordica grosvenori glucoside, zinc citrate and a shiitake mushroom extract, and further provides a preparation method of the compound selenium-rich solid beverage. Comprising the steps of pulse microwave low-temperature mixing, vacuum low-temperature drying, ultrahigh-pressure cold sterilization and the like, a low-temperature non-thermal processing technology is adopted in the whole process of the method, functional active ingredients are reserved to the maximum extent, and the prepared composite selenium-rich solid beverage is excellent in sensory quality and wide in eating adaptability.

The invention relates to the technical field of pet food, in particular to pet anti-oxidation food added with natural plant active ingredients and a preparation method of the pet anti-oxidation food, and the pet anti-oxidation food is prepared by adopting the processes of mixing, extrusion puffing, drying and cooling; the preparation method comprises the following steps: forming a compound from curcumin and phospholipid, and then embedding the compound and green tea polyphenol in a hydrogel shell together to form a composite microcapsule; placing the cooled pet food basic particles in a vacuum chamber, spraying chicken oil into the vacuum chamber under the condition that the pressure is lower than 10kPa, keeping for 2-5 minutes, spraying composite microcapsule powder into the vacuum chamber for 5-15 minutes under the condition that the pressure is increased to 30-50kPa again, then stopping vacuumizing, and restoring the normal pressure to obtain the antioxidant food. According to the preparation method disclosed by the invention, the curcumin-phospholipid compound is constructed, a W1 / O / W2 double emulsion technology is utilized, water-soluble green tea polyphenol and fat-soluble curcumin are jointly embedded in one microcapsule, and a freeze-drying process is combined, so that the anti-oxidation effect of pets is improved.

This invention discloses a tea tree cultivation method for increasing the content of tea polyphenols in tea leaves, relating to the field of tea cultivation technology. The tea tree cultivation method of this invention includes the following steps: (1) Before the spring tea buds sprout, a soil conditioner is applied to the soil between the tea tree rows; the soil conditioner comprises the following raw materials by weight percentage: 20-30% cake fertilizer, 15-25% decomposed biogas residue, 2-7% microbial inoculant, 10-15% phosphate rock powder, 10-15% potassium magnesium sulfate, 1-2% zinc sulfate, 1-2% manganese sulfate, 3-5% sulfur powder, and 10-20% auxiliary components; (2) After tea tree pruning, at the initial stage of tea tree budding, and after each tea picking, a water-soluble foliar fertilizer is sprayed onto the tea tree canopy; the water-soluble foliar fertilizer contains ≥1.2g / L of selenium and ≥100g / L of silicon. Implementing this invention can significantly increase the content of tea polyphenols in tea leaves.

The invention discloses a Danshen heart-protecting tea atomized liquid matched with atomization equipment and a preparation method thereof. The atomized liquid is prepared from such natural components as salvia miltiorrhiza, green tea, eucommia ulmoides, apocynum venetum, sophora flower, polygonum multiflorum, loranthus parasiticus, black sesame, lily, chrysanthemum, corn stigma and schisandra chinensis as raw materials, and a core efficacy system of the atomized liquid is as follows: such components as salvia miltiorrhiza and eucommia ulmoides synergistically act on a cardiovascular system, such components as green tea and chrysanthemum assist in promoting microcirculation, such components as black sesame and corn stigma synergistically regulate lipid metabolism, and promote blood circulation. Green tea polyphenol, schisandra chinensis and the like form an anti-oxidation synergistic system, lily, apocynum venetum and other components synergistically relieve the nervous system, efficient delivery of active ingredients in the lung is achieved through an atomization device, and compared with a traditional intake mode, the traditional Chinese medicine composition has a higher absorption rate and is especially suitable for groups needing daily health maintenance.

The invention relates to the technical field of cosmetics, in particular to an NAD + composite plant extract composite liquid and a preparation method and application thereof.The NAD + composite plant extract composite liquid is prepared from, by weight, 3-6 parts of nicotinamide adenine dinucleotide, 10-12 parts of leontopodium alpinum composite extract, 6-8 parts of resina draconis extract and 6-8 parts of centella asiatica extract. The composition is prepared from the following components in parts by weight: 3 to 5 parts of hyaluronic acid modified aloe polysaccharide, 3 to 5 parts of modified chitosan, 2 to 6 parts of zinc glycinate, 1 to 2 parts of astaxanthin, 1 to 2 parts of green tea polyphenol, 2 to 5 parts of 3, 4-diaminodiphenyl ether, 1 to 3 parts of resveratrol, 1 to 3 parts of quercetin, 1 to 3 parts of apigenin and 1 to 3 parts of black pepper pigment. The leontopodium alpinum composite extract is composed of a leontopodium alpinum flower / leaf extract, a leontopodium alpinum callus extract and a leontopodium alpinum yeast fermentation lysate filtrate according to a weight ratio of (3-5): (1-2): 1. According to the compound liquid disclosed by the invention, the bioavailability and the stability of NAD + can be improved by matching and combining the raw materials, and the anti-aging effect of the compound liquid in cosmetics is improved.

The application relates to the field of plant extraction, and particularly discloses a green tea tea polyphenol extraction method, which comprises the following steps: S1, macroporous resin separation is adopted after green tea raw materials are washed with acid water and then eluted with ethanol to prepare tea polyphenol extract; S2, the prepared tea polyphenol extract is first passed through a cellulose column filled with cellulose filler prepared by taking epicatechin as a template agent molecule, then eluted with ethyl propionate to prepare an EC extract; and S3, the tea polyphenol extract after passing through the cellulose column is passed through a modified PCL-PHEMA copolymer resin column containing an ether bond, then eluted with an ethanol solution to prepare an EGCG extract. The application has the characteristics of realizing green tea tea polyphenol extraction and further realizing the separation and extraction of EGCG and EC.

The invention relates to the technical field of oral cavity compositions, and discloses an oral cavity nursing composition and a preparation method thereof.The preparation method comprises the steps that S1, green tea polyphenol, lactoferrin and grapefruit seed extract are dissolved in water according to the mass ratio of 1: 1: 1 and compounded with beta-cyclodextrin and chitosan to form an embedding system, and spray drying is conducted to prepare bacteriostatic microcapsules; s2, dispersing nano-hydroxyapatite in a glycerin-water mixed solution, adding sodium fluoride and calcium lactate, adjusting the pH value, and filtering to obtain a repair solution; s3, mixing eudesmol, spearmint oil and alpha-tocopherol to obtain a fragrant oil phase; s4, preparing a water-phase gel, adding the repairing liquid and the oil phase, emulsifying, and adding the micro-capsule to obtain a composite emulsion; and S5, adding a disodium hydrogen phosphate-citric acid buffer solution, and adjusting the pH value to 6.8-7.2 to obtain a finished product. The long-acting release and physical and chemical stability of the oral care composition in the aspects of bacteriostasis, repair and fragrance are realized.

The invention relates to the technical field of nano material preparation, in particular to spine-shaped zinc oxide nanoparticles and a preparation method and application thereof.The preparation method comprises the steps that green tea extract powder is subjected to gamma-ray irradiation treatment, green tea polyphenol obtained through extraction treatment is mixed with a zinc source and an alkali solution, the pH is adjusted, and precipitates are obtained after a reaction; and calcining the precipitate to obtain the spine-shaped zinc oxide nanoparticles. Green tea polyphenol is obtained from the green tea extract powder subjected to gamma-ray irradiation treatment and serves as a reducing agent and a stabilizing agent; the green tea polyphenol reacts with a zinc source, so that the spine-shaped ZnO nanoparticles are synthesized in a green manner. The zinc oxide nanoparticle prepared by the preparation method has a spine-shaped structure and good crystallinity, the median inhibitory concentration of the zinc oxide nanoparticle in a castration resistant type prostate cancer cell line is obviously lower than that of a hormone sensitive type prostate cancer cell line, and the zinc oxide nanoparticle shows a more obvious cytotoxic effect on invasive prostate cancer.