20 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.

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 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.

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 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 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 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 field of biological food, in particular to an antiallergic functional green tea polyphenol preparation which comprises green tea freeze-dried powder and epigallocatechin gallate compounded with the green tea freeze-dried powder. The mass ratio of the green tea freeze-dried powder to the epigallocatechin gallate is 1: (2-3). According to the green tea polyphenol preparation, EGCG and green tea freeze-dried powder are compounded, and experiments prove that the prepared green tea polyphenol preparation can remarkably regulate the expression quantity of intestinal cell line species IL-4 and TSLP and regulate and control food anaphylaxis on the gene expression level, so that a feasible way is provided for realizing a relatively considerable anti-anaphylaxis effect. Therefore, a theoretical basis is provided for efficient targeted development and utilization of active tea resources and mechanism research of food allergy, data support is provided for development of functional food, and a new technical method and thought are provided for related research and application in the fields of life science, biotechnology and the like.

The application discloses a kind of bio-based antibacterial fireproof polyurethane synthetic leather and its preparation method and application, the polyurethane synthetic leather, from top to bottom, includes bio-based polyurethane surface layer, bio-based polyurethane bonding layer and substrate layer, wherein: polyurethane surface layer includes tea extract, lignocellulose and other components, polyurethane bonding layer includes phytic acid modified isocyanate prepolymer, lignocellulose and other components.The application uses tea polyphenols in tea extract as antibacterial components and antioxidant components, and forms crosslinking structure with curing agent in surface layer resin at the same time, improves the combination of polyurethane coating, and further improves the color fastness and durability of product;Lignocellulose and other components act as carbon structure and phytic acid modified polyurethane bonding layer to improve the flame retardant performance of product.The application uses bio-based materials reasonably, and obtains bio-based antibacterial fireproof polyurethane synthetic leather with good durability.