383 results about "Ellagic acid" patented technology

The invention relates to a method of using pomegranate rind as raw material to prepare ellagic acid by enzymatic method, belonging to the food, medical and chemical fields. The method uses the pomegranate rinds which are numerously discarded by people in China as raw materials to extract ellagitannin. The characteristics of high catalysis efficiency, strong selectivity, moderate processing conditions, and the like of enzyme are used to obtain tannase containing degraded ellagitannin through fermentation. The enzymatic reaction between the tannase and the ellagitannin happens to generate the ellagic acid. After the solvent crystallization purification, the medical ellagic acid with dear price and high purity is obtained. The method can lower the cost of the raw material, reuse wastes, improve the yield and the purity of the ellagic acid and can be applied to the large scale production.

The purpose of the invention is to provide a surgical mask with sufficient antibacterial properties, by uniformly manifesting on the surface of nanofibers a functional material with antibacterial and antiviral properties. The problem is solved by a mask with a functional material which comprises a nanofiber containing at least one base polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinyl chloride, polyurethane, polyester, zein, collagen and methoxymethylated nylon, and at least one functional substance selected from a group consisting of catechin polyphenols, persimmon tannin polyphenols, grape seed polyphenols, soybean polyphenols, lemon peel polyphenols, coffee polyphenols, phenylcarboxylic acid, ellagic acid and coumalin, and having a diameter of 1 nm to 2000 nm.

A composition for the prevention or alleviation of pigmentation which can produce the higher effect of preventing or alleviating pigmentation. The composition for the prevention or alleviation of pigmentation comprises a combination of (A) at least one member selected from the group consisting of adenosine 5′-monophosphate and salts thereof with (B) at least one member selected from the group consisting of arbutin, ellagic acid, 4-alkylresorcinols, linoleic acid, tranexamic acid, salts of these, Chamomilla recuita extract, and Ubiquinone.

The invention relates to a non-ionic composition used for removing keratin. The non-ionic composition comprises the following components by weight percent: 0.5-5% of non-ionic polyurethane dispersion liquid, 0.5-5% of non-ionic emulsifier, 0.5-5% of plant extract, 5-20% of moisturizer and the balance of deionized water and additive, wherein the non-ionic emulsifier is polyethylene glycol-240/ hexamethylene diisocyanate copolymer dual-decyl tetradecane alcohol polyether-20 ether; active ingredient in the plant extract is gallogen. According to the non-ionic composition, the non-ionic polyurethane dispersion liquid is used as a film-forming agent to be twisted, the non-ionic emulsifier is used for thickening, non-ionic safe raw material is adopted, feeling is close to skin, a zwitterion complex doe not need to be formed, matrix with low pH value is not needed, and the non-ionic composition is safe, non-irritation, bright white in appearance, smooth and elastic, good in use experience feeling, obvious in immediate effect, moderate and safe, and has the effect of softening the keratin for a long time.

A method for extracting multiple active ingredients of blueberry fruits comprises the steps that dried and smashed blueberry peel residues are firstly subjected to enzyme hydrolysis, then microwave extraction and solid-liquid centrifugal separation are performed, refined filtration is performed by using micropore filter bags, and filtrates are combined; discoloring and impurity removal are conducted on the mixed filtrate by using an ultra-filtration membrane, membrane re-separation is performed, vacuum concentration, alcohol precipitation and drying are conducted on the trapped filtrate to obtain a blueberry polysaccharide extract; passing-column absorption is conducted on the ultra-filtrated dialyzate through macroporous resin, then ethyl alcohol is used for elution and desorption, a desorbed solution is separated and concentrated by using a nano-filtration membrane, and vacuum concentration and freeze drying are conducted on the trapped solution to obtain a blueberry anthocyanin and original anthocyanin combined extract; nano-filtration membrane dialysate is subjected to further separation and dehydration by using a reverse osmosis membrane, vacuum concentration and spray drying are conducted on the trapped solution to obtain a blueberry ellagic acid etract. By means of the method, multiple effective ingredients including polysaccharide, original anthocyanin, anthocyanin, ellagic acid and the like of blueberries can be obtained, the extracts are higher in purity, good in quality, and a production process is green and capable of saving energy and is environmentally friendly.

The invention provides a nutritional preparation with selective whitening spot-removing efficacy and application thereof in medicinal cosmetics. The nutritional preparation is prepared by compounding of azelaic acid oligopeptide, ascorbic acid oligopeptide, tranexamic acid oligopeptide, retinoic acid oligopeptide, kojic acid oligopeptide, hydroxy acid oligopeptide, ellagic acid oligopeptide and other raw materials, and the oligopeptide is one or a compound of multiple of dipeptide, tripeptide, tetrapeptide, pentapeptide, hexapeptide, heptapeptide, octapeptides, nanopeptide and decapeptide. The medicinal cosmetics prepared form the nutritional preparation are original liquids, water preparations, masks, cream lotion, liquid foundation cream, gel, essence and other preparation forms. The cosmetics are prepared by compounding of the nutritional preparation, penetrating agents and auxiliary materials. The penetrating agents are plant essential oils, azone, carbitol and other medical penetrating agents. The auxiliary materials are thickeners, emulsifiers, packet agents, wetting agents, emollients, flavoring agents, preservatives and solvents which are used as main medicinal raw materials. A large number of clinical trials prove that the medicinal cosmetics prepared form the nutritional preparation have good selective whitening spot-removing and nutritional efficacy for the skin of human body.

The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.

The invention relates to an accessory ingredient capable of removing and avoiding generating hexavalent chromium in leather and a preparation method of the accessory ingredient, belonging to the technical field of chemical product manufacture. The accessory ingredient is mainly and technologically characterized by being prepared from raw materials including a reducing agent, an antioxidant, a dispersing agent, a masking agent and a pH value regulator. The reducing agent mainly comprises the following components: sodium sulfite, sodium hydrogen sulfite, sodium hyposulfate, sodium pyrosulfite and glucose; the antioxidant comprises the following components: sulfonated tannin extract, sulfited tannin extract, tea polyphenol, gallic acid, ellagic acid, vitamin C and vitamin E; the dispersing agent comprises the following components: an auxiliary naphthalene sulfonic acid synthetic tanning agent and an auxiliary phenolsulfonic acid synthetic tanning agent; the masking agent mainly comprises the following components: sodium formate, sodium acetate and sodium citrate; and the pH value regulator comprises the following components: citric acid and oxalic acid. The accessory ingredient is prepared through grinding, crushing and uniformly mixing. The accessory ingredient is few in raw material component, simpler in preparation method, free of pollution and capable of thoroughly removing and avoiding generating hexavalent chromium in leather.

The invention discloses an activated coagulation detection reagent and an application thereof. The reagent is prepared from the following components: an activating agent, mixed phospholipid and composite stabilizer, wherein the activating agent comprises one or more of kaolin, porcellanite, diatomite, ellagic acid, silicon dioxide and a tissue factor, and the composite stabilizer comprises a polymer, an anticorrosive agent and a water soluble antioxidant. The detection reagent does not use a buffer solution adopted in the prior art and does not use normal saline. By combining the activating agent, the mixed phospholipid and the composite stabilizer, the composite stabilizer is used as a solution environment, so that the stability of the detection reagent can be guaranteed. The detection reagent can effectively avoid the adverse influence of the buffer solution used in the prior art for promoting the hydrolysis of the phospholipid; and moreover, the activated coagulation detection reagent is low in cost, good in effect and stable in properties.

The invention discloses Chinese medicinal face repair cream and a preparation method thereof, and belongs to the field of cosmetics. The face repair cream contains the following active ingredients: mulberroside, resveratrol, pomegranate rind ellagic acid, phloretin, glabridin, cactus stock solution and aloe gel concentrated juice. The face repair cream contains speckle removing and whitening molecules of seven Chinese medicaments serving as the active ingredients, can quickly and accurately reach melanin cells by an optimal proportion, blocks the formation of pigments when the melanin is cleared and transformed, and enhances the oxidation resistance of the skin, so that the skin achieves optimal states and effects of moisturizing, whitening, brightening and protecting. The preparation method is simple and suitable for industrialized production.

The invention provides a natural antibacterial and skin-care polypropylene fiber and a preparation method thereof. The raw material formula of the polypropylene fiber includes 65-90% of polypropylene slices, 5-16% of sea mud powder, and 2.5-90% of echinacea extract. 6%, 1.5-5% of herb extract, 0.1-1.3% of nonylphenol polyoxyethylene ether, 0.5-3% of Xinggu oilseed oil, 0.1-0.7% of ellagic acid, 0.1 of isopropyl myristate ~1.3, coupling agent 0.2~1.7. The above-mentioned raw materials are compounded reasonably and synergistically. Its fragrance is elegant and clear, and it has good compatibility and skin affinity. It not only has a wide antibacterial spectrum, good antibacterial effect and long-lasting effect, but also provides the necessary nutrients for skin cell renewal. Skin cleansing, to achieve comprehensive care for human skin, and better improve the spinnability, moisture absorption, air permeability, dyeing uniformity and mechanical properties of the fiber, can be widely used in the production of textiles and medicines that are in close contact with the human body Industrial work clothes greatly broaden the application field of sea mud.

A dermal topical formulation containing p-menthane-3,8-diol and a whitening component such as arbutin, kojic acid, ellagic acid, ascorbic acid or its derivative, lactic acid, glycolic acid, tartaric acid, and an essence or an absolute extracted from a plant such as labdanum, jasmine and mugwort (T.vulgare). The dermal topical formulation is highly safe and capable of promoting the percutaneous absorption of the whitening component.

The invention discloses a method for extracting an ellagic acid from pomegranate peel. The method comprises the following steps of raw material treatment, high-pressure microjet superfine grinding treatment, high-pressure extraction, hydrolysis, purification, crystal collection, drying and obtainment of the ellagic acid. The method has the advantages of simple process, small pollution and the like, and is suitable for production and ensures that the content of the ellagic acid is high.

The invention relates to a preparation method of three chemical reference substances, chebulinic acid, chebuligic acid and ellagic acid, in terminalia chebula medicine. The method includes the following steps: 1) crushing dried fruits of terminalia chebula and performing ultrasonic extraction to obtain an extract liquid, and performing pressure-reduced concentration and drying to the extract liquid to obtain a crude extract dried powder; 2) with n-hexane/ethyl acetate/methanol/water as a solvent system, separating the crude extract through HSCCC to respectively obtain the chebulinic acid, the chebuligic acid and the ellagic acid, wherein the purities of the chebulinic acid, the chebuligic acid and the ellagic acid are all more than 95% through purity detection by means of high-performance liquid chromatography (HPLC). The method is simple and quick.

The invention discloses a method for extracting ellagic acid in pomegranate peel residue by using biological enzyme, belonging to the fields of food, medicine and chemical engineering. The method takes the pomegranate peel residue as raw material and water as solvent, and can be used for preparing the ellagic acid by using the biological enzyme. Biological compound enzyme of degradable ellagitannin can be used for carrying out enzymolysis reaction on the ellagitannin, and alkaline liquor is used for stopping the enzymolysis reaction; simultaneously, an alkaline water system can be formed for extracting the ellagic acid, and crude product of the ellagic acid can be obtained; and the extraction rate of the ellagic acid reaches 12.69-24% based on the content of the ellagitannin obtained in the step (1). The method has simple and continuous technique, environment-friendly manufacturing process, environmental protection and less discharge of the three wastes, and is suitable for large-scale industrialized production.

The invention relates to the field of pollutant controlling, and specifically relates to a vegetable tannin algae inhibitor and a method for inhibiting the overgrowth of algae in eutrophicated fresh water areas. The vegetable tannin algae inhibitor provided by the invention comprises one or more components selected from gentisic acid, ellagic acid, and tannic acid. All the components of the algaeinhibitor can be obtained through artificial synthesizing, and are cheap in price. The preparation method of the complex agent is simple, and has a strong operability. With the algae inhibitor, secondary pollution to the environment is not caused, water areas can be prevented from water bloom, and the stability of aquatic ecosystems can be maintained. With the complex algae inhibitor provided by the invention, over dose of single component can be effectively avoided, such that the damage to the aquatic ecosystems can be prevented, and various degrees of drug resistances gradually generated inalgae caused by long-term and repeated usage of single algae inhibitor can be effectively overcome or retarded. Also, with the algae inhibitor, algae inhibiting capacity and broad spectrum property of the algae inhibitor can be effectively improved.