Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1093 results about "Tyrosinase" patented technology

Tyrosinase is an oxidase that is the rate-limiting enzyme for controlling the production of melanin. The enzyme is mainly involved in two distinct reactions of melanin synthesis; firstly, the hydroxylation of a monophenol and secondly, the conversion of an o-diphenol to the corresponding o-quinone. o-Quinone undergoes several reactions to eventually form melanin. Tyrosinase is a copper-containing enzyme present in plant and animal tissues that catalyzes the production of melanin and other pigments from tyrosine by oxidation. It is found inside melanosomes which are synthesised in the skin melanocytes. In humans, the tyrosinase enzyme is encoded by the TYR gene.

Method for detecting phenol compounds in water body environment through enzyme electrochemical biosensor

The present invention relates to a method for detecting phenol compounds in a water body environment through an enzyme electrochemical biosensor. The biological sensor detection apparatus comprises a working electrode, an auxiliary electrode, a reference electrode, a detection cell and an electrochemical workstation. The specific operation steps comprise: adding a hydrophilic ionic liquid (such as 1-butyl-3-methylimidazolalanine and BMIM [Ala]) to a mesoporous carbon solution, and shaking for half an hour to obtain a novel mesoporous carbon and hydrophilic ionic liquid composite material; adding tyrosinase to the mesoporous carbon and hydrophilic ionic liquid composite material solution, shaking for one hour, and adding the obtained solution to the surface of a working electrode in a dropwise manner to obtain a tyrosinase immobilized working electrode; and inserting the tyrosinase immobilized working electrode, the auxiliary electrode and the reference electrode into a detection cell filled with a phosphate buffer solution, and adding a single standard substance of a phenol compound under a stirring condition to produce a corresponding current response signal.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Biological enzyme process antibacterial and anti-wrinkle finishing method of silk fabric

The invention discloses a biological enzyme process antibacterial and anti-wrinkle finishing method of a silk fabric, belongs to the field of a textile biotechnology, and aims to overcome the defects of high baking temperature, high probability of damage of silk fibers and reduced whiteness in real silk antibacterial and anti-wrinkle treatment of the conventional chemical method and realize enzyme-promoted antibacterial and anti-wrinkle functional modification of a real silk fabric. According to the method, a chitosan natural finishing agent with a primary amine structure is grafted to the surface of the silk fiber by utilizing the catalytic oxidation effect of tyrosinase, so that the antibacterial and anti-wrinkle effects of the silk fabric are improved. The process flow comprises the following steps of: pre-treating the silk fabric; catalyzing grafting modification treatment of chitosan by the tyrosinase; washing; and drying. Through the silk fabric treated by the invention, the antibacterial performance is improved, the wrinkle recovery performance is improved, and the mechanical property and the dyeing performance of the fabric are also improved. Compared with the conventional chemical method, the method has the advantages of adoption of the tyrosinase process for catalysis of the antibacterial and anti-wrinkle treatment process of the real silk, low energy consumption, high efficiency, less pollution and contribution to environmental protection.
Owner:FOSHAN CITY HANHAI YANBU SISTER FLOWER UNDERWEAR

Composite whitening and spot correcting lotion and manufacturing method thereof

The invention specifically discloses a composite whitening and spot correcting lotion, and a manufacturing method thereof. The spot correcting lotion is manufactured from raw materials of, by weight: 2.5 to 25 parts of traditional Chinese medicine active site extracts, 0.5 to 5 parts of arbutin, 0.05 to 0.2 parts of sodium hyaluronate, 5 to 10 parts of soybean fermentation extract, 1 to 10 parts of 1,3-butylene glycol, 1 to 10 parts of propylene glycol, 0.2 to 0.8 parts of tween-80, 0.1 to 0.4 parts of methyl-p-hydroxybenzoate, 0.1 to 0.4 parts of propylparaben, 0.5 to 5 parts pf ethanol, and 33.2 to 89.05 of deionized water. The traditional Chinese medicine active site extracts comprise raw materials of, by weight: 5 to 15 parts of ginseng, 5 to 20 parts of mongolian milkvetch root, 5 to 25 parts of white peony root, 5 to 30 parts of licorice, and 5 to 35 parts of cottonrose hibiscus flower. According to the composite whitening and spot correcting lotion provided by the invention, a plurality of traditional Chinese medicine active components are added to whitening and spot correcting active substances, such that the activity of tyrosinase can be effectively inhibited, oxygen-derived free radicals can be removed with high efficiency, and melanin can be prevented from appearing. With the composite whitening and spot correcting lotion, various freckles and chloasma can be comprehensively and rapidly corrected. Also, the lotion brings no toxin or harm.
Owner:GUANGZHOU HUANYA COSMETIC SCI & TECH CO LTD

Chinese medicinal compound extract for whitening and removing freckles and preparation method thereof

The invention discloses a Chinese medicinal compound extract for whitening and removing freckles and a preparation method thereof, relates to a medicament for whitening and removing the freckles, and solves the problems of slow curative effect, low cure rate and inconvenient administration of Chinese medicaments for a long term in the treatment for chloasma at present. The Chinese medicinal compound extract for whitening and removing the freckles is prepared from bupleurum, Chinese angelica, white paeony root, dogwood, large-head atractylodes rhizome, Indian buead, szechuan lovage rhizome, peach seed, white muscardine silkworm, roasted ginger, mint and radix glycyrrhizae preparata; and the product is prepared by adopting carbon dioxide supercritical extraction technology. The method has the advantages of simpleness and convenient operation, and can highly enrich active ingredients. Therefore, the bioavailability is improved; the pharmacological activity is obviously enhanced; and the obtained product has small volume and does not contain solid impurities which cannot be emulsified. The Chinese medicinal compound extract effectively suppresses the activity of tyrosinase and melanogensis, removes or improves the chloasma, and responds within about one month, and the cure rate reaches 99.98 percent. The Chinese medicinal compound extract can be used as an active ingredient for directly preparing an external medicinal preparation and cosmetics for whitening and removing the freckles, is easy to carry, and is convenient to use.
Owner:张宁

Composition with efficacies of whitening, moisturizing, repairing and caring skin, as well as preparation method and applications of composition

The invention relates to a composition with the efficacies of whitening, moisturizing, repairing and caring the skin, as well as a preparation method and applications of the composition. The skin care composition is prepared from the following raw materials: water, sodium hyaluronate, sodium dihydrogen phosphate dihydrate, potassium chloride, sodium hydroxide, calcium chloride, glutamine, benzalkonium chloride, magnesium sulfate, aminobutyric acid, sodium ascorbate, alanine, arginine, lysine hydrochloride, valine, histidine, leucine, taurine, coenzyme A, alcohol, polysorbate 80, thiamine, disodium diphosphate, recombinant human epidermal cell growth factors and the like. The skin care composition disclosed by the invention can permeate the muscle bottom for replenishing water for the skin from the deep layer, so that the skin is full of elasticity, the color of the skin is brightened, the fine wrinkles are reduced, the skin is clean and watery, the balance of water and oil is regulated, the pores are shrunk, meanwhile, the brightness of the face can be increased, the injured epidermal layer is effectively repaired, the activity of tyrosinase is inhibited, the generation of skin melanin is reduced, so that the skin is healthy, natural and white.
Owner:刘毅

External preparation for treating leukoderma and method for preparing and using the same

The invention discloses an external preparation for treating vitligo and a preparation and using method thereof. The external preparation comprises the following components in portion by weight: 10 to 30 portions of radix salviae miltiorrhizae, 10 to 30 portions of rhizoma drynariae, 10 to 30 portions of herba ecliptae, 10 to 30 portions of angelica, 10 to 30 portions of dodder, 10 to 30 portions of white fructus tribuli, 10 to 30 portions of purslane, 10 to 30 portions of dark plum, 10 to 30 portions of cnidium fruit, 10 to 30 portions of prepared fleece-flower root, 10 to 30 portions of safflower, 10 to 30 portions of black sesame, 10 to 30 portions of szechuan lovage rhizome, 10 to 30 portions of gromwell root, 10 to 30 portions of honeysuckle, 10 to 30 portions of malaytea scurfpea fruit, 2 to 8 portions of radix euphorbiae ebractealatae, 10 to 15 portions of toad shell and 2 to 8 portions of chilopod. The external preparation can invigorate blood circulation and eliminate freckles, inhibit epidermis sulphydryl and melatonin, and activate the activity of tyrosinase so as to recover or accelerate the generation and the transfer of melanin and recover the color element of pathological skin; and the preparation method is simple, and can obtain good economic benefit.
Owner:董娜

Nucleic acids and polypeptides useful for diagnosing and treating complications of pregnancy

ActiveUS20060166277A1Diagnosing and effectively treatingSave maternalMicrobiological testing/measurementDisease diagnosisPregnancyUdp glycosyltransferase
Disclosed herein are methods for diagnosing or treating pregnancy related hypertensive disorders that include the use of a polypeptide or a nucleic acid encoding a polypeptide selected from the following: follistatin related protein, interleukin 8, inhibin A, VEGF-C, angiogenin, beta fertilin, hypothetical protein, leukocyte associated Ig-like receptor secreted protein, erythroid differentiation protein, adipogenesis inhibitory factor, corticotropin releasing factor binding protein, alpha-1 anti-chymotrypsin, insulin-like growth factor binding protein-5, CD33L, cytokine receptor like factor 1, platelet derived endothelial growth factor, lysyl hydroxylase isoform 2, stanniocalcin precursor, secreted frizzled related protein, galectin-3, alpha defensin, ADAM-TS3, cholecystokinin precursor, interferon stimulated T-cell alpha chemoattractant precursor, azurocidin, sperminine oxidase, UDP glycosyltransferase 2 family polypeptide B28, neurotrophic tyrosine kinase receptor 2, neutral endopeptidase, CDC28 protein kinase regulatory subunit 2, beta glucosidase, lanosterol synthase, calcium/calmodulin-dependent serine protein kinase, estrogen receptor-alternatively spliced transcript H, chemokine (CX3C motif) receptor 1, tyrosinase-related protein 1, hydoxy-delta-5-steroid dehyrogenase, dihydropyramidinase-like-4, and cytochrome P450-family 11.
Owner:BETH ISRAEL DEACONESS MEDICAL CENT INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products