219 results about "Gallate" patented technology

Environmental barrier coatings for high temperature ceramic components including: a bond coat layer; an optional silica layer; and at least one transition layer including: from about 85% to about 100% by volume of the transition layer of a primary transition material selected from a rare earth disilicate, or a doped rare earth disilicate; and from 0% to about 15% by volume of the transition layer of a secondary material selected from Fe2O3, iron silicates, rare earth iron oxides, Al2O3, mullite, rare earth aluminates, rare earth aluminosilicates, TiO2, rare earth titanates, Ga2O3, rare earth gallates, NiO, nickel silicates, rare earth nickel oxides, Lnb metals, Lnb2O3, Lnb2Si2O7, Lnb2SiO5, borosilicate glass, alkaline earth silicates, alkaline earth rare earth oxides, alkaline earth rare earth silicates, and mixtures thereof; where the transition layer is applied to the component as a slurry including at least water, the primary transition material and at least one slurry sintering aid, and where a reaction between the slurry sintering aid and the primary transition material results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer.

A composition is provided to treat and / or prevent for treating skin conditions including fine lines and wrinkles, acne rosacea, surface irregularities of the skin and hyper-pigmentation melasma of the skin, which includes use of a topically applied composition such as an ointment, lotion, cream, serum, gel or pad applied formulation, containing an effective amount of polyphenols, such as green tea based polyphenols, including but not limited to catechins, such as epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicathechin 3-gallate (ECG) and epicatechin (EC). The formulation is preferably composed of 90 percent polyphenol isolates, derived from green tea with potent antioxidant properties, to assist in minimizing free-radical induced skin damage.

Environmental barrier coatings for high temperature ceramic components including a bond coat layer; an optional silica layer; and at least one transition layer including: from about 85% to about 100% by volume of the transition layer of a primary transition material including a rare earth disilicate, or a doped rare earth disilicate; and from 0% to about 15% by volume of the transition layer of a secondary material selected from Fe2O3, iron silicates, rare earth iron oxides, Al2O3, mullite, rare earth aluminates, rare earth aluminosilicates, TiO2, rare earth titanates, Ga2O3, rare earth gallates, NiO, nickel silicates, rare earth nickel oxides, Lnb metals, Lnb2O3, Lnb2Si2O7, Lnb2SiO5, borosilicate glass, alkaline earth silicates, alkaline earth rare earth oxides, alkaline earth rare earth silicates, and mixtures thereof; where the transition layer is applied to the component as a slurry including at least an organic solvent, the primary transition material and at least one slurry sintering aid, and where a reaction between the slurry sintering aid and the primary transition material results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer.

The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions. In particular, preferred embodiments of the present invention comprise rare earth catalyst supports, catalyst compositions having rare earth supports, and methods of preparing and using the catalysts and supports. Accordingly, the present invention also encompasses an improved method for converting a hydrocarbon containing gas and an oxygen containing gas to a gas mixture comprising hydrogen and carbon monoxide, i.e., syngas, using the rare earth catalyst supports in accordance with the present invention. In addition, the present invention contemplates an improved method for converting hydrocarbon gas to liquid hydrocarbons using the novel syngas catalyst supports and compositions described herein.

A method and composition for preventing and treating Avian Influenza in Humans utilizes an effective quantity of polyphenolic(s) and / or its derivatives in combination with a carrier. The anti-avian influenza ingredient having a composition selected from the group consisting of theaflavin, theaflavin-3,3′-digallate, theaflavin-3-monogallate, theaflavin-3 gallate, theaflavin-3′-gallate, thearubigin, gallic acid, tannic acid, (−)-epigallocatechin gallate (EGCG), (−) epigalloatechin (EGC), (+)-epicatechin (EC), (−)-gallocatechin gallate (GCG), and catechin.

Provided are packaged, tea-based beverages, which stably contain catechins at high concentration, are free of any salty taste, and have the inherent flavor and taste of tea. They contain the following ingredients (A) and (B): (A) from 320 mg / 500 mL to 1,300 mg / 500 mL of non-polymer catechins, and (B) water, wherein: (C) the content of non-epicatechins in the non-polymer catechins is from 40 to 80 wt. %, (D) the content of gallates in the non-polymer catechins is from 35 to 100 wt. %, (E) the weight ratio of the non-polymer catechins to sodium ions is from 12 to 16, and (F) the pH is from 5 to 7.

The invention belongs to the field of medicine and gene engineering, and provides a composition for inhibiting the proliferation of tumor cells. The composition contains epigallocatechin gallate (EGCG) and daunorubicin (DNR), and the mass ratio of the epigallocatechin gallate to the daunorubicin is 600: 1-1: 2. The combination of the EGCG and the DNR, on one hand, ensures that the effect of inhibiting the proliferation of the tumor cells is more obvious than the superposition of single use effects, on the other hand, the combination of the EGCG and the DNR obviously reduces the using amount of the DNR, greatly reduces the cardiac toxicity of the DNR, and strengthens the anti-tumor effect of the DNR at the same time. The EGCG is a natural tea extract, has rich resource and low price, and almost has no toxic side effect after more than one thousand years of drinking, so the combination of the EGCG and the DNR relatively reduces the using amount of the DNR and drug cost. The invention provides a high-efficiency cheap anti-tumor pharmaceutical composition, which improves the inhibition rate of tumor and reduces the treatment cost of tumor patients at the same time.

The invention relates to the daily chemical field and the medicinal industry, and concretely relates to a chitosan quaternary amine salt gallate, a synthetic method thereof and an application thereof. A chitosan trimethyl quaternary amine salt is reacted with acylated gallic acid to obtain the chitosan quaternary amine salt gallate which has a structure represented by formula (1). The chitosan quaternary amine salt gallate obtained in the invention, which can be dissolved in water, has a synergic effect and allows the chitosan application to be enlarged, can be widely applied to the daily chemical field of medicines and the like.

The invention discloses a method for identifying the quality of Biluochun tea, which comprises the following steps of: after soaking the Biluochun tea, scanning the soaked solution by using an ultraviolet and visible spectrophotometer; and, after leaching and extracting another Biluochun tea, measuring the contents of epigallocatechin, epigallocatechin epicatechol gallate, epicatechin and epicatechin epicatechol gallate in the tea from the leached and extracted solution by adopting a high efficiency liquid chromatography. According to the method disclosed by the invention, a technology for identifying the quality of the Biluochun tea is established by adopting (a technology that spectrum and chromatograph are combined) spectrum and chromatograph analysis; the comprehensive evaluation data of green tea quality is provided; the method has the characteristics of being accurate, reliable, simple, convenient and efficient; and the method can be popularized and applied in the field of the green tea quality counterfeit identifying technology.

The invention relates to a composition for use in the prevention and treatment of cancer. The composition includes fermented soy extract, oligomeric proanthocyanidin, epigallocatiechin gallate, spirulina, curcumin and Antrodia camphorata. The composition of the invention effectively prevents the growth of cancer cells, especially colorectal cancer, ovarian cancer, breast cancer, cervical cancer, and liver cancer.

The invention belongs to the fields of medicine and gene engineering, relates to a new medicinal application of epigallocatechin-3-gallate EGCG, and particularly relates to an application of epigallocatechin-3-gallate in the preparation of antitumor drugs. Cell experiments demonstrate that the epigallocatechin-3-gallate is a CYPJ inhibitor, and has the capability of inhibiting liver cancer cell growth; a large dose of EGCG basically has no toxicity to liver, kidney and heart. Experiment results also show that when EGCG is added into a culture solution of tumor cells, the proliferation of tumor cells is inhibited; the tumor cells are blocked at the G1 stage; the activity of CYPJ is inhibited; the activation of an Erk signal path by CYPJ protein is blocked. The epigallocatechin-3-gallate of the invention can be used for the preparation of antitumor drugs, especially anti-liver cancer drugs; and the drugs are designed aiming at cell target points, and drug resistance is not easy to generate.

A method of distilling epigallocatechin-3-gallate from tea polyphenol is characterized in that acetylating reagent is used for acetylating polyphenol substance hydroxyl in the tea polyphenol; then completely acetylated epigallocatechin-3-gallate is obtained by silica gel column chromatographic separation; furthermore, the completely acetylated epigallocatechin-3-gallate is hydrolyzed under the acid condition and in protonic solvent to obtain the epigallocatechin-3-gallate which is dried to obtain the epigallocatechin-3-gallate without solvent. The present invention has the advantages of little raw material consumption and high yield and can be used for the large scale production of epigallocatechin-3-gallate monomers.

The invention relates to an electro-polymerization preparation method of an electrochemical sensor for quickly detecting EGCG (Epigallocatechin-3-Gallate), and relates to a technology in the field of active ingredient analysis and detection of an agricultural product. The method mainly comprises the following steps of: pre-treating a glass-carbon electrode; performing electro-polymerization filming on the surface of the glass-carbon electrode; and eluting template molecules to obtain EGCG molecularly imprinted membrane modified electrode, wherein the sensor can be used for quick detection of an EGCG-containing actual sample in combination of an electrochemical working station. The electro-polymerization preparation method has the advantages of high selectivity, high operation efficiency, high stability of the sensor, capability of being recycled, low cost and suitability for quick, real-time and field detection, and is suitable for quick detection of the content of the main active ingredient EGCG in tea and products thereof and quality evaluation of the tea or the tea products.

Novel compounds useful as chemotherapeutic and chemopreventive agents are provided. The compounds are analogs of polyphenol catechins that occur in green tea, such as epigallocatichin-3-gallate (EGCG), and have the structure of formula (I)wherein R1 through R11 are defined herein. Preferred R4 moieties are selected from O, S, NH and CH2, and in exemplary compounds, R4 is O and R5 is a tri-substituted aroyloxy substituent, such as a 3,4,5-substituted benzoyloxy group. Pharmaceutical compositions are provided as well, as are methods of chemotherapy and chemoprevention.

Disclosed are novel protective compositions for dermal papilla cells. In an embodiment the protective compositions of the present invention comprise 0.25% w / w or above of compositions comprising at least 10% w / w and above of 1-O-galloyl-β-D-glucose (β-glucogallin). In an embodiment, the said protective composition additionally comprises 50% to greater than 50% gallates including mucic acid 1,4-lactone 5-O-gallate, mucic acid 2-O-gallate, mucic acid 6-Methyl ester 2-O-gallate, mucic acid 1-Methyl ester 2-O-gallate and ellagic acid. In another embodiment the invention also encompasses synergistic protective compositions comprising the said protective compositions and 0.5% concentrate of liquid endosperm of Cocos nucifera, for dermal papilla directed towards helping the dermal papilla cells to form sufficient numbers and to retain a healthy morphology conducive for hair growth.

The present invention is related to an antifungal composition for inhibition of wood decay caused by wood rot fungi. The invention further comprises a method for inhibition of wood decay with gallates.

An electrochemical cell is disclosed in one embodiment of the invention as including an oxygen electrode and a solid oxide electrolyte coupled to the oxygen electrode to transport oxygen ions. A hydrogen electrode is coupled to the solid oxide electrolyte and contains nickel combined with a material tending to reduce the reactivity of the nickel with the solid oxide electrolyte. In selected embodiments, the solid oxide electrolyte is lanthanum gallate. Similarly, the material combined with the nickel may be an oxide such as magnesium oxide.

The present invention discloses process of separating black tea extract to prepare four kinds of high purity theaflavin and its derivatives in batch. By means of combining gel column chromatographic separation with great treating quantity and high speed countercurrent chromatographic separation with high separating efficiency, four kinds of theaflavin and its derivatives, including theaflavin (TF), theaflavin-3-gallate (TF-3-MG),theaflavin-3'-gallate (TF-3'-MG) and theaflavin-3, 3'-gallate (TFDG), in high purity are prepared. The process has great preparation amount, high product purity, short period, low solvent consumption and other features.

The present invention discloses gallate base cyclic carbonate, non-isocyanate polyurethane and a preparation method thereof. The method employs reaction of gallate base epoxy resin and CO2 in the presence of a catalyst to prepare the gallate base cyclic carbonate, which then reacts with an amine compound to prepare the non-isocyanate polyurethane. The preparation method of the gallate base cyclic carbonate has the advantages of simpleness, mild reaction conditions, and safe and nontoxic preparation process. The prepared polyurethane material does not use highly toxic isocyanate as raw material; the manufacturing process is safe and environment-friendly; and the gallate base cyclic carbonate and non-isocyanate polyurethane have the advantages of biodegradability and environment compatibility.

Preparations for the prevention and treatment of neurological disorders and cognitive deficits, i.e. Alzheimer's disease (AD), Parkinson's disease, amyotrophic lateral sclerosis, mild cognitive impairment and other types of dementia, comprising a therapeutically effective amount curcumin, piperine, epigallocatechin-3-gallate (EGCG), and one of N-acetylcysteine, benfotiamine, and alpha-lipoic acid or more. This association points to some or all of the pathways that can lead to nervous system deficits, degeneration and disease.

The invention discloses a method for nitrogenizing a photo-catalytic material containing gallium oxide at a low temperature. The method comprises the following steps: mixing an acetic acid solution with a sodium gallate solution which is a raw material, carrying out hydrothermal treatment of the obtained solution mixture at 180-220DEG C for 2-4h, centrifuging, and drying to obtain hydroxy gallium oxide nano-sheets; and dissolving nickel nitrate, sodium gallate and sodium nitrate powders in deionized water to obtain a mixed solution, carrying out hydrothermal treatment of the mixed solution at 180-220DEG C for 4-6h, catalyzing the nitrate radical nitrogenization by NiGa2O4, centrifuging, drying, and carrying out thermal treatment of the obtained powder sample in a muffle furnace at 300-500DEG C to obtain the nitrogen-doped meso-porous Ga2O3 photo-catalytic material. The material prepared in the invention can be applied as a photo-catalyst in a photo-catalytic reaction.

The invention discloses a bismuth gallate ferroelectric film material and a preparation method thereof. The film material grows on a substrate material, the molecular formula of bismuth gallate is BiGaO3, and a substrate is one of Si, LaNiO3 / Si, Pt / TiO2 / SiO2 / Si and Pt / Ti / SiO2 / Si; the space group of the film material is Pcca, and the lattice constants are as follows: a=5.626 angstrom, b=5.081 angstrom, and c=10.339 angstrom; the preferred orientation of the BiGaO3 film material growing on the selected substrate is (112). The preparation method comprises the following steps: weighing lanthanum nitrate and lanthanum acetate, wherein a molar ratio of bismuth to gallium is 1.1:1, and fully stirring by taking acetic acid at a solvent at the temperature of 60 DEG C to obtain a colorless clear solution; placing the obtained solution on the substrate, spinning to form a film, annealing in a rapid annealing furnace, and repeating the process for multiple times to obtain a bismuth gallate ferroelectric film material with a required thickness. The material has a wide application prospect in the fields of photovoltaic solar cells, information storage and the like.

A method and composition for preventing and treating Avian Influenza utilizes an effective quantity of polyphenolic(s) and its derivatives in combination with a carrier. The anti-avian influenza ingredient having a composition selected from the group consisting of theaflavin, theaflavin-3,3′-digallate, theaflavin-3-monogallate, theaflavin-3 gallate, theaflavin-3′-gallate, thearubigin, gallic acid, tannic acid, (−)-epigallocatechin gallate (EGCG), (−)epigalloatechin (EGC), (+)-epicatechin (EC), (−)-gallocatechin gallate (GCG), and catechin.

Provided is a cathode active material including lithium transition metal oxide particles and composite particles, wherein the composite particles include any one selected from the group consisting of yttria stabilized zirconia (YSZ), gadolinia-doped ceria (GDC), lanthanum strontium gallate magnesite (LSGM), lanthanum strontium manganite (LSM), and nickel (Ni)—YSZ, or a mixture of two or more thereof, and the cathode active material includes the composite particles having a single-phase peak when analyzed by X-ray diffraction (XRD).A cathode active material according to an embodiment of the present invention may not only minimize the reduction in capacity or output of a secondary battery, but may also further improve life characteristics.

Provided is a power generation cell for a solid electrolyte fuel cell, in which a lanthanum gallate-based electrolyte is used as a solid electrolyte. Use of alternative energy for replacing petroleum can be promoted and it is possible to use waste heat using the solid electrolyte fuel cell, thus the solid electrolyte fuel cell is watched in views of resource nursing and the environment. The power generation cell is typically operated at 800 to 1000° C. However, currently, the power generation cell, which is operated at 600 to 800° C. by using the lanthanum gallate-based electrolyte, is suggested. Since a current power generation cell has a large size and has an insufficient output, there are demands for size reduction and high output. In the power generation cell, Sm-doped ceria particles are separately attached to a surface of porous nickel having a network frame structure. The demands are satisfied by using the anode.

The invention provides a composition for topical treatment of hair loss / alopecia including three natural, active ingredients, caffeine, saw palmetto berry extract, and epigallocatechin-3-gallate (EGCG). The invention also provides methods for using this composition to treat hair loss.

The invention discloses a preparation method of theaflavin monomers and solves the problem that theaflavin-3-epicatechol gallate and theaflavin-3'- epicatechol gallate can not be separated in the prior art. The technical proposal of the invention is as follows: theaflavin extract solution first slowly flows through a chromatographic column filled with polyamide materials; the chromatographic column is then eluted with eluting solvent so as to collect four eluents which respectively contain theaflavin, theaflavin-3- epicatechol gallate, theaflavin-3'-epicatechol gallate and theaflavin diagallate monomers, and the eluent is a mixed solvent consisting of ester or ketone, alcohol and organic acid. The four eluents are respectively treated with concentration and four concentrated solutions obtained then are extracted for four extract liquors with organic solvent after the pH value of the solutions is regulated to the neutral and the four extract liquors are then dried to obtain four theaflavin monomers. The invention can separate out four theaflavin monomers at the same time, which significantly improves the utilization rate of the theaflavin extract.