79 results about "Sinapic acid" patented technology

Described is an isolated lignified plant cell wall including lignin, wherein the lignin includes a ferulate residue incorporated therein, such as from coniferyl ferulate and / or sinapyl ferulate. Also described is a method to make the isolated lignified plant cell wall, and the lignin produced by the method.

The invention relates to nucleic acids encoding a feruloyl-CoA:monolignol transferase and the feruloyl-CoA:monolignol transferase enzyme that enables incorporation of monolignol ferulates, for example, including p-coumaryl ferulate, coniferyl ferulate, and sinapyl ferulate, into the lignin of plants.

Disclosed in certain embodiments is a canola extract comprising greater than 30% sinapic acid, pharmaceutical compositions thereof, and methods thereof

The invention relates to isolated nucleic acids encoding a feruloyl-CoA:monolignol transferase and feruloyl-CoA:monolignol transferase enzymes. The isolated nucleic acids and / or the enzymes enable incorporation of monolignol ferulates into the lignin of plants, where such monolignol ferulates include, for example, p-coumaryl ferulate, coniferyl ferulate, and / or sinapyl ferulate. The invention also includes methods and plants that include nucleic acids encoding a feruloyl-CoA:monolignol transferase enzyme and / or feruloyl-CoA:monolignol transferase enzymes.

The invention belongs to the field of fine chemicals, and particularly relates to a sinapic acid-polydopamine composite broad-spectrum light screening agent as well as a preparation method and application thereof. In a system of vitamin C and hydrogen peroxide, sinapic acid is grafted to a chitosan polymer chain through a free radical-initiated grafting method, and the plant sun-screening agent chitosan sinalate with excellent light stability is obtained through dialysis and freeze drying. Chitosan sinalate is dissolved in a trihydroxymethyl aminomethane-hydrochloric acid buffer solution (pH=8.5), a certain amount of dopamine hydrochloride is added, a plant sun-screening agent and melanoids are organically combined through Michael addition of polydopamine and chitosan, and the sinapic acid-polydopamine composite broad-spectrum light screening agent is obtained. The screening agent has excellent light stability, broad-spectrum light shielding property and skin adhesion, has higher UVB and UVA protection capability compared with commercially available organic sunscreen agents, and has application prospects in sunscreen cream.

The invention provides a highly-efficient synthetic method for 2, 6-dimethoxy-4-vinylphenol. The method comprises the following steps: with sinapic acid as a raw material and alumina as a solid-phase carrier, carrying out thermal decarboxylation in the presence of an alkaline catalyst under a microwave-assisted condition, adding a polymerization inhibitor to reduce and prevent polymerization of synthetic products, neutralizing the alkaline catalyst in the reaction system when the reaction is completed, extracting the synthetic products with an organic solvent, carrying out washing and drying, then carrying out purifying by using preparative liquid chromatography, and carrying out vacuum drying to obtain high-purity 2, 6-dimethoxy-4-vinylphenol. The highly-efficient synthetic method for 2, 6-dimethoxy-4-vinylphenol provided by the invention has the characteristics of significant improvement of reaction rate, fast temperature rise, convenient operation, high conversion rate, easy purification of the products, etc.; and the synthesized 2, 6-dimethoxy-4-vinylphenol has the properties of high purity, strong oxidation resistance, etc.

A differentiation inducer to brown-like adipocytes of white adipocytes containing a novel compound having an excellent differentiation induction action to brown-like adipocytes of white adipocytes as compared with resveratrol. A differentiation inducer to brown-like adipocytes of white adipocytes which is a reaction product of hydroxystilbenes and sinapic acid and contains a compound represented by Formula (1) or a pharmacologically permissible salt thereof:in which, in Formula (1),R1 to R4 represents a hydrogen atom, a hydroxy group, a saturated or unsaturated, linear or branched alkoxy group having 1 to 10 carbon atoms, or a saturated or unsaturated, linear or branched alkyl group having 1 to 10 carbon atoms and R1 to R4 each may be the same or different.

The invention discloses a finishing method for an ultraviolet-resistant water-proof anti-bacterial fabric. The finishing method comprises the steps that (1), ferulic acid, sinapic acid and p-coumaricacid are mixed in a certain proportion to prepare an ultraviolet-resistant water-proof anti-bacterial finishing solution; (2), the fabric is immersed into the ultraviolet-resistant water-proof anti-bacterial finishing solution, and after two dipping and two padding, negative-pressure flash explosion and drying are conducted in sequence; (3), the dried fabric is immersed into an ozone saturated laccase solution for catalytic crosslinking, and drying is conducted again; (4), the fabric obtained after being dried again is immersed into a methyl alcohol solution containing lipase, a methyl esterification reaction is carried out, and drying is conducted. The finishing method is suitable for various fabrics, the finished fabric has significant ultraviolet-resistant, water-proof and anti-bacterial effects, the finished fabric can be used as a medical material, a textile and garment material, an anti-bacterial material and the like to be widely used in the fields of textile industry, medicineand health care, biomedicine and the like.

The invention discloses a method for detecting platelet factor-4 without depending on antibody, which belongs to the technical field of biology. The method comprises the following steps: split-charging magnetic beads labeled with -NH2 or -COOH functional groups into a PCR tube, and then placing the PCR tube on a magnetic processor and removing liquid in the tube; taking the PCR tube out, then adding buffer solution into the PCR tube, and mixing the mixture evenly; placing the PCR tube on the magnetic processor and removing the buffer solution in the tube; taking the PCR tube out, adding serum or blood plasma sample into the PCR tube, and mixing the mixture evenly and then standing the mixture; placing the PCR tube on the magnetic processor and removing the liquid in the tube; taking the PCR tube out, adding the buffer solution into the PCR tube, and mixing the mixture evenly; placing the PCR tube on the magnetic processor and removing the buffer solution in the PCR tube; taking the PCR tube out, adding eluent into the PCR tube, and mixing the mixture evenly and then standing the mixture; placing the PCR tube on the magnetic processor and removing the liquid in the tube; and mixing the sucked liquid and saturated sinapic acid solution evenly, sucking the mixed solution to a target of matrix-assisted laser resolution ionization mass spectrometry, and putting the target into a mass spectrometer to detect the target after the solution on the target is crystallized. The method has the advantages of low price and reliable detection result.