6 results about "Stilbene glucoside" patented technology

The invention provides a high-stability black wolfberry fruit lipid-regulating oral liquid and a preparation method thereof, and relates to the technical field of medicines. The semen cassiae and fructus lycii lipid-regulating oral liquid is prepared from semen cassiae ethanol extract, mixed water extract, aromatic water, a flavoring agent, a bacteriostatic agent, a pH regulator and a solubilizer. By optimizing the preparation process, the provided black wolfberry fruit lipid-regulating oral liquid is under the action of the specific flavoring agent, the bacteriostatic agent, the pH regulator and the solubilizer, the solubilizer is polyethylene glycol 400 or a mixture of polyethylene glycol 400 and polyethylene glycol 600, the content degradation speed of stilbene glucoside is obviously slowed down, the validity period of the product is prolonged from 18 months to 24 months, and the stability of the product is improved.

The invention discloses a method for detecting the content of stilbene glucoside in Changchun longevity promoting paste, and belongs to the technical field of content detection of traditional Chinese medicine preparations. The method comprises the following steps: taking 2, 3, 5, 4 '-tetrahydroxystilbene-2-O-beta-D-glucoside as a reference substance, and adding methanol to prepare a reference substance solution; taking the Changchun longevity promoting paste as a test article, adding methanol for weighing, heating and refluxing, cooling, adding methanol for weighing again, shaking uniformly and filtering, and taking the subsequent filtrate to prepare a test article solution; injecting the reference substance solutions with different concentrations into a high performance liquid chromatograph to obtain a reference substance chromatogram, drawing a standard curve, and calculating a regression equation; and injecting the test solution into a high performance liquid chromatograph to obtain a test chromatogram, and obtaining the content of stilbene glucoside according to the peak area and the standard curve. The method has good precision and reproducibility, the content of stilbene glucoside in the Changchun longevity promoting paste can be accurately detected, and the production quality and the product curative effect of the Changchun longevity promoting paste can be effectively controlled.

The invention belongs to the technical field of medicine detection, and particularly relates to a method for detecting the content of effective components in seven-ingredient gastrodia elata medicinal liquor, the seven-ingredient gastrodia elata medicinal liquor is prepared from gastrodia elata, codonopsis pilosula, kadsura longepedunculata, poria cocos, fructus lycii, pericarpium citri reticulatae and radix polygoni multiflori preparata, has the effects of tonifying the kidney and soothing the nerves, and is used for neurasthenia, insomnia and dreaminess and the like. The method for detecting the content of the effective components of the seven-ingredient rhizoma gastrodiae medicinal liquor comprises the step of determining the content of gastrodin in a rhizoma gastrodiae medicinal material, the content of stilbene glucoside in a radix polygoni multiflori preparata medicinal material and the content of deoxyschizandrin in a kadsura longepedunculata medicinal material by adopting a high performance liquid chromatography. According to the method, a quantitative analysis method of three main active components is established through high performance liquid chromatography, a quality control system of the seven-ingredient gastrodia elata medicinal liquor is perfected, the adopted detection method is scientific and reasonable, high in specificity, high in accuracy and good in reproducibility, the quality of the seven-ingredient gastrodia elata medicinal liquor can be comprehensively and effectively controlled, and the curative effect and safety of the product are ensured.

The invention provides chelate resin, a preparation method of the chelate resin and application of the chelate resin to purification of regenerated gas of a polycrystalline silicon adsorption tower. The preparation method comprises the following steps: preparation of crosslinked polystyrene microspheres, chloromethylation of polystyrene-divinyl benzene microspheres and grafting of activated stilbene glucoside. The chelating resin and the molecular sieve are matched for use, so that impurities such as B, P and methane in regenerated hydrogen of an adsorption tower in a polycrystalline silicon production technology can be efficiently removed, the accumulation amount of boron, phosphorus and carbon impurities in a large polycrystalline silicon production system along with time change is reduced, and the quality of polycrystalline silicon can be greatly improved.

The application discloses a bacteriostatic, itching-relieving and antioxidant traditional Chinese medicine composition taking a prepared radix polygoni multiflori extract as a main active ingredient, which is composed of the following ingredients in parts by weight: the prepared radix polygoni multiflori extract 15-35 parts, the cypress leaf extract 5-20 parts, the black sesame seed extract 3-12 parts and the ligustrum lucidum fruit extract 3-12 parts. The ultrasonic-assisted cellulase extraction is adopted to greatly improve the dissolution rate of stilbene glucoside in the prepared radix polygoni multiflori and the active ingredient content of the extract is high; the multi-flavor traditional Chinese medicine is compounded to realize the bacteriostasis (staphylococcus aureus and malassezia), itching relief and antioxidant effects in a synergistic manner, the bacteriostasis circle diameter is greater than or equal to 15 mm, and the DPPH free radical scavenging rate is greater than or equal to 75%; the natural traditional Chinese medicine ingredient is mild and non-irritating, is suitable for a scalp care scene, and can be widely used in hair washing and hair care daily chemical products.

This invention discloses a glycosyltransferase PmUGT7 and its application in the biosynthesis of stilbene glycosides. The glycosyltransferase PmUGT7 can efficiently and specifically glycosylate the C2 hydroxyl group of 2,3,5,4'-tetrahydroxystilbene, producing stilbene glycosides in a one-step process. The reaction conditions are mild, the operation is convenient and rapid, the catalytic efficiency is high, and it has strong sustainability.