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296 results about "Quercetin" patented technology

Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, and grains; red onions and kale are common foods containing appreciable content of quercetin. Quercetin has a bitter flavor and is used as an ingredient in dietary supplements, beverages, and foods.

Preparation of dual cross-linked ZEIN-carboxymethyl chitosan nanoparticles for improving thermal stability of polyphenol

Disclosed is preparation of dual cross-linked zein-carboxymethyl chitosan nanoparticles for improving the thermal stability of polyphenol. After covalently cross-linked zein, tannic acid is used to prepare tannic acid cross-linked zein-carboxymethyl chitosan nanoparticles loaded with quercetin, Ca2+ is then added to increase a degree of crosslinking between the tannic acid and the carboxymethyl chitosan, as well as between molecules of the carboxymethyl chitosan in the zein nanoparticles to make the structure tighter, such that structural stability of the nanoparticles can be maintained during the thermal processing after the nanoparticles are formed, the quercetin encapsulated inside is protected well, and a retention rate of quercetin during the thermal processing is improved. The method provided in the present disclosure is simple, green, pollution-free and low energy consumption, and the prepared nanoparticles can improve the thermal stability of quercetin, and can be used as a natural additive for thermal processing of food.
Owner:JIANGNAN UNIV

Application of inhalable nanomaterial of targeted macrophages in preparation of medicine for treating sepsis myocarditis

The invention discloses a macrophage-targeting inhalable nano material, a preparation method thereof and application of the inhalable nano material in treatment of sepsis myocarditis, and belongs to the technical field of medicines. The nano-material is a nano-liposome, the nano-liposome comprises a mannose modified nano-liposome microsphere, and the mannose modified nano-liposome microsphere comprises a liposome skeleton shell layer, a drug and a targeting layer; the liposome skeleton shell layer comprises soybean lecithin and cholesterol; the medicine comprises quercetin and TPPU (Thermoplastic Polyurethane); and the targeting layer is formed by connecting mannose modified DSPE-PEG2000 to the outer surface of the liposome skeleton shell layer. The nano material can accurately target macrophages at a cardiac inflammation part, has a multi-target-point synergistic effect, is more convenient and faster in administration, remarkably improves the safety and comprehensively improves the treatment effect.
Owner:RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Preparation method for enhancing inhibitory activity of lonicera caerulea juice xanthine oxidase through fermentation of plant lactobacillus

According to the preparation method disclosed by the invention, the whole fruit juice of the lonicera caerulea (which retains fruit residues) is fermented by virtue of the plant lactobacillus KLDS1.0391, KLDS1.0320 or KLDS1.0368, so that the xanthine oxidase (XO) inhibition activity is remarkably improved. After fermentation, the XO inhibition rate is increased to 48-50.87% (the content of unfermented juice is 31.21%), the total phenol content is increased by 15-24.3%, and the contents of main XO inhibitors in the lonicera caerulea: cyanidin-3-O-glucoside (IC50 = 115.28 [mu] M), cyanidin-3, 5-diglucoside (IC50 = 116.34 [mu] M), peonidin-3-glucoside (IC50 = 105.34 [mu] M), quercetin (IC50 = 88.75 [mu] M), catechin (IC50 = 110 [mu] M) and caffeoylquinic acid (IC50 = 250.35 [mu] M) are remarkably increased. Wherein the quercetin content is increased by 73.8% at most (KLDS1.0320 strain fermentation is performed for 24 hours), and the XO inhibition rate is increased from 31.21% to 50.87%. Technical support is provided for development of a natural XO inhibitor and a functional fermented beverage, so that a new thought is provided for functional fermented juice with lonicera caerulea as a key component.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Antibacterial and acne-removing microemulsion containing plant extract and preparation method thereof

The application discloses a bacteriostatic and acne-removing microemulsion containing plant extracts and a preparation method thereof. The bacteriostatic and acne-removing microemulsion contains a microemulsion loaded with quercetin alone, a microemulsion loaded with sasanquasapernin alone, and a microemulsion loaded with quercetin and sasanquasapernin simultaneously. The bacteriostatic and acne-removing microemulsion containing plant extracts prepared by the application not only solves the problems of stickiness of camellia oil and poor solubility of quercetin, but also has a synergistic inhibitory effect on propionibacterium acnes, achieves the same high-efficiency bacteriostatic effect with a lower drug concentration, saves drug cost, reduces drug irritation, and expands the application of quercetin and sasanquasapernin in the cosmetic and pharmaceutical fields due to the rich pharmacological effect of the plant extracts, low side effect and safety. The microemulsion system prepared by the application is clear, transparent, uniform and stable, the preparation process is simple, the required energy is low, the cost is low, and the system is beneficial to commercial production.
Owner:SOUTH CHINA UNIV OF TECH

Composition for preventing and treating papaya spider mites

PendingCN121195961ABiocideAnimal repellantsPapaya familyTetranychus
The invention belongs to the technical field of agricultural compositions, and particularly relates to a composition for preventing and treating papaya spider mites. The active ingredients of the composition are hexythiazox and quercetin, the mass ratio of hexythiazox to quercetin is 1: (0.5-20), preferably 1: (7.5-12.5), and an indoor toxicity determination test shows that the composition has a remarkable synergistic effect on tetranychus urticae within the ratio range. The invention also provides a water emulsion, a suspending agent, missible oil and other pesticide preparations containing the composition. Field efficacy tests prove that the composition provided by the invention has a good control effect on tetranychus urticae on papaya, is long in lasting period, and can effectively slow down the development of pest drug resistance. The invention provides a novel scheme with high efficiency and low dosage for controlling the carica papaya spider mites.
Owner:GUANGZHOU FRUIT TREE RES INST

Preparation method of nitrogen and phosphorus doped carbon dots and application of nitrogen and phosphorus doped carbon dots in quercetin detection

The invention provides a preparation method of nitrogen and phosphorus-doped carbon dots and application of the nitrogen and phosphorus-doped carbon dots in quercetin detection, the nitrogen and phosphorus-doped fluorescent carbon dots (N, P-CDs) are successfully constructed for the first time by adopting a hydrothermal synthesis method, and the carbon dots have emission peaks at 465 nm under the excitation wavelength of 325 nm and show green fluorescence under the irradiation of an ultraviolet lamp; quinine sulfate is used as a standard reference substance, and the quantum yield is 1301%; an N, P-CDs solution is used as a probe molecule, after quercetin is added, fluorescence quenching of N, P-CDs is induced, and the concentration of quercetin and the fluorescence intensity of N, P-CDs are linearly changed, so that the method can be used for quantitative detection of quercetin. The N, P-CDs preparation method provided by the invention is simple and rapid, the product property is stable and non-toxic, the detection sensitivity on the quercetin is high, and the N, P-CDs can be used for detecting the content of the quercetin in serum.
Owner:NANTONG UNIV

Herbal exosome composition for eye care and treatment and preparation method thereof

The invention relates to the technical field of biological medicines and ophthalmic medicines, in particular to a herbal exosome composition for eye care and treatment and a preparation method thereof. The composition comprises a synergistic combination of herbal exosomes and mesenchymal stem cell exosomes, and further comprises a nano slow-release carrier system. Wherein the herbal exosome is extracted from a traditional herbal plant liquorice by combining gradient centrifugation with a molecular exclusion chromatography method, and herbal active ingredients, namely astragaloside and quercetin, are loaded in the exosome by adopting an electroporation method, so that the pharmacological activity of the exosome is enhanced. The nano slow-release carrier system is of a two-phase slow-release structure; an inner phase is a phospholipid complex loaded with herbal exosomes and mesenchymal stem cell exosomes, and an outer phase is temperature-sensitive hydrogel; the compound is in a liquid state at room temperature, and is rapidly converted into a gel state after being dropped into the ocular surface, so that the retention time of the medicine on the ocular surface is remarkably prolonged, the bioavailability is improved, and the targeting slow release capability aiming at ocular surface tissues is endowed to the compound.
Owner:ORUIJUN (GUANGZHOU) BIOTECHNOLOGY CO LTD

Aronia melanocarpa plant composite powder and preparation method thereof

The invention discloses aronia melanocarpa plant composite powder and a preparation method thereof. The aronia melanocarpa plant composite powder comprises the following raw materials in parts by weight: 40-50 parts of aronia melanocarpa powder, 15-20 parts of dihydroquercetin powder, 10-15 parts of black sesame powder, 2-5 parts of honeysuckle flower powder, 1-2 parts of dandelion powder, 0.5-2 parts of radix polygonati officinalis powder and 1-3 parts of mint powder. The problems that existing aronia melanocarpa powder is single in component and prone to functional limitation, the single aronia melanocarpa powder mainly provides anthocyanin antioxidant components and has the functions of resisting oxidation, protecting eyes and resisting inflammation, but the effect dimension is single, the health requirements of consumers for comprehensive conditioning are difficult to meet, and the single aronia melanocarpa powder is obvious in acerbity and poor in taste and has a certain health care effect are solved. The aronia melanocarpa plant composite powder compounded with functional plant components is urgently needed to solve the problem that the aronia melanocarpa plant composite powder is easy to cause taste fatigue after being drunk for a long time.
Owner:LIAONING DONGLIN BIOTECHNOLOGY CO LTD

Functional recombinant soybean protein isolate emulsion gel as well as preparation method and application thereof

PendingCN121176611AFood shapingLeguminQuercetin
The invention discloses functional recombinant soybean protein isolate emulsion gel as well as a preparation method and application thereof, and belongs to the technical field of soybean protein processing. The preparation method comprises the following steps: recombining three main components, namely soybean lipophilic protein, glycinin and beta-conglycinin, in soybean protein isolate (SPI) according to a certain compounding ratio, and carrying out combined modification on the recombined SPI by virtue of modification means such as ultrasonic treatment, heat treatment, magnetic field and enzyme crosslinking; the recombined SPI emulsion is subjected to micronization treatment by adopting high-pressure microjet homogenization treatment, and then the emulsion is jointly induced to be gelatinized by utilizing acid and salt ions and transglutaminase, so that the preparation efficiency, the structural strength and the stability of the emulsion gel are improved; two polyphenols, namely epigallocatechin gallate and quercetin, are co-embedded in an interface and an oil phase of the emulsion gel, so that the bioaccessibility and antioxidant activity of the polyphenols are improved, and the emulsion gel is endowed with functionality. The prepared emulsion gel can be widely applied to processing of functional food.
Owner:JILIN AGRICULTURAL UNIV

Method for converting rutin into quercetin through biological catalysis

PendingCN121320473AFermentationRutinQuercetin
The invention discloses a method for converting rutin into quercetin through biological catalysis, and belongs to the technical field of biological catalysis. The method comprises the following steps: mixing rutin and a solvent to obtain a quasi-solid rutin suspension; mixing the paraphlonia plant endogenous enzyme and the quasi-solid rutin suspension for enzymolysis, and then filtering, washing and drying to obtain quercetin; the solvent is methanol with the concentration of 5-50%, ethanol with the concentration of 5-50% or acetone with the concentration of 10-50%. The method is mild in biological catalytic reaction condition, does not generate pollutants such as acid waste liquid, and meets the environmental protection requirement. Efficient conversion of quercetin is realized by adopting a quasi-solid rutin strategy (rutin suspension reaction system), and the problem of substrate solubility limitation is solved. High-purity quercetin can be obtained through simple washing, the product purity is larger than 95%, and food and clinical application can be met.
Owner:GUILIN UNIV OF ELECTRONIC TECH +1

Composition for fading spots, whitening and tightening skin and preparation method thereof

ActiveCN121221487ACosmetic preparationsToilet preparationsCis-Retinoic AcidPinacolone
The invention discloses a spot-fading, whitening and skin-tightening composition and a preparation method thereof, and particularly belongs to the technical field of cosmetics. The composition is prepared from an extract of bark of the cissampelos maculata, hydroxyl pinacolone 9-cis-retinoate, sclareolide, tetrahydromagnolol and a quercetin dimer. The composition provided by the invention can significantly reduce the skin melanin content, improve the skin brightness and significantly improve the skin elasticity and compactness, all the components have a synergistic effect, the effects of spot fading, whitening and skin tightening are effectively achieved, the preparation process provided by the invention is stable and controllable, and the composition is suitable for large-scale production and has wide application prospects. A novel efficient skin care composition and an application scheme are provided for the field of cosmetics.
Owner:INERTIA SHANGHAI BIOTECHNOLOGY CO LTD +1

Method for improving characteristics of rapeseed protein-quercetin compound through cooperation of polysaccharide and gelation

The invention discloses a method for improving the characteristics of a rapeseed protein-quercetin compound through cooperation of polysaccharide and gelation, and belongs to the field of food additive technology development and food safety control. According to the method, a modified rapeseed protein-quercetin compound is used as a raw material, sodium carboxymethyl cellulose and chitosan are used for regulating and controlling the binding process of protein and quercetin, then nano-gelatinization is used for inducing recombination of compound molecules, and the charge polysaccharide nano-nano-gelatinized rapeseed protein-quercetin compound is obtained. The new technology disclosed by the invention not only can effectively reduce the co-dissolution pH value of the protein and the quercetin, but also can improve the functional characteristics of the quercetin solubilizing effect, the oxidation resistance, the emulsifying characteristic and the like of the compound. The method has the characteristics of simplicity in operation and easiness in amplification, and a new resource can be provided for application of the rapeseed protein-polyphenol compound in the field of emulsion food.
Owner:JIANGSU UNIV

Quercetin nanocrystal and preparation method and application of quercetin nanocrystal preparation

The invention relates to a quercetin nanocrystal and a preparation method and application of a quercetin nanocrystal preparation, and the preparation method of the quercetin nanocrystal comprises the following steps: step 1, mixing a quercetin absolute ethyl alcohol solution and a geniposide aqueous solution, and centrifuging to obtain a precipitate; and 2, washing the precipitate with distilled water, discarding the supernatant, adding the precipitate into water, dispersing to obtain a quercetin-geniposide suspension, and freeze-drying to obtain the quercetin nanocrystal. The geniposide is used as a carrier to prepare the quercetin nanocrystal, the geniposide is used for regulating and controlling the morphology and size of the quercetin nanocrystal to enable the quercetin nanocrystal to play a synergistic effect, and the effect of the quercetin on treating ulcerative colitis is greatly improved.
Owner:INNER MONGOLIA MEDICAL UNIV

Fruit juice fermentation inoculant, fermented guava fermented juice and preparation method of fruit juice fermentation inoculant and fermented guava fermented juice

The invention provides a fruit juice fermentation inoculant, fermented guava juice and a preparation method, and belongs to the technical field of fermented beverages. The invention provides a compound fermentation inoculant capable of fermenting fruit juice, the compound fermentation inoculant is composed of lactobacillus plantarum and lactobacillus fermentum, the fermentation inoculant is applied to fermentation of guava fruit juice, beta-glucosidase secreted in the fermentation process can hydrolyze combined polyphenol substances in guavas, and then the guava fruit juice is fermented. The antioxidant is converted into high-activity antioxidants such as quercetin and gallic acid in a free state, so that the content of free phenol is increased by about 2 times, and the scavenging rate of DPPH free radicals is increased by more than 40%. The fermentation is carried out in an oxygen-free environment, the retention rate of vitamin C can reach 80% or above, the low pH value at the fermentation end point and organic acid jointly inhibit pathogenic microorganisms, and the product stability is guaranteed. Therefore, the guava juice prepared from the compound fermentation inoculant maximally releases the natural nutritional potential of guavas.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY +1

Compound probiotic fermented fruit and vegetable juice beverage and preparation method thereof

PendingCN120732105AFood ingredient functionsBiotechnologyCarrot juice
The invention relates to the technical field of fermented fruit and vegetable juice, in particular to a compound probiotic fermented fruit and vegetable juice beverage and a preparation method thereof, and the compound probiotic fermented fruit and vegetable juice beverage comprises the following raw materials: apple juice, snow pear juice, carrot juice, a momordica grosvenori extracting solution, compound probiotics, zinc gluconate, citric acid, oat beta-glucan and nano diatomite loaded prebiotics. Nano diatomite is treated through acid pickling and 3-aminopropyltriethoxysilane, then a functional layer with gradient hydrophilic-hydrophobic balance is formed through molecular self-assembly of quercetin (hydrophobic area) and lecithin (hydrophilic head group), the structure is kept stable in fermentation liquor, the hydrophobic end of quercetin is embedded into a probiotic cell membrane phospholipid layer, the hydrophilic end of quercetin is exposed to a liquid phase, and the hydrophobic end of quercetin is embedded into a probiotic cell membrane phospholipid layer. The interface affinity is enhanced; and carboxylated galactooligosaccharide is further grafted, so that the feed has the directional nutritional characteristic of preferential utilization of probiotics.
Owner:JIANGZHONG DIET THERAPY TECH CO LTD

Complete feed suitable for sows in perinatal period and preparation method of complete feed

The invention discloses a complete feed suitable for sows in a perinatal period and a preparation method of the complete feed in the technical field of animal nutrition and feed science, and relates to a beta-glucan sulfated-chitosan conjugate and a nano-embedded quercetin-medium-chain fatty glyceride compound, and application of the beta-glucan sulfated-chitosan conjugate and the nano-embedded quercetin-medium-chain fatty glyceride compound in the complete feed. Wherein the beta-glucan sulfated-chitosan conjugate is formed by carrying out sulfated modification on beta-glucan through chlorosulfonic acid and then carrying out covalent coupling on the modified beta-glucan and chitosan under the conditions of a specific condensing agent and pH (Potential of Hydrogen). The complete feed contains the energy raw material, the protein raw material, the functional additive and the two modified compounds, and is prepared through the processes of step-by-step crushing, mixing and granulation, the complete cycle regulation of relieving constipation, promoting ingestion, reducing oxidative damage and improving lactation performance is finally achieved, and the breeding efficiency of sows and the health level of piglets are remarkably improved.
Owner:湖南共农生物科技有限公司

Compound based on aspergillus oryzae spores and preparation method and application thereof

The invention provides a compound based on aspergillus oryzae spores. The compound is composed of carbonized aspergillus oryzae spore microsphere surfaces and pores loaded with quercetin. The average porosity of the carbonized aspergillus oryzae spore microspheres is 25%-45%; the mass of the quercetin accounts for 30%-50% of the total mass of the compound. According to the compound, the solubility and bioavailability of quercetin are remarkably improved, efficient pulmonary alveolar deposition is guaranteed through the optimized aerodynamic diameter of the compound, and rapid intake of macrophages is guaranteed through the rough surface of the compound. An in-vivo and in-vitro ALI model verifies the safety of the compound QU-cASP prepared by the invention, and the compound QU-cASP has excellent effects in the aspects of targeted delivery, oxidative stress inhibition and macrophage polarization regulation. The invention also provides a method for preparing the compound, an application of the compound in preparation of a medicine for relieving acute lung injury, and an inhalable preparation taking the compound as an active ingredient.
Owner:ZHEJIANG PROVINCIAL PEOPLES HOSPITAL

Composition for synergistically regulating intestinal flora and application thereof

The invention discloses a composition for synergistically regulating intestinal flora and application thereof. The composition comprises the following components in parts by weight: 10-80 parts of a cordyceps militaris extract, 2-40 parts of quercetin, 5-50 parts of prebiotics and 5-80 parts of nucleotide. The compositions provided by the invention supplement each other, have a synergistic effect, are compounded according to a scientific proportion, can improve the diversity of intestinal microorganisms of mice and the abundance of species, and can significantly improve intestinal inflammation symptoms in a mouse colitis model.
Owner:NANJING SHENG MING YUAN HEALTHY TECHNOLOGY CO LTD

Chinese herbal medicine toothpaste formula and preparation method thereof

The invention relates to the technical field of toothpaste preparation, and particularly discloses a Chinese herbal medicine toothpaste formula and a preparation method thereof, the Chinese herbal medicine toothpaste formula comprises the following raw materials by weight: 17-18 parts of a functional component, 2.4-2.8 parts of a slow release synergist, 20-22 parts of a friction agent, 28-32 parts of a humectant, 2.6-3.4 parts of a surfactant, 0.16-0.18 part of a preservative, 1.8-2 parts of a thickener, 1.4-1.6 parts of essence, 5.8-6.2 parts of a flavoring agent and 16-18 parts of deionized water; taxillus sutchuenensis, herba cepbalanoplosis segeti, plantain herb, herba pyrolae and fructus forsythiae are used as core materials of functional components, gelatin and modified sodium alginate are used as wall materials, the functional components are prepared, and a slow-release synergist containing anthocyanin, bromelain and rhamnolipid is added, so that the effects of removing stains and whitening skin are achieved; moreover, release of quercetin, quercitrin and other components in the traditional Chinese medicine extract is promoted, and the anti-inflammatory, bleeding-stopping, halitosis-removing, stain-removing and whitening effects of the toothpaste are improved.
Owner:GUANGZHOU ELEGANT DAILY CHEM CO LTD

Pine bark polyphenol extract as well as preparation method and application thereof

The invention relates to the technical field of biology, in particular to a pine bark polyphenol extract as well as a preparation method and application thereof. According to the present invention, the pine tree bark polyphenol extract is obtained through extraction with an ethanol solution, and the pine tree bark polyphenol extract mainly comprises 2-Hydroxy-4-hydroxybenzoic acid, Pinosylvin, Hispidulin, 3, 5-Dimethoxyphenol, 2, 3, 5, 4 '-Tetrahydroxystilbene, 2-O-beta-D-glucose, Quercetin-3-O-glucose, 6-O-Caffeoyl-D-glucose, Galvantinol, MeIAA and Rhapontigenin, and the pine tree bark polyphenol extract can be used for preparing the pine tree bark polyphenol extract, and can be used for preparing the pine tree bark polyphenol extract, the pine tree bark polyphenol extract, the pine tree bark polyphenol extract, the pine tree bark polyphenol extract, the pine tree bark polyphenol extract, the pine tree bark polyphenol extract and the preparation method thereof, the pine bark polyphenol extract can be used for effectively relieving LPS (lipopolysaccharide)-induced intestinal barrier injury of weaned piglets by regulating intestinal flora (improving Pediococcus abundance and reducing Alloprevotella abundance) and a tryptophan-AhR pathway under the condition that the addition amount of the pine bark polyphenol extract is lower than 0.05 wt%.
Owner:BEIJING UNIV OF AGRI

A food-grade o / w quercetin microemulsion, a preparation method and application thereof

The application discloses a food-grade O / W quercetin microemulsion and a preparation method and application thereof, and each component and weight percentage are as follows: 10%-42% of a surfactant, 2%-32% of an oil phase solution, and the balance of water; wherein the oil phase solution is composed of isopropyl myristate and ethanol, and the weight ratio of isopropyl myristate to ethanol is 1:1-4. The O / W microemulsion preparation method is simple, is a good carrier of active substances or functional substances represented by quercetin which has poor stability and water solubility, so that the stability of the active substances or functional substances in pharmaceutical preparations is improved, and the sustained release behavior is improved.
Owner:YANCHENG INST OF TECH

Application of golden larch bark acetic acid in preparation of MRSA biological membrane and bacterium-retaining inhibitor

The invention relates to application of golden larch bark acetic acid in preparation of methicillin-resistant staphylococcus aureus (MRSA) biological membrane and bacterium holding inhibitor. A biological membrane formation inhibition experiment shows that the pseudolaric acid can remarkably inhibit formation of an MRSA biological membrane, a fluorescent quantitative PCR experiment shows that the pseudolaric acid remarkably reduces transcription of related genes of the MRSA biological membrane, and a persistent bacterium killing experiment shows that the pseudolaric acid enhances the killing capability of gentamicin on MRSA persistent bacteria. Lung epithelial cell adhesion tests find that the golden larch bark acetic acid significantly reduces the adhesion effect of the MRSA strain on epithelial cells. A test for constructing an MRSA infected greater wax moth model shows that the golden larch bark acetic acid has a system protection effect on the MRSA infected greater wax moth model.
Owner:JILIN TEACHERS INST OF ENG & TECH

A composition having an insulin resistance reversing component and a method of making the same

The present application relates to the technical field of reversing insulin resistance, and particularly relates to a composition with components for reversing insulin resistance and a preparation method thereof, the composition comprising quercetin, procyanidin, malic acid, magnesium carbonate, zinc lactate and grains, and through synergistic effects of the components, the composition can reduce fasting blood glucose, fasting insulin and insulin resistance index, and improve insulin sensitivity index, and overcomes the problems in the prior art that the components of the traditional Chinese medicine composition are complex, the effective components for reversing insulin resistance and the synergistic mechanism are not clear, and the content of the effective components in the same medicine is not consistent due to the influence of the growth environment, resulting in unpredictable treatment effect.
Owner:BEIJING DOCTOR LU BEHAVIORAL MEDICINE SCI & TECH RES INST CO LTD

A composition for lightening and whitening spots and firming skin and a preparation method thereof

ActiveCN121221487BCosmetic preparationsToilet preparationsCis-Retinoic AcidMelanin
This invention discloses a composition for fading dark spots, whitening, and firming the skin, and its preparation method, specifically belonging to the field of cosmetic technology. The composition contains extracts of *Bretschneidera sinensis* bark, hydroxypinazone 9-cis-retinate, sage lactone, tetrahydromagnoliol, and quercetin dimer. The composition provided by this invention can significantly reduce skin melanin content, improve skin brightness, and significantly improve skin elasticity and firmness. The synergistic effect of the components effectively achieves the effects of fading dark spots, whitening, and firming the skin. The preparation process provided by this invention is stable and controllable, suitable for large-scale production, and provides a novel and highly effective skincare composition and application solution for the cosmetic field.
Owner:INERTIA SHANGHAI BIOTECHNOLOGY CO LTD +1

An anti-allergic composition containing inactivated AKK and use thereof

PendingCN122271544AVitamin CSide effect
This invention belongs to the field of anti-allergy functional food technology, specifically relating to an anti-allergy composition containing inactivated Akkermansia myxophilus. Existing anti-allergy drugs have side effects. The composition of this invention contains inactivated Akkermansia myxophilus, quercetin, vitamin C, and zinc. This invention can improve allergic rhinitis, alleviate eczema symptoms, and improve allergic constitution by regulating immune balance and inhibiting histamine release. The composition of this invention is stable at room temperature and can be formulated into powder or chewable tablets.
Owner:HAINAN XUNLONG INTERNET TECHNOLOGY CO LTD

Application of coriaria lactone or medicinal derivative thereof in preparation of AD (Alzheimer's disease) treatment medicine

ActiveCN121221591AOrganic active ingredientsNervous disorderSynaptic cleftEpoxy
The invention relates to the technical field of medical biology, in particular to application of coriaria lactone or a medicinal derivative thereof in preparation of AD (Alzheimer's disease) treatment drugs. The coriaria lactone shows unique structural activity and treatment specificity, the epoxyhexane ring structure of the coriaria lactone is a key active group and is enriched in an A beta sedimentary area through synaptic gaps, the ion disturbance range is limited in a lesion microenvironment (the radius is lt and 50 microns), and wide tissue damage caused by physical electrical stimulation is avoided. The micromolecule characteristic (LogP = 1.8) of the coriaria lactone endows the coriaria lactone with the ability of spontaneously penetrating the blood brain barrier, the onset time is shortened to the hour level from several months, and meanwhile, the risk of encephaledema is avoided. Therefore, the compound can be used for preparing the medicine for treating the Alzheimer's disease, meanwhile, a proper dosage is screened, and a foundation is laid for research on preparation of the medicine for treating the AD.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

A method for preparing an anti-tumor composition for pets

PendingCN122376657AYolkGreen Tea Polyphenols
This application belongs to the field of biomedicine, specifically relating to a method for preparing an antitumor composition for pets, aiming to solve the technical problems of low bioavailability, poor stability, and poor drug administration compliance of poorly soluble active ingredients in antitumor drugs for pets. The method includes: a raw material pretreatment step, in which curcumin, resveratrol, quercetin, green tea polyphenols, and astragalus polysaccharides are pulverized and sieved separately; an organic phase preparation step, in which egg yolk lecithin and solid lipids are dissolved in an ethanol-acetone mixed solvent, and curcumin and resveratrol are added and dissolved by stirring in a water bath; an aqueous phase preparation step, in which poloxamer F68 is dissolved in purified water and dissolved in a water bath; a high-pressure homogenization step, in which a nanoemulsion containing a solid lipid core is prepared; a moderately polar component encapsulation step, in which quercetin and green tea polyphenols are ultrasonically dispersed and then added dropwise to the nanoemulsion; a freeze-drying step, in which a nano-lyophilized powder is obtained; and an outer hydrophilic component coating step, in which astragalus polysaccharides are sprayed or adsorbed onto the surface of the freeze-dried powder. The composition obtained by this method is a core-shell multilayer nanoparticle with a core consisting of curcumin and resveratrol encapsulated by solid lipids, a middle shell adsorbing quercetin and green tea polyphenols, and an outer shell coated with astragalus polysaccharides. This application utilizes the above-mentioned layered encapsulation technology to achieve stable co-encapsulation of multiple antitumor active ingredients, improve the bioavailability of poorly soluble components, optimize drug stability, and enhance antitumor effects through multi-target synergistic effects. Simultaneously, it endows the composition with immunomodulatory functions and sustained-release properties. The composition can be formulated into a nano-lyophilized powder form, making it easy to add to pet food or formulate into a paste for administration, improving pet drug compliance. Figure 2 is a schematic diagram of the three-layer core-shell nanoparticle structure of the composition of this invention.

Collagen supplement

A collagen-boosting supplement that contains at least 4, optionally at least 10, collagen building block amino acids and is substantially free of histidine. The building block amino acids may be selected from: Glycine, L-Proline, L-Hydroxyproline, L-Glutamic Acid, L-Alanine, L-Arginine, L-Aspartic Acid, L-Serine, L-Leucine, L-Lysine, L-Hydroxylysine, L-Valine, L-Phenylalanine, L-Threonine, L-Isoleucine, L-Methionine, and L-Tyrosine. The supplement may further comprise: vitamin C; one or more mast cell stabilisers which may be selected from: quercetin, molybdenum, bromelain, DAO (diamine oxidase), Urtica Dioica (stinging nettle), Nigella Sativa (black cumin), Zingiber (ginger), Scutellaria baicalensis (Chinese skullcap), Sambucus (Elderberry), Aloe Vera, Syzygium aromaticum (clove), and matcha; one or more collagen-strengthening herbs which may be selected from: Bilberry, Centella, and Astragulus; one or more Glucosaminoglycans (GAGs) which may be selected from: Hyaluronic acid, glucosamine, and chondroitin; one or more antioxidants which may be selected from: astaxanthin and resveratrol; and / or one or more cofactors which may be selected from: zinc, biotin, silicon, manganese, magnesium, Vitamin D, Vitamin A, Vitamin E, and iron. The supplement may be a foodstuff, medicament, nutraceutical, or cosmetic. The supplement may be used to treat hypermobile Ehlers-Danlos syndrome (hEDS) while reducing the likelihood of mast cell degranulation through histamine activation.
Owner:BURTON-TEED BLYTHE COULBOURNE