380 results about "Vitamin E" patented technology

The invention provides linseed oil rich in vitamin E and capable of enhancing linolenic acid activity and a preparation method of the linseed oil, and belongs to the technical field of edible oil processing. The preparation method of the flaxseed oil comprises the following steps: mechanically polishing and degumming flaxseeds, and then carrying out microwave thermal refining and low-temperature squeezing to obtain virgin flaxseed oil and a squeezed cake; adsorbing and deacidifying the primary oil through modified diatomite to obtain refined oil; carrying out ethanol solution ultrasonic extraction and supercritical CO2 extraction on the pressed cake to obtain a high-purity vitamin E extract; and finally, mixing the extract with the refined linseed oil to obtain the linseed oil. Through the whole-process low-temperature, physical adsorption and efficient extraction and purification process, the retention rate and enrichment degree of vitamin E are remarkably improved, meanwhile, nutritional ingredients such as alpha-linolenic acid are effectively protected, use of synthetic antioxidants is avoided, and the product has the advantages of being high in oxidation stability, good in safety, excellent in sensory quality and the like and is suitable for industrial production. The edible oil is suitable for being used as a nutritional supplement, edible oil or food additive.

The invention relates to a composition with functions of protecting gingiva and repairing enamel and a preparation method of the composition, and belongs to the technical field of oral care. The composition contains a functional additive, a plant compound fermentation extract and the like, the functional additive is a mixture of corn starch, calcium phosphosilicate, hydroxyapatite, ubiquinone, sodium guaiazulene sulfonate, menthol and vitamin E, and the plant compound fermentation extract is obtained by fermenting and purifying honeysuckle flowers, radix polygonati officinalis and dandelions according to a specific proportion. Through the synergistic effect of the fermentation extract and the functional components, the problems that an existing toothpaste body is hardened, the storage stability is poor, the gingival protecting effect is short, and the enamel repairing persistence is insufficient are solved, the gingival protecting effect can be enhanced, the enamel repairing effect can be improved, the stability of the toothpaste body can be optimized, the antibacterial property and the oral mucosa relieving effect are achieved, and the oral cavity repairing effect is achieved. And the preparation process is scientific and reasonable, and is suitable for daily oral care.

The invention relates to the field of pharmaceutical preparations, and particularly discloses an amorphous-state tigorazan tablet and a preparation method thereof. The amorphous-state tigorazan tablet comprises a tablet and a coating material in a weight ratio of 100: (2-4), the tablet comprises the following raw materials: amorphous-state tigorazan, a carrier inclusion material, an excipient, a disintegrating agent, a lubricant and a flow aid, the dosage of the amorphous-state tigorazan is 20-30% of the total mass of all the raw materials of the tablet, and the dosage of the carrier inclusion material is 20-30% of the total mass of all the raw materials of the tablet. The weight ratio of the amorphous tigoran to the carrier inclusion material is 1: (0.80-1.15), and the carrier inclusion material is vitamin E polyethylene glycol succinate. The amorphous tigorazan tablet provided by the invention not only has higher solubility and dissolution rate, but also has higher stability and better hardness and friability, not only improves the bioavailability of drugs, but also avoids the use of organic solvents, simplifies the production process, reduces the risks of production safety and environmental protection, and is suitable for large-scale industrial production.

The invention discloses an astragaloside synergistic type composition as well as a preparation method and application of the astragaloside synergistic type composition. Comprising the following components: 8 to 16 parts of astragaloside, 20 to 40 parts of a honeysuckle flower extract, 10 to 20 parts of L-carnitine, 0.1 to 0.5 part of selenium yeast, 3 to 8 parts of diammonium glycyrrhizinate, 5 to 15 parts of taurine, 8 to 20 parts of a fructus forsythiae extract, 2 to 7 parts of vitamin E, 12 to 32 parts of hydroxypropyl-beta-cyclodextrin, 2 to 10.5 parts of maltodextrin, 1 to 7 parts of Arabic gum, 10 to 20 parts of lactose, 1 to 3 parts of zinc gluconate and 2 to 5 parts of magnesium stearate. 1-3 parts of vitamin C, 1-5 parts of xanthan gum and 1-3 parts of lecithin. The composition has a wide application prospect in preparation of veterinary drugs or veterinary food additives.

A topical neurocosmetic composition comprising a first component including one or more of bakuchiol, allantoin, squalane, or Morinda citrifolia extract; a second component including one or more of hyaluronic acid, vitamin E, Zanthoxylum alatum fruit extract, Coriandrum sativum seed oil, Vitex agnus-castus extract, Helianthus annuus sprout extract, niacinamide, resveratrol, or an ascorbyl ester; and a cosmetically acceptable oil-in-water vehicle configured to deliver both lipophilic and hydrophilic actives through the skin to dermal neurons. The composition improves measurable skin parameters such as hydration and elasticity and supports psychophysiological comfort. Methods of manufacture and use are also described

This invention discloses a novel structural polysaccharide SYQE3-F derived from the roots of *Tripterygium wilfordii*, its preparation method, pharmaceutical composition, and applications, belonging to the field of biomedical technology. This invention is the first to isolate and purify a homogeneous polysaccharide SYQE3-F from the roots of *Tripterygium wilfordii*, with an average molecular weight of 13.174 kDa. Its main chain consists of →4)-β-D-GlcpA-(1→) and →2)-α-D-Manp-(1→), and its side chains include t-Galp and t-Araf. This invention also discloses a pharmaceutical composition containing this polysaccharide and vitamin E. In vitro and in vivo experiments show that this polysaccharide can effectively break down choroidal occlusion barriers and significantly promote the transport of vitamin E to the target retinal tissue, providing a novel natural drug combination for the clinical treatment of DR.

The application relates to the field of biological products, in particular to application and application method of glutathione in medical devices or cosmetics, and a medical device / cosmetic containing glutathione, and provides application of glutathione in specific medical devices (such as products for facial superficial dermis injection, products for wound care) and various cosmetics, wherein the amount of glutathione is 0.1-3 wt%, the glutathione is used in combination with sodium hyaluronate at a mass ratio of (0.1-3):(0.6-3), and specific antioxidant components (such as vitamin C, vitamin E, etc.) and chelating agents can be further compounded to form a synergistically stable composite system. The application effectively improves the storage stability of glutathione in the product, and enables the glutathione to be adapted to various application scenes such as injection, wound care and skin care, thereby providing a reliable technical scheme for industrial application of glutathione in the fields of medical devices and cosmetics.

The invention relates to the technical field of skin care product preparation, and discloses a skin care product preparation method and equipment capable of whitening skin, removing freckles, smoothing skin and preserving moisture, and the skin care product is prepared from the following raw materials in percentage: 30% of tea leaf extract, 15% of oat extract, 15% of rose extract, 20% of centella asiatica extract, 5% of vitamin E, 10% of pearl powder and 5% of chitosan. The skin care product capable of whitening, removing freckles, smoothing skin and preserving moisture can be prepared, in the preparation process, the liquid level of mixed liquid can be moved upwards during stirring, raw materials left on plastic cloth due to liquid level recovery after stirring is stopped are flapped and shaken off into the mixed liquid, full utilization of the raw materials is guaranteed, the preparation effect is improved, and the skin care product can be used for whitening, removing freckles, smoothing skin and preserving moisture during flapping and shaken off. And the flapped raw materials can be blown downwards, so that the raw materials are prevented from flying onto the stirring assembly, and the raw materials are ensured to fully return to the mixed liquid.

The present application relates to the technical field of compound ointment, in particular to a natural mosquito-repelling and itching-relieving compound ointment containing Lyginia and cold-pressed coconut oil. The ointment comprises Lyginia extract, cold-pressed coconut oil, natural beeswax, natural modifier, natural synergist, menthol and vitamin E. In the natural mosquito-repelling and itching-relieving compound ointment containing Lyginia and cold-pressed coconut oil, the natural modifier and the cold-pressed coconut oil form a stable fat-soluble combination system, and the natural beeswax forms a semi-solid matrix network, which can optimize the bearing environment of the Lyginia extract in the matrix, reduce the stratification of active ingredients due to density difference, improve the dispersion uniformity and retention stability of active ingredients in the oil matrix, and improve the stable bearing capacity of unit ointment for active ingredients, thereby solving the problems of uneven dispersion of active ingredients and insufficient bearing capacity of unit ointment, and making the ointment more stably exert mosquito-repelling and itching-relieving effects during use.

The application discloses a supramolecular lotus leaf peptide-narcotic alkaloid Pickering emulsion as well as a preparation method and application thereof. The water phase of the supramolecular lotus leaf peptide-narcotic alkaloid Pickering emulsion is a purified lotus leaf peptide aqueous solution, and the oil phase is camellia seed oil loaded with narcotic alkaloids. The camellia seed oil not only serves as a fat-soluble carrier to improve the solubility of the narcotic alkaloids, but also has nursing effects due to the unsaturated fatty acids, vitamin E and phytosterols contained therein. The supramolecular assembly technology is used to mediate the lotus leaf peptide and the narcotic alkaloids to form high-performance emulsified particles, to replace synthetic surfactants to stabilize the Pickering emulsion, and to construct a natural emulsion system with high emulsification efficiency, high stability and high performance, so that the performance and the nursing effect of the emulsion are optimized.

A skin-improving agent containing the following components (A)-(C). (A) at least one substance selected from the group consisting of L-cysteine, derivatives thereof, and salts thereof; (B) at least one substance selected from ascorbic acid, derivatives thereof, and salts thereof; and (C) one or more than two selected from the group consisting of vitamin B5, vitamin B6, vitamin B2, vitamin E, gamma-oryzanol, angelica sinensis and an extract thereof.

The present application relates to the technical field of vitamin E, and discloses a method for removing trace contaminants in vitamin E, which comprises the following steps: contacting a preheated mixture containing vitamin E with activated carbon to remove the trace contaminants in the mixture containing vitamin E, and obtaining a vitamin E product. The method can improve the removal rate of the trace contaminants in the mixture containing vitamin E. The method does not need to introduce a solvent, thereby saving the step of removing the solvent, and therefore has the advantages of simple operation, energy saving and equipment investment, and low operation cost.

The invention relates to a large-particle dog and cat oral health-care functional food wrapped with instant freeze-dried particles and a preparation method thereof, and belongs to the technical field of pet food. According to the scheme, an external spraying system comprises grain base material particles, 0.1 to 0.15 part of lecithin, 0.002 to 0.003 part of monostearin, 0.001 to 0.003 part of vitamin E and 0.8 to 1.2 parts of chicken oil, and an instant freeze-dried particle layer comprises 0.1 to 0.2 part of fucoidan, 0.02 to 0.05 part of lysozyme, 0.04 to 0.08 part of tea polyphenol, 0.02 to 0.04 part of zinc gluconate, 0.05 to 0.1 part of Arabic gum, 0.03 to 0.1 part of glutamine, 0.01 to 0.02 part of vitamin B2, 0.01 to 0.04 part of vitamin B12 and 0.02 to 0.07 part of glycine. The toothpaste can effectively inhibit the formation of dental plaque and dental calculus and remove halitosis.

The application discloses a traditional Chinese medicine body milk and a preparation method thereof. The traditional Chinese medicine body milk comprises the following components by weight: 5-15 parts of traditional Chinese medicine active ingredients derived from an ancient prescription of Danggui Yinzi, 1-3 parts of vitamin E, 0.5-2 parts of ceramide NP with a purity of greater than or equal to 95%, and 0.1-0.5 parts of natural borneol with a purity of greater than or equal to 99%, and the rest is an oil phase matrix, an aqueous phase matrix and an emulsifier. The traditional Chinese medicine active ingredients comprise angelica extract, astragalus polysaccharide, sophoramine and glycyrrhizic flavone, and are obtained by a low-temperature warm extract process at 40-45 DEG C. The preparation method comprises the following steps: raw material pretreatment, warm extract extraction, filtration and purification, precise compounding and fusion, emulsification and molding, and cooling and filling. The product has the advantages that skin irritation is less than 0.3, 24-hour moisturizing power is greater than or equal to 78%, the retention rate of herbal active ingredients is greater than or equal to 83.2%, and absorption is achieved within 5 minutes after smearing, and is specially used for improving the problems of dry skin, itching and difficult healing of wounds caused by blood deficiency and dryness caused by old age and chronic diseases.

The invention provides a mild refreshing borneol essential oil compound as well as a preparation method and application thereof. The borneol essential oil compound is prepared from the following components in parts by weight: 1 to 50 parts of borneol, 0.1 to 50 parts of menthol, 1 to 10 parts of natural camphor, 0.1 to 0.5 part of herba dendrobii essential oil, 35 to 70 parts of carrier oil, 0.2 to 1 part of vitamin E, 1 to 3 parts of eudesmol, 0.2 to 1 part of limonene and 0.5 to 5 parts of cinnamomum camphora essential oil clathrate compound. The borneol essential oil compound prepared by the invention has the advantages of better stability, high essential oil retention rate, freshness and durability, mild components without skin irritation, and refreshing effect, and can be applied to preparation of products such as snorting essential oil, roll-on essential oil or vehicle-mounted fragrance and the like.

Disclosed herein are compositions for topical treatment that can include a therapeutic agent (preferably a topical antimicrobial or antifungal agent such as efinaconazole, tavaborole, or ciclopirox), a non-volatile organic solvent (preferably natural or synthetic vitamin E or vitamin E acetate), and optionally an emollient (such as cholesterol). Also disclosed herein are methods of treating diseases or disorders (preferably as a disease or disorder of the nail, nail bed, or skin, such as onychomychosis) by topically administering compositions that can include a therapeutic agent, a non-volatile organic solvent, and optionally an emollient.

The present application belongs to the technical field of tobacco essence preparation and biocatalysis application, and particularly relates to a tobacco essence prepared based on composite enzymes and a preparation process. The process first proportionally compounds pectinase, beta-glucosidase, lipase, lipoxygenase, glucose oxidase and acetyltransferase, and forms microcapsules through a sodium alginate-chitosan system; prepares an extract after steam explosion pretreatment of tobacco powder, loquat leaves and monk fruit; adds the microcapsule enzymes for three-stage segmented enzymolysis; further adds hydroxypropyl-beta-cyclodextrin to include aroma molecules, and after enzyme inactivation and filtration, concentrates and adds vitamin E to stabilize the quality of the essence, so as to finally obtain a tobacco essence with rich aroma levels and good thermal stability. Through the synergistic effect of composite enzymes and multi-stage reaction regulation, the present application realizes the directional release and construction of flavor substances in natural raw materials, and the obtained essence is suitable for various application scenarios such as cigarette flavoring and paper spraying.

The invention relates to the technical field of feed additives, and provides a feed additive of a laying hen eggshell improver as well as a preparation method and application of the feed additive. The feed additive of the egg shell improver for the laying hens comprises the following raw materials: glutathione, vitamin E, calcium acetate, potassium chloride, organic selenium and a caulis spatholobi extract, and a preparation method of the caulis spatholobi extract comprises the following steps: crushing and sieving caulis spatholobi to obtain caulis spatholobi powder; adding the caulis spatholobi powder into water, performing ultrasonic extraction, and filtering to obtain a first extracting solution and first filter residues; adding the first filter residue into a mixed extracting agent, performing reflux extraction, and filtering to obtain a second extracting solution and a second filter residue; mixing the first extracting solution and the second extracting solution, and performing extraction, vacuum concentration and drying to obtain a caulis spatholobi extract; the mixed extracting agent consists of ethanol and propylene glycol in a mass ratio of (6-7): 3. According to the technical scheme, the problem that the eggshell quality improvement effect of an eggshell improver in a feed additive in the related technology is poor is solved.

The invention provides a green, environment-friendly, efficient and mild detergent and a preparation method and application thereof, and belongs to the technical field of detergents. Comprising the following raw materials in parts by weight: 10 to 20 parts of a mild surfactant, 5 to 8 parts of an auxiliary surfactant composition, 1 to 2 parts of a plant extract, 0.5 to 1 part of vitamin C, 0.1 to 0.3 part of vitamin E, 0.2 to 0.5 part of vitamin B5, 0.005 to 0.007 part of essence, 0.1 to 0.3 part of EDTA (Ethylene Diamine Tetraacetic Acid) disodium and 60 to 80 parts of deionized water. The prepared green, environment-friendly, efficient and mild detergent is good in foaming effect, stable in chemical property, mild, low in toxicity, good in washing effect and good in degradability, due to addition of the auxiliaries, the sense of the detergent is smoother, the fragrance of the detergent is more loved, and the detergent has wide application prospects.

The invention discloses a pyrimidine derivative containing a thiosemicarbazide structure and application of the pyrimidine derivative, and relates to the technical field of medicines, the compound has good oxidation resistance and alpha-glucosidase resistance activity, and the compound is 2-(4, 4 '-difluorophenyl)-2-(4, 4'-difluorophenyl)-2-(4, 4 '-difluorophenyl)-2-(4, 4' The IC50 values of the compound 2-(4, 6-dimethyl pyrimidine-2-yl)-N-methylhydrazine-1-methylsulfamide on DPPH (1, 1-diphenyl-2-picrylhydrazyl) scavenging activity and ABTS (2, 2, 6-dimethyl pyrimidine-2-yl)-N-methylhydrazine-1-methylsulfamide are 3.96 mu g / mL and 2.01 mu g / mL respectively, the IC50 value of the compound 2-(4, 6-dimethyl pyrimidine-2-yl)-N-methylhydrazine-1-methylsulfamide on alpha-glucosidase inhibitory activity is 38.62 mu g / mL, the effect is best, and the compound 2-(4, 6-dimethyl pyrimidine-2-yl)-N-methylhydrazine-1 The pyrimidine derivative containing the thiosemicarbazide structure has a general formula shown in the specification, and is superior to control medicaments such as vitamin C, vitamin E and acarbose.

The invention discloses prebiotic soft fried dough twists and a making method thereof, and belongs to the technical field of food. The fried dough twist disclosed by the invention is prepared from the following raw materials in parts by mass: 132 to 169.5 parts of a dough base material, 5 to 6 parts of resistant dextrin, 7 to 9 parts of fructo-oligosaccharide microcapsules, 6 to 8 parts of isomaltitol, 1.5 to 2 parts of stachyose, 0.5 to 1.0 part of soybean lecithin and 0.01 to 0.03 part of vitamin E. The prebiotic retention rate is synergistically increased through microcapsule coating and a making process, the aging resistance of the fried dough twist is improved through synergistic moisturizing of resistant dextrin and fructo-oligosaccharide microcapsules, white granulated sugar is partially replaced by isomaltitol, stachyose and other sugar parts with low glycemic index, and the taste of the fried dough twist is improved. And the resistant dextrin with high dietary fiber content and the fructo-oligosaccharide prebiotics are matched, so that the product not only meets the sweet taste requirement, but also meets the healthy diet pursuit of modern consumers on low sugar, high fiber and high prebiotics.

This invention provides a continuous method for preparing vitamin E succinate polyethylene glycol ester (TPGS). It uses a strongly acidic cation exchange resin (such as the Amberlyst series) or a perfluorosulfonic acid resin (such as the Nafion series) as a heterogeneous catalyst, which is packed in a fixed bed to catalyze the esterification reaction between vitamin E succinate and polyethylene glycol. This method achieves precise proportioning of reactants, instantaneous mixing, isothermal reaction, and online dehydration, reducing the reaction time from several hours required by existing batch methods to tens of minutes. It allows for long-term stable use, requires no complex post-processing, and produces products with high yield, good purity, and light color. The preparation method of this invention solves the problems of difficult catalyst recovery, excessive waste, low efficiency, and unstable product quality in existing methods, making it particularly suitable for large-scale, continuous, and green production of TPGS.

The present application relates to the field of daily chemical industry and traditional Chinese medicine washing and protecting technology, in particular to a traditional Chinese medicine shampoo for relieving itching, removing dandruff and preventing hair loss and a preparation method thereof, which is prepared from 12 kinds of traditional Chinese medicines, including Platycladus orientalis, Radix Angelicae Sinensis, Radix Polygoni Multiflori, Herba Viscum, Ganoderma lucidum, etc., and auxiliary materials including gelatin, menthol, vitamin E, tea oil, a compound foaming agent compounded from amino acid and coconut oil. The preparation method is to extract effective components of traditional Chinese medicines by three times of high-temperature and high-pressure decoction, filter and concentrate under normal pressure, and then add auxiliary materials in sequence according to ladder type temperature to mix and prepare. The present application has the triple effects of relieving itching, removing dandruff, nourishing blood and hair, and nourishing scalp, is mild and non-irritating, and can reduce dandruff after 3 days of continuous use, has good product stability, and is suitable for long-term use of various hair types.

The invention relates to a coenzyme Q10 soft capsule and a preparation method thereof, and belongs to the technical field of health care products. The problems that an existing product wall material is insufficient in compactness and poor in stability, and contents are prone to seeping out are solved. The soft capsule is composed of a content and a wall material according to a specific mass ratio, the content contains coenzyme Q10, soybean oil, vitamin E and phospholipid, and the wall material contains gelatin, glycerin, an aloe-tremella mixed extract and purified water. The aloe-tremella mixed extract is prepared through pretreatment of fresh aloe, preparation of tremella powder, construction of a mixed system, ultrasonic extraction and post-treatment, natural active mucopolysaccharide and tremella polysaccharide contained in the aloe-tremella mixed extract can be synergistically crosslinked, and the aloe-tremella mixed extract, gelatin and glycerin jointly construct a compact wall material structure. The preparation method is simple in process, easy in parameter control and free of special equipment, the product can improve illumination and oxidation stability and reduce the content exudation rate, physicochemical properties and use safety are both considered, and the preparation method is suitable for industrial production.

The invention belongs to the technical field of edible plant blend oil, and discloses plant compound oil for protecting heart and blood vessels, reducing blood fat, resisting aging and fading spots and a preparation method thereof. The plant compound oil is prepared by compounding camellia oil, fermented soya beans, walnut oil, linseed oil, perilla oil, peach kernel oil, bitter apricot kernel oil, safflower seed oil and semen brassicae oil, and is prepared by the following steps: cleaning raw materials, alternately sterilizing and killing by ultraviolet rays and ozone, squeezing at low temperature, soaking the fermented soya beans at constant temperature, and stirring and mixing in vacuum. The product is rich in active ingredients such as unsaturated fatty acid, polyphenol, flavone, vitamin E, squalene and phytosterol, is high in cooking stability, has a remarkable synergistic effect of all the components, can effectively reduce triglyceride, regulate blood fat and protect heart and blood vessels, and has the effects of resisting oxidation, resisting ageing and fading spots. The process is mild, natural, safe and suitable for industrial production, and the obtained compound oil can be used as functional cooking oil and can also be used for preparing related functional food or health care products.

The application provides a high-solid-content fireproof glue and a preparation method thereof. The raw materials of the fireproof glue include aggregates, an anti-freezing agent, a dispersing agent, a curing agent and a defoaming agent. The aggregates include inorganic materials and metal oxides. The inorganic materials are silica sol and / or water glass, and the metal oxides are zirconium oxide and / or magnesium oxide. The mass of the dispersing agent is 1 wt% to 5 wt% of the mass of the fireproof glue, and the dispersing agent includes vitamin E succinate polyethylene glycol ester. The mass of the anti-freezing agent is 0.5 wt% to 5 wt% of the mass of the fireproof glue. The volume-mass ratio of the curing agent to the inorganic materials is 0.5 to 2 mL:10 g. The application uses vitamin E succinate polyethylene glycol ester (TPGS) as the dispersing agent, so that the solid particles of metal oxides with stable chemical properties, such as zirconium oxide and magnesium oxide, can be effectively added in the preparation process of the fireproof glue liquid. The problems that the salts containing zirconium and magnesium or the organic raw materials are prone to react or decompose in an alkaline environment are overcome, and the fire resistance and the heat insulation effect of the fireproof glue are significantly improved.

The present application relates to the field of feed additive, and discloses a feed additive, a preparation method and application thereof.The feed additive contains astaxanthin, curcumin, vitamin C palmitate, vitamin E, vitamin D3, piperine and a carrier.The preparation method comprises the following steps: mixing astaxanthin, curcumin, vitamin C palmitate, vitamin E, vitamin D3, piperine and the carrier.The feed additive can significantly improve the stress resistance, immunity, antioxidant capacity and disease resistance of aquatic animals, and has significant economic benefits.

The invention relates to a gemcitabine prodrug nano assembly as well as a preparation method and application thereof, and belongs to the field of new auxiliary materials and new dosage forms of pharmaceutical preparations. The gemcitabine-vitamin E prodrug is obtained by connecting gemcitabine and vitamin E by taking thiodiglycolic anhydride as a connecting chain, and the specific structure is as shown in a general formula (I). The prodrug disclosed by the invention can construct and form a gemcitabine-vitamin E prodrug nano assembly with good self-assembly stability and chemical stability based on a Core-matured technology, and specifically releases gemcitabine in a high-oxidation environment in tumor cells, so that the curative effect of gemcitabine is effectively improved, the toxic and side effects of gemcitabine are reduced, and the preparation method is suitable for clinical application. And a new strategy and choice are provided for developing a high-efficiency and low-toxicity chemotherapy preparation.

This invention discloses a natural composite light stabilizer for animal fats and its preparation method. The components and their mass percentages of the natural composite light stabilizer are as follows: rosemary extract: 45%–55%, vitamin E: 20%–25%, grape seed extract: 1%–5%, and olive leaf extract: 24%–25%; the sum of the mass percentages of the components is 100%. The vitamin E, rosemary extract, grape seed extract, and olive leaf extract selected in this invention are all natural and safe raw materials. Under the optimized combination ratio of the four components in this application, the synergistic effect between the components is fully utilized, thereby inhibiting the oxidation rate of edible animal fats under high temperature and light conditions. Its effect is significantly better than commonly used synthetic antioxidants in fats, such as BHA and TBHQ.

Disclosed is an antimicrobial composition, comprising the following components in parts by weight: 4-6 parts of vitamin C, 1-2 parts of vitamin E, 1-2 parts of angelica polysaccharides, and 1-2 parts of Ligustri lucidi fructus polysaccharides. Further disclosed are a preparation method for the antimicrobial composition and use thereof in the preparation of a drug for inhibiting bacteria and / or fungi or treating inflammation.