114 results about "Ethanol extracts" patented technology

The invention discloses a preparation method of an astragalus extract with a uric acid reducing effect, and belongs to the technical field of biological medicines. The method comprises the following steps: concentrating an ethanol extract of radix astragali, extracting by using n-butyl alcohol, ethyl acetate and petroleum ether respectively, and concentrating an extract to obtain n-butyl alcohol, ethyl acetate and petroleum ether extraction parts and residual parts respectively, so as to obtain an n-butyl alcohol extract, namely the radix astragali extract for reducing uric acid. Efficacy experiments show that the normal butanol extraction part of the ethanol extract of the astragalus membranaceus can obviously reduce the serum uric acid level (SUA) of a mouse with hyperuricemia, inhibit the activity of xanthine oxidase (XOD) and effectively improve kidney injury caused by the hyperuricemia. The uric acid reducing effect of the radix astragali n-butyl alcohol extract is close to that of a clinical drug allopurinol, and the radix astragali n-butyl alcohol extract has wide development and application prospects in the aspect of relieving hyperuricemia.

The invention provides a method for rapidly detecting the ABTS < + > free radical scavenging rate of a traditional Chinese medicine extract based on Fourier infrared spectroscopy, which comprises the following steps: (1) collecting the Fourier infrared spectroscopy of a dandelion ethanol extract, and measuring the true value of the ABTS < + > free radical scavenging rate corresponding to the Fourier infrared spectroscopy by using spectrophotometry; (2) preprocessing the collected Fourier infrared spectrum to obtain a preprocessed spectrum; (3) carrying out characteristic wavelength variable extraction on the preprocessed spectrum by adopting a VIP algorithm, and combining spectrum segments corresponding to extracted characteristic wavelengths into a characteristic spectrum; (4) performing PCA analysis and step length segmentation processing on the characteristic spectrum to obtain an angle characteristic vector alpha y, and forming an angle characteristic matrix alpha by the angle characteristic vectors of all the traditional Chinese medicine extracts; and (5) constructing a regression model by using the angle feature vector matrix alpha. Compared with a traditional spectrophotometric detection method, the method has the advantage that the accuracy and the stability of a detection result can be better improved.

This invention discloses a method for determining the components of an ethanol extract of *Clerodendrum trichotomum* leaves. A liquid chromatography-mass spectrometry (LC-MS) method was established to detect the content of the ethanol extract. Raw data acquired by mass spectrometry was retrieved using software and compared with a mass spectrometry database to identify the chemical components of the ethanol extract. Ultimately, 44 chemical components were detected in the ethanol extract, providing a basis for the quality and efficacy evaluation of *Clerodendrum trichotomum* medicinal materials.

The application discloses a preparation method of ethanol extract of Drynaria Rhizome and application thereof. The method comprises the following steps: crushing and sieving Drynaria Rhizome, adding ethanol, reflux extraction, combining filtrates, vacuum concentration and drying, and thus the ethanol extract of Drynaria Rhizome is obtained. The in-vitro alpha-glucosidase enzyme inhibition experiment shows that the ethanol extract of Drynaria Rhizome has a significant inhibitory effect on alpha-glucosidase enzyme, and the IC 50 is about 142.68 μ g / mL. Therefore, the ethanol extract of Drynaria Rhizome can be used for preparing a hypoglycemic drug, health care product or functional food, and has a wide application prospect.

Natural turmeric and hibiscus inks were developed for use on fabrics and writing surfaces. Ethanolic extracts of turmeric and hibiscus were obtained and formulated with environmentally friendly mordants such as ferrous sulfate, ascorbic acid, and apple cider vinegar, and thickeners such as linseed oil and aloe vera. These treatments were tested on fabric, filter paper, and notebook paper. Color and color loss were evaluated using the Paint program when exposed to sunlight and washing (in the case of fabric), comparing the RGB and Hex pixel values ​​obtained before and after sun exposure and washing. The degree of similarity was assessed using a digital Color Matcher Tool with the Hex and RGB data. Once the best treatment with the aforementioned mordants was determined, the ink formulation was developed using thickeners such as gelatin, alginate, cornstarch, and honey.It has a pleasing color and good consistency for use on fabric and paper. It's possible to create inks for writing and dyeing fabrics with readily available ingredients, thus contributing to environmental protection.

The invention relates to a preparation method and application of an effective part of hyssop officinalis L. The method comprises the following steps: taking hyssop officinalis L., cutting into cun sections, carrying out reflux extraction with ethanol, filtering, merging filtrates, carrying out vacuum concentration, and carrying out vacuum drying to obtain a hyssop officinalis L. ethanol extract; and dissolving the extract in ethanol, extracting with ethyl acetate, concentrating the upper layer under reduced pressure, and drying in vacuum to obtain the effective part of hyssop officinalis. The invention further discloses application of the effective part of the hyssop officinalis obtained through testing in preparation of the anti-allergic asthma medicine.

The present application relates to a kind of blended fabric segmented steaming fixation method, comprising the following steps: blended fabric is sequentially carried out desizing, kiering, bleaching and mercerizing treatment, and pretreatment blended fabric is obtained after drying;Using composite reagent on pretreatment blended fabric is carried out padding treatment or vacuum-assisted foam impregnation treatment, and pre-treatment blended fabric is obtained after hot air drying;Prepare dye liquor, and after using dye liquor on pre-treatment blended fabric is carried out dye liquor padding treatment, then carry out segmented steaming fixation treatment, and after sequentially washing, drying, setting, obtain dyed blended fabric.The present application uses the composite reagent containing Ageratina pichurini ethanol extract and simmondsia chinensis seed oil to carry out padding treatment or vacuum-assisted foam impregnation treatment on blended fabric before dyeing, then carries out segmented steaming fixation treatment, can significantly improve the tensile strength and wash fastness of blended fabric, while giving blended fabric good gloss, and can make blended fabric keep better perspiration fastness.

The invention discloses a mosquito prevention and control composition based on jonquil extract and application of the mosquito prevention and control composition. The invention provides an application of an ethanol extract of jonquil leaves in killing mosquitoes or preparing products for killing mosquitoes. The invention firstly proves that the kalanchoe blossfeldiana ethanol extract has a killing effect on three mosquito species, and the killing effect is obviously superior to that of kalanchoe laciniata which is the same family plant. The invention further provides a mosquito prevention and control composition containing the ethanol extract of the jonquil leaves and a mosquito prevention and control compound composition containing the ethanol extract of the jonquil leaves and dinotefuran. The insecticide poison bait prepared by compounding the jonquil extract and the chemical insecticide provides a new thought for constructing an efficient, low-consumption and environment-friendly mosquito comprehensive treatment system, and is suitable for comprehensive prevention and control of mosquito-borne diseases.

The application discloses an immune function enhancing composition which is mixed by sambucus williamsii alcohols extract and lactobacillus rhamnosus agent. The application can effectively immunize the spleen, improve the spleen index and thymus index, has the function of immune regulation, and can also improve the IgM and IgG content in serum.

The invention discloses a traditional Chinese medicine monomer composition derived from chrysanthemum plants and used for treating diabetic retinopathy as well as a preparation method and application of the traditional Chinese medicine monomer composition. The traditional Chinese medicine monomer composition prepared from the chrysanthemum plant as the raw material is high in safety, small in side effect and definite in component and is prepared according to a specific ratio, and pharmacodynamic experiments prove that compared with an ethanol extract, the traditional Chinese medicine monomer composition is more remarkable in curative effect on diabetic retinopathy, and the curative effect of the traditional Chinese medicine monomer composition on diabetic retinopathy is better than that of a traditional Chinese medicine composition on diabetic retinopathy. The composition can improve the pathological state of diabetic retinopathy from multiple targets and multiple ways, specifically can inhibit body mass increase caused by high glucose, reduce blood glucose level, improve retinal tissue structure damage, recover retinal tissue thickness, inhibit retinal cell apoptosis and inflammatory response, reduce the expression level of HIF-1alpha and VEGF protein in retinal tissue, and can be used for treating diabetic retinopathy. Scientific basis and technical support are provided for research and development of novel drugs for treating the diabetic retinopathy, and important clinical significance and market application prospects are achieved.

The invention relates to a dictyophora rubrovolvata fresh-keeping method and fresh-keeping powder used by the same. The fresh-keeping powder is prepared from the following raw materials in percentage by mass: 0.1-1% of ethanol extract of bacilli of dictyophora rubrovolvata, 5-30% of bacilli polysaccharide, 10-50% of chitosan and 20-85% of corn starch (2-8% of calcium chloride is added). The powder provided by the invention contains dictyophora rubrovolvata mycosterol, terpene and polysaccharide substances, contains low-acetyl-degree chitosan with strong antibacterial ability and certain water solubility, and absorbs moisture of the dictyophora rubrovolvata body after being contacted with the newly picked dictyophora rubrovolvata, acidic mycosterol with negative charges and alkaline low-acetyl-degree chitosan with positive charges are subjected to electrostatic adsorption reaction, so that the moisture of the dictyophora rubrovolvata can be absorbed, and the moisture of the dictyophora rubrovolvata can be absorbed; the components are mutually attracted to form a local film, so that the moisture of the mushroom body can be locked, the mass loss and hardness reduction can be relieved, the freshness can be kept through oxidation resistance and bacteria resistance, the peroxidation degree of film lipid can be relieved, the cell integrity can be maintained, and the retention rate of nutrient substances such as reducing sugar and soluble protein can be effectively increased.

The invention relates to the field of biology, in particular to a composition of a rhodiola rosea alcohol extract and a nannochloropsis oculata extracting solution and application of the composition. The weight volume ratio of the rhodiola rosea alcohol extract to the nannochloropsis oculata extracting solution in the composition is (0.005 to 0.1) g: (0.02 to 0.5) mL. After the rhodiola rosea alcohol extract and the nannochloropsis oculata extracting solution are combined, the ROS content after hydrogen peroxide induction can be reduced.

This invention provides a compound Phellodendron amurense freeze-dried powder and its preparation process, relating to the field of deep processing technology of compound Phellodendron amurense extract. The preparation process includes the following steps: 80±10 parts by weight of Forsythia suspensa, 40±5 parts by weight of Phellodendron amurense, 40±5 parts by weight of Lonicera japonica, 40±5 parts by weight of Taraxacum mongolicum, and 2.4±0.3 parts by weight of Scolopendra subspinipes. S1: Take a certain weight of the above five ingredients, add water and decoct, concentrate to a clear extract with a relative density of 1.10-1.15, add ethanol to make the alcohol content reach 70%, let stand, concentrate until there is no alcohol odor, and obtain compound Phellodendron amurense ethanol extract; S2: Take the compound Phellodendron amurense ethanol extract, add water to a certain volume, refrigerate, filter, and obtain compound Phellodendron amurense freeze-dried stock solution; S3: Take the compound Phellodendron amurense freeze-dried stock solution, fill, and freeze-dry to obtain compound Phellodendron amurense freeze-dried powder. The compound Phellodendron amurense freeze-dried powder prepared by this invention solves the problems of existing coatings being non-sterile, unstable, and inconvenient to transport.

The present invention provides a method of isolating arjunetin from the bark of Terminalia arjuna. The invention provides a simplified, cost-effective method and scalable method for isolation of arjunetin from the Terminalia bark. The present invention encompasses an ethanolic extract of arjunetin that comprises arjunetin with 95% purity. The ethanolic extract of arjunetin is obtained from solvent extraction without using column chromatography. Arjunetin has various therapeutic applications, anti-diabetic, anti-inflammatory, anti-cancer, and anti-viral drugs.

The invention relates to the technical field of nematicides, in particular to application of camellia oleifera cakes in prevention and treatment of meloidogyne incognita. The ethanol extract of the oil tea cake has high biological activity on meloidogyne incognita and has a synergistic effect with fluopyram, and the prevention effect can be remarkably improved by compounding the ethanol extract of the oil tea cake and the fluopyram. The ethanol extract of the oil tea cake has remarkable poisoning activity on meloidogyne incognita J2s, the EC50 value of the ethanol extract is reduced along with the prolonging of treatment time, and the EC50 value reaches 1.43 mg / mL when the treatment time is 72 h; an obvious inhibition effect is achieved on nematode egg incubation, and the inhibition rate of 15 mg / mL treatment at 7 days reaches 85.12%. A compounding experiment shows that when the fluopyram and the ethanol extract of the oil tea cake are prepared according to the ratio of 1: 1-9 or 3: 1, the synergistic index (CI) is less than 1, and an obvious synergistic effect is shown; in a pot experiment, the control effect on luffa rhizosphere J2s reaches 85.41% and the root knot index control effect reaches 82.06% when the luffa is treated according to the compounding ratio of 1: 5, and the control effect and the root knot index control effect are obviously superior to those of single-agent treatment.

The invention relates to the technical field of medicine, and provides a preparation method and application of a safflower seed meal ethanol extract.The method comprises the steps that after safflower seed meal is smashed, a 55%-95% ethanol solution is added according to the material-liquid ratio of 1: 5-1: 25; after soaking for 0.5-2.5 hours at room temperature, heating, refluxing and extracting for 0.5-2.5 hours at 35-75 DEG C; and repeatedly extracting once, combining filtrate, concentrating under reduced pressure, and freeze-drying. The total flavone content in the safflower seed meal ethanol extract extracted by the invention is not less than 7.4%. According to the method, a single-factor experiment design response surface is combined to optimize the extraction process of the total flavonoids of the safflower seed meal, optimal extraction conditions are found, development and utilization of the safflower seed meal are enhanced, the comprehensive utilization rate is increased, and the marginal Xinjiang economy is revitalized.

The invention discloses a high-content propolis ethanol extract soft capsule and a production process thereof. The contents comprise the following raw materials in parts by weight: 30-40 parts of a high-content propolis ethanol extract, 10-20 parts of nanoscale propolis particles, 55-65 parts of polyethylene glycol 600, 5-8 parts of optimized vegetable oil, 3-8 parts of glycerol, 1-3 parts of a suspending aid, 0.5-1.5 parts of vitamin E, 1-3 parts of nano silicon dioxide and 0.1-0.3 part of sodium citrate; and a capsule shell: 10-15 parts of gelatin, 2-5 parts of glycerol, 12-18 parts of purified water, 0.05-0.15 part of potassium sorbate and 0.1-0.3 part of titanium dioxide. The invention relates to the technical field of propolis products. According to the high-content propolis ethanol extract soft capsule and the production process, a pretreatment process of low-temperature freeze-drying, liquid nitrogen embrittlement and ultramicro wall breaking is adopted, so that propolis cell walls are thoroughly broken, and the specific surface area is greatly increased; in cooperation with a gradient ethanol extraction technology, high-polarity flavonoid and phenolic acid components are extracted by using high-concentration ethanol, and then moderate-polarity active components are extracted by using moderate-concentration ethanol, so that sufficient dissolution of the different-polarity active components is realized.

The present invention relates to a topical composition comprising a 100 μg / mL ethanolic extract from the plant Aspalathus linearis together with a dermatologically acceptable carrier for use in a method of preventing or treating a hypopigmentary disorder of skin in a subject comprising applying the topical composition to the skin of the subject. The invention further relates to methods of preventing or treating a hypopigmentary disorder of skin in a subject comprising applying the topical composition to the skin of the subject.

The invention relates to the technical field of medicines, and discloses a preparation method and application of an alcohol extract of root tuber of pilose asiabell. The preparation method comprises the following steps: crushing dried tuberous roots of cayenne pepper, sieving, weighing cayenne pepper powder, adding 95% ethanol, soaking and extracting at room temperature for 2 days, stirring once within 2 hours, once stirring for 30 minutes, performing suction filtration after soaking to obtain ethanol leaching liquor, soaking and extracting filter residues for 2 times, merging the ethanol leaching liquor, transferring into a rotary vacuum concentrator, and concentrating to obtain the cayenne pepper pure extract. Concentrating and drying to obtain a maozhou root tuber alcohol extract; experimental verification shows that the prepared pure extract of the sauced head has the effect of relieving the fatty liver, so that the pure extract of the sauced head can be used for preparing the medicine for relieving the fatty liver.

The application relates to the technical field of plant chemistry and active ingredient heterocyclic compounds of traditional Chinese medicine, and discloses a C17 sesquiterpene alkaloid, a preparation method and application, wherein the C17 sesquiterpene alkaloid and a pharmaceutically acceptable salt thereof are shown as formula I; the C17 sesquiterpene alkaloid of formula I is separated from an ethanol extract n-butanol extraction phase of Dendrobium huoshanense stems through three-step operations of silica gel column chromatography, acid solution and base precipitation and recrystallization; the structure of the compound is determined through nuclear magnetic resonance, high-resolution mass spectrometry and single crystal diffraction analysis; experiments show that the C17 sesquiterpene alkaloid can effectively inhibit the survival and proliferation of A549 lung cancer cells, has good anti-lung cancer activity, and can be used for preparing anti-lung cancer drugs.

The invention belongs to the technical field of prebiotics, and particularly relates to plant extract composite prebiotics as well as a preparation method and application thereof. The invention provides a plant extract composite prebiotics, which is prepared by compounding a purslane ethanol extract and a common turnip ethanol extract in equal mass ratio, and the purslane ethanol extract and the common turnip ethanol extract are prepared by soaking purslane and common turnip in an ethanol solution with the volume concentration of 94-96%, performing ultrasonic extraction, concentrating and freeze-drying. The plant extract composite prebiotics provided by the invention can remarkably promote the growth of probiotics such as lactobacillus plantarum, lactobacillus paracasei and pediococcus pentosaceus, have the effects of regulating intestinal flora balance and promoting intestinal colonization of the probiotics, and also have antioxidant activity, thereby providing a new choice for development of prebiotics with natural sources.

This invention belongs to the field of medicinal chemistry, specifically relating to a polysaccharide component from green plums, its preparation method, and its application. The invention first involves ethanol extraction of green plums (a dual-purpose medicinal and edible variety), separating the ethanol extract and the ethanol-extracted residue. The residue is then subjected to water extraction to remove protein, yielding a water-soluble crude extract. The ethanol extract and the water-soluble crude extract are then separated by macroporous adsorption resin column chromatography using pure water as the eluent, yielding a pure water eluent. The pure water eluent of the water-soluble crude extract is further fractionated and precipitated with alcohol to obtain different water-soluble polysaccharide alcohol-precipitated fractions. The ethanol-extracted polysaccharide component is obtained from the pure water eluent of the ethanol extract. The fractionated and ethanol-extracted polysaccharide components from green plums prepared using the method of this invention can be used to prepare drugs for the prevention and treatment of diabetes and kidney disease, exhibiting high safety and promising development and application prospects.

A system for the manufacture of pharmaceutical formulations for the treatment of diabetes and diabetic neuropathy, comprising: a) an extraction unit for producing an ethanolic extract from shade-dried leaves of Moringa oleifera Lam. and Bacopa monnieri Linn., and defatting the dried, crushed leaves with petroleum ether to remove lipids and chlorophyll; b) a fractionation unit configured to fractionate the ethanolic extract with ethyl acetate to obtain the ethyl acetate fraction; c) a phytosome preparation unit for the production of phytosomes using antisolvens precipitation technology, wherein the phytosome preparation unit comprises the following: • an ultrasonic device for sonicating a mixture of ethyl acetate fraction and phosphatidylcholine, • a heating device configured to heat the sonicated mixture below 40 °C, and • a condensation device configured to condense solvents into a complex film; and d) a formulation unit configured to incorporate the phytosomes into pharmaceutical dosage forms.

This invention discloses the application of chestnut total burr ethanol extract in the preparation of anti-colitis drugs. In this invention, the chestnut total burr ethanol extract with anti-colitis properties is obtained by extracting chestnut total burrs with 70% ethanol. This chestnut total burr ethanol extract inhibits the production of LPS-induced pro-inflammatory mediators (NO) and pro-inflammatory cytokines (TNF-α, IL-6, and IL-1β) without cytotoxicity; it has a significant inhibitory effect on dextran sulfate sodium-induced colitis in mice, including slowing down weight loss, reducing mouse DAI scores, alleviating colonic tissue damage, downregulating the levels of IL-6, IL-1β, TNF-α, and MDA in mouse colonic tissue and serum, and enhancing the activities of CAT and SOD in mouse colonic tissue and serum. Therefore, the chestnut total burr ethanol extract has significant anti-inflammatory effects both in vivo and in vitro, and can be used to treat colitis.

The application discloses a traditional Chinese medicine composition for treating insomnia, anxiety depression and AD, a preparation method and application thereof. The traditional Chinese medicine composition adopts an ethanol extract of raw medicinal materials, and the raw medicinal materials include, by weight, 175-185 parts of polygala root, 160-170 parts of jujube seed, 90-100 parts of platycladus seed, 150-160 parts of jujube, 160-170 parts of fried licorice, 160-170 parts of astragalus, 150-160 parts of angelica, 150-160 parts of salvia miltiorrhiza, and 155-165 parts of schisandra chinensis. The raw medicinal materials in the traditional Chinese medicine composition are based on the polygala root, and are combined with the jujube seed, the platycladus seed, the jujube, the fried licorice, the astragalus, the angelica, the salvia miltiorrhiza and the schisandra chinensis. The components have a synergistic effect, can treat insomnia, anxiety depression and AD, and have the advantages of small side effect of traditional Chinese medicine and difficulty in drug resistance.

The invention discloses a melicope evodia extract with an effect of inhibiting growth of weeds as well as a preparation method and application of the melicope evodia extract. The ethanol extract of the cornel tuber part of the flos eriocauli is extracted with petroleum ether and ethyl acetate respectively and concentrated under reduced pressure, and experimental screening finds that the ethyl acetate part has good germination and growth inhibition effects on arabidopsis thaliana or barnyard grass, but is safe to rice, can be developed into a new pesticide preparation and has important application value.

The invention relates to a powder preparation method of a dye plant extract, dye powder and a textile dyeing method. The powdering method comprises the following steps: soaking dye plant raw material powder to extract carbohydrates at 70-90 DEG C under an alkaline condition by using ethanol as a solvent, and separating an ethanol extracting solution after the extraction is completed; taking water as an extraction solvent, and extracting the dye plant raw material subjected to the sugar removal treatment to obtain an extracting solution; concentrating the extracting solution, and adding dextrin; and performing spray drying to prepare dye powder. The invention also provides a dyeing method based on the dye powder. According to the technical scheme provided by the invention, macromolecular saccharides can be converted into micromolecular saccharides under high-temperature and alkaline conditions, and the micromolecular saccharides are dissolved in ethanol to be removed, so that the content of saccharide impurities in pigment dye during subsequent aqueous solution extraction is greatly reduced, and the problem of wall sticking of an extract in a drying tower during spray drying can be obviously improved with the help of dextrin.

The invention relates to a Gleditsia sinensis seed ethanol extract and a preparation method and application thereof in aquatic animal immunization, the preparation method of the Gleditsia sinensis seed ethanol extract comprises the following steps: crushing Gleditsia sinensis seeds, adding 75-80% ethanol solution according to a solid-to-liquid ratio of 1: 8-1: 10, and extracting; during extraction, heating is performed to 80-85 DEG C, reflux extraction is performed 2-3 times, and each time lasts for 1.5-2 hours; combining all extracting solutions, and filtering under reduced pressure to obtain clear filtrate; and concentrating the filtrate to 1 / 5 of the original volume under reduced pressure by using a rotary evaporator, and freeze-drying the concentrated solution to obtain faint yellow powder. The gleditsia sinensis seed ethanol extract is applied to improvement of the immune function of aquatic animals. The invention provides a novel immunopotentiator, namely the gleditsia sinensis seed extract, for aquaculture. The immunopotentiator is low in cost, simple in preparation process, remarkable in immunopotentiation effect, safe, environment-friendly and suitable for being mixed with feed for feeding aquatic animals.

The present application relates to the technical field of gynecological bacteriostatic gel, and particularly relates to a ulipristal bacteriostatic gel and a preparation method thereof; the ulipristal bacteriostatic gel comprises the following components in parts by weight: chlorhexidine acetate 1-3 parts, meihua grass extract 4-8 parts, carbomer 0.8-1.2 parts, triethanolamine 0.4-0.6 parts, penetration enhancer 0.5-1.5 parts, modified nano-silver 0.04-0.07 parts, glycerol 5-8 parts, hydrogenated polyisobutylene 0.03-0.07 parts, disodium edetate 0.1-0.3 parts and purified water in a remainder amount; the chlorhexidine acetate and the meihua grass ethanol extract are compounded at a ratio of 1:(2.5-4), the flavones and polyphenols in the meihua grass can destroy the cell membrane permeability of microorganisms, promote the chlorhexidine acetate to enter the inside of the microorganism, and significantly reduce the minimum bacteriostatic concentration.

The application relates to the field of natural medicines, and discloses an alkaloid, a preparation method and application thereof, the alkaloid having a structure shown in formula I and pharmaceutically acceptable salts thereof. The alkaloid is separated from a n-butanol extraction part of an ethanol extract of Dendrobium huoshanense stems through silica gel column chromatography and a preparation thin layer separation technology, and the structure is identified through nuclear magnetic resonance and high-resolution mass spectrometry. Through cell experiments, it is verified that the alkaloid prepared in the application can significantly relieve inflammation induced by LPS, inhibit human gastric cancer cell (AGS) proliferation and promote apoptosis; molecular docking analysis shows that the alkaloid prepared in the application can be significantly docked with active sites of induced iNOS, IL-6, TNF-alpha and MMP9, and the binding energy is-9.5~(-8.6) kcal / mol.