201 results about "Astragalus verus" patented technology

The invention discloses multi-herb antibacterial liquid, relates to an external medicament for treating skin diseases and a preparation method thereof, and belongs to a medical external medicament. The external liquid medicine for treating various skin diseases comprises the following medicinal components by weight: 10-20 g of folium artemisiae argyi, 10-15 g of white mulberry branch, 10-15 g of angelica root, 10-15 g of galanga, 5-20 g of isatis root, 10-15 g of mint, 10-15 g of schizonepeta, 10-15 g of lithospermum, 5-15 g of fructus forsythiaev, 10-20 g of cortex dictamni, 10-15 g of rhizoma atractylodis, 10-15 g of tuber of stemona, 10-15 g of corktree, 10-20 g of cicada slough, 10-20 g of honeysuckle, 10-15 g of divaricate saposhnikovia root, 10-15 g of scutellaria baicalensis, 10-20 g of sophora flower, 5-15 g of pepper, 10-15 g of root-bark of Chinese wolfberry, 10-15 g of seed of Job's tears, 10-15 g of cinnamon, 10-15 g of coptis, 10-20 g of astragalus root, 10-15 g of golden larch bark, 10-15 g of rhubarb, 10-20 g of safflower, 10-20 g of radix sophorae flavescentis, 10-15 g of ephedra, 5-15 g of black snake, 10-20 g of angelica, 10-15 g of asarum, 10-15 g of vermilion, 5-10 g of borneol, 5-15 g of long-noded pit viper, 10-15 g of saponin, 5-10 g of cantharis, 10-15 g of fructus cnidii and 3,200 ml of 60-degree spirit brewed from store-up grains. A product provided by the invention is dark brown liquid and has the smell of Chinese herbal medicines and mild fragrance of wine. The 39 raw material medicaments included in the product are processed through seven operation processes.

The invention relates to a formulation for treating fetal leakage and fetal irritability and its preparing process, wherein the formulation is prepared from Chinese medicinal herbs including prepared rhizome of rehmannia, Chinese angelica root, Ligusticum wallichii, radix paeoniae rubrathe, pilose asiabell root, astragalus root, poria cocos wolf, white atractylodes rhizome, dodder seed, eucommia bark, dipsacus root, herb of Chinese fevervine, donkey-hide gelatin, Chinese mugwort leafmulberry leaf, cuttle-bone, lotus seeds, baikal skullcap root, Bupleurum root, amomum fruit, licorice root, and jujube.

The invention provides a preparation method of astragalus polysaccharide selenide, which comprises the following steps: adding astragalus polysaccharide II in dehydrated pyridine, and then adding a selenium-containing reagent SeOCl2; washing the mixture with anhydrous ethanol, depositing and centrifugating, and drying the mixture by vacuum refrigeration; and finally, obtaining light pink powderedastragalus polysaccharide selenide. The preparation method of the invention can increase the content of the organic selenium in the astragalus polysaccharide selenide; the prepared astragalus polysaccharide selenide has high biological availability; and the preparation method shortens the production time, improves the production efficiency and is economical and safe.

The invention discloses streptococcus alactolyticus LZMYFGM9 for the first time. The collection number of the strain is CGMCCNo.4227; and the invention also discloses a fermentation bacterium agent comprising the strain and an application thereof. The streptococcus alactolyticus in LZMYFGM9CGMCCNo4227 disclosed by the invention can be used for extracting astragalus polysaccharides. The method has the advantages of strong practicability, simple and convenient operation and high efficiency, and has a wide practical application prospect.

The invention discloses a method for continuous counter-current ultrasonic extraction of high-purity astragalus polysaccharide. The method comprises the following processing steps: crushing astragalus membranaceus and soaking into distilled water; centrifuging and taking supernate after continuous counter-current ultrasonic extraction; decoloring by active carbon, so as to obtain an astragalus polysaccharide water extract solution; then concentrating and adding ethanol to stir; centrifuging and diluting sediments by the distilled water; carrying out alcohol precipitation after filtering diluents by a membrane, wherein the sediment is astragalus polysaccharide solid. By adopting the method, the dissolution rate of the astragalus polysaccharide can be improved; the extraction time is shortened; the dosage of a solvent is reduced. Therefore, the method has the characteristics of high selectivity, simple process, low energy consumption, high yield, high product purity and the like.

The invention provides detoxification strengthening powder for treating chronic viral hepatitis B, which comprises the following components in parts by weight: 15-25 parts of vinegar radix bupleuri, 15-25 parts of honey-fried licorice root, 60-75 parts of poria cocos, 60-75 parts of rhizoma atractylodis macrocephalae, 60-75 parts of radix paeoniae alba, 30-50 parts of angelica sinensis, 85-100 parts of honeysuckle flower, 80-100 parts of sculellaria barbata, 60-75 parts of raw astragalus membranaceus, 90-100 parts of the root of red-rooted salvia, 80-100 parts of raw barley, 30-45 parts of schisandra chinensis, 35-50 parts of the root bark of the peony tree, 35-50 parts of medlar and 30-50 parts of glossy privet fruit. By adopting multi-directional, multi-target and multi-link comprehensive treatment according to multiple complex mechanisms of diseases, the composition provided by the invention has the functions of balancing yin and yang and regulating the qi and blood of the chronic hepatitis B patients, so that the chronic hepatitis B patients have full healthy atmosphere, and the pathogenic factors can be removed. Each single medicine is not powerful; the components have different effects, for example, the honeysuckle flower can clear away heat and toxic materials but cannot replace angelica sinensis to nourish and regulate blood, and even more, the honeysuckle flower does not have the effect of medlar for nourishing liver and kidney. Each medicine should be reasonably combined with other medicines, so that both symptoms and root causes can be resolved, and a more remarkable clinical treatment effect can be obtained.

The invention relates to astragalus polysaccharide and an extracting and purifying method thereof. The extracting and purifying method comprises the steps: carrying out soxhlet extraction on the crushed dry astragalus membranaceus by utilizing ether, volatilizing the residues dry, extracting the dry residues by utilizing boiling water, concentrating and centrifuging the boiling water extraction liquid, collecting the supernatant, precipitating the supernatant by utilizing alcohol, standing, centrifuging again, collecting precipitate, washing, dissolving the precipitate by utilizing distilled water, adding 0.1-0.2% of papain, placing in a water bath with a temperature of 50+ / - 5 DEG C for 2h to 4h, removing the protein by adopting a Sevage method;decoloring by utilizing active carbon, concentrating under reduced pressure, cooling and dialyzing by using flowing water; precipitating with alcohol again and standing; and drying the precipitate at the temperature of 60 to 70 DEG C to obtain crude polysaccharide. Tests show that the astragalus polysaccharide has a good physical and sense moistening effect on cigarette and can reduce the irritation and offensive odor of the cigarette, the roundness and comfort of the cigarette smoke can be improved, and the astragalus polysaccharide can be used as a tobacco moistening agent with excellent performance in the cigarette.

The invention discloses a pure Chinese herbal medicine pillow for preventing and treating repeated infection of the respiratory tract and preparation process, wherein the pillow core is parepared from astragalus root, white atractylodes rhizome, Schizonepeta tenuifolia, ledebouriella root, sweet basil, Bupleurum root, Magnolia liliflora Desr., dahurian angelica root, root of ballon flower, cordate houttuynia, banksia rose, cardamom, Ligusticum wallichii, wild chrysanthemum flower, and Ficus carica leaves.

The invention provides a microecological preparation used in prawn feeds and an application thereof. The microecological preparation comprises the following ingredients: bacillus subtilis powder, bacillus licheniformis powder, a honeysuckle flower extract (10 to 1) and astragalus polysaccharides (60%) in the mass ratio of 5 to 3 to 1 to 1. By adding the microecological preparation to the prawn feeds, the growth and the anti-stress capacities of prawns can be improved, the immune functions can be enhanced and the survival rates of the prawns can be increased.

The invention relates to caterpillar fungus stilbene ginseng capsule. The caterpillar fungus stilbene ginseng capsule is prepared from the following raw materials by weight: 140g of caterpillar fungus, 1,400g of astragalus membranaceus, 560g of salviae miltiorrhizae, 560g of safflower and 280g of spina date seed. The caterpillar fungus stilbene ginseng capsule disclosed by the invention treats both principal and secondary aspects of chronic nephritis, is easy to prepare, has an exact treatment effect, is based on a rigorous formula and has a wide application prospect.

The invention provides an extraction and purification method and application of a fermented astragalus polysaccharide. The extraction and purification method of the fermented astragalus polysaccharide comprises the following steps of (1) carrying out warm immersion extraction on fermented astragalus, concentrating an extracting solution by using a membrane intercepting ultrafilter, removing protein through a Sevag method, and carrying out dialysis, alcohol precipitation and washing to obtain a crude fermented astragalus polysaccharide; (2) purifying the fermented astragalus polysaccharide by adopting DEAE Sepharose FastFlow, eluting by using ultrapure water, concentrating and freeze-drying an eluant to obtain a neutral polysaccharide DF-1, eluting by using gradient NaCl, and concentrating, dialyzing, concentrating and freeze-drying the eluant to obtain a weakly acidic polysaccharide; (3) purifying the neutral polysaccharide DF-1 obtained from the step (2) by adopting a Sephacryl S-400 High Reslution preparation chromatographic column, eluting by using ultrapure water, concentrating and freeze-drying the eluant to obtain neutral polysaccharides SF-1 and SF-2. Compared with a crude drug APS, the FAPS (Fermented Astragalus Polysaccharide) extracted by applying the extraction and purification method provided by the invention is outstandingly increased in yield and content.

The invention relates to veterinary herbal medicine capable of increasing the egg yield of laying hens. The veterinary herbal medicine is prepared from, by weight, 6-12 parts of codonopsis pilosula, 6-12 parts of astragalus membranaceus, 6-12 parts of herba epimedii, 15-36 parts of folium artemisiae argyi, 15-36 parts of leonurus, 15-36 parts of hawthorn fruit, 15-24 parts of euphorbia humifusa, 15-24 parts of fructus psoraleae, 30-60 parts of pine needles, 15-24 parts of rhizoma atractylodis, 6-12 parts of angelica sinensis, 15-36 parts of houttuynia cordata, 15-36 parts of malt, 6-15 parts of poria cocos, 6-15 parts of rhizome atractylodis macrocephalae, 6-15 parts of cistanche, 6-12 parts of salviae miltiorrhizae, 6-12 parts of silkworm excrement and 15-36 parts of pericarpium citri reticulatae. By invigorating spleen-stomach, replenishing qi, tonifying spleen, reinforcing kidney and invigorating blood circulation, the productivity of laying eggs is improved, egg quality is improved, disease resistance is improved, and feed return rate is increased. Meanwhile, the veterinary herbal medicine can be used for preventing and treating the egg drop syndrome, laying drop caused by unknown reasons, and no laying peak or laying lingering without increase of laying hens, and has a remarkable effect on recovery of the egg laying rate of sick hens after rehabilitation.

The invention discloses a cultivation method for improving the quality of astragalus. The cultivation method includes performing light quality processing on 3-6 perennial astragalus on the basis of semi-wild cultivation management for conventional artificial seed sowing assisted reproduction and growth; constructing film supports in astragalus fields when the heights of growing plants reach 30cm from the last third of May to the beginning of June in a growing period; covering the astragalus by blue films for a growing season until leaves of the astragalus fall; conventionally managing the fields until the astragalus is harvested. The wavelength of blue light of the blue films ranges from 400nm to 450nm, the wave crest of the blue light is 420nm, and the light transmittance of the blue films is 85%. The cultivation method has the advantages that the cultivation method is simple, and the investment cost is low; the accumulation of flavone in roots of the astragalus is increased by 15% after the blue films cover the astragalus and the astragalus is processed as compared with a natural light condition on the premise that the dry weights of the roots of the astragalus are not obviously changed, the accumulation of saponin in the roots of the astragalus is increased by 6.5%, accordingly, the quality of the astragalus is obviously improved, and an input-output ratio of the cultivation method reaches 4.5 times at least.

The invention discloses a method for increasing polysaccharide content of morel submerged fermentation mycelium through astragalus extract solution. The method is characterized in that the astragalus extract solution is added to morel submerged fermentation culture solution to promote the growth of morel mycelium so as to increase the morel polysaccharide content. According to the method, active ingredients (alkaloid, saponin, flavones and the like) of astragalus can promote or inhibit the growth of medical fungal mycelium and the growth of metabolite.

The invention provides an anti-bacterial, health-caring and skin-beautifying viscose fiber and a preparation method thereof. The viscose fiber includes an anti-bacterial, health-caring and skin-beautifying agent composition including, by weight, 40-50% of apocynum venetum leaves, 30-40% of fructus forsythia and 20-30% of astragalus membranaceus. The preparation method includes the steps of 1) preparing an anti-bacterial, health-caring and skin-beautifying agent solution; 2) preparing a mixture liquid of the anti-bacterial, health-caring and skin-beautifying agent solution and a dispersing agent; 3) preparing the viscose; 4) preparing an anti-bacterial, health-caring and skin-beautifying blended viscose spinning liquid; 5) spinning the anti-bacterial, health-caring and skin-beautifying viscose fiber; and 6) performing after treatment The anti-bacterial, health-caring and skin-beautifying viscose fiber is free of side effect on human body. The fiber is suitable for produce knitted underwear, other clothes and bedding textiles, is wide in available range and has huge economical and social benefit. A blanching process is omitted in the after treatment in the preparation method, so that environment pollution is reduced.

The invention discloses bacillus velezensis as well as application and a preparation thereof. The preservation number of the bacillus velezensis in China Center for Type Culture Collection is CCTCC No:M2020218. The strain can effectively inhibit germination of pathogenic bacteria F.tricinctum spores, and the bacillus velezensis, fermentation liquor and / or metabolite have / has a remarkable effect inpreventing and treating astragalus root rot and promoting growth.

The invention discloses a preparation method of a Cynoglossus semilaevis vibrio anguillarum vaccine, which is characterized in that Cynoglossus semilaevis pathogeny Listonella anguillarum BH1 serves as an immunogen, and Astragalus mongholicus lixivium serves as an adjuvant. The preparation method comprises the following steps: inoculating the Cynoglossus semilaevis pathogeny Listonella anguillarum BH1 bacterial strain on a common nutrient broth culture medium; after the bacterial strain is cultured, inactivating by formaldehyde to obtain inactivated bacteria; after dipping the Astragalus mongholicus with distilled water, decocting, and filtering; condensing until the final concentration is 1g of raw drug per ml, and obtaining the Astragalus mongholicus lixivium; and mixing the inactivatedbacteria with the Astragalus mongholicus lixivium to obtain the Cynoglossus semilaevis Vibrio anguillarum vaccine. When the vaccine prepared with the method disclosed by the invention is used for immunizing Cynoglossus semilaevis, the capability of the Cynoglossus semilaevis on resisting Vibrio anguillarum infection can be obviously improved, Vibrio anguillarum infection during the culture production of the Cynoglossus semilaevis can be effectively prevented, the death rate of the Cynoglossus semilaevis is reduced, the culture yield of the Cynoglossus semilaevis is improved, the Cynoglossus semilaevis culture production is guaranteed to healthily and sustainably develop, and the economic benefit for Cynoglossus semilaevis culture production is improved.

The invention discloses an unguent for treating rheumatic arthritis. The unguent comprises the following raw materials in parts by weight: 20-30 parts of ephedra, 20-30 parts of gingko root, 10-20 parts of corydalis tuber, 10-20 parts of medicinal cyathula root, 10-12 parts of radix angelicae pubescentis, 10-20 parts of herba epimedii, 15-20 parts of anisetree bark, 10-15 parts of teasel root, 8-10 parts of caulis sinomenii, 10-14 parts of radix rehmanniae preparata, 6-10 parts of rhizoma curculiginis, 10-18 parts of notopterygium root, 10-13 parts of sichuan lovage rhizome, 7-10 parts of Rhizoma Atractylodis Macrocephalae, 20-30 parts of prepared nux vomica, 10-15 parts of dried body of ground beetle, 10-20 parts of Paniculate Swallowwort Root, 10-20 parts of Astragalus membranaceus, 10-20 parts of gallnut, 6-10 parts of Filliform Cassytha Herbe and 8-10 parts of loose knot. The unguent disclosed by the invention has the functions of promoting blood circulation to remove meridian obstruction, dispelling wind, eliminating dampness, eliminating cold to stop pain and the like, mainly used for treating rheumatic diseases such as rheumatic, rheumatoid and rheumatic migraine, can effectively alleviate oppression of nerve endings and eliminate aseptic inflammation, and meanwhile has good curative effect on weakness, inhibited bending and stretching and the like.

The invention discloses an agent used for preventing and treating powdery mildew of impatiens balsamina L. The agent comprises the following components in parts by weight: 16-26 parts of dimethirimol, 20-24 parts of 60% chlorothalonil, 5-9 parts of sulfate, 3-8 parts of polyoxyethylene alkyl ether, 4-6 parts of casein, 3-7 parts of diethylaminoethyl hexanoate, 10-14 parts of ethanol, 2-3 parts of astragalus polysaccharide, 4-8 parts of tripterygium wilfordii powder, 4-7 parts of citric acid, 4-8 parts of fructus quisqualis powder and 40-50 parts of water. An application method of the agent is characterized by comprising the steps of preparing the components in proportion, mixing the components and stirring the components uniformly, thus obtaining the agent for prevention and treatment; and then spraying the agent for prevention and treatment around affected plants after diluting the agent for prevention and treatment. The agent has good prevention effects, is convenient to use and is beneficial to reduction of the dosages of pesticides, reduction of environmental pollution and ecological balance.

The invention relates to a veterinary Chinese medicinal composition for improving growth performance and enhancing nonspecific immunologic function of an organism. The composition is prepared from root of Chinese pulsatilla, astragalus, bighead atractylodes rhizome, isatis root, baikal skullcap root, root of Chinese thorowax and rhubarb serving as raw materials. The invention also relates to a veterinary medicament prepared from the veterinary Chinese medicinal composition, a preparation method for the veterinary medicament and application of the veterinary Chinese medicinal composition. The veterinary Chinese medicinal composition of the invention has the effects of strengthening the body resistance to eliminate pathogenic factors, clearing away heat and toxic material and enhancing the nonspecific immunologic function of the organism, and can treat various atypical disease symptoms caused by low immunologic function of the organism, immunologic tolerance, endogenous toxin, stress and the like, the reduction in the growth performance and damp-heat disease symptoms such as wind-heat type cold, flu, bursa of fabricius, intestinal disease syndromes and the like.

The invention discloses an astragalus polysaccharide sustained release microsphere for treating radiation pneumonitis. The astragalus polysaccharide sustained release microsphere comprises the following components in parts by weight: 1 part of astragalus polysaccharide and 3-7 parts of chitosan, wherein the degree of polymerization of chitosan is 30CPS, 50CPS and 130 CPS. The invention simultaneously discloses a preparation method of the astragalus polysaccharide sustained release microsphere. The astragalus polysaccharide sustained release microsphere prepared by virtue of the preparation method has an ideal targeting effect, can slowly release after being administrated, is long in action time and is capable of increasing the concentration of astragalus polysaccharide in target organs, and the high local blood concentration is avoided; the astragalus polysaccharide sustained release microsphere is safe and environmentally friendly and has high treatment effect to radiation pneumonitis and little side effect; the operation is simple and convenient, a process is stable, and industrial production is easily realized; the astragalus polysaccharide sustained release microsphere is high in encapsulation efficiency and drug loading capacity; the skin of a patient is smooth and fine after the administration.

The invention relates to a novel feed additive which contains lysozyme, astragalus polysaccharide and a carrier, wherein the weight ratio of the lysozyme, the astragalus polysaccharide and the carrier is 1:(4-20):(29-45). The novel feed additive disclosed by the invention is prepared by compounding the lysozyme and the astragalus polysaccharide for the first time, has and is increased in the advantages of both astragalus polysaccharide and lysozyme, achieves the effect better than the effect obtained by independently adding the astragalus polysaccharide and the lysozyme, can remarkably promote the weight gain, improve the feed conversion ratio and enhance the immunity and the disease resistance, has multiple effects of treatment, prevention, health care and immunity enhancement, accounts for 0.05%-0.1% of feeds in addition amount in use, can replace antibiotics and has the advantages of wide antibacterial spectrum, remarkable disease-resistant growth-promoting effect, greenness, safety, no drug resistance, no drug residue, simple preparation process and suitability for industrialized production.

The invention discloses a method for preparing a feed raw material by using corn steep liquor as a substrate and fermenting astragalus membranaceus with lactobacillus rhamnosus. The method comprises the steps of (1) adding corn steep liquor to astragalus membranaceus powder to prepare a fermenting culture medium, and sterilizing; (2) inoculating lactobacillus rhamnosus strain seed liquid into the fermenting culture medium, then adding sterile water until reaching 30 to 40% of water content in a fermenting system, uniformly mixing, and fermenting in an anaerobic condition; (3) drying the fermenting product to obtain the feed raw material. According to the method, the corn steep liquor that is the industrial byproduct is used for providing a nitrogen source and a carbon source to lactobacillus rhamnosus, so that the rough protein content in the fermenting product can be increased, and the production cost can be increased; in addition, the lactobacillus rhamnosus is used for fermenting astragalus membranaceus, so that the traditional physical chemical method for extracting astragalus polysaccharide and astragaloside can be replaced, and as a result, the contents of astragalus polysaccharide and astragaloside in the fermenting product can be increased, and the problem of environmental pollution caused by the extraction of the physical chemical method can be avoided.

The invention discloses powder for treating cervical spondylosis, intervertebral disc herniation, ankylosing spondylitis and hyperosteogeny, and belongs to the field of Chinese medicines. The powder consists of the following components: common monkshood mother root, kusnezoff monkshood root, frankincense, myrrh, aconitum pendulum busch, divaricate saposhnikovia root, yellowmouth dutchmanspipe root, spreading hedyotis herb, long-noded pit viper, pangolin scales, centipede, astragalus, wooly datchmanspipe herb, mulberry twig, white mulberry root-bark, east Asian tree fern rhizome, dragon's blood, pyrite, clematis root and liquoric root. A preparation method for the powder comprises the following steps of: crushing the medicaments into superfine powder, bagging, and soaking in distilled spirit. When the powder is used, a Chinese medicinal bag is applied to wounds and is covered by a plastic film to be sealed and fixed, and is replaced after 24 hours. The powder has the effects of softening hardness to dissipate stagnation, promoting blood circulation and removing blood stasis, dispelling wind and eliminating cold, relieving swelling and pain, drawing out pus and promoting tissue regeneration and removing obstruction in channels to relieve pain, the effective rate is 95 percent, and the cure rate is 90 percent.

The invention discloses a Chinese veterinary medicine composition for improving the anti-infection ability of an animal, an application and a preparation method thereof. Raw medicinal materials consist of Astragalus membranaceus, Fructus Ligustri Lucidi, Scutellaria baicalensis and honeysuckle, and the weight proportion of Astragalus membranaceus, Fructus Ligustri Lucidi, Scutellaria baicalensis to honeysuckle is (1 to 2):(1 to 2):(0.5 to 1):(0.5 to 1), wherein the weight proportion of Astragalus membranaceus is greater than or equal to that of Astragalus membranaceus; after an appropriate amount of the raw medicinal materials are taken and uniformly mixed, the raw medicinal materials are smashed into 80 meshes by using an universal pulverizer to obtain coarse powder of the raw medicinal materials, so that the water content of the mixed coarse powder of the raw medicinal materials is controlled between 6% and 8%; then the coarse powder of the raw medicinal materials is smashed until the particle sizes of the medicinal materials are 100-800 meshes at the temperature of minus 10 to minus 20 DEG C by using an ultrafine grinder. The composition has the effects of reinforcing Qi and nourishing Yin and clearing away heat and toxic materials, can improve the anti-infection ability of the animal, and has excellent curative effect for immunosuppressive diseases; by using a superfine grinding technology, Chinese veterinary medicine composition increases the dissolution of effective components, and is also beneficial for drinking water medicine administration in veterinary clinic; the production method is simple and environment-friendly, and the pesticide effect quality is reliable.

The invention provides a purpose of astragalus membranaceus for regulating intestinal tract microorganisms, and application of the astragalus membranaceus in preparation of medicines. The medicine isused for treating diseases related to intestinal tract flora disturbance.

The invention provides a pig injection liquid containing astragalus polysaccharide iron. The injection liquid comprises, by weight parts, 10-50 parts of astragalus polysaccharide and 15-30 parts of iron salt. The invention further relates to a method for preparing the pig injection liquid containing the astragalus polysaccharide iron. The method comprises the steps of astragalus polysaccharide extraction and purification, polysaccharide iron preparation and preparation of a finished injection liquid production. An ion exchange resin method is adopted to catalyze astragalus polysaccharide and iron, and the method is novel in process and low in cost; an ultrafiltration membrane filtration technology is further adopted to separate and purify astragalus polysaccharide, filtration through a centrifuge is performed one time before ultrafiltration membrane filtration is performed, activated carbon is added when the centrifuge is used to perform filtration, not only is decoloration achieved, but also whether centrifugation needs to performed once again to remove large impurities capable of been seen by naked eyes can be determined according to the judgment after the decoloration, the purity of the purified astragalus polysaccharide is guaranteed, and not only is an iron supply function achieved, but also an effect of enhancing piglet immunity is achieved.

The invention provides an astragalus polyose pellet preparation composed of astragalus polyose and medical supplementary materials. The astragalus polyose pellet preparation is characterized in that the medical supplementary materials are excipients and binders; and in the pellet preparation, the content of astragalus polyose 0.5-70 percent by weight, the content of excipients is 30-99.5 percent by weight, and the content of binders is 1-5 percent by weight. The pellet preparation has high dissolution rate and high bioavailability, and the preparation method is simple, convenient and easy for operation.

The invention discloses a veterinary antivirus composition, freeze-dried powder, a preparation method and applications of the composition, and belongs to the technical field of veterinary feed additive. The veterinary antivirus composition is mainly composed of the following components in parts by weight: 85 to 100 parts of veterinary antivirus yolk antibody, 1 to 5 parts of veterinary antivirus transfer factor, and 1 to 5 parts of alpha-interferon; and preferably also comprises the following components in parts by weight: 5 to 10 parts of astragalus polysaccharide, 5 to 10 parts of angelica polysaccharide, 10 to 20 parts of wolfberry polysaccharide, and 10 to 30 parts of licorice polysaccharide. The veterinary antivirus yolk antibody, veterinary antivirus transfer factor, alpha-interferon, astragalus polysaccharide, angelica polysaccharide, wolfberry polysaccharide, and licorice polysaccharide are co-used, and thus the composition has the advantages of strong pertinency, high antibody titer, and good bio-activity, is capable of improving the organism immunity and disease preventing ability, and effectively prevents the animal viral diseases.