90 results about "Fraxinus" patented technology

The invention discloses a micropropagation method of fraxinus rhynchophylla and relates to the micropropagation method. The problems of long reproductive cycle, low reproduction efficiency and poor offspring genetic stability in nursery stock propagation of fraxinus rhynchophylla are solved. The method comprises the following steps of: 1, sterilizing fraxinus rhynchophylla seeds, and culturing single cotyledons of zygotic embryos to obtain cotyledonal cell embryos; 2, performing maturation cultivation on the cotyledonal cell embryos; 3, performing sprouting cultivation on the cotyledonal cellembryos subjected to maturation cultivation to obtain regenerated plants; and 4, transplanting the regenerated plants into a culture medium to culture until new leaves are completely unfolded, and removing a covered plastic thin film. The micropropagation method has the advantages of short nursery stock reproductive cycle, high reproductive rate (culturing for 60 to 70 days) and high reproductionefficiency (each explant can generate 15 to 20 somatic embryos); the germination rate of the somatic embryos is up to 87 to 89.55 percent; the transplanting survival rate of the regenerated plants isup to 75 to 80 percent; and the regeneration plants with the same good characteristics as female parents can be generated in mass.

The present invention provides a new application of Fraxinus general counmarin and aesculetin as the extractives of Chinese medicine material cortex Fraxini. The said two has obvious effects of stopping pain, resisting inflammation and reducing blood uric acid. They has obvious curative effect on acute and chronic gout and no obvious toxic side-effect. The present invention also provides a simple preparation process of Fraxinus general coumarin, and that is a Fraxinus general coumarin concentrating and purifying process.

The invention discloses an oral administration pharmaceutical composition for treating bacillary dysentery, which is prepared from Chinese pulsatilla root, goldthread root, corktree bark, fraxinus rhynchophylla hance, honeysuckle flower, radix paeoniae rubrathe, baikal skullcap root, garden burnet root, basket fern, hibiscus flower, black plum and hairy vein agrimony. The medicament should be decocted in water for the oral dose.

The invention relates to a method for extracting and preparing a blood-sugar-reducing substance from the seeds of Fraxinus rhynchophylla Hance. The method comprises the following concrete steps: crushing the seeds of Fraxinus rhynchophylla Hance and subjecting the crushed seeds to percolation and extraction with 75% ethanol twice so as to obtain a 75% ethanol extraction solution, wherein the seeds are soaked for three days in each percolation and extraction; carrying out micro-membrane filtration on the 75% ethanol extraction solution and then carrying out HPLC detection; and concentrating 75% ethanol extraction liquid so as to obtain extract, dispersing the extract with water, carrying out extraction with petroleum ether, concentrating a petroleum ether layer solution so as to obtain another extract, laying the extract aside, extracting a water layer with ethyl acetate, concentrating an ethyl acetate layer so as to obtain another extract, carrying out petroleum ether-acetone gradient elution, wherein TLC detection and analysis are cooperatively carried out in the process of elution, flushing a column with ethanol, combining eluate of a same part and carrying out respective drying by distillation so as to obtain separated compounds, wherein the separated compounds include secoiridoid glucoside compounds. The method provided by the invention has high extraction rates of components in the seeds of Fraxinus rhynchophylla Hance and can effectively extract the secoiridoid glucoside compounds capable of reducing blood sugar.

The invention relates to the technical field of wood product processing and manufacturing, and discloses a method for eliminating deformation of fraxinus mandshurica wood. The method comprises the following steps that (1) the newly-cut fraxinus mandshurica wood is dried to constant weight, the internal moisture is removed, then impregnation liquid is used to conduct soaking treatment, the problem that the internal fiber structure is greatly affected by temperature changes is solved, on the one hand, kinetic energy of molecular motion is decreased, and on the other hand, the problem of wood instability caused by external force is solved, and the mechanical property is improved; (2) the wood is put into a pressure tank, mixed resin is utilized to conduct soaking processing for the wood under pressure, the surface wetting and infiltration uniformity are improved, and force strength and bearing uniformity of the wood are improved; and (3) under pressing and infiltration, the permeability of the resin is further enhanced. The wood obtained by drying has high waterproofness and yielding resistance, and the problem that existing fraxinus mandshurica wood is prone to deform is solved.

The invention relates to the technical field of electrotechnical porcelain production, and discloses a preparation method of a material for an electrical porcelain body, and the electrical porcelain body. The preparation method comprises the following steps: a, taking 10-15 parts of Faku (Chinese county) soil, 20-22 parts of fraxinus mandshurica soil, 40-50 parts of high-aluminum powder, 4-6 parts of Kuancheng (Chinese county) soil, 5-7 parts of Zuoyun (Chinese county) soil, 8-12 parts of feldspar powder and 1-2 parts of bentonite according to the weight ratio; b, adding 180-200 parts of water to a mixture in the step a and grinding; and c, filtering the materials by a 200-325mesh sieve after grinding until the screen residue is smaller than 1%. The electrical porcelain body is a porcelain body prepared from the slurry prepared by using the method in manners of molding and sintering. The electrotechnical porcelain produced by the preparation method of the material for the electrical porcelain body has the advantages of low wind convulsion rate, low water absorption and low cost. The electrical porcelain body has the advantages of low water absorption and low cost.

The invention discloses a method for improving the synchronization of the development of the somatic embryos of fraxinus mandshurica, which relates to a method for improving the synchronization of the development of somatic embryos. The method solves the problems of the prior technology for the development of the somatic embryos of the fraxinus mandshurica, such as asynchronous development of the somatic embryos, low survival rate of somatic embryo regeneration plants caused by low somatic embryo development consistency, and high somatic embryo abnormal rate caused by chemical regulation. The method comprises the following steps that: I) explants are inoculated in a somatic embryo inductive culture medium to be cultured to form spherical somatic embryos; II) the spherical somatic embryos are inoculated in a synchronization regulating culture medium to be cultured to form mature somatic embryos; and III) the mature somatic embryos are inoculated in a germination culture medium after being dried to be cultured to form fraxinus mandshurica plantlets, and thus the improvement in the synchronization of the development of the somatic embryos of the fraxinus mandshurica is completed. The method realizes the physical regulation of the synchronous development of the somatic embryos of the fraxinus mandshurica, reduces the somatic embryo abnormal rate to less than 50 percent, and improves the somatic embryo development consistency to more than 80 percent and the survival rate to 64 to 81 percent.

The invention belongs to the technical field of wood drying, and particularly relates to a drying method for preventing fraxinus mandshurica from cracking. The drying method specifically comprises thefollowing steps of soaking in a sodium chloride solution, and then freezing, so that hemicellulose is effectively promoted to generate polyreaction so as to generate water-insoluble polymer, therebyreducing the hygroscopicity of fraxinus mandshurica and inhibiting air shrinkage of the fraxinus mandshurica; performing vapor treatment, and then soaking in a treating agent, so that three componentsincluding cellulose, hemicellulose and lignin are effectively promoted to degrade and recombine, and the degree of crystallinity is reduced, thereby releasing the shrinkage stress generated in the treatment process of the fraxinus mandshurica, so that the temperature of water in the fraxinus mandshurica is increased, the internal energy of water molecules is increased, the activity is enhanced, and the binding strength between structural components of the fraxinus mandshurica is reduced, thereby softening the fraxinus mandshurica, reducing the deformation resistance of the fraxinus mandshurica, reducing the shrinkage stress and reducing the cracking possibility; and performing vacuum treatment, and then freeze-drying, so that the shrinkage of the fraxinus mandshurica and the hydrophobicity due to filling of cell cavities are restricted, the anti-shrinkage efficiency of the fraxinus mandshurica is improved, the fraxinus mandshurica is effectively prevented from cracking and warping, and the dimensional stability of the fraxinus mandshurica is increased.

The invention discloses an SSR molecular marker for the salt tolerance of Fraxinus velutina. Primers of loci of the SSR molecular marker for the salt tolerance of Fraxinus velutina include the primer S78 and the primer S95. The SSR molecular marker is expected to become a standard primer for identifying the salt tolerance of Fraxinus, and the accurate molecular marker is provided for rapid identification of salt-tolerant germplasm of Fraxinus and salt-tolerant breeding of Fraxinus. By means of the SSR molecular marker, the purpose of identifying salt-tolerant Fraxinus and salt-sensitive Fraxinus from the perspective of molecules is achieved, and a reference and a basis are provided for research such as salt tolerance molecular identification of Fraxinus.

The invention discloses a preparation process of a composite ceramic insulator. The preparation process comprises the following steps: S1, preparing the following raw materials: 20-30 parts of Zhongxiang soil, 20-40 parts of fraxinus mandshurica wood, 20-40 parts of Qingcaoling soil, 20-30 parts of Jiexiu soil, 20-30 parts of kaolin, 20-30 parts of bauxite, 5-10 parts of mullite, 10-15 parts of feldspar, 20-30 parts of a boron-free high-strength glass fiber, 18-25 parts of an epoxy resin, 3-5 parts of a flame retardant, 10-15 parts of nylon, 10-15 parts of quartz sand, 1-3 parts of a demoldingthermoplastic material, 3-5 parts of a curing agent and 10-15 parts of an ultralow temperature adhesive. The preparation process is smart in design, and by adopting the preparation process of the product, the mechanical strength of a ceramic material is greatly improved; due to dehydration operation in the step S5, the compactness of a soil cake is ensured, and the soil cake can be well shaped; due to polishing of a polishing machine in the step S12, the smoothness of a ceramic part can be ensured, a macromolecule self-cleaning coating can be conveniently sprayed, then the service life of theceramic part can be ensured, the service life of the macromolecule self-cleaning coating can be ensured, and the security properties of the ceramic part can be also ensured.

The invention relates to a processing method for wood processing in furniture industry, in particular to a fraxinus mandshurica wood surface brushing filling process and a fraxinus mandshurica wood surface brushing filling method. The process and the method sequentially comprise the following steps of: a, sanding the surface of a fraxinus mandshurica solid wood plate with sanding paper; b, uniformly stirring a color concentrate, a filling agent and a thinner into a coloring agent according to proportion; c, dipping a little coloring agent on a brush, and uniformly coating the coloring agent onto the surface of wood along the wood grain direction; d, uniformly wiping the coloring agent on the surface of the wood with a fabric; e, repeating the operation until the color of a workpiece is uniform; and f, wiping the residual coloring agent with the fabric. The filling agent is coated on the surface of the wood and can be used for filling palm holes of the wood, so the surface of the wood is flat; and filling is performed before paint spraying, so the amount of paint penetrating into the wood can be reduced, the using amount of the paint is saved, and a surface paint film formed after paint spraying is ensured to be flat and smooth.

The invention provides facial cream. According to the facial cream, 0.1%-1.0% of tocopheryl acetate, 0.5%-5.5% of simmondsia californica seed oil, 0.1%-5.0% of acmella oleracea extract, 2.0%-5.0% of butanediol, 0.1%-4.0% of nicotinamide, 0.1%-5.0% of fraxinus excelsior bark extract, 0.01%-0.1% of potassium citrate, 0.1%-5.0% of oat kernel extract, 0.01%-5.0% of roe extract and 0.01%-5.0% of hydrolyzed soybean protein are added according to the component ratios; and the plant extracts (including the fraxinus excelsior bark extract, the acmella oleracea extract and the oat kernel extract) are used as the components and have the effects of maintaining moisture and moisturizing and regaining the moisture of skin.

Belonging to the technical field of cell engineering, the invention in particular relates to an establishment method for a Fraxinus rhynchophylla Hance. callus mass suspension culture system. The method includes: taking excellent Fraxinus rhynchophylla Hance. stems and leaves as raw materials, inducing calluses on a WPM solid medium added with hormone NAA and TDZ, and inoculating the calluses into a WPM liquid medium added with hormone NAA and TDZ to undergo illumination shaking culture. After multi-generation directional induction domestication, the callus mass suspension system characterized by stable growth, rapid proliferation and uniform mass can be established. The method provided by the invention has the characteristics of simplicity and practicability, strong operability and considerable proliferation coefficient, and can promote rapid propagation of Fraxinus rhynchophylla Hance.

The invention discloses fraxinus mandshurica extract for treating rheumatoid arthritis and belongs to the technical field of traditional Chinese medicines. The fraxinus mandshurica extract comprises the following compounds in percentage by weight: 50%-95% of fraxinol glucoside, 2%-15% of fraxin, 0.1%-1% of isoscopolin and 0.1%-1% of isofraxidin-beta-D-glucoside. The fraxinus mandshurica extract has the beneficial effects of being low in toxicity, safe and reliable in comparison with chemical medicines such as hormones and the like while being applied to the medicine for treating rheumatoid arthritis; moreover, the fraxinus mandshurica leaf resources are abundant, the waste material is changed into things of value and the extraction process is simple; the fraxinus mandshurica extract and pharmaceutically acceptable excipients or auxiliaries materials can be used for preparing a medical composition; and the medical composition can be prepared into various dosage forms such as gastrointestinal tract dosage forms consisting of tablets, pills, capsules, particles, tinctures and oral liquid as well as gastrointestinal tract external dosage forms consisting of injections, external-use preparations and the like by adopting the conventional method of the galenic pharmacy.

The invention provides application of fraxin in preparation of drugs for preventing or treating an acute respiratory distress syndrome (ARDS). The fraxin is a coumarins compound which is extracted from dry barks of oleaceae fraxinus chinensis, Fraxinus szaboana Lingelsh or Fraxinus stylosa Lingelsh. Existing researches show that the fraxin has effects of resisting inflammation, reducing blood uricacid, resisting bacteria and inducing diuresis. On the basis of constructing an anima damage model of acute respiratory distress syndrome, by HE, Evan blue staining, fluorescence probes, immunofluorescent labeling, western blotting and the like, it verifies that the fraxin can reduce generation and releasing of reactive oxygen (ROS), inhibit generation and releasing of inflammatory factors and inhibit activation of signal paths MAPKs, therefore, degradation of a blood vessel endothelial polysaccharide coating is relieved, and vascular permeability is relieved to prevent or treat ARDS.

The invention discloses a medicament for treating pigling dysentery, which is prepared from fraxinus rhynchophylla hance and Chinese pink herb by a finite weight proportion. It can be prepared into any of the conventional oral administration dosages.

The invention provides a method for drying a fraxinus mandshurica wood floor base material, which comprises the following steps of placing the fraxinus mandshurica wood floor base material in a drying kiln, enabling the temperature to rise to 50-56 DEG C at the speed of 0.8-1.6 DEG C per hour, and keeping the temperature for 7.5-8 hours; spraying steam at the temperature of 120-180 DEG C into the drying kiln, enabling air velocity of the steam to be 6-12m/s, enabling the temperature to rise to 60 DEG C, and enabling the relative humidify to rise to 60%-65%; keeping the temperature of 60 DEG C in the drying kiln to be stable, removing moisture for 6-7days and evenly reducing the relative humidify by 3-10%; detecting the water content of the fraxinus mandshurica wood floor base material, adding the steam into the drying kiln until the relative humidify rises to 60%-65% when the water content stops reducing, and then keeping the temperature and the relative humidity for 3-4 days; and repeating the former two steps until the water content of the fraxinus mandshurica wood floor base material reaches to an acceptance line. The method has good drying effects, high rate of finished products and low defective percentage.

The invention discloses a wooden composite door preparation method, wherein Fraxinus mandshurica Rupr, a walnut wood-plastic composite sheet material, Ormosia henryi, a cherrywood wood-plastic composite sheet material and oak are sequentially subjected to glue coating stacking pressing, and the obtained material is coated with an inner layer coating material and an outer layer coating material toprepare the wooden composite door. According to the present invention, the prepared wooden composite door does not contain formaldehyde; and compared with the conventional composite door, the preparedwooden composite door of the present invention has the following characteristics that the tensile strength is increased by 50-70%, the flexural strength is increased by 40-50%, the flexural modulus is increased by 45-55%, the bearing force is increased by 40-60%, the high-low temperature notched impact strength is increased by 50-60%, the oxygen index is increased by 40-50%, the heat distortion temperature is increased by 25-35%, the two-way anti-warping ability is high, the sound absorption effect is good, the sound insulation performance is good, the heat absorption effect is good, the overall mass is reduced by 15-25%, the toughness is good, the mechanical property is good, the bending stress is high, the internal stress is low, the insect control effect is good, the bidirectional drydeformation is low, the elongation at break is increased by 5-25%, insect pests are avoided, and the product further has advantages of corrosion resistance, moisture resistance, high hardness and goodcold resistance.

The present invention provides a method of performing original soil greening on sulfate-containing sandy soil by using vermiculite-containing nutrient soil, comprising a nutrient soil applying step. The nutrient soil applying step comprises applying the nutrient soil, and the nutrient soil comprises the following components of lateritic soil, vermiculite powder, broad-leaved tree deciduous leaf soil, NPK compound fertilizer, limonite, rose-boot extract, furi acid, akebia stem root powder, corncob powder, brown bean pulp, yellow serofluid, carp powder, decomposed pigeon excrement, water-retaining agent and trace elements. The present invention also provides a preparation method of the nutrient soil. According to the plantation method, the expense of carrying new soil is saved, the cost is reduced, the expense is saved by 36%, and the effects of reducing content of free ions in the soil and increasing dealkalization rate of the soil is achieved. The leaf transpiration rate of planted fraxinus is 3.7-6.4 [mu]mol/(m2.s).