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90 results about "Fraxinus" patented technology
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Fraxinus /ˈfræksɪnəs/, English name ash, is a genus of flowering plants in the olive and lilac family, Oleaceae. It contains 45–65 species of usually medium to large trees, mostly deciduous, though a few subtropical species are evergreen. The genus is widespread across much of Europe, Asia, and North America.
Micropropagation method of fraxinus rhynchophylla
InactiveCN102228001AImprove proliferation efficiencyRealize automated productionHorticulture methodsPlant tissue cultureFraxinusCotyledon plant
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.
Owner:NORTHEAST FORESTRY UNIVERSITY +2
Prepn and application in preparing medicine of Fraxinus general coumarin
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.
Owner:CHENGDU DIKANG PHARMA INST +1
Yuanla 2 white wax cutting seedling method
InactiveCN102792845ASpeed up breedingShorten the breeding cycleFertilising methodsHorticulture methodsFraxinusShoot
The invention provides a yuanla 2 white wax cutting seedling method. The method comprises the steps of seedling land selection and land preparation, cutting preparation and storage, cutting method and growing period management, wherein the step of cutting preparation and storage comprises shoot selection, cutting preparation and cutting storage; and the cutting method comprises cutting treatment, film mulching and cutting. By adopting the method, the technical problem of fraxinus cutting seedling is thoroughly solved, propagation of fine fraxinus varieties is accelerated, the improved yuanla 2 white wax variety seedling period is shortened and popularization and application of fine varieties are promoted; compared with the traditional grafting seedling methods, the cutting seedling method has the following advantages: the seedling period is shortened and such technical links as stock cultivation and grafting are omitted; and compared with the traditional seedling methods, the cutting seedling method has the following advantages: more nursery stocks can be produced and the economic benefits are extremely obvious.
Owner:李元喜
Medium for rapid breeding and propagation of fraxinus americana tissue culture and application thereof
InactiveCN102197785AReduce manufacturing costIncrease the multiplication factorPlant tissue cultureHorticulture methodsGrowth plantFraxinus
The invention relates to forest tissue culture, and specifically relates to a medium for rapid breeding and propagation of fraxinus americana tissue culture and application thereof. The medium employs an MS or a WPM medium as a minimal medium, and the medium is added with growth augmentors to a final concentration of: CPPU 0.05-0.5mg / L, NAA or IBA 0.1-0.5mg / L, and white granulated sugar 20-40g / L, and a pH of the medium is adjusted to 5.8-5.9. In the invention, plant-growth regulators of CPPU and NAA or IBA are added to the two phase solidified MS or WPM medium, so that the propagation effect on fraxinus americana embryo inducing aseptic seedling stems is substantial. The invention also provides application of the medium in rapid breeding and propagation of fraxinus americana tissue culture, so as to provide a feasible scheme for factory production of fraxinus americana in the future.
Owner:LIAONING FORESTRY SCI RES INST
Method for establishing fraxinus mandshurica suspension culture system
InactiveCN102888379AReduce manufacturing costCan realize industrial productionMicroorganism based processesPlant cellsFraxinusCulture mediums
The invention provides a method for establishing a fraxinus mandshurica suspension culture system. The method comprises the following steps of: 1) using a fraxinus mandshurica stem section as an explant, inducing callus, and obtaining the callus on a WPM solid culture medium added with hormone TDZ and BA, cane sugar and agar; 2) inoculating the callus obtained in the step 1) into the WPM liquid culture medium added with hormone BA and 2, 4-D and cane sugar, and oscillating and culturing; and 3) carrying out subculture for 10-15days, and continuously carrying out subculture for 3-5 times to obtain a suspension cell line which uniformly grows and is rapidly propagated. The method has the characteristics that the propagation speed is high, the culture scale is large and a great amount of uniform plant cell cultures are provided.
Owner:NORTHEAST FORESTRY UNIVERSITY +2
Chinese traditional medicine compound took orally for creating bacterial dysentery
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.
Owner:宋建华
Method for extracting and preparing blood-sugar-reducing substance--secoiridoid glucoside compounds from seeds of Fraxinus rhynchophylla Hance
InactiveCN104758365AHigh extraction rateEfficient extractionMetabolism disorderPlant ingredientsFraxinusFiltration
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.
Owner:NORTHWEST UNIV(CN)
Production method of high-dampproofness medium-density fiber wood floor
InactiveCN109291167AHigh strengthImprove waterproof performanceWood treatment detailsThermal wood treatmentFraxinusWater resistance
The invention discloses a production method of a high-dampproofness medium-density fiber wood floor. The production method comprises the steps of (1) raw material pretreatment, (2) screening, (3) stewing and softening, (4) grinding, (5) gluing and drying, (6) pre-pressing, (7) hot pressing, (8), cooling, sawing and sanding, (9) glue application and veneering hot pressing, and (10) curing and grooving, and obtaining a finished product. Eucalyptus bark, branches and waste leftover materials left by plate manufacturing are utilized as main raw materials, pine, basswood, birch, fraxinus mandshurica, beech, acer mono maxim, lauan and other weedtrees are added, waste is turned into wealth, and wood resources can be fully and effectively utilized; and modified paraffin and a dampproof urea-formaldehyde resin adhesive are added, the dampproofness of the manufactured wood floor is good, the water resisting property is good, the formaldehyde content is low, the compressive strength is high, thefree formaldehyde content meets the relevant standard requirement, and the formaldehyde emission meets the requirement of E1 level in the GB / T 18580 standard.
Owner:广西横州丽冠环保材料有限公司
Method for eliminating deformation of fraxinus mandshurica wood
InactiveCN107127849ASolve the deformationSolve problems that are highly affected by temperature changesWood treatment detailsPretreatment apparatusFraxinusInstability
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.
Owner:FUNAN XINGGUANG ARTS & CRAFTS CO LTD
Preparation method of material for electrical porcelain body and electrical porcelain body
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.
Owner:河南省德立泰高压电瓷电器有限公司
Method for improving Fraxinus mandshurica somatic embryo development synchronization
InactiveCN101503671AAdjustable osmotic pressureAvoid late developmental abnormalitiesPlant cellsFraxinusEmbryo
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.
Owner:NORTHEAST FORESTRY UNIVERSITY +2
Drying method for preventing fraxinus mandshurica from cracking
InactiveCN107553642ALow hygroscopicityInhibit drying shrinkageWood treatment detailsWood impregnation detailsFraxinusWater insoluble
Owner:安徽嘉美工艺品有限公司
Method for rapidly propagating fraxinus mandshurica by utilizing suspension culture technology
InactiveCN105941155ASimple methodShort training periodPlant tissue cultureHorticulture methodsFraxinusMaterial resources
The invention discloses a method for rapidly propagating fraxinus mandshurica by utilizing a suspension culture technology. The method comprises the steps of selecting seeds of the fraxinus mandshurica, soaking the selected seeds into an alcohol solution, washing with sterile water, putting the seeds into a sodium hypochlorite solution for sterilizing, and then washing with the sterile water again; taking out mature embryos, and inoculating into a seed germination medium for culturing; after 7-10 days, transferring into a liquid proliferation medium for culturing for 15-20 days; cutting off lateral buds, and continuously transferring into the liquid proliferation medium for culturing; carrying out acclimation on strong seedlings for a week, and then transplanting into a matrix treated by sterilization until the seedlings survive. The method has the advantages that the practical technological method for inducing the fraxinus mandshurica to rapidly propagate by utilizing the suspension culture method is simple and convenient, a production bottleneck caused by low seed germinate rate is broken, and culture period is shortened, thus improving propagation coefficient, and reducing excessive consumption of manpower and material resources in a tissue culture experiment process; therefore, the working efficiency is fundamentally improved, the production cost is lowered, and the aim of industrialized seedling production is achieved.
Owner:NORTHEAST FORESTRY UNIVERSITY +2
SSR molecular marker for salt tolerance of Fraxinus velutina
ActiveCN105886652AMolecular markers are accurateMicrobiological testing/measurementDNA/RNA fragmentationFraxinusMolecular identification
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.
Owner:SHANDONG FOREST SCI RES INST
Preparation process of composite ceramic insulator
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.
Owner:萍乡市新田电瓷制造有限公司
Fraxinus mandshurica wood surface brushing filling process and method
InactiveCN102514063AStir wellReduces the amount of penetration into the woodWood treatment detailsFraxinusSolid wood
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.
Owner:LANGFANG HUARI FURNITURE CO LTD
Facial cream and preparation method thereof
InactiveCN106074320AMoisturizing and moisturizingImprove microcirculationCosmetic preparationsToilet preparationsTocopheryl acetateNicotinamide
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.
Owner:CHENGDU ROLOR COSMETIC
Establishment method for Fraxinus rhynchophylla Hance. suspension culture system
InactiveCN104094840APromote accumulationHigh dry matter contentPlant tissue cultureHorticulture methodsFraxinusLiquid medium
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.
Owner:NORTHEAST FORESTRY UNIVERSITY +2
Fraxinus mandshurica extract for treating rheumatoid arthritis
InactiveCN103110700AAbundant resourcesLow toxicityOrganic active ingredientsAntipyreticFraxinusGlucoside
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.
Owner:CHANGCHUN UNIV OF SCI & TECH
Application of fraxin in preparation of drugs for preventing or treating acute respiratory distress syndrome
InactiveCN108403708AInhibitionInhibition of activationOrganic active ingredientsRespiratory disorderFraxinusInflammatory factors
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.
Owner:BINZHOU MEDICAL COLLEGE
Processing method for smoking and aging fraxinus spp floor boards
ActiveCN106003345AHigh technology contentEnhance product added valueWood treatment detailsWood heatingFraxinusEngineering
The invention discloses a processing method for smoking and aging fraxinus spp floor boards. Firstly, a freshly felled fraxinus spp log is selected and is cut after bark and impurities are removed, the fraxinus spp log is sawn according to the principle that large defects are avoided and the number of small defects is increased, and fraxinus spp plain-sawn boards with mountain-like grains are obtained; secondly, the fraxinus spp plain-sawn boards are subjected to drying, double-sided fixed-thickness shaving, four-sided planing, double-end milling and the like, the fraxinus spp floor boards are obtained and conveyed into a smoking room, and smoking and aging treatment is started; and finally, hole-filling putty is prepared, holes in the fraxinus spp floor boards are filled up, other defects are overcome, and the yellowing fraxinus spp floor boards looking old in appearance are obtained after sanding and painting procedures. According to the method, the processing technology is simple and feasible, the yellowing fraxinus spp floor boards looking old in appearance are produced through special process treatment on the fraxinus spp low in price and poor in quality, the unique defect aesthetic sentiment of part of clients is satisfied, new materials capable of being used for family floor decoration are produced, and development prospects are wide.
Owner:ZHEJIANG DADONGWU GREENHOME WOOD CO LTD
Preparation method of high-strength bamboo plywood
ActiveCN107344379AGood flexibilityImprove toughnessPressure wood treatmentWood treatment detailsFraxinusCross-link
The invention relates to a preparation method of high-strength bamboo plywood, and belongs to the technical field of preparation of building plates. The preparation method comprises the following steps: lignin rich in methoxy and hydroxy is extracted, and is copolymerized with phenol and formaldehyde to obtain environment-friendly lignin base phenolic resin glue; a fraxinus mandshurica board with better flexibility is used as a middle reinforcing layer of the bamboo plywood; firstly, standing micro-corrosion is performed, so that microholes are formed in the surface of the fraxinus mandshurica board; then, micro-blasting treatment is performed on the micro-corroded board to form a new fluid channel; self-made bamboo board glue is used for dipping the board; the glue is dipped into the microholes in the surface of the board and the fluid channel formed in the internal; a firm anchorage gluing effect is formed by a hot pressing effect; and a physical netty cross-linking effect is formed in the bamboo plywood, so that the mechanical performance of the prepared bamboo plywood is improved. The prepared bamboo plywood prominently improves the mechanical strength and the toughness compared with an agony bamboo plywood, and is broad in application prospect.
Owner:泰州优微轮运动科技有限公司
Medicine for treating piglet yellow dysentery or white dysentery and its preparation method
InactiveCN1546071AAntibacterial and anti-inflammatoryHas analgesiaAntibacterial agentsDigestive systemFraxinusOral medication
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.
Owner:李发明
Method for rapidly identifying Fraxinus velutina and Fraxinus pennsylvanica hybrid by using SSR (simple sequence repeat) marking technology
The invention discloses a method for rapidly identifying a Fraxinus velutina and Fraxinus pennsylvanica hybrid by using SSR (simple sequence repeat) marking technology. Genome DNA of Fraxinus velutina and Fraxinus pennsylvanica parents and their hybrid is used as a template, and an SSR primer is designed by using a constructed Fraxinus velutina transcriptome database; SSR markers with high, stable and clear polymorphism and parent complementary bands are screened out, hybrid plants are identified to obtain a pair of suitable SSR markers, the markers amplify a special band identical with a female parent from hybrid offspring, and hybrids having the female parent special band are true hybrids. The method enables quick and accurate identification for the authenticity of Fraxinus velutina and Fraxinus pennsylvanica hybrids, and good basis is laid for identifying hybrids of different combinations of Fraxinus parents.
Owner:SHANDONG FOREST SCI RES INST
Method for drying fraxinus mandshurica wood floor base material
InactiveCN102494519AEfficient volatilizationReduce distortionDrying solid materials with heatDrying gas arrangementsFraxinusAir velocity
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.
Owner:NINGBO LANDING ELECTRONICS TECH
Wooden composite door preparation method
ActiveCN109263187AHigh hardnessHigh tensile strengthWood veneer joiningConstructions elementsFraxinusFlexural modulus
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.
Owner:NANJING FORESTRY UNIV
Method for preventing fraxinus mandshurica wood from deforming
InactiveCN107745426AReduce instabilityImprove the strength of forceWood treatment detailsReed/straw treatmentFraxinusPolyresin
The invention discloses a method for preventing fraxinus mandshurica wood from deforming. The method for preventing the fraxinus mandshurica wood from deforming is characterized by comprising the following technological steps of (1) primary processing of the fraxinus mandshurica wood; (2) drying; (3) soaking; (4) soaking for another time; (5) resin soaking; and (6) taking out the wood treated in step (5), naturally airing the wood in a shade plate in 12-18 hours and washing away resin on the surface of the wood; and (7) drying the surface of the wood in a drying oven and naturally cooling thewood. By adoption of the method for preventing the fraxinus mandshurica wood from deforming, the cohesive force of the tissue of the fraxinus mandshurica wood is improved, so that the fraxinus mandshurica wood has overall rigidity, and accordingly, the problem that the fraxinus mandshurica wood is prone to deformation is solved.
Owner:湖州南浔雷欧木制品厂
Prepn and application in preparing medicine of Fraxinus general coumarin
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.
Owner:CHENGDU DIKANG PHARMA INST +1
Method of performing original soil greening on sulfate-containing sandy soil by using vermiculite-containing nutrient soil
InactiveCN105935023ALow costReduce Greening CostsAnimal corpse fertilisersExcrement fertilisersFraxinusCarp
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).
Owner:SHANDONG SUNWAY LANDSCAPE TECH
Biomass forming fuel
InactiveCN104449937AExtended burn timeIncrease the calorific value of combustionBiofuelsSolid fuelsFraxinusCombustion
The invention discloses a biomass forming fuel. The biomass forming fuel is prepared from the following components in parts by weight: 3.1 parts of walnut shell, 1.2 parts of robinia pseudoacacia saw dust, 1.8 parts of pine tree saw dust, 2.8 parts of fraxinus mandshurica saw dust, 0.4 part of ammonium dihydrogen phosphate, 1.6 parts of corncob, and 2.2 parts of flax straw powder. The biomass forming fuel has the advantages of being long in combustion time, and obviously high in combustion heat value, combustion rate and heat efficiency.
Owner:CHANGSHU HUAJI BOILER MFG
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