89 results about "Larix gmelini" patented technology

The invention provides a method of extracting dihydroquercetin from eastern larch, this method using water as extractant, extracting xingan eastern larch contains dihydroquercetin, liquid-liquid extracting the produced aquosity extract, adsorption decolouring methyl tert-butyl ether tobacco extract by activated char or active clay, stripping the dissolvant of decolourized methyl tert-butyl ether tobacco extract in vaccum, the grease thing of water stripped is crystallization purified by water and getting rude product of dihydroquercetin. According to need, the getted rude product of dihydroquercetin can be recrystallization purified by water and getting elaboration product of dihydroquercetin. The method of this invention has prominant technique effect, not only the yield is as high as 1.69%-2.0%, but also the getted rude product of dihydroquercetin's purity is as high as 95%-96%, the purified elaboration product of dihydroquercetin can reach the purity of 99%.

The adsorption process of extracting dihydro quercetin from larch includes extracting dihydro quercetin from Xingan larch with water as extractant, decolorizing the extracted liquid with active carbon or activated clay, adsorbing the water soluble extracted liquid with polyamide powder as adsorbent, desorbing with desorbing solvent, eliminating solvent from the stripped liquid in vacuum condition to obtain white or yellowish coarse dihydro quercetin powder product. The coarse dihydro quercetin powder product may be recrystallized in water to purify, so as to obtain refined dihydro quercetin product. The process has the obvious technological effects of dihydro quercetin yield near 1.0 % and dihydro quercetin purity up to 98 %.

The invention discloses a method for preparing honeycomb-type multiporous foam carbon with the high specific surface area from larix gmelini sawdust. The method is characterized by comprising the steps of heating for liquefying the larix gmelini sawdust as the raw material through phenol, and heating for carbonizing to prepare the honeycomb-type multiporous foam carbon, wherein thermosetting resin which is synthesized by a liquefied object serves as a precursor, PEG2000 serves as a pore forming substance, n-pentane serves as a foaming agent and concentrated sulfuric acid serves as a curing agent under the protection of N2; the apparent density of the prepared foam carbon is 0.020-0.035g/cm<3>; the specific surface area is 1,580.97m<2>/g; the pore volume is 0.885cm<3>/g; the average aperature is 2.1-2.5nm. The operation technology has the main characteristics that raw materials are environmentally-friendly, low in cost and readily available; the foam carbon is not activated, so that the large pore volume and the large specific surface area can be realized, and a complete honeycomb-type structure and an ordered microporous structure can be formed; and therefore, the foam carbon can be recycled under high intensity, and small circular holes with the aperture of about 1.0-1.5 microns are uniformly distributed in tough bands and porous walls, so that gas and liquid can enter the foam carbon; due to the large specific surface area and the large pore volume, the honeycomb-type multiporous foam carbon can be used as a novel adsorption material with a specific function.

The invention discloses a technique which prepares high-purity arabogalactan from a dahuricia larch. The arabogalactan has effects of obvious increase of boy immunity, tumor resistance, mutation resistance, reduction of blood lipid, virus resistance and enhancement of the immunoreactive activity of monocytes, macrophages, T cells and natural killer cells in immune antigens. The preparation technique includes ultrasonic-assisted extraction, ultrafiltration concentration, washing purification and drying. The preprocessed dahuricia larch as a material is mixed with a designated solvent, extraction process is fulfilled in the energy field of ultrasonic energy, so that the crude extractant A of the arabogalactan is produced. The invention applies adsorbent to absorb the non-saccharide ingredients in the crude extractant A, and applies membrane separation techniques, such as microfiltration, ultrafiltration, etc., to separate arabogalactan, and after removing impurities in the crude extractant, small-molecule pigments and partial solvent, the purified arabogalactan solution D. The purified arabogalactan solution D is refrigerated and dried in order to obtain the white or light yellow powdery high-purity arabogalactan, and purity can reach over ninety five percent.

The invention relates to a method for cultivating stropharia rugoso-annulata under an artificial larix gmelini forest in the northern area. The method is characterized by including the following stepsof firstly, selecting a forest and making a preparation; secondly, processing a cultivation material; thirdly, forming a bed for inoculation; fourthly, conducting fungus strain running management; fifthly, conducting fruiting management; sixthly, conducting harvesting. The method has the advantages that the plantation and cultivation of the stropharia rugoso-annulata under the artificial larix gmelini forest in the north of China through raw material cultivation, straw reduction and liquid inoculation are realized, a pine needle humus resource in the larix gmelini forest is sufficiently usedas the cultivation raw material, and the straw reduction is realized; the raw material cultivation is conducted through a bed dwarfing method in combination with the advantages of the low forest earthtemperature and air temperature, seedling burning is avoided, and the operation process is simplified; cost is reduced, and meanwhile the planting efficiency is improved and labor cost is reduced when sowing is conducted through liquid fungus strains.

The invention discloses a method for extracting proanthocyanidins from dahurian larch barks. The method comprises the following steps of: (1) grinding dahurian larch barks into granules, and (2) performing supercritical extraction to obtain a proanthocyanidin extraction liquid. The method makes full use of dahurian larch barks in the Da Hinggan Ling area and has the characteristics that the raw materials are easily available, the cost is low, the yield of supercritical extraction is high, the extract is not damaged, and the production is safe and environment-friendly. The method can satisfy the needs for proanthocyanidins.

The invention discloses a preparation method of bamboo fiber paper cups. The invention relates to a bamboo fiber paper cup and a production process thereof. The bamboo fiber paper cup mainly structurally comprises a hollow fiber cup body, and is characterized in that the cup body comprises an outer layer, an inner layer, a hollow layer arranged between the outer layer and the inner layer and a coating layer above the inner layer. The outer layer and the inner layer are prepared from the following components in parts by weight: bleached bamboo fibers, dahurian larch fibers, modified starch, chitosan, talc powder, a dispersant, guar gum, glyceride hydrolase and a wet-strength agent. The hollow layer is prepared from the following components in parts by weight: polypropylene hollow short fiber pulp, dahurian larch fibers, chitosan, talc powder and a dispersant. According to the above settings, the outer layer and the inner layer are produced by employing bamboo fibers. The bamboo fiber pulp not only is environment-friendly, but also has the characteristics of being excellent in antibacterial property, bacteriostatic and free of peculiar smells. The hollow fiber layer has the functionsof being light in weight, heat insulative and warm-keeping. The bamboo fiber paper cup serving as a hot drink paper cup and a cold drink paper cup simultaneously is relatively safe.

The invention discloses a preparation method of a composite floor core material taking larch bark as a raw material, and belongs to a manufacturing method of floor substrates. The preparation method solves the problems of deficient forest resources, the low utilization rate and serious waste of the larch. The preparation method comprises the following steps: (1) crushing the larch bark into small pieces; (2) drying the small pieces obtained in the step (1) until the water content thereof reaches 3-5%; (3) evenly blending a phenolic resin adhesive and the small pieces of the larch bark in an adhesive blender, wherein, the adhesive application amount is 8-10% of the small pieces of the larch bark based on weight percentage; and (4) performing single layer structural felting and hot pressing on the small pieces of the bark which are applied with the adhesive by a felting machine to prepare the floor core material taking the larch bark as the raw material. The floor core material saves wood resources, improve the utilization rate of the larch bark, have a thermal insulation property better than the wood as the larch bark contains a cork layer with small thermal conductivity, and has low thermal conductivity and excellent damping and acoustic insulation properties.

The root inducing method for microbody reproduction of Japanese larch is that annual material of Japanese larch clone is made to complete the regeneration of root organ via the combined stem inducing, varying temperature culture in rooting culture medium and sub-reproduction. It includes the steps of collection and pre-treatment of material via culture in water at normal temperature for two weeks; preparing improved MS culture medium; inoculating axillary bud cut down from flow water washed branch and sterilized to stem inducing culture medium for growing adventitious stem; transferring the adventitious stem in rooting culture medium for growing root; and sub-reproduction in varying temperature to complete the regeneration of root organ. The present invention can speed the reproduction of Japanese larch and colony amplification.

The present invention relates to the technical field of new energy, and discloses a pellet fuel prepared by use of crops straw, the pellet fuel comprises the following raw materials by weight: 10-15 parts of cotton stalk, 10-15 parts of corn straw, 10-15 parts of peanut shell, 5-10 parts of dahurian larch sawdust, 5-10 parts of rice husk, 5-10 parts of soybean hulls, 3-5 parts of alumina, 3-5 parts of magnesium carbonate, 3-5 parts of calcium carbonate and 3-5 parts of pine oil. The pellet fuel utilizes the abandoned crops as the raw materials, and uses local materials, the product has the characteristics of being energy saving, environmentally-friendly, non renewable resource-saving, and the like, and eases the contradiction of the shortage of electric power and petroleum; the pellet fuel utilizes the crop straw as the main ingredient, is added with suitable amount of additives, is clean and environmentally-friendly, fully uses energy, and makes full use of waste biomass fuels, the raw material source range is wide, combustion rate is high, the pellet fuel is safe to use, and sustainable to use, bottom ash slagging rate is low, and the combustion pollution is less.

The invention provides a method for extracting dihydroquercetin from root of dahurian larch in a specified area by utilizing the resource advantages of high content of dihydroquercetin of the root of a tree (200mm below the earth surface). The method comprises multiple steps of selecting raw materials, treating, extracting, concentrating, hydrolyzing, extracting, recrystallizing and the like. The method for extracting dihydroquercetin from the root of the dahurian larch, provided by the invention, researches and plans environment-friendly and index-optimized processes by utilizing the resource advantages of high content of dihydroquercetin of the root of the tree so as to fill the blank of industrial extraction processes in China.

The invention discloses biologically treated light-coated glassine paper and a preparation method thereof. The method comprises the steps of material selection of selecting russia larix gmelini, fast-growing eucalyptus in the north sea and glass wool fiber as production materials; slurry preparation of larix gmelini, eucalyptus and wool fiber; and slurry preparation, biological treatment, papermaking and final paper forming operation. According to the preparation method of the biologically treated light-coated glassine paper, the transparency of the glassine paper is significantly improved by combining alkali treatment with bioenzyme treatment by selecting imported larix gmelini with excellent performance, cheap and available domestic eucalyptus and the glass wool fiber capable of improving the paper forming strength as the raw materials; meanwhile, the problems of linting and dusting of the surface of the glassine paper in the using process is solved through light coating; and the biologically treated light-coated glassine paper has excellent paper performance and relatively high market value.

The invention discloses a method for extracting arabinogalactan and dihydroquercetin from dahurian larch. The method is characterized in that dahurian larch is taken as a raw material and is subjected to supersonic extraction with an ethanol solution; solid and liquid are separated from each other through filtering, so that an extracting solution is obtained; absolute ethyl alcohol is fed into the extracting solution till polysaccharide is sufficiently settled; the polysaccharide is subjected to high-speed centrifugation; precipitation, refrigeration and drying are performed, so that dahurian larch arabinogalactan crude extract is obtained; ethyl alcohol in supernate is concreted till solid matter is obtained; the solid matter is dissolved through hot water and then is enriched through macroporous adsorption resin; elution and recrystallization are performed, so that dihydroquercetin extract is obtained. The method has the main characteristics that the raw material is not required to be dried and directly used, the energy consumption is low, by adjusting the content of ethanol in the ethanol solution for extracting, arabinogalactan and dihydroquercetin are simultaneously extracted, the production cost is low, energy consumption is reduced, the yield of products is high, the process of purification performed by the macroporous adsorption resin is pollution-free, all solvents can be recycled, and the method is convenient for industrial scale production.

The invention relates to biomass granular fuel, which is prepared from the following raw materials in parts by weight: 40 to 50 parts of stalk powder, 40 to 50 parts of branch leaf powder, 20 to 30 parts of dahurian larch wood dust, 10 to 20 parts of redwood dust, 20 to 30 parts of hardwood dust, 8 to 15 parts of sulphur-fixing agents, 5 to 10 parts of lubricating agents and 4 to 8 parts of loosening agents. The invention also relates to a preparation method of the biomass granular fuel. The biomass granular fuel provided by the invention has the advantages of high calorific value, high combustion utilization rate and small environment pollution; the development of new energy resources can be promoted; the fuel can be used for providing life and production energy for rural areas.

The invention provides a larixLeptolepis somatic embryo regeneration method, which comprises the following steps of: collecting a larixLeptolepis immature seed zygotic embryo as an explant, and inducing a larixLeptolepis embryonic callus; culturing for 7-10 days on a new subculture medium, selecting the embryonic callus which favorably grows, inoculating the embryonic callus in a liquid culture medium in a conical flask, and carrying out dark culture in a table concentrator at 50-125 rpm and a temperature of 20-25 DEG C under a suspension condition for 4-7 days; then, transferring a culture into a semisolid culture medium, and carrying out the dark culture in the table concentrator at 50-125 rpm and the temperature of 20-25 DEG C under the suspension condition for 4-7 days; and finally, inculcating the culture to the surface of a solid culture medium, carrying out the dark culture for 23-30 days at the temperature of 20-25 DEG C, and forming a later-stage cotyledon embryo. According tothe method, a great quantity of high-quality somatic embryos can be generated by induction, abnormal embryos are reduced, somatic embryo formation induction time is short, in addition, a better synchronization effect can be achieved, and induction efficiency is high.

The invention provides a post-fire recovery method for a cold temperate zone grass type Xing'an larch forest burned area, and aims to put forward a detailed and systematic post-fire recovery method specific to burned areas of the grass type Xing'an larch forests in various damage extents. According to the recovery method for the cold temperate zone grass type Xing'an larch forest burned area in various conditions, through a burned area survey, the exact time of the forest fire, the damaged level of the burned area, the forest stand forest stand before the fire, the condition that whether larch seed trees in the burned area can provide sufficient provenances for area renewal or not, the site condition survey of the burned area and renewed plant investigation of the burned area can be determined, through the judge of seed year, different damage levels can be determined, and whether larch can provide sufficient provenances for area renewal or not can be determined, so that a technical support for large area burned area ecological restoration engineering construction is provided.

The invention aims to carry out microwave pre-treatment by utilizing ionic liquid lithium salt before ultrasonic extraction, so as to dissolve part of a plant cell wall, enhance cellular permeability, accelerate solvent permeation, improve solvent function efficiency, and achieve the purpose of improving the extraction efficiency of dihydroquercetin. The method can remarkably improve dihydroquercetin yield, and is characterized by comprising the following steps: step 1, completely drying part of larch hadromestome, and smashing with a pulverizer; step 2, dissolving with a ionic liquid; step 3, adding larch wood powder obtained in the step 1 into the liquid obtained in the step 2, stirring fast to obtain a uniform liquid, and completely steaming out an organic solvent diluting ionic liquid lithium salt with a rotary evaporator; step 4, adopting microwave to further pretreat the product obtained in the step 3; step 5, further adding deionized water into the pretreated product after the pretreatment is finished, and carrying out ultrasonic auxiliary extraction; step 6, filtering, taking 1 mL filtrate for centrifugation, and carrying out HPLC detection.

The invention belongs to the technical field of edible fungus cultivation, and relates to a wild-imitating efficient cultivation method of morel. The method comprises the steps that 1), a piece of dahurian larch forest land is selected as a cultivation field, soil turning and farmland piece making are conducted, and farmland pieces are prepared to be flattened; 2), field maintaining fixing material is mixed with the soil, and a layer of thin pulverized lime is scattered on the soil surfaces of the farmland pieces; 3) packaged nutritious material to which morel is inoculated is applied to cultured strains, the cultured strains are broken up with hands and uniformly scattered on the surface of a farmland piece bed, and the surface of soil is covered with humus soil with the thickness of 1-2cm, and water mist is sprayed; 4), when fungus frost emerges 10-20 days after sowing is conducted, external-aiding nutritious bags are placed. The method has the advantages that the land is improved,the formulas of used materials are simple and economical, and extremely good growing conditions are provided for the morel; nutritious liquid is provided in the growing process of the morel, and management is conducted on the growing environment of the morel to facilitate the improvement of the yield and quality of the morel.

The present invention relates to forest reproduction and plant regeneration technology in forestry science, and is especially stem inducing method for microbody reproduction of Japanese larch. From annual branch of Japanese larch of different age, the axillary bud as the clone material is taken and processed through adventitious stem formation, growth, subculture and other steps to reproduce stem organ. The present invention provides one reproduction method with fast speed, short period, no influence of seasoning and high multiplication efficiency for the formation of the reproduction plant of Japanese larch.

The invention discloses a medicine for treating Alzheimer's disease and a preparation method thereof. The medicine for treating the Alzheimer's disease is prepared from the following components in parts by mass: 10 to 15 parts of curcumin, 15 to 30 parts of silymarin, 8 to 12 parts of ginkgo biloba extract, 20 to 30 parts of uva ursi extract, 15 to 30 parts of corn stigma extract, 6 to 12 parts of larix gmelini extract, 12 to 16 parts of dandelion extract, 16 to 20 parts of American ginseng extract, 10 to 15 parts of fructus evodiae extract, 10 to 20 parts of polygonum multiflorum extract, 5 to 15 parts of saffron extract, 13 to 17 parts of acanthopanax root extract, 5 to 10 parts of salvia miltiorrhiza extract, 10 to 20 parts of radix puerariae extract, and 20 to 30 parts of gynostemma pentaphylla extract. The medicine has the advantages that the absorbing rate of Chinese herbal medicine prescription is improved, the synergistic function of Chinese herbal medicine prescription in pharmacological effect is realized, the functions of combining positive and evil, invigorating qi and removing blood stasis, tonifying kidney and strengthening brain, improving learning and memory capability and the like are realized, and the therapy effect is obvious.

The invention provides a post-fire recovery method for a cold temperate zone ledum Xing'an larch forest burned area, and aims to put forward a detailed and systematic post-fire recovery method specific to burned areas of the ledum Xing'an larch forests in various damage extents. According to the recovery method for the cold temperate zone ledum Xing'an larch forest burned area in various conditions, through a burned area survey, the exact time of the forest fire, the damaged level of the burned area, the forest stand forest stand before the fire, the condition that whether larch seed trees in the burned area can provide sufficient provenances for area renewal or not, the site condition survey of the burned area and renewed plant investigation of the burned area can be determined, through the judge of seed year, different damage levels can be determined, and whether larch can provide sufficient provenances for area renewal or not can be determined, so that a technical support for large area burned area ecological restoration engineering construction is provided.

The invention discloses an environmental-friendly tea planting compound fertilizer. The environmental-friendly tea planting compound fertilizer is prepared from urea, kaolin, bentonite, humic acid, goose excrement, pig manure, sheep manure, cow dung, quail excrement, chicken manure, dipotassium phosphate, sodium acid pyrophosphate, sodium acid pyrophosphate, sodium dihydrogen phosphate, calcium nitrate, disodium hydrogen phosphate, bdellovibrio powder, bacteriophage powder, agritol powder, candida powder, cotton straw powder, rice straw powder, rhodococcus powder, buxus megistophylla wood flour, larix gmelini wood flour, plant activating enzyme and microelements. The prepared compound fertilizer contains N, P, K and other major element nutrients and further contains a certain proportion of microelements, the tea fertilizer requirement law and the current tea forest soil nutrient situation are combined, and the formula has high specificity. The environmental-friendly tea planting compound fertilizer is higher in pertinency for the tea production process and is more comprehensive, balanced and reasonable in nutrition, and the actual application effect is better.

The invention discloses a high-efficiency saw dust-based biomass particle, a raw material formula of the high-efficiency saw dust-based biomass particle comprises the following components in parts bymass: 10 to 20 parts of corn stalk, 8 to 15 parts of wheat straw, 9 to 16 parts of rice straw, 8 to 17 parts of cotton stalk, 6 to 13 parts of dahurian larch, 5 to 12 parts of Korean pine, 7 to 11 parts of peanut shell, 7 to 12 parts of bark, 6 to 9 parts of peanut vine, 5 to 10 parts of sawdust and 3 to 5 parts of coal cinder. The wood granular fuel takes the corn stalk, the wheat straw, the ricestraw and the cotton stalk as main raw materials, after being processed by professional equipment, the product density is high; the wood granular fuel has the characteristics that the transportationand storage are convenient, the ash content is low, the sulfur dioxide and nitrogen oxide emission is low and the carbon dioxide zero release is realized, can be widely applied to urban resident heating, town shower room and town district heating, and is a clean, environment-friendly and renewable energy source.

The invention discloses a method for simulating larix gmelini tanning extract tanned leather by common vegetable tanned leather. The method is characterized in that common tanning extract is subjectedto complete tanning by pelt subjected to pickling and deacidification preprocessing by a drum quick vegetable tanning method, alkaline dye diluted by organic solvent is added in different times through a drum shaft to be subjected to color modulation, the obtained product is dipped for the whole night after color modulation is finished, and the obtained simulated larix gmelini tanning extract tanned leather is subjected to subsequent operation according to a conventional tanned leather processing technology. According to the method provided by the invention, an extremely small quantity of alkaline dye is used for dyeing the tanned leather tanned by common tanning extract, the color of a finished product does not have an obvious difference with larix gmelini tanned leather, and thereafore,the problem that the leather color of the pure tanned leather is difficult in meeting market requirements since larix gmelini tanning extract is in the shortage can be successfully solved.

The invention relates to a growth-promoting complex microbial inoculant for dahurian larch, and a preparation method and an application method thereof, belonging to the technical field of microbial inoculants. In order to solve the problems of low natural renewal survival rate and poor effect of the dahurian larch, the invention provides the growth-promoting complex microbial inoculant for the dahurian larch. The growth-promoting complex microbial inoculant is prepared by compounding a chroogomphus rutilus microbial inoculant and a boletus edulis spore suspension according to a certain mass-volume ratio. When lateral roots grow from dahurian larch seedlings, the growth-promoting complex microbial inoculant is applied to soil and can form effective mycorrhiza with the root system of the dahurian larch, so the growth of the dahurian larch is promoted; the survival rate of the dahurian larch seedlings in barren and arid soil can be effectively improved; renewal is promoted; the quality ofnursery stocks and the yield of crops are improved; and the purposes of growth promotion, seedling strengthening, high yield and maintenance are achieved. The growth-promoting complex microbial inoculant for the dahurian larch provided by the invention is applied to promoting growth and renewal of the dahurian larch in places having suffered from fires and felling, and can promote material circulation and energy flow of an ecological system.