127results about How to "Product quality and safety" patented technology

The invention discloses a method for preparing monopotassium phosphate by using wet-process phosphoric acid. The method comprises the following steps: reacting carbonyl diamide and wet-process phosphoric acid to obtain an intermediate; reacting the intermediate and potassium hydroxide to prepare a monopotassium phosphate product. The method has the advantages of short process route, low energy consumption, stable product quality, low production cost, convenience in operation and safety in production. A side product, namely, slurry can be recycled completely, an entire production process is environment-friendly, clean and free from pollution, and no waste gas, waste water or waste residues are discharged. A response is made to the policy calling of energy saving, emission reduction and clean production, the problems of complex process, instable product quality, high energy consumption and environmental pollution existing in the prior art are solved, and the purity of the obtained monopotassium phosphate product is more than or equal to 98 percent.

In a particular embodiment, a portable, hand-held device to manage product quality and safety includes a processor and a memory accessible to the processor. The memory includes instructions executable by the processor to collect data related to a particular location and to generate a graphical user interface (GUI) including a plurality of user-selectable elements accessible by a user. The plurality of user-selectable elements includes a first user-selectable element to initiate playback of a training video, a second user-selectable element to receive user input associated with the particular location, and a third user-selectable element to display data indicating actions to be taken by the user in response to the collected data. The device further includes a display interface responsive to the processor and adapted to display the GUI.

The invention discloses a laying-hen feed additive. Hawthorn power with obvious lipid-reducing function in western China, tea powder (processed byproducts), eucommia leaf powder, gynostemma pentaphyllum powder (processed byproducts), mulberry leaf powder, ginkgo leaf powder, seabuckthorn leaf powder, chili powder (processed byproducts) and other plant resources are optimized, matched and combined through a functional complementation principle to be taken as the laying-hen feed additive for low-cholesterol health eggs. The additive has the advantages of ensuring that the cholesterol content of eggs is lower than a normal level by over 35 percent, obviously improving the color of egg yolk, ensuring longer retention period of the eggs and obviously reducing non-viral diseases of laying hens in feeding period.

The invention relates to a chemiluminescent immunoassay method, in particular to a method for analyzing an acridine ester labeled antigen or an acridine ester labeled antibody and an immunoassay kit prepared by same. An acridine ester label is provided with a special luminescent group in a chemical structure, and the special group directly participates in luminescent reaction in the analyzing process of luminescent immunization; the substance does not have background luminescence usually, can be used for detecting a sample with low concentration or trace concentration in the reaction and is a luminescent agent with high luminescent efficiency; and molecules of acridine ester I and acridine ester II and acridine amide III can be combined with an antibody (antigen) to generate the labeled antibody with high chemiluminescent activity and immunological reaction specificity.

The invention discloses a zinc oxide (ZnO) / reduced graphene oxide / polypyrrole (ZnO / RGO / PPy) ternary composite material, which belongs to the technical field of composite material. The ZnO / RGO / PPy ternary composite material is prepared by a two-step method, including preparing a uniformly-dispersed binary composite material ZnO / reduced graphene oxide (ZnO / RGO), and polymerizing pyrrole (Py) monomer by chemical oxidation method by using the binary composite material as a template to obtain the ZnO / RGO / PPy ternary composite material. The ZnO / RGO / PPy ternary composite material prepared by the invention has both the electric double layer capacitance characteristics of RGO and pseudocapacitor energy storage characteristics of ZnO and Ppy, so that the composite material can show high electrochemical capacitance behavior, excellent rate capability, good circulation stability, and has high energy densigh and power density, , and can be used as the electrode material of a super capacitor.

The invention relates to a method for refining fasudil hydrochloride. The method comprises the following steps: 1, discoloring, namely adding active carbon into fasudil after resin adsorption, fully mixing the active carbon and the fasudil, filtering the mixture, removing the active carbon, and collecting the filtered solution for later use; 2, washing, namely adding purified water into the discolored solution, fully mixing the solution, separating the solution to remove water phase, and collecting the oil phase for later use; 3, acidifying and salifying, namely adding the purified water intothe oil phase, adjusting pH value of the solution by hydrochloric acid to fully acidify and salify the oil phase, and collecting the water phase for later use; and 4, crystallization, namely, adding n-butyl alcohol into the water phase, fully mixing the solution, then decompressing and azeotropic-crystallizing the solution, duly replenishing the n-butyl alcohol to keep the consistency of the solution, stopping crystallization till the moisture content in the mother solution is reduced to a certain value, and filtering and drying the crystals to obtain a refined fasudil hydrochloride product.

The invention provides a preparation method of laminated structure cobalt and aluminum double hydroxide-reduction and oxidation graphene composite materials, and belongs to the technical field of composite materials. The method comprises that firstly Co (NO3)2 and AL (NO3)2 are dissolved in water to form mixed solutions; then oxidized graphene is in fully ultrasonic dispersion in the water to form luminous yellow solutions, and the luminous yellow solutions are added to the mixed solutions to be mixed for 20-30 hours; then hexamethylene tetramine is added to a system for backflow of 12-24 hours at the temperature of 100-160 DEG C; and after reaction is completed, the composite materials are gained through filtration, washing and drying. The composite materials prepared through the preparation method simultaneously have an electrical double-layer capacitor of RGO and cobalt and aluminum double hydroxide pseudo-capacitance energy storage characteristics, and thus show high electrochemistry capacitance behaviors, excellent rate capability and good circulatory stability performance, have high energy density and high power density, and can serve as electrode materials of supercapacitors.

The invention provides a xylitol production method by utilizing corn cobs or agro-forestry waste, such as, stalks, as raw materials. The method includes the pretreatment of the raw materials, the diluted acid treatment of the raw materials and the solid-liquid separation, the ingredients of obtained liquid phase are treated with decolorization, filtration, deacidification and RO concentration, then a yeast is utilized for fermentation so as to obtain a xylitol. A relatively pure xylitol liquid is obtained after the bacteria removal, the concentration and the chromatographic separation of the fermentation liquid, then a solid finished product xylitol is obtained by decolorization, ash removal, concentration, crystallization, separation and drying, and a crystal parent solution returns to the chromatographic separation. In addition, the invention carries out the pulp conditioning of solid phase components which are obtained by the solid-liquid separation after acidolysis, then the solid phase components are used for ethanol fermentation after the enzymolysis; the lignin residue which is obtained after the filtration of the products of the enzymolysis can be taken as fuel or be used for the development of the deep-processed products of the lignin. The xylitol production method of the invention can greatly reduce the cost of the industrial production of the xylitol and lead all the components of the raw materials to be utilized effectively.

The invention discloses a method for preparing a natural resistant banana starch, which comprises following steps: processing banana; scalding to soften; beating, and separating the peels and the pulp to obtain pulp; blending; homogenizing and spray-drying; etc. By adopting the green banana as the raw material, the product is milk white to whitish yellow fine granules with loose structure. The preparation method has simple steps, high retention rate of the resistant starch up to 90% by adopting the spray-drying method, and greatly reduced processing cost. The banana powder prepared by the method is mainly used for moderate-low temperature processed food, such as ice cream or cake, etc., or for flavorings, dairy products or beverages as a food thickening agent, thus improving the consistency, the opacity and the suspension rate of product besides exerting the special physiological effect of banana, and improving the food quality and the processing process.

The invention discloses a preparation method of a quick absorption saturation gelation seaweed hemostatic dressing. The method includes the steps of: soaking, rinsing and drying on calcium fiber textile or non-woven products containing alginate, and the carrying out cutting, packaging and sterilizing to obtain the quick absorption saturation gelation hemostatic dressing. The invention also discloses the application of the quick absorption saturation gelation seaweed hemostatic dressing prepared by the above method. The invention is applicable to rapid absorption and removal of a large amount of surgical diffusate in surgical operation process, so as to realize the effects of rapid hemostasis and operation wound clean; the hemostatic dressing is used for burn, scald and other acute and chronic wounds, can cover the wound and prevent moisture loss in body fluids, provide a positive moist environment for wound healing, prevent the wound from effusion and erosion, isolate bacterial infection, and play the effects of stopping bleeding, relieving pain, promoting wound healing, and reducing scar.

The invention discloses a method for sifting a vegetable breed with low-accumulated / low-enriched heavy metals and belongs to the technical field of the quality safety of a farm product. The method comprises the following steps: (1) a potted plant mode is carried out in a greenhouse or a big shed; (2) sifting is carried out from four classes of vegetables, namely lefty vegetable, rhizome, solanaceous fruit and melon; (3) according to the limited values of the detected elements Hg, As, Pb and Cd for heavy-metal pollution in the vegetables regulated by the state and the concentration grads of 0 time, 0.5 time, 1.5 times and 4.5 times, heavy metals are added into potted soil manually; (4) vegetables are subjected to seedling, planting and management; and (5) the contents and the outputs of the heavy metals in an edible part of a product are mensurated; the product which meets the highest concentration treatment, has no marked reduction of average output per plantlet compared with the contrast and does not exceed the standard of the contents of the heavy metals is selected as the vegetable breed with low-accumulated / low-enriched heavy metals. The method has simple operation, wide applicability, economy and high efficiency, and can be popularized and applied to the departments of vegetable layout, planning and production.

The wet and hot modifying process for albumen powder includes compounding albumen powder into suspension, adding small amount of lactic acid, homogenizing, heating in a jetting system, maintaining in pipeline for certain time, vacuum flash evaporation to cool and spray drying. The modified albumen powder has obviously raised swelling property, emulsifying property and gelatination property, so that it may be used in ham sausage to ensure quality of ham sausage. The modification process is one physical process without introducing chemical matter, and this ensures the safety of product. The modification process has less irreversible changes and can make full use of the functions of albumen powder.

The invention provides a wild planting imitation method of dendrobii officmalis caulis. The wild planting imitation method comprises the following specific steps: (1) selecting planting places, namely selecting cliff walls which are positioned at the southern region of Yangtze River, faces to the shade side and has the characteristics that the altitude is 300-1700 meters, the average temperature is 15-21 DEG C all the year round, and rock bodies are sandy conglomerates; (2) selecting planting stocks, namely selecting plants which grow for 1-2 years, have light green colors and developed roots and do not have pest and disease damage as seed plants; (3) planting in January to March, during planting, upturning dendrobii officmalis caulis seed plants, arranging the dendrobii officmalis caulis seed plants by being close to the cliff walls, and tightly fixing the roots of the seed plants on the cliff walls which are smooth, cannot accumulate water and has the slopes being 80-90 degrees by using iron fixing buckles; (4) managing after planting, namely carrying out spray irrigation once every 5-10 days by mountain spring water in the arid season; and (5) harvesting. According to the method, the originally ecological wild planting imitation of dendrobii officmalis caulis can be realized, the harvested dendrobii officmalis caulis has high effective constituents and good quality, and is safe and reliable in quality, and the medicinal efficacy of dendrobii officmalis caulis prepared by the method is equivalent to that of wild dendrobii officmalis caulis.

The invention relates to Astragalus mongholicus injection and a preparation method thereof. The injection contains two effective components: astragaloside and calycosin-7-glycoside. 1ml of Astragalus mongholicus injection contains 0.08-0.8mg of astragaloside and 0.02-0.4mg of calycosin-7-glycoside, wherein the astragaloside accounts for 1-10 percent of total solids, and the calycosin-7-glycoside accounts for 0.20-5 percent of the total solids. The injection provided by the invention is better in adjuvant therapeutic effect in the aspects of treating myocarditis, myocardial ischemia, cardiac failure, myocardial infarction and arrhythmia, and the therapeutic effect of the injection is superior to that of the prior art.

The invention discloses a preparation process of a blood activating capsule, which comprises the following steps that: first, angelica and citrus aurantium extract the fat-soluble effective ingredient groups through a supercritical CO2 extraction process, the fat-soluble effective ingredient groups are included by Beta-cyclodextrin to prepare inclusion volatile oil, herb residue and astragalus, peach kernel, safflower and other six Chinese medicines are decocted, the filtrate is concentrated into clear cream A, ethanol is added in so that the ethanol content is 65 percent, supernatant is taken out and the ethanol is recovered, and clear cream B is prepared by concentration; and finally clear cream C is purified by macroporous resin enrichment, the clear cream C is heated, sterilized, dried by microwave to prepare dry cream, and the dry cream is mixed with rhizoma ligustici wallichii fine powder and the included volatile oil and starch, boiled and granulated, and the capsule is filled. The preparation process of the blood activating capsule has the advantages that the blood activating capsule prepared has safe and reliable therapeutic effect and stable and controllable quality, abandons the ineffective and harmful ingredients in the Chinese medicine raw material, improves the medicine purity and reduces the dose of a patient.

The invention discloses a preparation method of an organic-inorganic composite attapulgite mycotoxin adsorbent. The preparation method comprises: modifying acid activated attapulgite by using quaternized chitosan oligosaccharide, carrying out a reaction on the obtained material and acid activated active carbon, carrying out centrifugation, washing, drying, and crushing to obtain the organic-inorganic composite attapulgite mould toxin adsorbent. According to the present invention, the obtained product can effectively adsorb and remove all kinds of mycotoxins in the feed, has antibacterial function, and can reduce the antibiotic consumption in the feed.

The present invention belongs to the field of pressure-sensitive adhesive, and is especially one kind of solution type low temperature acrylate adhesive. The solution type low temperature acrylate adhesive consists of acrylate copolymer colloid and mixed solvent comprising acetone and hexae. The adhesive is suitable for pressure-sensitive adhesive product operated at temperature below 70 deg.c, and may be dried completely at the temperature in saving of energy source.

The invention discloses a technique for processing nutritional health-care bean curd skin, which comprises the following steps of: cleaning, crushing and soaking soybean, separating soybean milk and dreg, heating, performing secondary milk and dreg separation, putting the obtained soybean milk in a drying box, drying the soybean milk to obtain bean curd skin, and cutting the bean curd skin. The technique has direct current flows; and the whole process from soaking the raw material to pulping, boiling and feeding in the drying box is of self flowing mode. Manpower and power are reduced, and fault rate is reduced. A vehicle-mounted drying box is adopted in the technique, and the drying vehicle has small floor area, so the area of a drying chamber is saved. The drying box is cast by using a die and made of polyethylene acrylonitrile butadiene styrene (ABS) material and has smooth surface, so the drying box is favorable for stripping and cleaning. Compared with the prior art, when products of the same number are processed, the technique can save work efficiency by 6 times, save soybean by 30 percent, save coal by 50 percent and save water by 95 percent. In the technique for processing the product by using the soybean containing 13 percent of water, the yield is 76 to 80 percent, the water content of the product is 8 to 10 percent, and the rest moisture is evaporated during processing the product and then reclaimed. After the produced soybean dreg serving as a byproduct is squeezed and drained, the rest soybean dreg is dried by using waste heat of a boiler flue, and the dried soybean dreg is a raw material for multiple products, so the utilization rate of the soybean reaches 100 percent. By the technique, chemical additive is not added during processing of the product, and zero discharge during production of the product is realized.

The invention relates to a method for extracting mogrosides from Siraitia grosvenorii fruits. Raw materials are subjected to pretreatment, primary extraction, pumping filtration, secondary extraction, pumping filtration, multi-stage filtration, decompress concentration and drying, and the mogrosides are obtained. According to a secondary extraction method adopting ultrasonic-assisted secondary water extraction, Siraitia grosvenorii fruit powder particles are vigorously oscillated in a solution in the presence of ultrasonic waves, and motion of soluble components is facilitated. Meanwhile, the ultrasonic waves performing large-amplitude motion propagate in a medium and can form zigzag cyclical fluctuation, the radiation intensity in the sound wave propagation direction is high, raw material particles are further broken, dissolution of the soluble substances is facilitated, and the yield of the mogrosides is increased to a certain extent. By means of multi-stage filtration including pumping filtration, ultrafiltration, nanofiltration and the like after water extraction, the extraction purity is high. The whole extraction process is simple and easy to operate, continuous large-scale production can be realized, chemical reagent residues are avoided, and product quality safety is guaranteed.

The invention relates to an online full-automatic cleaning device and method for a lithium battery slit extrusion type coating die head. A die head lip opening and a coating steel roller are included. A cleaning mechanism is arranged between the die head lip opening and the coating steel roller and comprises a cleaning cavity plate. The cleaning cavity plate comprises a seal long strip and a flow guiding arc groove. The end portions of the front end and the rear end of the cleaning cavity plate are connected with an inlet seal plate and an outlet seal plate. The flow guiding arc groove makes contact with the upper slope and the lower slope of the die head lip opening through the seal long strip, and after pressing and sealing, a closed cleaning tunnel is formed. The inlet seal plate and the outlet seal plate make contact with the two ends of the formed closed cleaning tunnel for pressing, circumferential sealing is conducted, an inlet and an outlet are connected with pipelines, and the pipelines are provided with electromagnetic valves. When coating is stopped, the equipment automatically opens various valves, slurry circulation in the die head and die head lip opening slit periodical flushing and blowing-dry cleaning procedures are executed, deposited slurry and air in the die head are avoided, the lip opening slit is free of dry and hard slurry, and the lip opening is clean.

The invention relates to a preparation method for a dedicated soybean paste leavening agent, belongs to the field of fermentation engineering, and in particular relates to a method for preparing a leavening agent with mixed strains for soybean paste preparation. The preparation method is characterized in that two types of dedicated soybean paste solid leavening agents used in primary fermentation A and after fermentation B respectively are contained, wherein the dedicated soybean paste solid leavening agent used in the primary fermentation A comprises aspergillus oryzae, aspergillus niger, natto fungus and the like which are prepared in a pure-culture manner; the dedicated soybean paste solid leavening agent used in the after fermentation B comprises aroma-producing yeast; the spore or thallus amounts of both the dedicated soybean paste solid leavening agents are not lower than those of a 108 CFU / g bacteria agent. The method refers to the processes of soaking soybeans, cooking, wrapping the soybeans with steamed wheat flour, inoculating the leavening agent A, making koji, carrying out primary fermentation, mixing with low-salt water, inoculating the leavening agent B, carrying out after fermentation, maturing, sterilizing, checking and obtaining the finished product. The preparation method has the advantages that (1) a composite leavening agent is adopted, so as to shorten paste airing time or fermentation time during paste making, and ensure safe quality of the product; (2), the leavening agents are powdered to facilitate use; (3), the product is bright in tint, has paste flavor and ester flavor, is low in salt content, and has no foreign taste; (4), the production technology is simple.

The continuous production process of high purity trimellitic anhydride with trimellitic acid includes the following steps: smelting trimellitic acid and eliminating acetic acid and water in the first kettle, and eliminating water inside trimellitic acid molecule in the second kettle to form trimellitic anhydride; eliminating heavy components in crude trimellitic anhydride product in one heavy component eliminating evaporator; eliminating light components in the evaporator of one light component eliminating tower; and rectifying through condensing trimellitic anhydride in the condenser on the top of the light component eliminating tower to obtain trimellitic anhydride product fed to the product tank. The present invention has stable product quality, high product purity, high product yield, low power consumption and other advantages.

The invention relates to a continuous production process for an amino trimethylene phosphonic acid. The continuous production process comprises the steps of adding ammonium chloride, phosphorous acid and formaldehyde in a mixing kettle according to a certain molar ratio; adding reverse osmosis water; mixing uniformly at the temperature of 35 DEG C; pumping into a tubular reactor at a certain flow rate; reacting thoroughly; then introducing into a spraying absorption tower; and spraying from the top of the tower so as to contact with rising high temperature water vapor, condensing amino trimethylene phosphonic acid being cooled to enter the tower unreacted ammonium chloride, formaldehyde and hydrogen chloride vapor entering a rectification apparatus to be separated by rectification from the top of the tower. Continuous feeding and discharging production process is employed, and conventional intermittent production process employing single kettle mixing material is changed, so that utilization rate of the equipment is increased; production period is shorten; productivity is increased; performance is more stable; comprehensive energy consumption is reduced; and large-scale industrialized production can be achieved easily.

The invention discloses a process for preparing a water-soluble ginkgo biloba extract used for injection, which comprises the following steps: preparing a medicinal gelatin aqueous solution of 0.1-0.3 percent; dissolving the water-soluble ginkgo biloba extract by the gelatin aqueous solution; ultrafiltering and drying the dissolved ginkgo biloba extract in vacuum to prepare total ginkgo terpene lactones and a total ginkgo flavone-glycoides extract; and generally mixing the components according to respective contents so as to prepare a finished product. In the water-soluble ginkgo biloba extract, the content ratio of total flavonol glycosides to the total ginkgo terpene lactones is 4:1, thus the water-soluble ginkgo biloba extract can be used as a water-soluble ginkgo injection raw material, thereby enlarging the range of application and ensuring the safety, the effectiveness, the stability and the controllability of product quality.

A continuous production method of a water processing agent aminotrimethylene phosphonic acid comprises the following steps: adopting ammonium chloride, formaldehyde, and phosphorous acid as the raw materials, pumping the raw materials into a buffering and dropwise-adding tank from a storage tank, setting the flows of ammonium chloride, formaldehyde and phosphorous acid according to the weight ratio of raw materials in the reactions, pumping a certain amount of aminotrimethylene phosphonic acid into a first reactor as the reaction substrate, then opening a heating valve to heat the first reactor to a certain temperature so as to reflux the reaction substrate in the first reactor, opening a reaction material dropwise-adding valve at the same time, continuously adding materials under a controlled temperature; opening a material discharging valve of the first reactor so as to discharge the reaction mixed materials to a second reactor or a third reactor, when the fist reactor is full; maintaining the temperature, steaming, discharging the materials, and adding a certain amount of reverse osmosis water so as to obtaining the finished product. The continuous production method has the advantages of large output, little energy consumption, little equipment investment, high equipment utilization rate, short production period, and stable product quality.

The invention discloses a processing method of a quickly-ripe low-sodium-salt dry-cured ham. The processing method comprises the following steps of (1) selecting raw materials; (2) performing trimming; (3) performing pickling; (4) performing hanging and performing cleaning; (5) performing low-temperature dehydration; and (6) performing fermentation: enabling dehydrated ham to be sequentially subjected to a low-temperature fermentation stage, a medium-temperature fermentation stage, a medium and high temperature fermentation stage and a high-temperature fermentation stage. Compared with the hamcured with conventional sodium salt or a 30% sodium salt replacement in a conventional report, the quickly-ripe low-sodium-salt dry-cured ham has the advantage that the dosage of the sodium salt is substantially reduced; and quick ripening is performed by a modern technology, so that the processing time of the ham is shortened to 5-6 months from 10-12 months consumed by a conventional dry-cured ham; and in the whole processing course, the temperature and the humidity can be automatically adjusted, and the quickly-ripe low-sodium-salt dry-cured ham can be produced all the year round. Finishedproducts of the quickly-ripe low-sodium-salt dry-cured ham are free from odorous and bad situations and homogeneous in quality, good flavor is kept, besides, the permeation rate of salinity is increased, the content of the sodium salt is notably reduced, the processing cycle is notably shortened, the quickly-ripe low-sodium-salt dry-cured ham meets the demands of consumers at present, the industrialization and the large scale of the dry-cured ham are also facilitated, and the industrialized process of conventional meat products is promoted.

The invention discloses an underwood wild-imitation standardized planting method for radix polygonati officinalis.An excellent species of radix polygonati officinalis is selected, planting is conducted in an appropriate period by selecting appropriate soil and appropriate artificial forest land type, an appropriate field management method is adopted, harvesting and seed reserving are conducted in good time, and appropriate primary processing and storing modes are selected.By means of the method, wild-imitation original-ecology high-yield and high-quality culture is conducted, the product is safe in quality, effective, stable and controllable, standardized large-area planting can be achieved, production cost is low, and benefits are high; the requirements of the Good Agricultural Practice for Chinese Crude Drug (on trail) formulated by State Food and Drug Administration are met; meanwhile, the land utilization rate and the land cropping index can be increased, and a good compound agriculture and forestry ecological system is established.

Provided is an improved sintering process for Jianshui purple pottery. The process comprises the following sintering process that the Jianshui purple pottery to be sintered is placed in a wood-fired kiln, a kiln door is closed, sintering is carried out for 3 hours in a low flame stage at the temperature of 0 to 30 DEG C, sintering is carried out for 4 hours in a medium flame stage at the temperature of 300 DEG C to 700 DEG C, and sintering is carried out for 7 hours in a big fire stage at the temperature of 700 DEG C to 1,140 DEG C; in the whole process from the low flame stage to the big flame stage through the medium flame stage, a flue gate plate of the wood-fired kiln is adjusted to be fully opened to guarantee that an atmosphere in the kiln is not reduced in advance; when the temperature in the kiln reaches 1,140 DEG C, 30 kg of wood bits is continuously and evenly put into the kiln within one hour, the fire is immediately stopped after all the wood bits are put in, all vent ports and flues are closed, and the temperature is reduced till the Jianshui purple pottery can be taken out. According to the process, purple pottery products with rich color changes can be obtained through sintering, sintering time can be shortened, and energy saving and emission reducing are achieved.

The invention relates to a method for extracting raspberry ketone from raspberry. The method comprises the following steps of raspberry extraction, decoloring, concentration, column chromatography isolation and concentration, so as to obtain the raspberry ketone. The method has the advantages that the natural plant raspberry is wide in source, low in production cost and is beneficial to large-scale production; numerous difficulties are overcome by carrying out a lot of practice and grope according to the production status of extracting the raspberry ketone from the raspberry, so that the product quality is effectively improved; furthermore, the utilized production devices are conventional devices, and according to the method, no novel requirement is required for the devices, and the operation of the factory production and the lowering of the production cost are facilitated.