1178 results about "Extraction ratio" patented technology

The invention discloses an edible and medical fungus cell component comprehensive extraction method and use of extract, which belong to the technical field of natural product extraction and application. The method comprises: breaking walls of the cells of the edible and medical fungi by combining an enzymic process and ultrasonic waves; extracting the extract and fungus slag by processes of water extraction, alcohol extraction and fat extraction in different sequences to obtain various nutritive components and bioactive components, such as cellulose, protein, nucleic acid, polysaccharide and fatty acid. In the invention, due to the adoption of a wall breaking-first and extraction-second scheme, the extraction rate of the cell components of the edible and medical fungi is improved considerably; the extract is extracted by water extraction, alcohol extract and fat extraction in turn and the fungus slag is extracted by fat extraction, alcohol extraction and water extraction in turn, so the flavor of the edible fungi is retained effectively; the various cell components of the edible and medical fungi serving as raw materials are extracted comprehensively and further developed; and the extracted components are natural materials, have both nutritive and health-care and pharmacological effects and can be made into various products according to the characteristics of the extracted components.

The invention discloses a process for extraction of astaxanthin in Haematococcus pluvialis. According to the process, wall-broken Haematococcus pluvialis is obtained by using an acid method, and then an astaxanthin extract is obtained through ethanol dehydration and organic solvent extraction. The wall breaking and extraction process provided by the invention has the advantages of easiness, high efficiency, convenient operation, low energy consumption and controllable quality, and the wall breaking rate and the extraction ratio of Haematococcus pluvialis can reach more than 95%. The astaxanthin extract prepared by using the process is a dark red oily viscous substance and can meet requirements for raw materials needed in production of health food, cosmetics and medicines.

The present invention relates to a manufacturing method of refining rice bran top oil, which can effectively refining top oil from the rice bran and satisfy the people requirement to the health dieting. The invention includes the following steps: (1) crude oil filtering; (2) phosphoric acid degumming and light alkali alkali refining; (3) washing, drying; (4) dewaxing; (5) a primary decolorizing; (6) physical deacidification; (7) secondary alkali refining; (8) iron removing; (9) washing; (10) drying; (11) secondary decolorizing; (12) deodorization; (13) degreasing. The invention adopts a mode of combining the physical refining and chemical refining to realize a large-scale production of the rice bran top oil, provides a favorable technique to the rice bran deep-processing, improves the extraction rate from traditionally 55-60% to 75-80%, saves materials and reduces environmental pollution, has huge economic and social benefits. The invention is a major innovation to the edible rice bran oil production.

The invention discloses a technological method for producing high-purity low-iron aluminum sulfate by using coal ash and comprehensively utilizing the coal ash, comprising the following steps of: carrying out mechanical activation, flotation decarburization, magnetic separation for deferrization, aluminum extraction with sulfuric acid, solid-liquid separation, concentration of aluminum sulfate crude liquor, organic alcohol alcoholization for acid rinse, organic alcohol alcoholization for deferrization and aluminum sulfate dewatering and drying on the coal ash to obtain the high-purity low-iron aluminum sulfate with low Fe content. The invention solves the problems on impurity removal and purification of the aluminum sulfate in the recycling process of the coal ash, simplifies the process flow, reduces the energy consumption, solves the technical problem of overlarge accumulation of secondary residue quantity, achieves high extraction ratio of aluminum contained in the coal ash, and realizes the recycling of organic alcohol and sulfuric acid and the comprehensive utilization of side products including unburnt black, magnetic iron powder, iron-containing aluminum sulfate crystals, high-silicon-dust active mineral blending materials or novel silicon-magnesium cement, and the like. The technological method has the advantages of simple process, short flow, easiness for control of a production process, high aluminum extraction ratio, low impurity content of products and stable quality.

The invention relates to a method of extracting pure ultrafine alumina from powder coal ash, which comprises the following: 1 sintering and activating process: Na2CO3 is used as activating agent during sintering; 2. aluminum salt extraction process: in the activated power coal, low-concentration sulfuric acid is selected to perform aluminum salt extraction; 3. leaching and sedimentation process: the solution after sulfuric acid is extracted is leached, the aluminum salt filtrate is added with dispersant, ammonia is used as precipitator so that the aluminum ion is separated out in the form of aluminum hydroxide; 4. heat treatment process: the aluminum hydroxide is cleaned with water and then dried, under different temperature, the heat treatment of the aluminum hydroxide is performed so that the aluminum hydroxide is dehydrated, decomposed, and crystallized, so as to obtain different crystal type alumina powder. The invention has the advantages of simple process, good synthetic benefit and high extraction ratio of alumina.

The invention relates to a beam composition realtime computation method and device receiving apodization parameter, wherein the device which is connected to the signal input end of the beam composition receiving module of an ultrasonic imaging system as an independent accessory comprises a first, second and third multipliers, a first, second, third and fourth adders, a subtracter, a divider, an extraction ratio memory, a receiving aperture memory, an extraction starting point memory, a preset apodization curve memory, an apodization depth counter, a channel counter, a coefficient selector, a data selector, an address processor and a timing control module. The realtime computation of apodization parameter comprises the following procedures: an apodization reference curve with the length being N is preset inside the system; the preset apodization reference curve is extracted at different start and extraction ratio according to depth with the extraction results being used as apodization curves of different depth of each signal receiving and processing channel. Adopting the technical proposal of the invention can save memory resource of the system and obtains faster parameter loading speed during switching prove of the system.

The invention relates to a method for decomposing chromium-containing vanadium slag by using sodium hydroxide molten salt, which comprises the following steps of: weighing NaOH and the vanadium slag in a mass ratio of 2.5:1-6:1; putting the weighed NaOH into a normal pressure reaction kettle, heating to the temperature of between 500 and 600 DEG C, adding the weighed vanadium slag into the NaOH molten salt, introducing oxidizing gas and performing liquid-phase oxidation reaction at the temperature of between 500 and 600 DEG C for 0.5 to 6 hours to obtain reaction slurry after the reaction is finished; diluting by using a diluent until the concentration of the sodium hydroxide in the slurry is 100 to 500g / L to obtain mixed slurry containing the sodium hydroxide, sodium vanadate, sodium chromate and tailings; and performing filtering separation on the mixed slurry at the temperature of between 80 and 130 DEG C to obtain the tailings and aqueous solution containing vanadium and chromium.The decomposition temperature is lower than the conventional sodium treatment roasting temperature, vanadium and chromium resources can be co-extracted, the extraction ratio is high, and the method is easy to operate.

The invention relates to a method for the underground in-situ extraction of a hydrocarbon compound in an oil shale, which comprises the following steps: arranging at least one working well and one production well in an enclosed working region where the hydrocarbon compound in the oil shale is extracted, communicating the bottoms among the working wells by directional drilling after a drilling well enters an oil shale ore layer, injecting water and inert gas water vapor into the working well to form a near-critical water microenvironment, cracking the oil shale into organic compounds with different chain lengths to form an oil-water mixture, lifting the oil-water mixture to the ground through the production well, and obtaining the hydrocarbon compound through an oil-water separating system. The heat utilization ratio is improved through a multi-well integrated heat circulating system, the extraction ratio of hydrocarbon substances is greatly improved through repeated oil-water separating and circulating processes, and the technical process is shortened. A water micro-pool is formed after an oil shale layer is overflowed by water, the cracking of the oil shale can be realized within3 to 5 hours after a near-critical state is reached, and more energy sources and time are saved than an underground dry distillation method.

The invention relates to a method for preparing high-purity rice protein. The method comprises the following steps: sizing mixing and grinding, degreasing, enzymolysis reaction, separating washing and blanching and sterilization. The invention also relates to the high-purity rice protein acquired by using the method, wherein the rice protein contains following components by weight percent: more than 80% of protein, less than 3% of fat, and less than 3% of ash content. The protein extraction ratio is more than 80% and the additional value of rice residue is greatly increased.

The invention discloses a method for preparing low-caffeine high-tea polyphenol tea powder, which comprises the following steps of: extracting and roughly filtering tea leaves, centrifuging filtrate subjected to rough filtration at an ultrahigh speed, adsorbing centrifugate by using macroporous resin, performing graded elution by using aqueous solution of ethanol to separate caffeine from tea polyphenols, concentrating tea polyphenol eluent and drying concentrate. The tea polyphenol content of the low-caffeine high-tea polyphenol tea powder prepared by the method is more than or equal to 85 percent, wherein the catechin content is more than or equal to 60 percent, the EGCG content is more than or equal to 35 percent and the caffeine content is less than or equal to 1 percent. The method has the advantages of simple process, high extraction ratio, low cost and high product quality and safety; and the low-caffeine high-tea polyphenol tea powder prepared by the method can be used for preparing health-care food or cosmetic.

The invention relates to the field of the medicine, in particular to a method for extracting and separating a chlorogenic acid monomer from honeysuckle. The prior art is lack of a method for the mass preparation of the chlorogenic acid monomer from the honeysuckle. In the invention, the technology is realized by the following preparation steps of: (1) soaking by alcohol: putting the honeysuckle into an alcohol solution for soaking, heating, refluxing, filtering and concentrating; (2) degreasing: degreasing the obtained filtrate thrice by adopting a weak-polarity solvent, and taking a water layer; (3) enriching by macroporous resin: enabling a water layer solution obtained in the step (2) to pass through the macroporous resin, washing by water, collecting effluent liquid and water washing liquid, concentrating and regulating the pH value; (4) extracting: extracting a solution obtained in the step (3) by adopting a moderate-polarity solvent, taking an organic layer, concentrating and recovering the solvent to obtain a faint yellow puffy solid substance; and (5) recrystallizing. The invention adopts an alcohol extraction method to enhance the extraction rate and the transfer rate of the chlorogenic acid, the final transfer rate of the chlorogenic acid is as high as 84 percent, and the purity of the obtained product can reach more than 98 percent.

A process for refining astragalus polyose features the combination of microwave extracting, microfilter, ultrafiltration and alcohol deposition, resulting in high output rate and purity, and short period.

The invention discloses a method for preparing aluminum and coproducing cement, and in particular relates to a method for preparing the aluminum and coproducing the cement from flyash, which comprisesprocess steps of: preparing raw slurry, sintering clinker aggregate, precipitating the clinker aggregate, preparing aluminium hydroxide, preparing alumina and preparing the cement from residue generated in the process of precipitating the clinker aggregate. By strictly controlling alkali ratio and calcium ratio, the method can enable the alumina in the flyash to fully react at high temperature and then precipitate effectively under normal pressure, and has the extraction ratio of the alumina above 90 percent. The sintering temperature is 200 DEG C lower than that of a limestone sintering method, the energy consumption is lower than that of the limestone sintering method, and the residue can prepare the cement and is fully utilized to accord with the national policy of environmental protection, energy conservation and recycling economy. The equipment used by the method is common equipment in the alumina industry and cement industry, and is favorable for industrialization.

The invention discloses a method for recycling cobalt and nickel from manganese and cobalt slag, comprising the following steps of: adding water into the manganese and cobalt slag according to a solid-to-liquid ratio of 1: 2 to 5 so that the manganese and cobalt slag becomes slurry, heating, bubbling and stirring to obtain cobalt-nickel foaming slag and ferromanganese sediment, heating the cobalt-nickel foaming slag to a temperature of 80 DEG C to 85 DEG C, washing the cobalt-nickel foaming slag with 0.5 to 2 mol / L of H2SO4 and controlling the pH value of the cobalt-nickel foaming slag to be at 1.5 to 2.5, filtering and then obtaining cobalt-nickel filter cake, curing and leaching with concentrated sulfuric acid on a base that the ratio of cobalt-nickel filter cake (dry-substrate weight) to concentrated sulfuric acid (volume) equals to 1:0.5 to 1.5 so as to obtain a cobalt-nickel solution and finally deeply purifying and extracting according to traditional technology to separate cobalt and nickel. The method can effectively separate Co and Ni from Mn, Fe in manganese and cobalt slag and recycle economic cobalt and nickel from manganese and cobalt slag; the extraction ratio of cobalt and nickel in manganese and cobalt slag is more than 95 percent.

The invention provides an extraction and purification method of cordycepin from Cordyceps militaris, and belongs to the deep-processing technical field of agricultural products. The method comprises the following steps: crushing Cordyceps militaris raw material, mixing the raw material with water at 1:20 raw material / water ratio, performing ultrasonic extraction, and performing centrifugal filtration on obtained extracting solution and pouring in a macroporous resin column at the adsorption flow of 1.8BV / hr; taking 15% methanol aqueous solution as an eluant to perform resin column elution, and decompressing and condensing obtained eluent at the temperature of 60 DEG C by a rotary evaporator to obtain Cordyceps militaris cordycepin concentrate. The method can help realize aqueous solution extraction of the cordycepin from the Cordyceps militaris raw material at low temperature, and the extraction rate reaches 85%; and polysaccharide and protein can be removed from the extract by macroporous resin separation and purification, thus the content of the cordycepin in the extract can reach 10%. The cordycepin in the Cordyceps militaris product has high activity, can be taken as a raw material for producing cordycepin monomer and can also be directly taken as an additive of health products and functional food, thus the cordycepin has wide market development prospect.

The invention discloses a method for preparing chlorogenic acid in Eucommia ulmoides leaves, which comprises the following steps of: crushing the Eucommia ulmoides leaves, performing warm water extraction assisted by cellulose, performing conventional filtration, removing impurities by using an ultrafiltration membrane, performing nanofiltration and concentration, separating and purifying by using macroporous resin, and concentrating and drying to obtain chlorogenic acid powder. The chlorogenic acid in the Eucommia ulmoides leaves is subjected to warm water extraction assisted by cellulose, the extraction rate can reach 95 percent, the water extraction temperature is lower, and the extraction time is shortened; the ultrafiltration membrane is adopted to remove the impurities from the extracting solution and separate other byproducts, the membrane operating process is simple, the membrane flux can be stable for a long time, and the membrane is easy to clean, has long service life and is suitable for industrialization; a nanofiltration membrane is adopted to concentrate the extracting solution from which the impurities are removed, the load of the subsequent process is lightened, and the service life of the resin can be prolonged; the filtrate obtained through nanofiltration has the chemical oxygen demand (COD) value of less than or equal to 100 and can be returned to the production process, and wastewater is not generated basically; and the macroporous adsorbent resin can effectively purify the chlorogenic acid, the purity of the chlorogenic acid in the prepared powder is more than 60 percent and the extraction ratio is more than 1.4 percent.

The invention discloses a method for the ultrasonic extraction of steviosides. Smashed dry leaves of stevia rebaudiana serve as raw material; based on the characteristic that an ultrasonic cavitation can reinforce the extraction of active ingredients in plants, the solvent and the smashed raw materials flow in opposite directions, and the extract of the stevia rebaudiana is prepared by immersed extraction and ultrasonic extraction; white powder of the stevia rebaudiana is prepared by flocculating, filtering, absorbing, decolorizing, exchanging, concentrating, spray drying and the like; the stevioside content of the products is 85 to 98 percent. In the invention, the extraction time is only 10 to 60 minutes; the extraction rate can reach 95 to 99.9 percent; the temperature of the extraction solvent is only 10 to 40 DEG C; and the mass-to-volume ratio of the dry leaves to the solvent is only 1: 10-40 (kg: L). The method has the advantages of short extraction time, high extraction rate, low consumption of solvent, clean and sanitary production process and large scale and industrial continuous production; and the produced stevioside products have high purity and good quality.

The present invention discloses an extract of camellia chrysantha. It adopts the combination of alcohol extraction and water extraction, and adopts the ultrasonic oscillation process to raise extraction efficiency, its all the processes adopts low-temp. condition below 60 deg.C so as to effectively protect various components with health care function and aromatic substance in the camellia chrysantha. Its extraction rate is up to above 90%.

The invention belongs to the technical field of seaweed fertilizer, and more specifically relates to a preparation method of a composite seaweed fertilizer, and the composite seaweed fertilizer. The preparation method comprises following steps: 1, pretreatment; 2, enzyme extraction; 3, microorganism extraction; and 4, fertilizer preparation. The preparation method is capable of maintaining the effective active ingredients of seaweed as much as possible, and increasing extraction ratio of the effective ingredients greatly.

This invention discloses a method to remove high-concentration hydroxybenzenes from coal-gasification sewage, that is, coal-gasification sewage containing hydroxybenzenes and isobutyl methyl ketone as extracting solvent are mixed and separated so as to obtain solvent phase and remnant aqueous phase liquid. Solvent and crude hydroxybenzene are extracted from the solvent phase by distillation. Multiple-class reflux extraction is carried out towards remnant aqueous phase liquid and rudimental solvent is further extracted from the extract. Facilities involved in this method include a static mixer, an oil-water separator, a hydroxybenzene distillation tower and an extraction tower. Extracting coal-gasification sewage containing high-concentration hydroxybenzenes with the method provided by this invention, total hydroxybenzene extraction ratio can be as high as 92%. Besides, it also has the advantages of simple technique, soft conditions and recyclable extraction solution.

The invention discloses a cashmere carding machine, which comprises a feeding mechanism, an opening mechanism, a coarse wool and impurity removing mechanism and a carding mechanism, wherein the coarse wool and impurity removing mechanism comprises a plurality of coarse wool and impurity removing units, and each coarse wool and impurity removing unit comprises two coarse wool and impurity removing subunits, each coarse wool and impurity removing subunit comprises a licker-in, a cylinder and a doffer, the licker-in, the cylinder and the doffer are arranged in a straight line, the coarse wool and impurity removing unit also comprises a bottom delivery flat curtain used for collecting dropped material, the front side of the bottom delivery flat curtain is provided with a material collecting groove, a condenser is arranged between two adjacent coarse wool and impurity removing units, and the material collecting grooves in the coarse wool and impurity removing units are connected with the feeding mechanism or the condensers through a conveying fan and a feedback pipeline. By the cashmere carding machine, the removing effect of impurities in raw material fiber can be further improved, and machine is conductive to improving the quality of a finished animal fiber product and at the same time helps to improve the extraction ratio of dehaired wool.

The invention discloses a production method of natural hirudin. The production method is characterized by comprising the steps of extracting, acid depositing, heating, dehydrating and drying natural hirudin liquid, wherein the content of active ingredients of the obtained natural hirudin powder can be detected through Markwardt direct thrombin titration so that the quality is stable and the curative effect of the product is ensured. The method has the characteristics of simple process, high extraction ratio, low production cost, high product purity, long storage period and the like and can beused for providing safe and high-quality raw materials for foods, health-care foods, medicines or cosmetics.

Provided is a method for preparing high-purity magnesium oxide with high boron salt lake brine. Salt lake brine is evaporated through a salt pan, concentrated to crystallize potassium sulfate, sodium chloride and potassium chloride and is drawn with lithium in adsorption mode so as to obtain master sauce brine containing magnesium and boron. Concentrated sulfuric acid is added into master sauce brine for reacting, and coarse boracic acid and acidized brine are obtained after cooling and filtering. Potential of hydrogen (pH) value of acidized brine is adjusted to be 5.5-6.5, and acidized brine passes through ion exchange resin adsorbing boron. When boron concentration in effluent liquid is higher than 5 mg / L, brine is not injected, boron-removed brine is obtained, then boron-removed brine and ammonium chloride solution are filled with ammonia for stirring and to produce magnesium sedimentation reaction, reaction temperature ranges from 60 DEG C to 80 DEG C, pH ranges from 7.5 to 8.0, the reaction is stopped when concentration of free ammonia reaches 1.8-2.2 mol / L, and magnesium hydroxide and magnesium sedimentation mother solution are obtained. Magnesium oxide is obtained by calcining magnesium hydroxide, content of magnesium oxide is larger than 99.8%, and magnesium extraction ratio is larger than 90%. Sedimentation mother solution adopts lime to steam ammonia, and generated ammonia circulates to magnesium sedimentation reaction. Mother solution after ammonia steaming is evaporated, concentrated and crystallized to obtain calcium chloride. Ion exchange resin adsorbing boron is washed, analyzed and regeneratively cycled for use. Boron-containing analysis solution is concentrated and cooled to pick up coarse boracic acid, and coarse boracic acid is recrystallized to obtain refined boracic acid with purity larger than 99%. High-purity magnesium oxide prepared by the method is high in purity, good in economic benefit, free of environment pollution, strong in operability and favorable for industrial production.

The invention relates to a process for extracting medicinal herb component, specifically a process for extracting chlorogenic acid from shoe-shaped ingot maple leaves, wherein low-temperature extraction is employed and under the conditions of controlled time, pH value and feed liquid ratio. The advantages of the process are high leaching ratio, simplicity of operation, low cost, and no toxin.

The invention provides a system and a method for extracting microprotein from sludge through hydrolysis, relating to the field of sewage and sludge treatment. The system comprises a sludge storage device, a sludge conveying device, a mixing device, a hydrolysis reaction device, a flash distillation device, a solid-liquid separation device, a residue collecting and conveying device, a filtrate collecting device, a preheating device, an evaporation concentration device, a drying device, a waste gas collecting device, a waste gas treatment device, a waste gas discharge device and a process waterrecovery device. The extraction method comprises the following steps of: completely hydrolyzing activated sludge, flash distilling, cooling, carrying out solid-liquid separation, and concentrating the filtrate to obtain the microprotein solution product with the concentration of 5%-40% by mass percentage or drying to obtain a microprotein dry powder product. When used for extracting microprotein from sludge through hydrolysis, the invention has the advantages of low energy consumption, high production efficiency and high extraction ratio of microprotein, and the microprotein products have excellent performance and better foaming performance than foaming agents in market.

The invention relates to a method for decomposing vanadium slag under normal pressure and extracting vanadium and chromium by adding a carbon-containing substance into a sodium hydroxide solution. The method comprises the following steps of: uniformly mixing the vanadium slag and the carbon-containing substance, and adding the mixture, water and NaOH into a normal pressure reactor; introducing oxidizing gas for oxidization reaction, and diluting reaction slurry obtained by the reaction by using a diluent to obtain mixed slurry containing NaOH, sodium vanadate, sodium chromate, sodium silicate and tailings; and filtering and separating the mixed slurry to obtain the tailings, and an alkaline solution containing the vanadium and the chromium. The operating temperature of the method is below the boiling point of the solution, and the method can be implemented under normal pressure, and is easy to implement and high in safety; and the operating temperature is far lower than the temperature of the traditional vanadium extracting process, the extraction ratio of the vanadium is high, the chromium can be partially extracted synchronously, the total vanadium contained in the tailings is 0.2 to 0.6 weight percent (based on V2O5), and the leaching rate of the chromium is 8-20 percent.

The invention relates to a method for comprehensively extracting effective ingredients in tea. The method comprises the following steps of: with a faintly acidic water solution as a main extraction solvent and a certain amount of organic solvent as an auxiliary extraction solvent, carrying out step-by-step extraction on water extracts to obtain four effective ingredients, namely tea polyphenol, caffeine, tea polysaccharide and theanine; and meanwhile, extracting tea protein from tea residues by using an alkali dissolution and acid deposition method. According to the method, as water is used as the main solvent, the cost is low, the reactions are mild and active ingredients are favorably preserved; as a certain amount of organic solvent is used as the auxiliary extraction solvent, the problems of overhigh cost and product pollution caused by use of a large amount of organic solvents are solved; meanwhile, five effective ingredients, namely the tea polyphenol, the tea polysaccharide, the caffeine, the theanine and the tea protein are extracted, and therefore high extraction rate, high purity and high utilization rate of tea are achieved; the solvents are recycled in the extraction process, so that the preparation cost is reduced; and no alkali and acid waste liquor is discharged in the overall process, and therefore the method is environment-friendly. The overall preparation flow is high in efficiency and low in cost, and therefore the method has a favorable application value.

The invention discloses a method for extracting high purity alumina and silica gel from a coal gangue, which adopts the following steps: roasting for activation, leaching and filtrating for separation, carbon separating, sodium carbonate and water recovering, silicon-aluminum separating, thermal decomposing, hydrochloric acid recovering and the like, so as obtain the high purity alumina and the silica gel. The CO2 generated in the whole process as well as alkali, acid and water used in the extraction process can be recovered, so as to realize the cyclic utilization. The method has the characteristics of high extraction ratios of the alumina and the silica gel and small quantity of discharged slag. The deironing link in the process for extracting the alumina and the silica gel from the coal gangue, thereby not only simplifying the process procedure and greatly lowering the cost.

The invention discloses a method of increasing the extraction yield of trehalose, which belongs to sugar industry technical field. Adopting the techniques of hydrogenation and chromatographic resolution, the microorganism or enzyme are used for transforming the starch and the trehalose obtained undergoes the hydrogenation reaction with the mixing solution of the maltose, glucose and maltotriose; therefore the impurity in the mixing solution produces the maltitol, sorbierite and maltotriitol; the trehalose has no reducibility, and is stable in the hydrogenation reaction; and the trehalose is separated from the maltitol, sorbierite and maltotriitol in the mixing solution by the chromatographic resolution technique simulating the moving bed; and the purity and extraction yield of the trehalose are largely increased; the trehalose is crystallized by cooling, and the trehalose product is finally obtained. Compared with the technique of producing the trehalose by adopting the original microorganism or enzyme method, the technique of the invention increases the extraction yield over 80 percent, the sub product maltitol has a comparatively high utilization value; and therefore the production cost for producing the trehalose and the market price are reduced, which makes sense for increasing the market competition of trehalose.

The invention provides a preparation process of cold-pressed tea seed oil. The preparation process comprises the following steps of: firstly smashing tea seed cakes, then adding a certain volume of water, mixing, further adding a certain amount of alkaline protease to perform enzymolysis for a period of time, and performing enzyme deactivation, so as to obtain an enzymolysis solution; adding tea seed oil subjected to infusion refining, heating to 130-145 DEG C, and performing combined reaction for 30 minutes; and finally cooling, and filtering to obtain camellia oleosa seed oil. By virtue of detection, the cast of the cold-pressed tea seed oil prepared by the process is as follows: yellow color 30 and red color 2.1; the acid value is o.4mg KOH / kg; the peroxidation value is 7.8mmol / kg, and the cold-pressed tea seed oil fulfills the standard of national-level edible oil; and the extraction ratio of the tea seed oil under such conditions is 38.71%, and is 9.85% higher than that obtained by a traditional method.