4070results about How to "Reduce extraction time" patented technology

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system partcomprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

The effective plant component extracting process includes mechanically crushing the mixture of solid plant material and proper amount of chemical assistant, and the subsequent extraction of the effective component with water or alcohol. The mechanical crushing can produce micro shearing strain in the interface, break cell wall, expose fresh cut surface and produce mutual adsorption and other action between the grain clusters and molecular groups of the chemical assistant and the effective component, so as to alter the microscopic performance of the effective plant component, raise the leached amount by 80-400 %, short the extracting period greatly, raise the extracting efficiency obviously raise the extraction specificity and selectivity, minimize the organic solvent in use, lower the extraction cost and raise the bioavailability of the extracted matter.

The invention provides an extraction method and a device used for extracting ultrasonic reinforced sub-critical water of effective component of a natural outcome. The method is mainly characterized in that a pre-disposed raw material is arranged in an extraction kettle; the sub-critical water is taken as an extraction solvent to carry out the exaction under the conditions of 1 to 20MPa of extraction pressure, 50 to 500W of ultrasonic power and 20 to 80KHz of ultrasonic frequency. The method has high extraction efficiency and short extraction time. The device is mainly characterized in that the extraction kettle is provided with an ultrasonic reinforced part which comprises an ultrasonic generator and an energy changing head; the ultrasonic generator is arranged on the external surface of the extraction kettle and at the upper part of the extraction kettle; the energy changing head and the extraction kettle cover are processed into a whole; the piezoelectric ceramic wafer of the energy changing head is arranged at the upper end of the extraction kettle cover; the variable-spoke rod of the energy changing head is directly arranged in the extraction kettle by the extraction kettle cover. The device can carry out selectable exaction of the articles to be extracted by changing the extraction parameters (temperature, pressure, time, etc.), thus realizing static extraction or dynamic circulation extraction.

The invention relates to a Pu'er tea extract, and a preparation method and application thereof. The Pu'er tea extract is high in active ingredient content and can reduce blood sugar and blood fat obviously. By the preparation method of the Pu'er tea extract, the active ingredients are completely and effectively converted and dissolved out and the original flavor of the Pu'er tea is maintained. The process of the Pu'er tea extract has the advantages of guaranteeing the clarity of the finished products which are dissolved in cold water and hot water and reducing the work load of later centrifugation, along with low cost, industrialization and stable and controllable quality.

The invention discloses an ultrasonic-assisted tea oil extraction method using subcritical CO2, comprising the steps as follows: (1) taking dry tea seed, hulling, crushing, and placing in an extraction kettle; (2) injecting the subcritical CO2 into the extraction kettle to mix with the tea seed; (3) extracting the raw material for 0.5-5 hours; (4) decompressing and evaporating so as to completelygasify the subcritical CO2 liquid, wherein the temperature in evaporation process is controlled at 30-70 DEG C, and finally discharging the extracted tea oil from the bottom of a separation kettle. The method has the advantages that (1), the advantages of the subcritical CO2 extraction technology and the ultrasonic extraction technology are sufficiently utilized to shorten the extraction time andimprove the extraction yield; (2), the work pressure is low, and the natural activity of heat-sensitive material cannot be influenced since the extraction temperature is less than 30 DEG C, and the nutritional value and quality of the tea oil are improved; (3), the device cost is low, the refining process is less, the tea oil loss is less and the product oil yield is high; (4) a natural green food is obtained since the CO2 solve is residue-free.

The invention relates to a method for measuring alkaloid in tobacco and tobacco products, which is characterized by dissociating alkaloid from the tobacco and tobacco products by using sodium hydroxide solution, extracting the alkaloid from samples by using triethylamine / trichloromethane solution, and detecting content of five kinds of alkaloid with GC-MS ( Gas Chromatograph-Mass Spectrum) quantitative analysis. Compared with other methods for analyzing the alkaloid, the invention has the advantages that alkaloid is separated from the tobacco by DB-35MS chromatographic columns so as to separate nornicotine and myosmine in the tobacco and accurately quantify target matters; batch sampling is carried out on the separation of nicotinamide and other alkaloid so as to detect the nicotinamide with high content in the tobacco and meet the quantitative analysis of other alkaloid with low content; the standard working curves of standard matters are separately compounded so as to avoid influence on quantization of other alkaloid by alkaloid catabolite existing in the standard samples. The method is simple and convenient and has the advantages of good repeatability, high analyzing and measuring sensitivity, and accurate quantization.

An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The container is capable of holding the material while an opening in the container allows the entrance of water into the container upon immersion of the container in the water. The heated kettle incorporates structure to hold the container out of the water until the water reaches an appropriate extraction temperature and to immerse or withdraw the container into or from the water as is necessary to accomplish the extraction.

The invention discloses a method for extracting various active ingredients from dendrobium officinale. The method comprises the following steps of: carrying out flash-extracting; centrifuging the flash-extracted crude extracting solution; carrying out alcohol precipitation and tertiary dehydration to the centrifuged liquid supernatant to obtain free polysaccharide; combining the centrifuged precipitates with polysaccharide and alkaloid extract; and extracting the various active ingredients from the dendrobium officinale, so that the comprehensive utilization of the dendrobium officinale resources is realized. The method disclosed by the invention is high in yield, capable of greatly shortening the extraction time during the extraction process, capable of avoiding the influences of thermal destruction to the products, capable of reducing the production cost and applicable to large-scale production.

The invention relates to the field of mine support and gas extraction, in particular to a gob-side entry retaining and sectional coal seam gas pre-extracting method for a single low-permeability outburst coal seam. A plurality of bedding drill holes are drilled in an air inlet crossheading and an air return crossheading of a working surface towards the working surface in the inclined direction of the coal seal in a parallel mode, and a pneumatic gas extraction device is used for carrying out gas extraction; gas of an adjacent working surface is extracted along the inclined bedding drill holes of the coal seam in the downstream direction of a transportation crossheading of the working surface, and an extraction pipeline is communicated for extracting gas of the coal seam of the adjacent working surface; after extraction, robbing is carried out on the coal seal of the working surface; extraction is not stopped until finish, and the steps are repeated until extraction of the coal seam is finished. According to the method, coal mining without pillars is achieved, the recovery rate of coal is improved, the total gas extraction time is saved, the gas extraction effect is improved, and coal mining and gas extracting are achieved at the same time.

The invention discloses a high pressure liquid-liquid extraction method, which comprises the step of sealing and refrigerating solution requiring extraction and organic extraction solvent in a pressure resistant container, the volume of water increases below 4 DEG C and in the solidification process of water to ice, so the pressure in the pressure resistant container increases to improve the dissolubility of organic impurities in organic solvent during extraction, and simultaneously, based on the principal of zone melting, the organic impurities are squeezed out of ice in the solidification process of water to ice, thereby further enhancing the extraction efficiency. The liquid-liquid extraction method has the advantages of being low in labor intensity, simple and convenient in operation and short in extraction time, and can improve the extraction effect remarkably.

An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The container is capable of holding the material while an opening in the container allows the entrance of water into the container upon immersion of the container in the water. The heated kettle incorporates structure to hold the container out of the water until the water reaches an appropriate extraction temperature and to immerse or withdraw the container into or from the water as is necessary to accomplish the extraction.

An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The container is capable of holding the material while an opening in the container allows the entrance of water into the container upon immersion of the container in the water. The heated kettle incorporates structure to hold the container out of the water until the water reaches an appropriate extraction temperature and to immerse or withdraw the container into or from the water as is necessary to accomplish the extraction.

A method for making ice coffee comprises the following steps: extracting coffee by using water at a temperature that is in a range of 35° C. to 55° C., at a normal brewing pressure that is in a range of ambient pressure to 1.5 bar, and at an extraction time that is shorter than 60 seconds, and supplying a quantity of ice to the beverage which is obtained as a result of this extraction process, in order to get the ice coffee at a temperature at which it is ready to drink. An appliance for carrying out the method may also be adapted to make hot coffee, so that a user may choose which type of coffee he / she would like to receive from the appliance.

The invention provides a method for extracting polysaccharides from bagasse, the method is: after degreasing the bagasse, using one or more of cellulase, papain and pectinase at pH 4-6, Hydrolyze at 40-80°C for 0.5-1.5 hours, then treat with ultrasonic waves with a frequency of 59KHz for 0.5-1.5 hours, filter, and finally use ethanol to precipitate polysaccharides in the filtrate. The method of the invention adjusts the type and amount of enzymes and the technological conditions of enzyme treatment and ultrasonic extraction on the basis of the process of extracting fungal polysaccharides, and finds a low energy consumption and high-efficiency method for extracting bagasse polysaccharides.

A method for quickly extracting lycopene belongs to the technical field of food ingredients. The present invention extracts lycopene from raw materials rich in lycopene. After preliminary treatment of the raw materials rich in lycopene, ultrasonic / microwave collaborative technology is used to assist solvent reflux to extract lycopene, and the lycopene oleoresin is obtained after concentration. products; and recover solvents. The method of the invention has simple steps, greatly shortens the extraction time, and avoids the loss of lycopene during the extraction process; the extraction rate is high, and the highest extraction rate can reach 97%; the extraction process adopts a closed system, consumes less solvent, reduces costs, and at the same time increases It ensures the safety of production; using microwave as the heating source, the energy directly acts on the extraction system, reducing the waste of energy and having the characteristics of energy saving.

The invention discloses a depressurized extraction method for cutting through a roof or a floor of a coal seam by an abrasive water jet, which comprises the following steps: a. drilling a bedding drill hole to set depth on the roof or the floor of a coal-rock mass or a hard layer by using a drilling machine through a drill stem and a slotting drill bit; b. delivering a high-pressure abrasive water jet of which the pressure is 25-30MPa to the slotting drill bit through the drill stem, wherein the drill stem rotates in situ; forming a radial slit on the hole wall of the bedding drill hole, wherein the slit penetrates the roof or the floor of the coal-rock mass or the hard layer and a soft layer; c. enabling the drill stem to rapidly retreat for 1.5-3m so as to form a new slit; d. repeating the step c until a plurality of radial slits are formed on the bedding drill hole, and moreover, reserving a safety rock pillar of at least 5m at the slit located at the position of the orifice of the bedding drill hole at a certain distance from the orifice; e. retreating the drill stem and the slotting drill bit and sealing the hole; and f. extracting gas by a gas extraction system. The depressurized extraction method for cutting through the roof or the floor of the coal seam by the abrasive water jet has the beneficial effects that the drill hole does not have potential safety hazards and is easy to form; a hole sealing effect is good; the time of reaching the standards of extraction is short; the production efficiency is high; and the extraction is safe.

The invention provides a method for separating high-purity anthocyanin monomers from black rice. The method comprises the following steps of: grinding 5 to 8 percent of episperm on the outer layer of black rice and brown rice to obtain black rice pericarp, leaching anthocyanin in the black rice pericarp by acidized ethanol, and extracting and defatting petroleum ether; performing primary purification of ethanol extracts of the black rice pericarp by using macroporous resin; separating the anthocyanin in coarse extracts of the anthocyanin of the black rice pericarp by the medium pressure preparation liquid phase chromatographic technique, collecting two leading anthocyanin components, which are cyanidin-3-glucoside and paeonidin-3-glucoside, in the black rice pericarp respectively according to the obtained chromatogram, and performing rotary evaporation of eluent at a temperature of below 45 DEG C until all methanol is gone, and performing freeze-drying to obtain powder of the anthocyanin monomers.

The invention discloses a method for extracting high-purity mogroside V from siraitia grosvenorii, and relates to the extraction method of the mogroside V. The method includes the specific steps: raw material pretreatment, extraction, centrifugation, enzymolysis, ultrafiltration, nanofiltration, decolorization, concentration, microwave drying, and crushing. The membrane technique is adopted for separation and purification, only pure water is used as a solvent, an organic solvent is discarded, and the method has the advantages of simple operation, safe and environmental-protection products, simple process, high quality and low price, and can realize the continuous large-scale industrial production.

The invention discloses a device and a method for extracting effective components from a natural plant by a high-pressure spraying reverse-flow process. The method comprises the steps of: after the device is connected, removing impurities of a natural plant to be extracted and smashing, putting the smashed natural plant to be extracted in a stirring pot and adding a soak solution in the stirring pot to obtain material suspension, adding an extraction solvent into the extracting pot, spraying the prepared material suspension to be mist-state drops so as to perform spraying extraction, extracting by a high-pressure spraying reverse-flow, and finally, using a centrifugal machine to remove solid impurities, reducing pressure to concentrate to obtain a product by spraying drying, microwave drying or vacuum drying. With the adoption of the device and the method for extracting the effective components of the natural plant by the high-pressure spraying reverse-flow process, the production efficiency can be obviously improved, the use ratio of the device is improved, a plurality of devices can be used for extracting via a dynamic cycle mode, the extracting process does not need to be heated and is performed at a normal temperature, so that the damage of the effective components in the high-temperature heating process is avoided; and the device is low in investment and running costs.

The invention relates to a millimeter wave radar and vision cooperative target detection and identification method based on a neural network. A millimeter wave radar can obtain information such as theposition and the speed of an object by transmitting and receiving millimeter waves. A camera can obtain a visual image of an object. The position information obtained by the millimeter wave radar ismapped to the image. The region of interest is delineated in the image feature map. The region of interest is sent to the deep learning neural network to be processed, and the identification and positioning information of the target can be obtained. According to the invention, a millimeter wave radar and visual processing combined mode is adopted to complete target detection and recognition tasks.By means of a deep learning neural network technology, the object positioning time is shortened, and the recognition accuracy is improved.

The invention discloses an ultrasonic supercritical combined extraction technology for tea polyphenol. The ultrasonic supercritical combined extraction technology mainly comprises the following steps: 1, crushing tea leaves to form paste syrup; 2, processing the syrup by adopting an ultrasonic wave with high power density; 3, extracting high-purity tea polyphenol by supercritical CO2; and 4, settling by mist spray in a high-temperature room, so as to form the high-purity tea polyphenol. The tea polyphenol is extracted by adopting the technology, so that the extraction rate of the tea polyphenol can be greatly increased, meanwhile, the extraction time is greatly shortened, application of energy is reduced, the value of tea dust is developed, and thus the ultrasonic supercritical combined extraction technology has good environment-friendly significance and economic significance.

The invention discloses a preparation method of traditional Chinese medicine ultrafine formula particles. The preparation method comprises the following steps that: single Chinese medicinal material or traditional Chinese medicine decoction pieces are partially ultrafine-crushed into ultrafine powder, the other parts are coarse-crushed, extracted, concentrated, dried and crushed to obtain dry extract powder, the ultrafine powder and auxiliary materials are added to obtain mixture, and the obtained mixture is mixed uniformly, palletized, granulated and subpackaged. The traditional Chinese medicine ultrafine formula particles is characterized in that the characteristics of the traditional Chinese medicine ultrafine decoction pieces of saving medicine materials and being controllable in quality and convenient in administration. Compared with the traditional Chinese medicine formula particles, the preparation method better preserves the medicinal properties of the traditional Chinese medicines, has the advantages of little used amount of auxiliary materials, convenient identification, benefit to measuring the content of index ingredients, preserves the advantages that the traditional Chinese medicine decoction piece can be added and reduced according to the disease and the traditional decoction has unique curative effect, also overcomes the defects of troublesome decoction and inconvenient administration, and has advanced technique and controllable quality. The invention also discloses a processing method of the Chinese medicinal material, which extracts the raw medicinal materials partially, carries out ultrafining treatment partially and then carries out mixing. The method can obvious improve the utilization ratio and leachability of the Chinese medicinal materials.

The present invention provides a method for extracting cannabidiol, and belongs to the technical field of industrial extraction. The method comprises the following operation steps of drying the flowers and leaves of a mariguana plant, grinding and crushing, performing reverse extracting on the crushed coarse powder and a solvent in a reverse extracting device along the opposite directions, and enabling the solvent to extract the effective components of the coarse powder out of an extracting solution; performing pressure-relief heating on the extracting solution, and volatilizing the excessiveethanol in the extracting solution, so as to obtain a concentrated solution of cannabidiol; adding purified water into the concentrated solution of cannabidiol, diluting, eluting by a chromatography column in a gradient way, and collecting a target eluting solution; combining the target eluting solution, and performing pressure-relief concentrating at the temperature of 50 to 70 DEG C, so as to obtain a secondary concentrated solution of cannabidiol; adding 90%w / w ethanol over-saturated solution into the secondary concentrated solution of cannabidiol, obtaining a crystallized product, washingby the purified water, and drying, so as to obtain a cannabidiol product. The method has the advantages that the method can be applied to large-scale continuous production; the working is continuous without interruption; the output is high; the energy source is saved; the safety and reliability are realized.

The PAHs extraction purification determination method in the soil relates to 18 trace PAHs analysis and determination method in the soil. Using automatic Soxhlet extraction instrument to extract PAHs organic in the soil samples, and then using silica gel column chromatography to purify the extracted liquid, remove the polar and non-polar interference during extraction, and finally, using HPLC (with diode array detector) to analyze qualitatively and quantitatively 18 PAHs. In this invention, the extraction solvent consumption is small, and it can be used for large volume sample extraction, with quick sample analysis speed, low-cost sample pretreatment, and for the 5 group 13 isomers in 18 PAHs, it can not only accurately qualitatively but also accurately quantitatively determine, with low detection limit, high sensitivity, and with the exception of fluorine and perylene, the detection limit of the other 16 PAHs all below 10ng / g-dw. It is a rapid, sensitive and accurate analytical method for the trace PAHs, applied to farmland, wasteland, urban green belt and other soil.

The invention discloses a kit for extracting bacterial plasmid DNA (deoxyribonucleic acid) by magnetic beads, and an extraction method thereof. The kit comprises six components: a bacterial resuspension solution, a cracking solution, a neutralizing solution, a magnetic bead combining solution, a washing solution and an eluting solution. The extraction method of the kit comprises the following steps of: resuspending bacteria, cracking, neutralizing, combining with magnetic beads, washing and eluting. The plasmid DNA extracted by the invention has high purity and complete fragments, and the extraction process is convenient, quick, efficient and safe.

The invention discloses a preparation process for extracting active ingredient of natural plant by supersonic, which comprises the following steps: firstly, cleaning and removing dust; secondly, crushing; thirdly, steeping: placing the crushed natural plant raw material to be extracted into a material mixing tank with a mixer for continuously mixing, adding steeping fluid in the natural plant rawmaterial to be extracted in the material mixing tank and obtaining material mixture after mixing and stirring; fourthly, supersonically extracting: passing the material mixture circularly continuously through the inner part of a supersonic extraction device by a circulation pipe between the material mixing tank and the supersonic extraction device and performing the continuous, circulated and supersonic extraction; fifthly, filtering, sixthly, reducing and concentrating. The invention saves time and labor, can obviously improve the product quality and the product yield, has short extraction time, high extraction efficiency, and low temperature during the extraction without heating, and prevents effective ingredient being damaged when heating at high temperature.

The invention discloses a novel method for preparing wheat bran dietary fibers by taking wheat bran as a raw material. The wheat bran dietary fibers are dietary fibers enriched with araboxylan and the content is more than 16.08%. The novel method takes the wheat bran as the raw material and sequentially comprises the following process steps: pre-treating the raw material; rapidly extracting with an alkaline solution; carrying out ethanol precipitation; adding water to suspend again and blasting by steam; hydrolyzing compound protease; hydrolyzing compound amylase; carrying out secondary alcohol precipitation; and sieving. The dietary fiber product has high wheat bran dietary fiber yield and dietary fiber purity, and also has high content of araboxylan and high content of soluble dietary fibers; the product has good functional properties including water binding capacity, viscosity and the like, and has a plurality of physiological functions of relaxing bowel, controlling blood glucose, lowering blood fat, adjusting human immunity and preventing colon cancer and the like, so that high-quality raw material guarantees are provided for widely applying the wheat bran dietary fibers to foods.

The invention discloses an extraction method of pawpaw polyphenol. The method comprises the following steps: firstly washing and denucleating pawpaw, cutting into small blocks for standby use, then after mixing the pawpaw small blocks with low congruent melting reagent-water mixed solution, using a stamping machine, preparing into pulp, using a microwave-ultrasonic technology to treat the pulp, filtering to obtain a filter liquor, finally adding salt into the filter liquor, carrying out vortex centrifugal to form an aqueous two phase, after taking the lower phase of the aqueous two phase, adding a certain amount of methyl alcohol therein, carrying out vortex centrifugal, separating a methyl alcohol upper phase, and evaporating a solvent to obtain an extractive rich in pawpaw polyphenol. The pawpaw polyphenol is extracted by adopting the extraction method, the extraction efficiency of the pawpaw polyphenol can be obviously improved, the extraction time is saved, the using of an organic solvent can be reduced furthermore, and the extraction method is more environment-friendly. Moreover, the polyphenol extractive obtained in the invention can be directly applied to the products such as toothpastes, facial cleansers, shampoo, liquid makeup and hand cream without subsequent purification, and the used product has efficient oxidation resistance.

The invention relates to a polysaccharide buccal tablet prepared from Camellia nitidissima, which mainly comprises the following raw materials: polysaccharide substances extracted from the Camellia nitidissima, a sweetening agent, trehalose, citric acid and the like. The preparation method comprises the following steps: adopting supersonic waves to leach the Camellia nitidissima first, adopting a nano-filtration method to perform concentration production of a concentrated Camellia nitidissima solution, performing spray drying, tabletting and package, and obtaining the product. The product has the functions of reducing blood sugar, blood pressure, blood fat and cholesterol in serum, inhibiting tumor growth, preventing atherosclerosis, activating various enzymes in human body, improving the immunological competence of the body, prolonging senescence, improving digestion of intestinal canals, and the like, has complete health-care functions, is suitable to be eaten by common people, and has obvious health-care effect.