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62 results about "Supercritical fluid extraction" patented technology

Supercritical fluid extraction (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent. Extraction is usually from a solid matrix, but can also be from liquids. SFE can be used as a sample preparation step for analytical purposes, or on a larger scale to either strip unwanted material from a product (e.g. decaffeination) or collect a desired product (e.g. essential oils). These essential oils can include limonene and other straight solvents. Carbon dioxide (CO₂) is the most used supercritical fluid, sometimes modified by co-solvents such as ethanol or methanol. Extraction conditions for supercritical carbon dioxide are above the critical temperature of 31 °C and critical pressure of 74 bar. Addition of modifiers may slightly alter this. The discussion below will mainly refer to extraction with CO₂, except where specified.

Recycled slurry preparation method based on recycled ceramic casting diaphragm

PendingCN121202580ASlurryLow temperature plasma
The invention discloses a regenerated slurry preparation method based on recycled ceramic casting membranes, and belongs to the technical field of ceramic slurry preparation, and the method comprises the following steps: S1, pretreatment, fine crushing and deep extraction, and supercritical CO2 fluid extraction after crushing treatment; s2, thermal degreasing and activation: step-by-step temperature control removal and surface modification step-by-step heating thermal degreasing: in the first stage, the temperature is 150-250 DEG C, and heat preservation is performed for 1-2 hours; in the second stage, the temperature is 300-400 DEG C, and heat preservation is conducted for 0.5 h; s3, a plasma surface activation process: putting the ceramic powder into low-temperature plasma treatment equipment, introducing a mixed gas of argon and oxygen as a working gas, and treating under the action of specific radio frequency or microwave power; s4, slurry reconstruction, precise formula and optimized dispersion gradient powder mixing, wherein regenerated ceramic powder and new ceramic powder are mixed; and constructing a dispersion system: adding a solvent and a composite dispersant, and carrying out dispersion ball milling.
Owner:JUNYUAN ELECTRONIC TECHNOLOGY (HAINING) CO LTD

Acne removing and repairing composition based on six-dimensional synergistic effect

The invention relates to the technical field of daily chemical and skin external preparations, in particular to a six-dimensional synergistic effect-based acne removal and repair composition, which is prepared from the following active ingredients in parts by weight: 1 to 10 parts of sturgeon caviar extract, 0.1 to 10 parts of chlorogenic acid, 0.1 to 20 parts of 4-tert-butyl cyclohexanol and 0.1 to 20 parts of willow extract. The sturgeon caviar extract is prepared by supercritical CO2 fluid extraction, the willow extract is treated by a synthase process, the content of salicin is not less than 1.5 wt%, and at least one active component in the composition is subjected to supramolecular inclusion modification; the preparation method comprises the following steps: sequentially preparing the extracts and components, sequentially mixing, and finally carrying out an inclusion reaction. The composition constructs a full-link acne removal and skin health maintenance system through a six-dimensional synergistic effect of bacteriostasis, oil control, anti-inflammation, allergy relief, cutin dredging and repairing, has the characteristics of efficient acne removal, mildness, safety and low recurrence rate, is suitable for various skin types such as sensitive acne skin, and can be widely applied to acne removal products of various dosage forms.
Owner:BEAUTY GUARD (XIAMEN) BIOTECHNOLOGY CO LTD

Composition for growing and nourishing hair as well as preparation method and application of composition

PendingCN121265512ACosmetic preparationsHair cosmeticsApoptosisLigustrum vulgare
The invention discloses a composition for growing and nourishing hair as well as a preparation method and application thereof. The composition is prepared from various components including 20 to 30 parts of cacumen biotae extract, 2 to 7 parts of eclipta prostrata extract, 3 to 9 parts of specnuezhenide and the like. The preparation method comprises the steps of raw material pretreatment, active ingredient extraction, compound blending, microcapsule embedding and preparation forming, the cacumen biotae is subjected to a supercritical extraction process, and the eclipta prostrata is subjected to an ultrasonic-assisted enzymolysis-subcritical water extraction combined process. Experiments show that the composition can significantly increase the hair growth rate, maintain the hair follicle growth period, increase the diameter of a hair bulb part, effectively improve hair follicle health through the synergistic effects of activating hair follicle stem cells, inhibiting apoptosis and the like, and can be applied to preparation of hair care products for promoting hair growth.
Owner:广州市比柔生物科技有限公司

Preparation method of low-odor arnebia euchroma (juss.) johnst. Extract and product and application thereof

PendingCN122075366AReduced volatile odorsmall smellCosmetic preparationsToilet preparationsBiotechnologyAlcohol
This invention belongs to the field of cosmetic raw material preparation technology, specifically relating to a method for preparing a low-odor Xinjiang Lithospermum extract, its product, and its application. The method includes: raw material pretreatment: drying and pulverizing Xinjiang Lithospermum raw material to obtain pretreated material; first-stage extraction: loading the pretreated material into a supercritical fluid extraction device, adding a composite entrainer for extraction, and collecting the first fraction in a first separator; second-stage extraction: collecting a second fraction rich in naphthoquinone components in a second separator; and post-treatment: concentrating the second fraction and removing the alcohol solvent to obtain the low-odor Xinjiang Lithospermum extract. This invention can separate and discard most of the odor-causing volatile components in the raw material under mild conditions in the first stage, and then efficiently extract the core active substances of naphthoquinone in the second stage, achieving a significant reduction in the odor of the extract and a significant improvement in its sensory quality.
Owner:HANGZHOU ISLAND XINGQING BIOTECHNOLOGY CO LTD

Preparation method of traditional Chinese medicine external preparation for treating arthralgia based on promoting blood circulation to remove blood stasis

The invention relates to the technical field of traditional Chinese medicine pharmacy, and discloses a preparation method of a traditional Chinese medicine external preparation for arthralgia based on blood circulation promoting and blood stasis removing, which comprises the following steps: extracting ferulic acid from angelica sinensis and ligusticum wallichii by adopting a supercritical CO2 fluid extraction process; extracting safflower, frankincense and other medicinal materials to obtain a synergistic active ingredient extract; the ferulic acid is used as a first hydrogen bond donor to react with lauric acid used as a temperature-sensitive phase change hydrogen bond donor and choline chloride used as a hydrogen bond acceptor, and the temperature-sensitive bioactive ternary eutectic solvent is prepared; loading the synergistic active ingredient extract in the solvent at low temperature to form a medicine mother solution; and finally, mixing the medicine mother liquor with auxiliary materials to prepare the external preparation. Ferulic acid in medicinal materials serves as a structural unit of a functional solvent, the solvent prepared under the mild condition has biological activity and temperature-sensitive phase change characteristics, a medicine storage cavern can be formed on the skin surface in situ, long-acting slow release and efficient transdermal absorption of active ingredients are achieved, and the curative effect and safety of a preparation are improved.
Owner:SHANDONG UNIV

A nuclear crystal prilling fluorite calcium prilling body washing system and method

This invention provides a washing system and method for calcium fluoride granules produced through nucleation granulation, comprising a plasma surface activation module, a supercritical fluid extraction washing module, and an intelligent control and circulation module connected in sequence. The plasma surface activation module is used to perform surface modification and impurity weakening treatment on pre-dried calcium fluoride granules. The supercritical fluid extraction purification module is used to deeply remove impurities from the surface and pores of the granules under anhydrous conditions. The intelligent control and circulation module is signal-connected to the aforementioned modules and is used to dynamically regulate the entire purification process based on online monitoring data. The plasma surface activation module includes a vibrating fluidized bed with a reaction chamber, solving the problem of incomplete removal of stubborn surface impurities by traditional water washing. Ultimately, the surface impurity removal rate of the calcium fluoride granules is stabilized at over 95%, and the product purity reaches a high standard for resource utilization.
Owner:FLUORINATION IND (YUNNAN) NEW MATERIALS TECHNOLOGY INNOVATION RESEARCH CO LTD

High purity curcumin powder and method of extraction thereof

The application belongs to the technical field of natural product extraction, and provides high-purity curcumin powder and an extraction method thereof. The extraction method of the high-purity curcumin powder comprises the following steps: (1) fresh turmeric is sliced, dried, and then crushed, supercritical CO2 extraction is adopted, and curcumin oil, curcumin powder, and residues are separated; (2) the residues are subjected to fermentation-type ethanol extraction to obtain an alcohol extract; (3) the curcumin powder and the alcohol extract are combined, subjected to macroporous resin adsorption, eluted with ethanol, and then concentrated to obtain a concentrated solution; and (4) the concentrated solution is recrystallized, washed, dried, and then high-purity curcumin crystals are obtained. The extraction method adopts supercritical CO2 fluid extraction coupled with fermentation-type ethanol extraction, and the technology of gradient cooling recrystallization of ethanol and water after macroporous resin adsorption, and the steps are used and operated in cooperation. The product obtained by using the extraction method has high yield and purity, low production cost, small amount of organic solvent, and is suitable for industrial production.
Owner:HAOMAI (GUIZHOU) BIOTECHNOLOGY CO LTD

Oral thick paste with function of relieving asthenopia

PendingCN121197321AOrganic active ingredientsSenses disorderBiotechnologyMuscular asthenopia
The invention relates to the technical field of oral thick paste preparation processes, in particular to an oral thick paste with an asthenopia relieving effect, the oral thick paste raw materials comprise core raw materials, the core raw materials comprise, by weight, 3-8 parts of chrysanthemum, 0.5-3 parts of dendrobium officinale, 3-8 parts of Chinese wolfberry, 3-8 parts of poria cocos, 3-8 parts of black sesame and 1-3 parts of prebiotics; the decoction process of the oral thick paste sequentially comprises the steps of pretreatment, extraction, concentration and paste collection, a step-by-step extraction mode or an enzymolysis-assisted extraction mode is adopted in the extraction step, or a mode of combining supercritical fluid extraction with water extraction is adopted in the concentration step, a gradient concentration mode and a microwave-assisted concentration mode are adopted in the concentration step, and an ultrasonic-assisted paste collection mode is adopted in the paste collection step. The eye protection effect is more comprehensive, prebiotics, blueberries, mulberries and the like are further introduced, and medicinal and edible components such as codonopsis pilosula, lily and the like are further introduced in the scheme and have a synergistic effect with other raw materials, so that a multi-target eye protection system for regulating intestinal tracts and nourishing eyes is constructed.
Owner:JIANMIN PHARMA GRP CO LTD

Dispersion comprising acellular dermal matrix microparticles, filler comprising same, and use thereof

The present invention relates to a dispersion comprising acellular dermal matrix microparticles, a filler comprising the same, and uses thereof. More specifically, the present invention relates to a filler comprising a dispersion containing acellular dermal matrix microparticles obtained by supercritical fluid extraction and high pressure dispersion operations, and a method for preparing the same. The acellular dermal filler according to the present invention has excellent biological stability and biocompatibility, and extracellular matrix components such as collagen and elastin are significantly preserved therein. In addition, the filling agent also shows excellent biochemical stability, the pH value or the collagen content and the elastin content are kept unchanged in the storage process, and the filling agent also shows physical stability and can continuously maintain injectability. Therefore, the acellular dermal filler can be effectively used as an injectable filler for repair or volume expansion of soft tissue and reduction of wrinkles in the field of plastic and regenerative medicine.
Owner:TOTO CO LTD

Supercritical extraction-based agilawood yang-tonifying tea processing method

The invention relates to the field of food science and engineering, in particular to a supercritical extraction-based agilawood yang-tonifying tea processing method. The method aims at solving the technical problems that an existing supercritical extraction process is difficult to finely regulate and control the extraction process, the yield of target active ingredients is unstable, the quality difference between batches of products is large, the energy consumption is high, and the existing supercritical extraction process is difficult to adapt to large-scale production. According to the method, key parameters such as temperature, pressure, flow and raw material characteristics of an extraction cavity are collected in real time by deploying a multi-source heterogeneous sensor network; preprocessing and feature extraction are carried out on the collected data, and a real-time state feature vector in the extraction process is constructed; according to the method, the extraction efficiency and selectivity of the target active ingredients of the agilawood Yang tonifying tea can be remarkably improved, the high consistency of the quality between batches of products is ensured, the energy consumption and the production cost are reduced, intelligent adjustment can be performed according to the difference of raw materials, and the product quality and the market competitiveness are effectively improved.
Owner:东莞益健源生物科技有限公司

Preparation process of white jade ointment

The application discloses a preparation process of Baiyu ointment and relates to the technical field of medicines. The Baiyu ointment prescription is composed of Radix Bupleuri, Rhizoma Polygonati, Ligusticum sinense, Polygonum hydropiper, Geranium wilfordii, Salvia miltiorrhiza, Arnebia euchroma, Angelica sinensis and Zingiber officinale. The preparation process comprises the following steps: taking medicinal materials; supercritical fluid extraction; ultrasonic extraction; and preparation forming. The original preparation process of the Baiyu ointment is improved and optimized by adopting the modern preparation process and combining with a large number of investigation experiments. The Baiyu ointment has the advantages of high content of effective components, reduced types of auxiliary materials and optimized dosage of the auxiliary materials. The Baiyu ointment has important significance for improving the medicine quality and enhancing the medicine safety, effectiveness and quality controllability.
Owner:GUIZHOU GREEN SUN PHARM CO LTD

Preparation process of high-strength CC composite material

The invention relates to the field of CC composite materials, and discloses a high-strength CC composite material preparation process which comprises the following steps: step 1, heating a reaction container to melt asphalt; 2, introducing a gas medium into the reaction container to increase the internal pressure of the reaction container; enabling the gas medium to be in a supercritical state; step 3, introducing a gas medium into the reaction container, and oscillating the molten asphalt by using the gas medium; 4, after oscillation is finished, the reaction container is heated to the carbonization temperature, and in-situ carbonization and supercritical fluid extraction are carried out. Carbon dioxide is introduced and is in a supercritical state, so that the viscosity of the impregnated asphalt is reduced; and meanwhile, the pressure in the reaction container is periodically changed between the peak pressure and the valley pressure to generate a physical pumping effect, so that the low-viscosity molten asphalt can be forcibly pressed into tiny pores of the carbon fiber preform, and residual gas in the pores can be discharged.
Owner:JIANGXI NINGXIN NEW MATERIAL CO LTD

Platycladi Cacumen Extract, Preparation Method Thereof and Application

ActiveCN121731170BBiotechnologyPLATYCLADUS ORIENTALIS LEAF
This invention provides an extract of Platycladus orientalis leaves, its preparation method, and its application. Specifically, the Platycladus orientalis leaf extract composition uses Platycladus orientalis leaves as raw material. First, extract 1 is obtained by supercritical fluid extraction. Then, the residue is collected and refluxed to obtain extract 2. Extracts 1 and 2 are combined in a specific ratio to obtain the Platycladus orientalis leaf extract composition. The composition has a synergistic effect and a significant anti-hair loss effect.
Owner:INGREDI BIOTECH CO LTD +1

A gradient pressure reactor for supercritical purification of quartz sand

This invention discloses a gradient pressure reactor for purifying quartz sand using supercritical fluid extraction. It includes a high-pressure cylinder, a medium-pressure cylinder, and a low-pressure cylinder separated along the axial direction, as well as a supercritical fluid injection system, a gradient pressure control system, and a control box. Heating jackets are installed on the outer walls of the high-pressure, medium-pressure, and low-pressure cylinders. A feed pipe is installed on the high-pressure cylinder, and a discharge pipe is installed at the bottom of the low-pressure cylinder. On / off valves are installed between adjacent feed pipes, high-pressure cylinders, medium-pressure cylinders, low-pressure cylinders, and discharge pipes. The gradient pressure control system includes a booster pump for the high-pressure cylinder, a pressure regulating valve for the medium-pressure cylinder, and a back pressure valve for the low-pressure cylinder. This invention utilizes a high-pressure cylinder for dissolving metallic impurities, a medium-pressure cylinder for removing organic matter, and a low-pressure cylinder for fluid-sand particle separation, thus achieving targeted impurity removal with high efficiency. Furthermore, the supercritical fluid diffuses more fully under different pressure environments, which is beneficial for improving fluid utilization.
Owner:JIANGSU HUANYANG TECHNOLOGY CO LTD

A supercritical fluid extraction process for 2-cyanopyridines

The application provides a supercritical extraction process of 2-cyanopyridine, and the specific process steps comprise ammonia oxidation of 2-methylpyridine, supercritical extraction, and separation and purification. The extraction process can effectively solve the problems of general separation efficiency, poor product quality, and low yield in the current mainstream 2-cyanopyridine preparation process. The extraction process of the application avoids the use of sulfuric acid, and the production process is more environmentally friendly. The hydrolysis of 2-cyanopyridine is inhibited, the product yield is improved, the yield of 2-cyanopyridine reaches 88%, only a small amount of solvent material is left in the supercritical extraction extract, and the product quality is higher. The supercritical extraction achieves the purpose of extraction by changing the pressure and temperature, and the process is simple and the extraction speed is fast.
Owner:NANTONG LIYANG CHEM CO LTD +1

Camellia oleifera seed high-value component separation method based on supercritical extraction and percolation extraction

This application relates to the field of camellia seed extraction technology, specifically disclosing a method for separating high-value components from camellia seeds based on supercritical fluid extraction and percolation extraction. It constructs an integrated high-value separation route using camellia seeds as a unified raw material, proceeding from oil extraction to saponification. First, supercritical carbon dioxide is used for green selective extraction of camellia seed powder, followed by gradient vacuum separation to obtain crude camellia seed oil. Simultaneously, defatted camellia seed meal with low residual oil and high porosity is produced. Then, the defatted camellia seed meal is subjected to wet column packing and constant-rate percolation extraction using an ethanol-water solution. This is combined with subsequent concentration, decolorization, and recrystallization to obtain tea saponins. This method, by coupling efficient defatting in the front stage with saponification and purification in the back stage, solves the problems of non-green camellia seed oil extraction, high residual oil and dense structure of the camellia seed meal, hindered mass transfer of tea saponins leading to low extraction efficiency, complex purification processes, and insufficient comprehensive utilization of camellia seeds in existing technologies.
Owner:QUZHOU RES INST OF ZHEJIANG UNIV

Method for removing fishy smell from sea bass oil

The invention relates to the technical field of fish oil preparation, in particular to a method for removing fishy smell from sea bass oil, which comprises the following steps: S1, supercritical fluid extraction pretreatment: putting sea bass oil into a supercritical fluid extraction device, and carrying out supercritical fluid extraction to remove part of fishy substances and impurities in fish oil; s2, primary separation: performing primary separation on the mixture extracted in the step S1; s3, secondary separation: performing secondary separation on the fish oil subjected to primary separation; s4, adsorption and fishy smell removal: enabling the fish oil subjected to secondary separation to pass through an adsorption column filled with a composite adsorbent; s5, molecular distillation purification: carrying out molecular distillation on the adsorbed fish oil; and S6, secondary adsorption under the protection of inert gas: in the fish oil subjected to molecular distillation, under the protection of inert gas, carrying out secondary adsorption again through the adsorption column filled with the composite adsorbent. The technical problem that the fishy smell of sea bass oil cannot be efficiently and greatly removed by the existing fishy smell removal process method is solved.
Owner:FUJIAN MINWEI FOOD CO LTD

Process technology and method for preparing BIO-ingredients, foods and beverages in absence of oxygen

PendingUS20260107953A1Oven air-treatment devicesPreservation by coolingAtmospheric airProcess engineering
A method and processing technology for preparing baked products from raw materials is disclosed. The method includes at least one baking or roasting step in which the raw materials are processed in the absence of atmospheric air, achieved through a vacuum, vacuum-compensated, or pressure—the latter two employing an inert atmosphere. A sealed rotary roasting drum (or processing compartment) is supplied with pre-heated inert gas while heating and rotating the raw materials, and the inert gas is optionally recycled for reuse. Additional unit operations such as milling, cooling, spraying, extraction, and storage are also performed in the absence of atmospheric air, to preserve product quality and prevent oxidation. Optional steps include cryogenic pre-milling, sweetener addition to generating a “torrefacto” effect, and supercritical fluid extraction of oils for later incorporation into the baked products. The disclosed technology enables continuous production of baked products with improved aroma, stability, and self-life, by maintaining an oxygen-free environment throughout processing.
Owner:MIRANDA LUIZ DE

Medicinal and edible dandelion powder, medicinal and edible dandelion milk tea and preparation method of medicinal and edible dandelion milk tea

The invention discloses medicinal and edible dandelion powder, dandelion milk tea and a preparation method thereof, and relates to the technical field of food processing. The preparation method of the dandelion powder comprises the following steps: S1, performing supercritical CO2 fluid extraction on fine dandelion powder, and performing depressurization separation to obtain an extract and medicine residues; s2, deionized water is added into the medicine residues, a medicine residue solution is obtained, composite hydrolase is added for enzymolysis, and an extracting solution is obtained; s3, dissolving the extract with an ethanol solution to obtain an extract liquid, then mixing with the extract liquid, performing vacuum rotary evaporation, and eluting with macroporous resin to obtain an eluent; s4, carrying out vacuum concentration on the eluent, and sequentially carrying out ceramic membrane cross-flow filtration and nanofiltration membrane concentration, so as to obtain trapped fluid; and S5, drying and crushing to obtain the dandelion powder. The preparation process is simple, low in energy consumption, high in total extraction rate and low in solvent residue, the prepared dandelion powder is good in solubility and stability, the content of effective components is high, and the bioaccessibility of flavone is remarkably improved.
Owner:HEBEI STRONG FOOD

Preparation method of herba epimedii essential oil

The invention discloses a preparation method of herba epimedii essential oil, and belongs to the technical field of plant extraction. The preparation method comprises the following steps: firstly, pre-treating epimedium leaves, namely selecting, cleaning, drying, crushing and sieving to obtain epimedium leaf powder; then performing efficient extraction under specific pressure, temperature and time by adopting a supercritical CO2 fluid extraction technology to obtain an epimedium oil crude product; and finally, dissolving the crude product with an organic solvent, drying with a dehydrating agent, filtering, and removing the solvent to obtain the pure herba epimedii essential oil. A supercritical extraction process is adopted, conditions are mild, heat-sensitive components and natural flavor can be reserved to the maximum extent, and activity loss caused by traditional high-temperature extraction is avoided; the obtained essential oil is complex and harmonious in component and rich in characteristic terpene and alcohol compounds, so that the essential oil has excellent antioxidant biological activity while keeping unique medicine fragrance and wood fragrance. The method is simple in step, good in repeatability and environment-friendly, and provides a reliable way for high-quality, standardized and industrial production of the herba epimedii essential oil.
Owner:CHONGQING UNIV OF EDUCATION +1

An environmentally friendly air freshener composition based on natural extracts and a method of making the same

PendingCN122440871ABiotechnologyEngineering
The application discloses an environment-friendly perfume composition and a preparation method thereof. The composition is prepared from natural herb extracts and citrus-based natural essential oils by using a supercritical fluid extraction process. The fragrance components are derived from natural herb extracts of lavender, rosemary and mint, and orange and lemon grass essential oils. In order to ensure stability, natural emulsifiers, natural polysaccharide thickeners represented by plant lecithin, natural moisturizers and antioxidants are added in the formula, so as to further improve the storage stability of the product. The air freshener prepared by using the application not only has excellent fragrance effect and durability, but also is safe for human body and environment, and is a truly environment-friendly product.
Owner:朴根重 +1

Purification method of plasticizer-free ganoderma lucidum spore oil

The invention relates to the technical field of deep processing of ganoderma lucidum spore oil, and discloses a purification method of plasticizer-free ganoderma lucidum spore oil, which comprises the following steps: raw material pretreatment, supercritical fluid extraction, analytical separation and post-treatment. In the supercritical fluid extraction step, supercritical carbon dioxide fluid with adjustable polarity is adopted, an entrainer is used in combination, a plasticizer is preferentially removed in the extraction process through the selective dissolution characteristic of the fluid to plasticizer molecules, meanwhile, the extraction interference on active ingredients in the ganoderma lucidum spore oil is minimized, and the extraction efficiency is improved. Therefore, the biological activity of the product is protected while the plasticizer is removed; meanwhile, the selective separation effect is further optimized through parameter control and dynamic adjustment in the extraction process, the loss of active ingredients caused by improper conditions in a traditional method is avoided, and the accuracy and reliability of the purification process are improved.
Owner:HARBIN ESSENCE BIOLOGICAL TECH CO

Separation equipment for extracting high-purity nicotine in waste tobacco leaves

The utility model relates to separation equipment for extracting high-purity nicotine in waste tobacco leaves, and effectively solves the problems that an existing supercritical fluid extraction device is relatively high in cost, relatively long in extraction time, poor in extraction effect and inconvenient to fully extract nicotine in the tobacco leaves. According to the separation equipment for extracting the high-purity nicotine in the waste tobacco leaves, through the arrangement of the cavity, the heating belt, the net barrel mechanism, the feeding mechanism, the stirring mechanism and the extraction mechanism, the cost can be reduced, the extraction environment temperature can be stably kept constant, normal extraction is guaranteed, supercritical fluid can wash the tobacco leaves in the net barrel mechanism through the feeding mechanism, and the nicotine extraction efficiency is improved. And the extraction mechanism at the bottom can enable the extraction agent to circularly wash the tobacco leaves in the net cylinder mechanisms, and the extraction agent is disturbed by matching with the stirring mechanism, so that the extraction agent can be fully mixed with the tobacco leaves in the net cylinder mechanisms, the nicotine extraction effect is greatly improved, and the use during nicotine extraction is more facilitated.
Owner:开封瑞泉香精香料有限公司

Preparation method of black ginger oil based on enzymolysis-supercritical synergistic extraction

The invention discloses a preparation method of black ginger oil based on enzymolysis-supercritical synergistic extraction, and belongs to the technical field of plant extraction. The preparation method of the black ginger oil based on enzymolysis-supercritical synergistic extraction comprises the following steps: crushing black ginger to obtain a black ginger material; mixing an enzyme preparation with the black ginger material, and performing enzymolysis treatment to obtain an enzymolysis product; inactivating and drying the zymolyte to obtain a dried black ginger material; and adding solvent grease into the dried black ginger material to obtain a to-be-extracted solution, and carrying out supercritical CO2 extraction to obtain the black ginger oil. The enzymolysis treatment is used as a key pretreatment step, the cell wall structure of the black ginger is specifically degraded, and the mass transfer resistance of the material is remarkably reduced; by combining a supercritical CO2 extraction technology, high-efficiency extraction is realized under a low-temperature condition, and the problems of low extraction rate and high energy consumption when a single supercritical CO2 extraction technology is used for treating compact plant raw materials are effectively solved.
Owner:BEIJING YANZHISHAN TECH CO LTD

Method and device for synergistically separating coal pitch through supercritical fluid extraction and distillation

PendingCN121343621AWorking-up pitch/asphalt/bitumen by distillationWorking-up pitch/asphalt/bitumen by selective extractionDistillationProcess engineering
The invention belongs to the technical field of coal pitch processing, and relates to a supercritical fluid extraction and distillation synergistic coal pitch separation method which comprises the following steps: preparing liquid coal pitch and liquid medicine, and mixing the liquid coal pitch and the liquid medicine to form mixed liquid; providing a supercritical fluid, respectively inputting the mixed solution and the supercritical fluid into two ends of an extractor, enabling the mixed solution and the supercritical fluid to reversely flow, extracting to obtain a first extracting solution, a first extract and a fluid mixture, and carrying out separation treatment on the first extracting solution for more than four times to obtain more than four extracts, separating the mixture of the first extract and the fluid to obtain a first extract, carrying out reduced pressure distillation separation on the fifth extract to obtain more than three distillates, and recycling after separating the extract from the fluid. According to the technical scheme provided by the invention, each component of the coal pitch can be accurately extracted and separated, and the comprehensive value of the coal pitch is improved.
Owner:SHENZHEN KELUOBO TECH CO LTD

Cacumen biotae extract as well as preparation method and application thereof

The invention provides a Chinese arborvitae twig and leaf extract and a preparation method and application thereof, and particularly, the Chinese arborvitae twig and leaf extract composition is prepared by taking Chinese arborvitae twig and leaf as a raw material, firstly performing supercritical fluid extraction to obtain an extract 1, then collecting material residues, then performing reflux extraction to obtain an extract 2, and combining the extract 1 and the extract 2 according to a specific proportion to obtain the Chinese arborvitae twig and leaf extract composition. The Chinese arborvitae twig and leaf extract composition has the advantages that the synergistic effect is realized, and the anti-hair loss effect is obvious.
Owner:INGREDI BIOTECH CO LTD +1

Supercritical CO2 extraction-sterilization integrated system and method for veterinary traditional Chinese medicine preparation

The invention relates to the technical field of extraction of active ingredients of traditional Chinese medicinal materials with the classification number of B01D 11 / 02 (supercritical fluid extraction process), and discloses a supercritical CO2 extraction-sterilization integrated system and method for a veterinary traditional Chinese medicinal preparation. The system comprises a CO2 supply and pressurization module, a pretreatment and feeding module, a supercritical cooperative treatment core module, a separation and collection module, a CO2 circulation and purification module and a central intelligent control module. The method comprises the steps of medicinal material pretreatment, system parameter setting, supercritical CO2 synchronous extraction-sterilization, product separation and collection, CO2 recovery and the like. By precisely controlling the temperature, pressure and time of supercritical CO2, efficient extraction of active ingredients and thorough killing of microorganisms are synchronously completed in a closed system, prediction control is performed by utilizing a mathematical model, the problem of active ingredient oxidation loss caused by intermediate exposure and high-temperature sterilization in a traditional step-by-step process is thoroughly avoided, and the method is suitable for industrial production. The method has the advantages of high product activity, good quality, short process and environmental protection.
Owner:SHANDONG DEXIN BIOTECHNOLOGY CO LTD

Tea enzymolysis supercritical fluid extraction device based on temperature-sensitive control

ActiveCN224474727Ufacilitated releaseIncrease free rateMass transfer resistanceBiology
The utility model discloses a kind of based on temperature-sensitive control's tea enzymatic supercritical fluid extraction device, including bottom plate, the top of bottom plate is fixedly installed with mounting seat, the top of mounting seat is fixedly installed with enzymatic component, the inside of enzymatic component is installed with stirring component, the other end of bottom plate top is fixedly installed with extraction component, and one end of extraction component is fixedly communicated with separation collection component, a kind of based on temperature-sensitive control's tea enzymatic supercritical fluid extraction device of the utility model, by the pretreatment of the enzymatic method to the tea that needs extraction, target component in tea cell is more easily released into solution, and enzyme can degrade macromolecule combined with target component, reduce impurity adsorption in extraction process, improve the free rate of target component, and by the cooperation of enzymatic and supercritical fluid extraction, enzymatic pretreatment makes target component fully release from matrix, reduce mass transfer resistance, supercritical fluid can quickly diffuse and dissolve target component, shorten extraction time.
Owner:FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE

Traditional Chinese medicine compound effective component preparation method based on supercritical fluid extraction technology

The invention discloses a traditional Chinese medicine compound effective component preparation method based on a supercritical fluid extraction technology, and relates to the technical field of traditional Chinese medicine extraction. The method specifically comprises the following steps: S1, medicinal material pretreatment, S2, solvent selection and proportioning, S3, extraction condition optimization, S4, selective extraction, S5, extract collection and S6, purification treatment. According to the traditional Chinese medicine compound effective component preparation method based on the supercritical fluid extraction technology, by adding the polarity regulator, the extraction capacity of supercritical CO2 on different polar effective components in a traditional Chinese medicine compound is enhanced, the problem that the polar component extraction effect of single supercritical CO2 is poor is solved, a multi-stage extraction strategy is adopted, and the extraction efficiency is improved. The method realizes selective extraction of different polar components in the traditional Chinese medicine compound, improves the extraction efficiency and the purity of target components, optimizes extraction parameters, ensures the stability and repeatability of the extraction process, retains the activity of heat sensitive components in the traditional Chinese medicine compound, and avoids the damage of traditional high-temperature extraction to effective components.
Owner:HEBEI LONGHAI PHARMA