83 results about "Steam distillation" patented technology

The invention belongs to the technical field of forest chemical industry and natural perfume extraction and separation, and particularly discloses a superheated steam distillation separation and recovery method for perfume components in cinnamon oil rectifying still residues. The method comprises the following steps: processing the cinnamon oil rectifying still residues by adopting a steam distillation method taking normal-pressure superheated steam as a desorption medium, carrying out condensation cooling and phase separation on distilled oil-water mixed gas, and collecting oily liquid or crystalline solid containing cinnamon spice components, and carrying out one or more physical isolation methods such as freezing crystallization, vacuum fractionation or rectification, recrystallization and the like to obtain natural cinnamon monomer spices such as o-methoxycinnamaldehyde, o-methoxycinnamic acid, phenethyl alcohol and the like. The method has the advantages of low equipment investment, simple and feasible operation, low production cost, clean and pollution-free process, good operation safety, high industrial application feasibility and the like.

The invention discloses an extraction method and application of lavender essential oil based on yeast fermentation pretreatment, and belongs to the technical field of plant active ingredient extraction. The method comprises the following steps: activating saccharomycetes, inoculating the saccharomycetes into a mixture containing a crushed lavender raw material and water, and fermenting at 30-38 DEG C for 20-28 hours to obtain fermentation liquor; then sterilizing and centrifuging the fermentation liquor to obtain supernate; and finally extracting the essential oil through steam distillation. Through yeast fermentation pretreatment, the lavender cell wall structure is effectively destroyed, essential oil release and active ingredient conversion are promoted, and the essential oil yield and antioxidant activity are remarkably improved. Compared with a traditional steam distillation method, the method has the advantages that the essential oil yield can be increased from 0.55% to 0.75% or above, and the DPPH free radical scavenging rate can be increased to 51.75% or above. The method is green in process and simple and convenient to operate, a new way is provided for high-value utilization of lavender resources, and the prepared essential oil can be used for developing cosmetics with anti-oxidation and anti-aging effects.

The invention relates to a preparation method of citrus essential oil and a product and application thereof, the preparation method comprises the following steps: (1) mixing a citrus peel raw material with enzyme and water, and performing enzymolysis treatment to obtain an enzymolysis treatment solution; (2) performing high-voltage pulse electric field treatment on the enzymolysis treatment liquid to obtain solid-liquid mixed liquid; and (3) carrying out steam distillation on the solid-liquid mixed solution, collecting distillate, and separating an oil phase to obtain the citrus essential oil. The citrus essential oil is prepared by utilizing an enzymolysis-high-pressure pulse-steam distillation combined extraction method, the extraction process is low in condition, no organic reagent is introduced, the extraction process is green and environment-friendly, the loss of volatile active ingredients of the essential oil is less, and two treatments of enzymolysis and high-pressure pulse are added before steam distillation treatment, so that the yield of the essential oil can be increased; moreover, the tyrosinase inhibitory activity and the anti-free radical activity of the essential oil are also obviously improved, and the two pre-treatments promote each other and have a synergistic effect in the aspect of the effects.

The invention belongs to the technical field of plant extraction, and particularly relates to fokienia hodginsii heartwood essential oil and an extraction process and application thereof in termite prevention and control. The extraction process of the Fujian cypress heartwood essential oil comprises the following steps: mixing Fujian cypress heartwood powder, NaCl and water, carrying out ultrasonic treatment, carrying out steam distillation extraction treatment on the obtained mixture, and collecting an upper oily substance in an extracting solution, so as to obtain the Fujian cypress heartwood essential oil, the content of NaCl in the mixture is 8 to 10 weight percent. The key point of the invention is that NaCl with a specific concentration is added when the ultrasonic-assisted steam distillation extraction process is adopted to extract the essential oil from the Fujian cypress heartwood, so that on one hand, the extraction rate of the Fujian cypress heartwood essential oil can be improved, and on the other hand, the extraction of some heavy oil components with good biological activity in the Fujian cypress heartwood is facilitated; therefore, the obtained centella asiatica heartwood essential oil shows excellent contact killing, repelling and fumigating effects on termites.

The invention relates to the technical field of functional edible oil processing, and discloses zanthoxylum oil with an auxiliary anticancer function prepared on the basis of an aqueous enzymatic method, and the zanthoxylum oil is prepared from the following raw materials in parts by weight: 88-95 parts of zanthoxylum seed oil, 3-8 parts of high-purity oleoresin, 0.6 part of compound enzyme, 1-4 parts of volatile essential oil and 0.05 part of a stabilizer, the preparation method of the zanthoxylum oil with the auxiliary anticancer function based on the aqueous enzymatic method is characterized by specifically comprising the following steps: 1, mixing and adjusting the pH value: crushing zanthoxylum seeds, mixing the crushed zanthoxylum seeds with drinking water, and adjusting the pH value to 5.5; 2, enzymolysis: adding a compound enzyme, and carrying out enzymolysis at 50 DEG C for 4 hours; according to the present invention, through the specific raw material ratio and preparation steps, the low temperature enzymolysis process is adopted, the activity of alpha-linolenic acid and other heat-sensitive components is effectively retained, the composite enzymolysis cooperates with the steam distillation to achieve the efficient extraction and compounding of a variety of active components, and the anti-cancer function of the zanthoxylum oil is effectively improved.

The application belongs to the technical field of substance analysis and detection, and provides an extraction method and a detection method for N-nitrosamine compounds in aquatic products. The N-nitrosamine compounds in the aquatic products to be measured are extracted by steam distillation, and the extraction rate of the N-nitrosamine compounds is high. The obtained distillate is purified and enriched by using an acid-modified coconut shell activated carbon column, the acid-modified coconut shell activated carbon column can effectively adsorb N-dimethyl-nitrosamine and N-diethyl-nitrosamine in the distillate, the acid-modified coconut shell activated carbon column is first eluted with n-hexane to remove part of the fat-soluble impurities, then N-dimethyl-nitrosamine and N-diethyl-nitrosamine are eluted with dichloromethane, due to the strong adsorption of the acid-modified coconut shell activated carbon column to the impurities, the impurities are not easily eluted by dichloromethane, so that the impurities, N-dimethyl-nitrosamine and N-diethyl-nitrosamine are effectively separated, and the purpose of purification is achieved.

The invention relates to the technical field of separation and purification, in particular to a method for preparing eugenol from clove oil plants, which comprises the following steps: (a) mixing clove buds or leaves with perlite according to a mass ratio of 1: (1.5-2) to obtain a mixture; (b) an anti-oxidation composite liquid is added into the mixed material, the mixture is stirred to be uniform and then left to stand, a pretreated material is obtained, and the anti-oxidation composite liquid comprises ascorbic acid, citric acid and glycerin; (c) loading the pretreated material into a distillation device, carrying out gradient heating steam distillation, and collecting condensate; (d) performing low-temperature vacuum concentration on the condensate to obtain crude eugenol; and (e) mixing the crude eugenol with a molecular sieve according to a mass ratio of 1: (3-5), adsorbing, and filtering to obtain refined eugenol. The invention provides an efficient, stable and environment-friendly eugenol purification method, by introducing a novel protective agent system and a staged temperature control rectification technology, the occurrence rate of thermal decomposition and oxidation reaction is remarkably reduced, and the product purity and the production efficiency are improved.

This invention discloses a topical traditional Chinese medicine composition for relieving pain and its preparation method, belonging to the field of traditional Chinese medicine preparation technology. The topical traditional Chinese medicine composition for relieving pain is made from the following raw materials in parts by weight: Angelica sinensis 5-25 parts, Ligusticum striatum 5-20 parts, Lycopodium clavatum 10-35 parts, Artemisia argyi 5-25 parts, artificial Phellodendron chinense 3-18 parts, Clematis chinensis 10-40 parts, and Angelica dahurica 5-20 parts. This invention uses steam distillation to extract volatile oils and a dual-solvent gradient extraction method with the residue, which not only fully extracts the volatile fat-soluble components from Angelica sinensis, Ligusticum striatum, and Angelica dahurica, but also efficiently extracts the water-soluble components from artificial Phellodendron chinense, Lycopodium clavatum, and other medicinal materials. Experimental results show that the extraction rates of ferulic acid, ligustilide, imperatorin, and berberine hydrochloride in Example 1 of this invention reached 89.23%, 92.56%, 90.12%, and 93.45%, respectively, which are 110.7%, 223.1%, 75.8%, and 23.6% higher than those of conventional water decoction process, thus improving the utilization rate of raw materials.

The invention discloses a herbal tea beverage containing elsholtzia rugulosa and a preparation method thereof. The herbal tea beverage is prepared from elsholtzia rugulosa, honeysuckle, chrysanthemum, dandelion, momordica grosvenori, cane sugar and citric acid according to a specific ratio. The preparation method comprises the following steps: respectively extracting volatile oil in elsholtzia rugulosa and honeysuckle by adopting a cellulase-assisted steam distillation method, and preparing the volatile oil into microcapsules to keep stable; extracting active ingredients of the chrysanthemum, the dandelion and the momordica grosvenori at low temperature by adopting a cellulase-assisted ultrasonic method; and finally, mixing and blending the extracting solution with the volatile oil microcapsules, cane sugar, citric acid and the like, sterilizing and filling. The preparation method effectively solves the technical problems that volatile oil is easy to lose and thermosensitive components are easy to destroy in the traditional process, the prepared herbal tea beverage maximally retains active components and unique faint scent of the raw materials, has the advantages of clearing away heat and toxic materials, and being good in taste, good in stability and long in shelf life, and meanwhile provides a new way for developing special ethnic plant resources.

This invention discloses a multi-target synergistic preservation method for fruits and vegetables based on the active ingredients of Torreya grandis aril, belonging to the field of fruit and vegetable preservation technology. The method includes the following steps: Step 1: Using Torreya grandis aril as raw material, Torreya grandis aril essential oil is extracted by steam distillation. This multi-target synergistic preservation method for fruits and vegetables based on the active ingredients of Torreya grandis aril combines four active ingredients—3-carene, D-limonene, δ-juniperol, and δ-juniperene—from the Torreya grandis aril essential oil with chitosan to construct an integrated synergistic preservation system of "antioxidant—enzyme inhibition—film protection—antibacterial action." This system protects the integrity of fruit cell membranes and delays softening and water loss, thereby overcoming the shortcomings of existing technologies that are single-function and unstable in effect. It achieves precise, multi-target intervention across the entire chain of postharvest physiological decline in perishable fruits and vegetables.

The invention belongs to the technical field of food processing, and particularly relates to a preparation method of a beverage containing a wormwood extract. Artemisia vulgaris (Artemisia) is an Asteraceae Artemisia (Artemisia) perennial herbaceous plant, and the Asteraceae Artemisia (Artemisia) perennial herbaceous plant is selected from the group consisting of Artemisia The invention aims to improve the utilization value of wormwood, and provides the preparation method of the beverage containing the wormwood extract aiming at the characteristic that the wormwood is rich in various beneficial components. The method specifically comprises the following steps: crushing dried wormwood, and extracting volatile components by adopting a steam distillation method; and filtering residues obtained after steam distillation, extracting with water for three times, and combining filtrates to obtain water-soluble components. Adding the water-soluble components and the volatile components into other components for adjusting the taste, uniformly mixing, bottling, and sterilizing in a water bath at 70-100 DEG C for 30 minutes to obtain a finished product. The preparation method is beneficial to development and utilization of wormwood in the aspect of beverages.

The invention discloses a method for extracting fennel essential oil based on a choline chloride-citric acid natural eutectic solvent. According to the method, fennel fruits are crushed, a choline chloride-citric acid NADES aqueous solution is used as a solvent, fennel essential oil is extracted by using an ultrasonic-assisted steam distillation method, the yield of the fennel essential oil and the contents of four main components such as trans-anethole are used as evaluation indexes, weights are given to the indexes by using an entropy weight method, and comprehensive scores are calculated. And finally, evaluating the anti-inflammatory activity of the fennel essential oil by using an RAW264.7 cell LPS induced anti-inflammatory model. The natural eutectic solvent is combined with the ultrasonic-assisted steam distillation technology, the extraction method has the characteristics of short extraction time, easiness in operation and low cost, and the fennel essential oil obtained by the novel extraction method is higher in yield, more in volatile components, better in anti-inflammatory activity and suitable for industrial production. A new means and a theoretical basis are provided for industrial popularization of the fennel essential oil and application of the fennel essential oil in the field of biological medicines.

The invention provides a Don acid tea rice wine and a brewing process thereof. The brewing process comprises the following steps: S1, pretreating Don acid tea which is subjected to picking, spreading and airing, fixation, rolling, anaerobic fermentation and drying in the sun; s2, washing the rice raw material with water, soaking for 3-4 hours, cooking for 1 hour, taking out from a pot, covering for 10 minutes, blowing to cool, adding the distiller's yeast, uniformly stirring, and saccharifying in a jar for 2-3 days; s3, after saccharification is finished, adding water and rice into the dried Don acid tea, mixing, sealing and carrying out anaerobic fermentation for more than one month; s4, after fermentation is finished, distilling in a pot, firstly removing foreshot which accounts for 1% of the grain when the wine is distilled, then distilling with soft fire, and after 6-7 hours, finishing distillation and removing after-run which is less than 30 degrees; and S5, after distillation is finished, adjusting to a proper alcoholic strength, and aging in a ceramic cylinder for more than three months. According to the invention, the Don acid tea and the rice raw materials are organically combined, so that the core health factors and flavor characteristics of the Don acid tea are reserved, and the mellow taste of the rice wine is also achieved.

This invention discloses a targeted extraction method for honeysuckle and an integrated honeysuckle extract, relating to the field of plant active ingredient extraction technology. The targeted extraction method for honeysuckle includes the following steps: S1, preparing a glucose-citric acid natural eutectic solvent; S2, mixing honeysuckle powder with the glucose-citric acid natural eutectic solvent, performing ultrasonic-assisted extraction, and obtaining a first extract and filter residue after solid-liquid separation; S3, sequentially subjecting the filter residue to steam distillation and ethanol reflux extraction, collecting the upper oily layer of the azeotropic distillate as the second extract, and concentrating the ethanol reflux extract to obtain a third extract; S4, separating and purifying the first extract to obtain the first extract, and recovering the glucose-citric acid natural eutectic solvent; S5, mixing the first extract, second extract, and third extract. This invention achieves efficient and simultaneous extraction of multiple active ingredients from honeysuckle, resulting in an integrated honeysuckle extract with high activity.

The invention provides a Chinese mugwort active ingredient accurate extraction device for preparing a Chinese mugwort antibacterial spray, the Chinese mugwort active ingredient accurate extraction device is suitable for the technical field of Chinese mugwort extraction, the Chinese mugwort active ingredient accurate extraction device comprises a refining box with a steam evaporator arranged at the bottom, a Chinese mugwort raw material refining frame and a power part, and the Chinese mugwort raw material refining frame is assembled in a box body of the refining box; the Chinese mugwort raw material refining frame comprises a Chinese mugwort raw material refining belt, and the Chinese mugwort raw material refining belt is bent, positioned and erected in the refining box; the Chinese mugwort raw material refining belt is used for flatly placing Chinese mugwort raw materials; the power part is assembled outside the refining box; the power part is used for transmitting power to the Chinese mugwort raw material refining belt and driving the Chinese mugwort raw material refining belt to circularly move in the refining box along a bent positioning frame state; the contact area and the contact time of water vapor and Chinese mugwort raw materials are guaranteed; the Chinese mugwort essential oil is extracted by a steam distillation method, and the extraction efficiency and quality of the Chinese mugwort essential oil are improved.

The invention discloses a compound moxa stick containing traditional Chinese medicine components for strengthening body resistance, activating blood and eliminating dampness and a preparation method thereof, and relates to the field of traditional Chinese medicine moxibustion products. The problems that the high-temperature pyrolysis of the dampness-eliminating volatile oil loses efficacy when the compound moxa stick is burnt, and the burning temperature is too high after the traditional Chinese medicine is added, so that PM2.5 is sharply increased are solved. The preparation method is characterized by comprising the following steps: performing steam distillation on rhizoma atractylodis and agastache rugosus to extract mixed volatile oil, drying residual medicine residues, and performing superfine grinding on the dried residual medicine residues, body resistance strengthening traditional Chinese medicines (ginseng and astragalus membranaceus), blood activating traditional Chinese medicines (salvia miltiorrhiza, angelica sinensis and the like), pericarpium citri reticulatae and rhizoma acori graminei to obtain compound traditional Chinese medicine powder; loading the volatile oil on a porous silicon dioxide carrier to form composite particles; mixing the moxa and the compound traditional Chinese medicine powder in proportion to obtain a premixed material; and after the composite particles and the premixed material are rolled and molded by mulberry bark paper, a nano cellulose-chitosan compound flame-retardant smoke-control coating is sprayed on the surface. The method is used for preparing the compound moxa stick which can stably release active ingredients and is low in smoke and safe.

The invention discloses a wild sweet potato natural essential oil extraction method and special extraction equipment, and belongs to the technical field of natural perfume extraction. The extraction method comprises the steps of raw material pretreatment, crushing, extraction, separation, purification and aging, the extraction process covers all mainstream and novel processes such as steam distillation, ultrasonic-assisted extraction and subcritical extraction, the extraction temperature ranges from-20 DEG C to 120 DEG C, the pressure covers vacuum negative pressure to pressurization, and the raw materials cover fruits, stems, vines, leaves, roots, skins, milk and whole plants of ficus tikoua bur; the special extraction equipment comprises a crushing unit, an extraction unit, a temperature control unit, a pressure control unit, a condensation unit, an oil-water separation unit, a graded collection unit and a storage whole unit, the extraction unit can be flexibly switched and is adaptive to all extraction working conditions, and the condensation unit is a gradient / graded condensation system and can realize segmented collection of head incense, body incense and base incense. The technology covers the whole domain, equipment is exclusively matched, the technology and reported related patents of the ficus tikoua bur are coordinated and complemented, the situation that other people change the technology, parameters and equipment and select specific raw material parts to hit edge balls is thoroughly avoided, full blocking of the ficus tikoua bur natural essential oil extraction racing track is achieved, meanwhile, the extraction efficiency is high, fragrance is completely reserved, and the raw materials are completely utilized; the application range is wide.

The invention provides a preparation method of natural strong-flavor soybean oil. The preparation method comprises the following steps: (1) pretreating a soybean raw material; (2) carrying out heat treatment on the pretreated soybean raw materials, namely roasting or baking treatment; (3) cooling the soybean raw material subjected to heat treatment, and then performing mechanical squeezing to obtain crude oil; (4) sequentially carrying out degumming treatment, physical deacidification and deodorization treatment on the crude oil to obtain finished oil; wherein the degumming treatment temperature is not higher than 70 DEG C; the physical deacidification adopts a steam distillation method; the deodorization treatment is carried out under the conditions that the vacuum degree is lower than 3mbar and the temperature is 200-220 DEG C. According to the method, phospholipid, free fatty acid and peculiar smell substances can be efficiently removed to ensure the safety and stability of grease, and meanwhile, the damage and removal of heat-sensitive natural flavor substances are reduced, so that the flavor of the finished product soybean oil is increased.

This invention discloses a method for preparing a gastroenteritis preparation with good taste. The steps include: (1) chopping and mixing jujube pulp and ginger, enzymatically hydrolyzing them, separating them to obtain filtrate and residue, concentrating the filtrate under reduced pressure to obtain component I; (2) adding the residue to deionized water, collecting the oil phase by steam distillation to obtain component II; (3) preparing intermediate extract powder; (4) mixing the intermediate extract powder, component I, and component II evenly, adding a binder for fluidized bed granulation, drying to obtain intermediate particles; mixing the intermediate particles with magnesium stearate evenly, compressing into tablets to obtain the gastroenteritis preparation. Adding the excipients prepared in this invention to traditional formulations can improve antibacterial activity, and by adding jujube and ginger extracts, the taste can be improved, infused with fruity aroma, and the ginger extract can mask some of the bitterness of the medicinal materials, making the gastroenteritis preparation taste better.

The present application relates to a kind of high-purity nicotine preparation method derived from tobacco stem, belong to plant extraction technical field.This method is for the large amount of tobacco stem waste produced in the process of tobacco planting and baking, proposes an efficient nicotine extraction method.By crushing tobacco stem, using acid aqueous solution for acidification treatment, then using alkaline solution to adjust pH value and carry out steam distillation, collect distillate.Subsequently, using reverse osmosis membrane concentration and molecular distillation technology for purification, obtain high-purity nicotine solution.This method does not use organic solvent, reduces the security risk, at the same time improves the extraction rate and purity of nicotine, purity can reach 95%~99%, extraction efficiency is more than 85%.In addition, the method uses membrane distillation process to reduce energy consumption, reduce the loss of active ingredients, and further remove impurities through molecular distillation technology, prevent nicotine degradation and oxidation deterioration.The implementation of the present application not only realizes the high value-added utilization of tobacco stem, but also improves the economic benefit, reduces the pollution to the environment.

This invention discloses a method for preparing camphor root volatile oil, which is used for anti-oxidation, anti-aspergillus flavus, and inhibition of aflatoxin synthesis. The camphor root volatile oil of this invention is extracted by steam distillation, with a maximum volatile oil content of 3.34%. Gas chromatography-mass spectrometry analysis of the chemical composition of the camphor root volatile oil confirmed that the main components include camphor, 1,8-cineole, linalool, α-pinene, and sapinene. When applied to inhibit the growth and toxin production of Aspergillus flavus, a volatile oil concentration of 3 μL / mL completely inhibits aflatoxin production. This volatile oil also possesses antioxidant activity, with a half-maximal inhibitory concentration (IC50) for scavenging ABTS free radicals. 50 Below DPPH radicals, its lowest IC50 value is... 50 The values ​​were 0.6115±0.4240 mg / mL and 1.7658±0.2488 mg / mL, respectively. This volatile oil can also inhibit and control Aspergillus flavus contamination in Job's tears, and has application value in the food and health industries.

The utility model discloses an ultrasonic decompression water vapor distillation device, including water vapor generating system, distillation system, collection system, cooling system, vacuum system, ultrasonic system, water vapor generating system includes heat source, first three -neck flask, first bushing, gas guide connector, gas duct, reflux tube, second bushing, first glass tube, distillation system includes second three -neck flask, second glass tube, third bushing, fourth bushing, collection system includes distillation head, syringe, cooling system includes condenser pipe, vacuum system includes three -way air -bleed connector, vacuum pipe, pressure regulating valve, vacuum pump, ultrasonic system includes ultrasonic generator. Adopt the utility model to carry out water vapor distillation experiment, can reduce water consumption, reduce energy consumption, improve efficiency, have the advantages such as avoiding heat -sensitive organic matter to be destroyed simultaneously.

The invention discloses an incense extraction method based on a supercritical-enzymolysis coupling technology, which is characterized by comprising the following steps: S1, supercritical COextraction of lipid components in sandalwood and agilawood; s2, carrying out low-temperature microwave-assisted steam distillation on volatile components in radix angelicae and agastache rugosus; s3, carrying out enzymolysis fermentation pretreatment on rhizoma nardostachyos and cyperus rotundus to break walls of cellulose so as to improve the aroma yield; s4, performing nanometer coating on heat-sensitive resin components such as frankincense and benzoin, performing supercritical COextraction on high-value lipid components in sandalwood and agilawood, performing low-temperature microwave-assisted steam distillation on volatile components in radix angelicae and agastache rugosus, performing enzymolysis fermentation on rhizoma nardostachyos, and performing wall breaking on cellulose in rhizoma cyperi so as to improve the aroma yield; through multi-mode synergistic extraction, the retention rate of active ingredients is increased, high-temperature damage is reduced, heat-sensitive resin ingredients such as frankincense and benzoin are subjected to nano coating, controllable slow release during combustion is achieved, and the problem of aroma fault caused by too fast combustion of traditional incense preparation can be solved.

This invention discloses a continuous steam distillation extraction system for woody essential oils, relating to the field of woody essential oil distillation extraction. Based on a distillation tower, it incorporates a spiral flow channel and a multi-stage gradient inverted conical filter layer. The tower is divided into a distillation chamber, a filtration chamber, and a steam outlet chamber. During distillation, the temperature and pressure parameters of each chamber are collected in real time. Using the distillation chamber as the first stage and the steam outlet chamber as the second stage, single-domain cross-linking analysis is performed in conjunction with the filtration chamber parameters to generate action interference commands. These commands drive a cylinder rod to achieve online self-cleaning of the filter layer and dynamic spacing control. This enables deep vapor phase impurity removal and closed-loop control of the distillation process, extending the system's continuous operating time, ensuring stable pressure-temperature-vapor velocity balance within the tower, and improving the extraction rate and product quality of woody essential oils. Essentially, it maintains the stability of the working environment within the tower while preserving the basic function of vapor phase filtration.

The invention discloses an anticancer antipyretic traditional Chinese medicine preparation and a preparation method thereof. The anticancer antipyretic traditional Chinese medicine preparation is prepared from honeysuckle, sticktight, corydalis tuber, immature bitter orange, verbena, laggera pterodonta, rhizoma acori graminei, teasel root, Mitsubishi, curcuma zedoary, radices trichosanthis, cape jasmine and a specific proportion of blood stasis removing and antipyretic extract according to specific parts by weight. The method is characterized in that a multi-mode modern extraction technology is adopted, wherein the multi-mode modern extraction technology comprises ultrasonic-assisted ethanol extraction, steam distillation, enzymolysis-microwave combined extraction and supercritical CO2 extraction, and the extraction efficiency and purity of effective components in different medicinal materials are optimized in a targeted mode. The preparation has the effects of clearing away heat and toxic materials and promoting blood circulation to remove blood stasis aiming at the traditional Chinese medicine pathogenesis of stagnant heat of cancerous fever, and the bioavailability and the quality controllability are remarkably improved. Pharmacodynamic experiments show that the effects of the preparation in the aspects of reducing the body temperature of a model animal, inhibiting inflammatory factors and improving oxidative stress indexes are obviously superior to those of conventional western medicines, and a novel traditional Chinese medicine treatment choice which is safe, effective and good in stability is provided for cancerous fever.

This application relates to the technical field of fine chemicals, specifically disclosing a method for extracting chamomile volatile oil. The method disclosed in this application includes the following steps: soaking chamomile in a 5-20 wt% ethanol aqueous solution, performing low-temperature extraction, and filtering to discard the extract; soaking the residue in a 50-70 wt% ethanol aqueous solution, then performing ultrasonic extraction, filtering, and collecting the extract; soaking the residue from step S2 in a 70-100 wt% ethanol aqueous solution, then performing ultrasonic extraction, filtering, and collecting the extract; combining the extracts from steps S2 and S3 to obtain a chamomile ethanol extract, which is then subjected to rotary evaporation, salting out, and washing with water to obtain chamomile volatile oil. Using the method of this application, the extraction rate and core component content of chamomile volatile oil are significantly better than traditional steam distillation, and the energy consumption is lower, showing good prospects for industrial application.

The invention discloses an intelligent electric heating control system for traditional Chinese medicine steam distillation, relates to the technical field of traditional Chinese medicine steam distillation, and can solve the problems of low extraction precision, low resource utilization rate and poor product quality batch stability in the traditional Chinese medicine steam distillation process. Collecting real-time spectral data of the distillate; wherein the real-time spectral data comprises absorbance information on a plurality of continuous wavelengths; determining the specific weight of each wavelength according to the real-time spectral data; wherein the specific weight is used for representing the specificity of the wavelength on the spectral signal of the target traditional Chinese medicine effective component; for each wavelength, determining the wavelength end point probability of each wavelength according to the absorbance change trend of the wavelength; according to the specific weight and the wavelength end point probability, determining the comprehensive probability that the current moment is the distillation end point; and dynamically adjusting the electric heating power according to the comprehensive probability.

The invention relates to an origanum vulgare extract as well as a preparation method and application thereof. The method comprises the following steps: S1, taking dried origanum vulgare medicinal material powder; s2, performing steam distillation on the oregano medicinal material powder, and separating oregano essential oil in a steam distillation product; filtering a residual steam distillation product to obtain oregano medicinal material residues and a first filtrate; s3, performing reflux extraction on the oregano medicinal material residues obtained in the step S2, and filtering a reflux extraction product to obtain a second filtrate; s4, mixing the first filtrate and the second filtrate to obtain a mixed filtrate, filtering, concentrating to obtain a concentrate, and drying the concentrate to obtain an origanum vulgare extract; wherein the extraction solvent in the step S2 and the step S3 is water added with a thickening agent, the addition amount of the thickening agent accounts for 0.01%-0.1% of the total mass of the water, and the filtered mixed filtrate does not contain the thickening agent. The oregano extract obtained by the invention is safe and stable, has anti-aging and anti-oxidation effects, and can be used for various skin care products.

The utility model discloses a medicine extraction device with a built-in shunting structure, and relates to the technical field of medicine extraction devices. The steam distillation device comprises a steam distillation structure which comprises a cylinder body, a movable cylinder embedded with the cylinder body, a heating assembly positioned in the cylinder body, hydraulic rods I fixedly arranged at two ends of the cylinder body, and a supporting net positioned in the upper end of the cylinder body; and; the flow dividing structure comprises a conveying pipe located on one side of the barrel, a collecting barrel connected to the outer wall of the conveying pipe in a sleeving mode, a barrel-shaped filter screen installed on the inner wall of the conveying pipe in an embedded mode and located in the collecting barrel, a liquid discharging pipe installed in the lower end of the collecting barrel in a penetrating mode, and a hose installed in the conveying pipe in a penetrating mode. According to the utility model, by arranging the shunting structure, the problem that subsequent secondary separation is required and is relatively complicated due to the fact that part of chippings and particles flow along with distilled steam during component extraction under a steam distillation device is solved.

The invention relates to the field of medicines, and particularly discloses an anti-inflammatory and analgesic external emulsion as well as a preparation method and application thereof. The external emulsion is prepared from nine traditional Chinese medicines including radix clematidis, phryma leptostachya, radix angelicae pubescentis, scandent schefflera stem and leaf, corydalis tuber, ligusticum wallichii, angelica sinensis, pseudo-ginseng and borneol according to a specific ratio, volatile oil is extracted through steam distillation, then ethanol reflux extraction is combined, and finally an emulsifier and a wetting agent are added. The preparation method realizes full-effect utilization of volatile oil and water-soluble and alcohol-soluble components in the medicinal materials. The external emulsion has dual effects of rapid analgesia and long-acting anti-inflammation, and pharmacodynamic experiments show that the anti-inflammation and analgesia effects of the external emulsion are obviously superior to those of a same-prescription spray without volatile oil. Meanwhile, the medicament is good in stability, free of skin irritation and suitable for treating various pains and inflammations such as rheumatic arthritis, soft tissue contusion and cold-dampness dysmenorrhea.