138 results about "Steam distillation" patented technology

The invention discloses a preparation method of ocimum gratissimum carbon dots and application of the ocimum gratissimum carbon dots in antibacterial drugs and food preservation. The preparation method of the ocimum gratissimum carbon dots comprises the following steps: performing steam distillation on ocimum gratissimum leaves to remove essential oil, drying in the shade, and crushing; adding an alcohol solvent into the powder, extracting, filtering, concentrating and drying to obtain an alcohol extract; dispersing the alcohol extract in distilled water, and stirring and pyrolyzing on a heating table; and diluting the pyrolysis product with distilled water, centrifuging, taking supernate, filtering with a filter membrane, dialyzing, and freeze-drying to obtain the carbon dots. The obtained carbon dots have a carbon dot-vesicle coexisting structure, and the average particle size is 5.732 + / -0.5 nm. The prepared ocimum gratissimum carbon dots can be applied to preparation of antibacterial drugs, especially drugs for inhibiting the activity of bacillus cereus and listeria, and the field of food preservation, and have the advantages of being wide in raw material source, simple in preparation method, low in cost, environmentally friendly and the like.

The invention discloses a coating material containing an agilawood component and a preparation method and application thereof, and belongs to the technical field of coating materials, a coating is composed of agilawood powder, paprika powder, natural glutinous rice glue, agilawood hydrolat and water, diatomite or beeswax emulsion can be selectively added, the oil content of the agilawood powder is larger than or equal to 15%, linalool is larger than or equal to 1.2 mg / g, and the agilawood powder is subjected to airflow crushing treatment; the glutinous rice glue is prepared by hydrolyzing starch, and the solid content is 25-35%; agilawood hydrolat is extracted through steam distillation, the concentration of agilawood alcohol is larger than or equal to 0.8 mg / mL, during preparation, raw materials are mixed and then stirred for 10-20 min at the high speed of 2500-3500 r / min at the temperature of 20-40 DEG C to form a stable system, the VOC content of the coating is smaller than 10 g / L, the coating meets the GB18582-2020 standard, the escherichia coli inhibition rate and the staphylococcus aureus inhibition rate are 95% and 98% respectively, the initial aroma intensity is 8.5 min (10 min), the coating is kept for 7.2 min after 12 months, the adhesive force is 0 grade, the pencil hardness is 2-4 H, and the coating is suitable for being applied to the field of medical care. The coating has the advantages of no less than 5000 times of washing resistance, no less than 91% of performance retention rate after 500 hours of ultraviolet aging, and suitableness for coating wall surfaces, furniture and handicrafts, and has the characteristics of aromatic physical therapy, antibiosis and environmental protection.

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 provides a preparation method and application of borneol water with high natural borneol content, and belongs to the technical field of medicines, daily chemicals and aromatherapy. The invention provides a preparation method of borneol water with high natural borneol content, and the borneol water is prepared by directly adopting fresh crushed cinnamomum camphora leaves as a borneol donor based on a two-stage vacuum steam distillation-cyclodextrin reversible carrying coupling process. According to the method, through a'two-stage vacuum steam distillation-cyclodextrin reversible carrying 'coupling process, the content of borneol in a water phase reaches 0.60 + / -0.05 g / 100mL, the chemical purity is greater than or equal to 96%, and meanwhile, long-term clarification and stability are ensured. The obtained borneol water can be effectively used for treating infant eczema, chronic kidney disease related pruritus and relieving / inhibiting pain in the acute outbreak period of gout.

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 invention belongs to the technical field of biology, and particularly relates to application of a perilla frutescens extract in preparation of an anti-fatigue product. The perillene volatile oil is obtained by adopting a steam distillation method, and the perillene accounts for more than 10% of the total volatile oil. Further verification shows that the extracted perillene type volatile oil is safe and non-toxic, can improve exercise tolerance, improve muscle state and body physiological indexes, and has a good anti-fatigue effect. The perillene volatile oil can be used for developing anti-fatigue drugs, health care products or food products, and has a good application prospect.

The invention relates to four novel glechoma longituba volatile oils and a preparation method thereof, and belongs to the technical field of biology. Transferring tissue-cultured glechoma longituba aseptic seedlings into a 1 / 2 Japanese garden test nutrient solution for culturing to obtain hydroponic glechoma longituba; the method comprises the following steps: carrying out stress water culture on glechoma longituba for 72 hours by using 0.4 wt / v% of Na2SO4, carrying out stress water culture on glechoma longituba for 4 hours, 48 hours and 96 hours by using 1.6 wt / v% of Na2SO4, harvesting stems and leaves of glechoma longituba, and extracting volatile oil by using a steam distillation method to obtain four types of volatile oil in total. The glechoma longituba volatile oil obtained by the invention is used for preparing medicines for resisting oxidation, reducing blood fat, protecting vascular endothelial cells, resisting cardiovascular and cerebrovascular system related diseases such as atherosclerosis and the like.

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 discloses a steam distillation device for extracting natural product volatile oil, and relates to the technical field of distillation devices, the steam distillation device comprises a mounting rack, a heating tank fixedly connected to the mounting rack, a condensation collection assembly communicated to the top of the heating tank, and a side door mounted on the side surface, and also comprises a bearing mechanism, the bearing mechanism comprises a plurality of bearing assemblies connected to the inner wall of the heating tank, and the same porous disc is placed at the output ends of the bearing assemblies. And an auxiliary mechanism. By arranging the bearing mechanism and the auxiliary mechanism, the ginger slices on the upper layer of the porous disc are punctured, the surface area and porosity of the ginger slices are increased, water vapor can penetrate through the ginger slices more easily, the distillation process is accelerated, and the extraction efficiency of essential oil is improved; the ginger slices on the porous disc are shoveled, turned and extruded, so that the effects of distilling and pricking the ginger slices are improved, cells of the ginger slices are further damaged, more essential oil components are extruded out, and the extraction efficiency and yield of the essential oil are improved.

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 utility model relates to the technical field of wine brewing equipment, in particular to air cooling equipment for wine brewing, which comprises an air cooling box, a frequency conversion fan is mounted in an air outlet at the top of the air cooling box, an annular heat dissipation pipeline is arranged in the air cooling box, a plurality of heat dissipation fins are sleeved outside the heat dissipation pipeline, and a plurality of air outlets are formed in the top of the air cooling box. The inlet end of the heat dissipation pipeline is externally connected into a supply box outside the air cooling box through a steam inlet pipe, a three-way pipe is arranged at the outlet end of the heat dissipation pipeline, a gas port of the three-way pipe is connected with the supply box through an exhaust pipeline, a liquid port of the three-way pipe is connected with a wine outlet pipeline, and a steam-liquid pressure cylinder is arranged in the supply box. Wine steam is conveyed into the air cooling box through the steam-liquid pressure cylinder, air cooling is achieved, the water cooling mode of the wine steam is optimized into the air cooling mode, the cooling cost can be reduced, the wine steam cooling process is controllable, the wine steam distillation speed and the raw wine product separation effect can be improved, and the wine outlet quality is guaranteed.

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 an application of children Danqing Shuanglian granules in preparation of drugs for treating acute inflammation. The acute inflammation comprises acute upper respiratory tract infection, bronchitis, amygdalitis and pneumonia caused by virus infection (H1N1, H3N2, FluB and HRSV) or abnormal immunoreaction. Raw materials of the granules comprise nauclea officinalis, artemisia apiacea, scutellaria baicalensis and other traditional Chinese medicinal materials and anti-inflammatory regulatory peptide. The preparation process comprises the following steps: extracting volatile oil by steam distillation, extracting effective components by combining microwave assistance and ultrasonic enhancement, carrying out beta-cyclodextrin inclusion on polypeptide to enhance the stability, and finally granulating to obtain granules with the water content of less than or equal to 6%. Experiments show that the inhibition rate of the drug to HRSV under the maximum non-toxic concentration reaches 81.8% + / -2.0%, and the therapeutic index is SIgt; 2, the latency period of ammonia water induced mouse cough can be remarkably prolonged, the cough frequency is reduced, the antiviral, anti-inflammatory and antitussive effects are achieved, and a safe and effective traditional Chinese medicine choice is provided for clinical treatment of viral acute inflammation.

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 relates to the technical field of aromatic plant hydrolat production processes, and discloses a method for nitrogen-assisted segmented directional extraction of aromatic plant hydrolat in order to solve the problem of low content of aromatic components and functional components in an aromatic plant hydrolat product in an existing process for extracting aromatic plant hydrolat by a steam distillation method. Comprising the following steps: mixing fresh aromatic plant petals with pure water, and adding adsorption particles to obtain a distilled mixture; placing the distilled mixture in a nitrogen environment, heating and pressurizing, distilling, and condensing to recover a distillate; and continuously introducing hot air at 80-120 DEG C, and collecting distillate to obtain the aromatic plant hydrolat. Nitrogen is introduced to prevent the raw materials from being in contact with oxygen in the air in the distillation process and being subjected to oxidation reaction in a heating environment, so that the aromatic plant hydrolat product has peculiar smell after being cooked; meanwhile, through precise pressure control, the volatilization loss of water vapor in the distillation process can be reduced, so that the purpose of retaining and concentrating effective components is achieved.

The present invention relates to a detection method for volatile oil of Bupleurum chinense DC. The detection method of the present invention includes the extraction of volatile oil of Bupleurum chinense DC. and the detection by gas chromatography. Among them, the extraction of volatile oil of Bupleurum chinense DC. uses the steam distillation method; gas chromatography is used to qualitatively analyze the chemical components of the volatile oil of Bupleurum chinense DC., and 18 compounds are identified.

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.

The invention relates to the technical field of essential oil extraction, in particular to a preparation method of illicium verum volatile oil, which comprises the following steps: (a) crushing illicium verum pods to 100 meshes or more; (b) mixing the crushed material with 150-200-mesh quartz sand according to a mass ratio of 1: (1-2) to obtain a ball-milled material, adding water, and ball-milling until the particle size is less than or equal to 50 microns to obtain ball-milled slurry; (c) adding a ternary composite fixing agent into the ball-milled slurry, and uniformly stirring to obtain a mixture, the fixing agent comprising pregelatinized starch, microcrystalline cellulose and diatomite; (d) dehydrating the mixed material until the water content is 18-22% to obtain a dehydrated material; and (e) performing steam distillation on the loosely paved dehydrated material, and collecting volatile oil to obtain the illicium verum volatile oil. According to the scheme, the fine powder is fixed by cell-level crushing and the ternary composite fixing agent, so that smooth steam circulation is ensured, and the oil yield and the purity are further improved.

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.