65results about How to "Short extraction time" patented technology

The invention discloses a method to extract corn yellow pigment with microwave-ultrasonic extraction; the method combines the microwave technology with the ultrasonic technology, and uses over 90% ethanol and petroleum ether mixed solution at 60-90 DEG C as the extractant to extract the yellow pigment from the corn gluten meal of the by-product of corn starch production through wet process; the particle size of raw materials is 0.19-0.36mm; the ratio of the mixed solution of the extractant between ethanol and petroleum is 1:1 (volume ratio) ether, and the liquid material ratio is (6-15):1 (volume-to-weight ratio); the microwave power is 600w to 1,000w, and the processing time is 5s to 100s, and the temperature is 47 to 57 DEG C; the ultrasonic power is 300w to 600w and the processing time is 10min to 40min, and the temperature is 47 to 57 DEG C; the filtrate is decompressed and evaporated at 30 to 40 DEG C to get orange-red paste which is processed with n-hexane elution and filtered to remove insoluble protein, an then dried to constant weight in vacuum at 35 to 45 DEG C to weigh and calculate the extraction rate. The method has low toxicity of extractant and high yield of extracts, which solves the problem of long extraction time by the original method and is easy to be industrialized.

A process for preparing the regenerated tobacco sheets by ultrasonic extraction includes such steps as breaking tobacco stems, mixing with tobacco dust, loading in ultrasonic extractor, proportionally adding water or aqueous solution of alcohol, ultrasonic extracting, solid-liquid separation, making sheets with obtained solid, dewatering, baking, concentrating the obtained liquid, adding sugar, edible pigment and the perfume for cigarette, applying it onto said sheets, baking and cutting.

The invention discloses a flash extraction method of achyranthes root polysaccharide. The method is characterized by comprising the following steps: adding water to achyranthes root powder for flash extraction, and carrying out centrifugation and flash concentration on the extracting liquor; adding absolute ethyl alcohol to the concentrated liquor for natural alcohol precipitation, and standing and centrifuging to obtain a precipitate; adequately dissolving the precipitate by adding water, and after filtering, concentrating by a flash concentrator; and carrying out vacuum drying on the concentrated liquor to obtain an achyranthes root polysaccharide product. According to the method, the extraction time can be shortened, the use level of extraction liquor can be reduced, and the extraction rate can be improved. The method provided by the invention is simple and convenient for extraction process and low in equipment operation and maintenance cost. The structural integrity and the biological activity of polysaccharide are beneficially maintained.

The invention relates to a production method for extracting allicin oil from garlic. The method comprises the following steps that: peeled and cleaned garlic is firstly selected; the cleaned garlic is meshed and baked (deodorized); crushing is carried out; high-pressure water and oil mixed phase digestion is carried out; digested materials are extruded so that materials and liquid are basically separated; digestion liquid is subjected to still standing so that the water oil layer realizes the delamination; the oil layer is allicin-containing finished products; and the digested garlic slag, water and water-soluble substances are added with various kinds of natural spice and are then processed and prepared into composite seasonings of flavor sauce in any flavors. The production method has the advantages that the process is simple, the extraction time is short, the cost is low, no organic solvents remain, byproducts of garlic slag and the like can be integrally utilized, and the new breakthrough of the extraction technology of the allicin oil is realized by the product.

The invention discloses a method for extracting flavone component in hawthorn by using a pressurized liquid extraction (APLE) technique. The method comprises removing kernels from matured hawthorn fruits, conducting low-temperature drying, smashing by using a grinder, screening hawthorn powder with needed particle size, placing for reserving, weighting certain amount of the hawthorn powder to be sufficiently mixed with certain amount of kieselguhr, filling in an extraction pool, sealing the extraction pool, placing in a pressurized solvent extraction device, adding solvent, setting parameters and then automatically extracting. Maximum 12 samples can be automatically extracted by using a same method. The pressurized liquid extraction method is adopted, extracting time is short, conditions are mild, the solvent is saved, and flavone yield is high. The method further has the advantages of simple operation, good continuity and the like. Obtained hawthorn flavone can be used for further research and development of medical treatment, health care and functional foods.

The invention discloses a method for extracting rutin from sophora japonica, which comprises the following steps of: (1) cleaning and drying sophora japonica, putting the sophora japonica into a fermentation tank, adding rutin biotransformation enzymes for closed fermentation for 4-6 hours, and then, transferring the sophora japonica into an extraction tank; (2) adding 4.5 times of mixed solvent of methanol and ethanol into the extraction tank for stirring, extracting and filtering to obtain a filtered solution; (3) distilling the filtered solution, and then, recovering the solvent to obtain rutin extract; and (4) adding 3-5 times of quantity of mixed solvent of acetone, petroleum ether and n-octanol into the obtained rutin extract for conventionally stirring, extracting and filtering, distilling the filtered solution, and recovering the solvent to obtain high-purity rutin finished products. In the invention, the whole extracting process is closed and does not cause environment pollution; the extracting time is short, and the whole extracting and refining operation can be finished only in 16 hours; equipment used for extracting is conventional equipment, thus the enterprise burden can not be increased; and the solvent can be recycled, the production cost is low, the rutin yield is high, and the product purity meets the standard of State Pharmacopoeia and the standard of European Pharmacopoeia 6 (EP6).

The invention provides a preparation method for compound traditional Chinese medicine preparation children common cold granules, and relates to a preparation method for a compound traditional Chinese medicine preparation. The preparation process comprises the following steps: crushing 1 / 5 dose of gypsum and indigowoad root, carrying out vacuum drying, and crushing by using a jet mill to obtain micropowder to provide a spare use; carrying out extraction on rehmannia, blackend swallowwort root and rhizome, Chinese wolfberry root bark, gypsum, chrysanthemum and indigowoad leaf by adopting water as a solvent to obtain a water extract filtrate; carrying out distillation extraction on patchouli, peppermint and weeping forsythia fruit to obtain volatile oil; filtering the residual aqueous solution after volatile oil extraction, and carrying out merging and concentration on the filtered aqueous solution and the water extract filtrate extracted through ultrasonic extraction to obtain an extract to provide a spare use; adopting beta-cyclodextrin to carry out inclusion on the volatile oil extracted through steam distillation extraction to obtain the volatile oil beta-cyclodextrin inclusion complex to provide a spare use; and mixing the traditional Chinese medicine water extraction extract, the traditional Chinese medicine jet milling micropowder, sucrose powder and dextrin to prepare into granules, drying, adding the volatile oil beta-cyclodextrin inclusion complex, and uniformly mixing to obtain the children common cold granules, wherein the children common cold granules have characteristics of fine granule and easy absorption by human bodies, and adverse drug absorption effects on human bodies due to absorption difference are eliminated at a maximum.

The invention discloses an extraction method of mythic fungus multi-sugar alcohol. The extraction method comprises the following steps: (1) cutting dry fruiting bodies in varieties of mythic fungus, ganoderma lucidum karst and ganoderma sinensis into blocks or slices; (2) adding sections into a 50-75 percent ethanol solution, carrying out reflux extraction, and then carrying out interlayer steam reflux heating extraction by using a 75 percent ethanol solution and a 60 percent ethanol solution sequentially; (3) combining three return flows, standing for 18-24h, sucking up a supernatant, and concentrating; (4) adding a 95 percent ethanol solution in a concentrated solution until the alcohol content is 70 percent, standing for 18-24h, sucking up a supernatant, and concentrating to obtain an extract liquid; and (5), drying, namely, spray drying the extract liquid to obtain extract powder. According to the extraction method of the mythic fungus multi-sugar alcohol disclosed by the invention, as the mythic fungus multi-sugar alcohol is extracted by using an alcohol extraction method, the extraction rate of the lucidum polysaccharide is high, the effective components including triterpenes, alkaloids and nucleosides in the fruiting bodies of mythic fungi can also be completely extracted, and thus resource waste is avoided, and the extraction efficiency is improved.

The invention provides a method for simply and rapidly extracting total RNA from switchgrass tissue, and pertains to the field of biotechnology. The concrete steps of the method comprises: a first step of preparing experimental medicines and extracting biological samples from switchgrass leaves or stems; a second step of releasing nucleic acid from the biological samples by using chemical reagents; a third step of extracting free RNA by using chloroform and precipitating the free RNA by using isopropanol to obtain the total RNA; and a fourth step of identifying the total RNA by using an ultraviolet spectrophotometer and an agarose gel electrophoresis detection method separately. The electrophoresis and data results show that the obtained RNA of plant tissues has good integrity, high purity and high yield, and can meet requirements in molecular biology research and application. Meanwhile, the method has simple experimental process, easy operation, good security, accurate results, good availability, and good repeatability.

The invention provides a purification method of yunaconitine, which includes the following steps: taking a vilmorrianine medicinal material as the raw material, smashing, adding alcohol, infiltrating for 1 to 2 hours, transferring to an extraction kettle, using supercritical carbon dioxide for extraction, collecting yunaconitine extract, dissolving with acid water, filtering, adding cation exchange resin for absorption, adding alkaline alcoholic solution for elution, enabling eluent to be decompressed and concentrated, adding methylene dichloride for extraction, enabling extract liquor to be concentrated, adding aluminum oxide and packing columns after drying, using petroleum ether methylene dichloride mixed solution for elution, detecting in thin layers, collecting yunaconitine flow content, enabling eluent to be concentrated and placed in small size for crystallization, drying crystals and obtaining the yunaconitine product. The purification method of yunaconitine causes little pollution, and is low in energy consumption, high in yield and suitable for industrial production.

The invention discloses a preparation method for extracting evodia rutatecarpa alkaloid by an ultrasonically aided method, relating to an ultrasonic extraction method taking evodia rutatecarpa as raw material, which is that: evodia rutatecarpa medical material is ground to coarse powder which is then put in an ultrasonic extraction apparatus; ethanol solution is used as solvent and the w / v (weight-to-volume ratio) of the evodia rutatecarpa medical material and the solvent is 1:10-1:30; the coarse powder is soaked in the solvent for 30 min-60 min, and then extracted for 30-120 min under the conditions of 20-70 kHz of ultrasonic frequency and 20-70 DEG C of temperature, and then discharged and filtrated; the obtained filtrate is vacuum-filtered or centrifugalized; the obtained clear liquid is condensed and the solvent is reclaimed so as to get thick paste which is then dried; thus the evodia rutatecarpa alkaloid is obtained. The preparation method of the invention has the advantages of short extraction time and production cycle, high production efficiency, low extraction temperature, high yield of total alkaloids of evodia rutatecarpa, high extraction rate of evodiamine and rutaecarpine, suitability for industrialized mass production, etc.

The invention provides a preparation method of a notopterygium root spray of nine ingredients, relating to a preparation method of a traditional Chinese medicine spray. The notopterygium root spray of nine ingredients is composed of notopterygium root, divaricate saposhnikovia root, Chinese atractylodes, asarum herb, chuanxiong rhizome, angelia, baical skullcap root, licorice and rehmannia root. The preparation method comprises the following steps of: extracting volatile oils from the notopterygium root, the divaricate saposhnikovia root, the Chinese atractylodes, the asarum herb, the chuanxiong rhizome and the angelica; performing ultrasonic extraction on the dregs after extraction, the baical skullcap root, the licorice and the rehmannia root, filtering after extraction; concentrating the obtained filtrate, adding ethanol, standing and filtering; and concentrating the filtrate, recovering the ethanol, adding the volatile oils, a surfactant, an essence and a preservative to the concentrated solution, mixing evenly, supplementing distilled water, filtering, subpackaging and sterilizing. The preparation method provided by the invention has the characteristics of short extraction time, high yield, no need of heating, and the like, saves the production time, improves the extraction rate, avoids degradation of thermal instable ingredients, is favorable to full utilization of medicinal materials, and saves energy and cost.

A preparation method of appetite and digestion promoting particles belongs to the technical field of medicines. The appetite and digestion promoting particles comprises the following raw medicines by weight parts: 40-400 parts of hawthorns, 6-60 parts of malts and 6-60 parts of Qianqu tablets. The appetite and digestion promoting particles are prepared by adopting the following steps: (1) carrying out supersonic extraction on the hawthorns, the malts and the Qianqu tablets by using water as a solvent to obtain a water extract; (2) filtering a water extract by using microfiltration membranes, and concentrating the water extract till thick paste is obtained; and (3) adding starch into the thick paste and uniformly mixing, pelletizing, drying, arranging particles and conducting subpackaging to obtain the appetite and digestion promoting particles. The preparation method has the beneficial effects that the appetite and digestion promoting particles have the characteristics of short extraction time, high yield and no need of heating through ultrasonic extraction by adopting advanced preparation technologies such as one-step pelletizing by the ultrasonic extraction, the production time is saved, the extraction ratio is increased, the degradation and the loss of effective constituents, particularly temperature-sensitive constituents in medicines are reduced, the extraction technology is simplified, the production cost is reduced, and the quality of products is improved.

The invention relates to an adsorption and analysis device of a headspace sample, comprising double needles, a first air carrying pipeline, a first connecting pipeline, an adsorption pipe, a second connecting pipeline, an adsorption and analysis pipeline, a second air carrying pipeline, a third air carrying pipeline, an exhaust pipeline and a transmission pipeline. One end of the double needles is inserted into a sample bottle, and the double needles comprise a carrying air inlet hole and an air outlet hole; the first air carrying pipeline is communicated with the carrying air inlet hole; the first end of the first connecting pipeline is communicated with the air outlet hole; the adsorption pipe comprises an inlet, an outlet and an adsorption and analysis inlet-outlet and is filled with adsorbent; the second connecting pipeline is communicated with the outlet of the adsorption pipe; the adsorption and analysis pipeline, the second air carrying pipeline, the third air carrying pipeline and the exhaust pipeline are communicated with the adsorption and analysis inlet-outlet; the transmission pipeline is connected with a gas chromatograph; the second end of the first connecting pipeline penetrates through the inlet of the adsorption pipeline and the adsorbent to extend out of the end surface of the adsorbent; switching valves are arranged among the second connecting pipeline, the exhaust pipeline, the second air carrying pipeline and the transmission pipeline; and a first control valve and a second control valve are arranged between the third air carrying pipeline and the adsorption and analysis pipeline. The invention simultaneously has the headspace and purging and trapping functions,shortens time for extracting and analyzing a sample and can obtain lower detection limit and high sensitivity.

The invention discloses an externally applied traditional Chinese medicine for treating gynecologic inflammation. The medicine is prepared from the following ingredients by weight: 18.3-21.7 parts of sophora flavescens, 14.2-15.8 parts of common cnidium fruit, 17.8-22.3 parts of cortex phellodendri, 13.8-16.2 parts of radix stemonae, 14.2-15.8 parts of cortex dictamni, 4.3-5.7 parts of Chinese prickly ash, and 9.1-10.8 parts of alum. The medicine is simple and reasonable in composition, and has the functions of clearing heat and promoting diuresis, promoting blood circulation to arrest pain, removing blood stasis and dispersing phlegm, and regulating menstruation and dredging collaterals. The invention further discloses a preparation method of the medicine, which comprises the following steps: drying each ingredient based on the weight part, crushing the ingredients into coarse powder of 250-850um or 10-50mesh, mixing uniformly, placing the mixed powder into a supersonic extractor, adding 70% ethanol to extract effective components so as to obtain the alcohol extract of the effective components, placing the extract still for 48-72h, taking and filtering alcohol precipitation supernatant, and recycling ethanol to obtain the concentrated extract of the effective components.

The invention discloses a method for extracting sesame protein, which comprises a preprocessing procedure and an extraction procedure. The method is characterized in that: in the extraction procedure, a supercritical carbon dioxide is used as a solvent and the extraction conditions are that: extraction pressure is between 7 and 50 MPa; extraction temperature is between 32 and 45 DEG C; desorption temperature is between 30 and 75 DEG C; desorption pressure is between 4 and 8 MPa; and extraction time is between 0.5 and 5 hours. Compared with the sesame protein extracting by the prior art, the sesame protein can wholly keep the original flavor and mouthfeel of sesame; and the flavor and the mouthfeel of a sesame protein product are obviously superior to those of the sesame protein product prepared by the current alkali extraction and acid precipitation method.

The invention discloses a preparation method of a natural flavor. The method comprises a raw material pretreatment step of crushing raw materials into 20-40-mesh particles; and the ratio of the raw materials, namely momordica grosvenori to gynostemma pentaphylla to maca is 1 to (1.4-1.8) to (2.2-2.6). Microwave assisted extraction is adopted; and the microwave radiation process is the process that a high-frequency electromagnetic wave penetrates through an extraction medium to reach the inside of the material. Microwave energy is absorbed, so that the temperature in cells rapidly rises, the pressure in the cells exceeds the sustainable pressure for cell walls for expansion, the cells are broken, effective ingredients in the cells freely flow out and are dissolved into the extraction medium at a relatively low temperature, thermosensitive substances are well protected, the extraction time of microwave extraction is very short, and the extraction efficiency is greatly improved. The produced natural flavor is fruity, harmonious, pure and elegant in fragrance, and abundant in fragrance; the problems that a tobacco product is light in smoke and insufficient in fragrance due to the adoption of a method for reducing harmful components in the smoke can be effectively solved; the quality of a cigarette product can also be improved; and the aftertaste is comfortable, sweet and soft.

The invention provides an extraction method of cottonseed protein. The extraction method comprises the following steps of pretreating cottonseeds to obtain cottonseed kernels, and then defatting the cottonseed kernels so as to obtain defatted cottonseed meal; at least performing two stages of leaching extraction on the defatted cottonseed meal with a methanolic solution so as to obtain leached materials, wherein the time of each stage of the leaching extraction is 10-30min, the concentration of the methanolic solution is 85-95%, and the weight ratio of the defatted cottonseed meal to the methanolic solution is 1 to (0.8-2); and then draining the leached materials, and performing desolventizing and drying so as to obtain the cottonseed protein. According to the extraction method of the cottonseed protein disclosed by the invention, quick, high-efficient and thorough removal of non-protein ingredient substances and hazardous substances in cottonseed meal is realized, and the made cottonseed concentrated protein is high in content and high in nutritive efficiency.

The invention belongs to the field of functional food, and particularly relates to a radix ophiopogon root extract and a preparation method and application thereof. The content of polysaccharide in the extract is 20-30%, the content of total flavone is 1.0-1.3%, and the content of total saponin is 1.2-1.4%. The technical problem that the yield of a prior method for extracting the radix ophiopogonroot is low is solved. The invention discloses the preparation method of the extract, which comprises the following steps of: a, crushing radix ophiopogon root, adding a solvent, stirring, and filtering to obtain radix ophiopogon root slurry; b, taking ethanol or water as an extraction solvent, carrying out spray extraction on the radix ophiopogon root slurry to obtain an extract solution, and carrying out solid-liquid separation to obtain filtrate 1 and filtrate residue 1; c, using the filter residue 1 as a raw material to obtain filtrate 2 and filter residue 2 according to the operations ofthe steps a and b; washing filter residue 2 with water, and separating to obtain filtrate 3 and filter residue 3; d, mixing the filtrates, concentrating and drying to obtain the radix ophiopogon rootextract. The method has the advantages of high yield, short extraction time and cost saving.

The invention discloses an extraction method for erythropalum scandens and a diuretic function. The method is a water decocting method and an ethyl alcohol refluxing and extracting method, and comprises the following steps: taking erythropalum scandens coarse powder, using water or ethyl alcohol as a solvent, wherein a material-liquor ratio is 5-50 times, dipping for 10-200 min, heating on an electric furnace and decocting for 1-3 times, and performing 30-240 min every time, filtering and merging soup, concentrating as an erythropalum scandens aqueous extract or an alcohol extract. The erythropalum scandens aqueous extract and the erythropalum scandens alcohol extract have the remarkable diuretic function. The advantage of the method is as follows: 1, the method is moderate in extraction condition, general flavone, phenolic constituents, resin and triterpene of the erythropalum scandens are not damaged, and effective medicinal components of the erythropalum scandens are reserved in thegreatest degree; and 2, the method is short in extraction time, low in cost, efficient in aqueous extraction / alcohol extraction erythropalum scandens method, safe, effective, economic and diuretic.

The invention discloses a method for detecting the content of heavy metals in an aquatic product. The heavy metals comprise lead, chromium, cadmium, copper and silver. The detection method comprises the following steps of (1) extracting the heavy metals; (2) preparing a heavy metal standard solution; and (3) detecting the content of the heavy metals. The method for detecting the content of the heavy metals in the aquatic product has the advantages of convenience in operation, short heavy metal extraction time, high extraction purity, sensitive and accurate detection and the like, and is practically significant for improving food safety, and the content of the heavy metals in the aquatic product can be accurately, conveniently and efficiently detected.

The invention belongs to the field of Chinese traditional medicine processing and in particular relates to an extraction process of lotus seedpod polyphenols. The invention provides the extraction process of lotus seedpod polyphenols which is short in consumed time and high in yield. The extraction process comprises the following processing steps of: weighing 2.0g of defatted lotus seedpod powder, placing the defatted lotus seedpod powder into a thin-mouth flask, adding a certain amount of 70% acetone according to a material-liquid ratio of 1:10-1:35, placing the thin-mouth flask into a water bath pot (with magnetic stirring), and then placing an ultrasonic probe into the thin-mouth flask (1cm below the liquid level) for ultrasonic assisted extraction, with the extraction temperature being 20-60 DEG C, the ultrasonic time being 10-35 min, and the ultrasonic power being 600-1100W.

The present invention relates to a method for extracting active ingredients from hibiscus sabdariffa calyx, and belongs to the technical field of extraction of active ingredients from hibiscus sabdariffa. The extraction process comprises: crushing dried hibiscus sabdariffa calyx; filling the crushed calyx in a reaction kettle liner of a subcritical water extraction tank; adding water with a pH value of 1.0-3.0 according to a liquid-solid ratio of 15:1-25:1, wherein an extraction pressure is 5-10 MPa, an extraction temperature is 110-150 DEG C, and an extraction time is 20-50 min; filtering; carrying out reduced pressure concentration on the resulting filtrate to a dry state; adding water to dissolve; and carrying out freeze drying to obtain the active ingredient extract of the hibiscus sabdariffa calyx. Compared with the traditional water extraction method and the 30% ethanol extraction method, the method of the present invention has advantages of short extraction time, high extract yield, green environment protection, and no pollution.

The invention provides a method for extracting polyphenolic compounds from seabuckthorn fruit. According to the invention, seabuckthorn dried fruit powder or dry seabuckthorn fruit pomace are well mixed with diatomite, and the mixture is subjected to extraction in an extraction tank; filtering is carried out after extraction is finished, such that an extraction liquid is obtained; the liquid is concentrated and lyophilized, such that polyphenolic compounds in seabuckthorn fruit are obtained. The method provided by the invention has the advantages of short extraction time, low solvent dosage, and high extraction efficiency.

The invention discloses a method for extracting lentinan by virtue of ultrasonic coupling subcritical water. The method comprises the following steps: cleaning, drying, crushing and screening lentinus edodes; putting the lentinus edodes into an extraction kettle; vacuumizing to remove air until the vacuum degree is over 0.05 MPa; pumping preheated deionized water into the extraction kettle at a rate of 10-50L / h; controlling the temperature of the extraction kettle to be 150-190 DEG C and the pressure to be 3-7 MPa; directly treating the materials in the extraction kettle by adopting built-in ultrasound, wherein the extraction time is 20-60 minutes; cooling an extracting solution by virtue of a cooler, and collecting the extracting solution; and performing suction filtration, concentration, ethanol deposition, centrifuging, supernatant removal, washing deposition and drying deposition to obtain the lentinan. The extraction method by virtue of the ultrasonic coupling subcritical water, disclosed by the invention, is good in uniformity, the extraction yield of the lentinan is high, the extraction time is short, and the total oxidation resistance of the lentinan is relatively strong, so that the invention starts an efficient, low-consumption and environment-friendly new method for extracting active polysaccharide.

The invention discloses an aqueous bi-phase system and application thereof to extraction of melamine from tomato ketchup. The aqueous bi-phase system comprises the following raw materials by mass: 35 to 40 percent of 1-butyl-4-picolinium tetrafluoroborate, 26 percent of sodium dihydrogen phosphate and the balance of distilled water, wherein the total percentage of the three ingredients is 100 percent. The application comprises the following steps: adding a melamine solution to be detected into the aqueous bi-phase system according to the mass ratio of 5 to 1; carrying out thermostatic oscillation for 30 minutes under the conditions that the temperature is 30 to 40 DEG C and the pH value is 4.2 to 4.4; carrying out phase separation; then carrying out still standing extraction for 24 hours. The extraction rate of melamine from tomato ketchup can reach up to 98.6 percent according to the application. The application has the advantages that the detection limit is low; the relative standard deviation is relatively low; not only can requirements of related food sanitation departments to melamine detection be met, but also the operation is simple, so as to be suitable for quantitative analysis of melamine from tomato ketchup.

The invention relates to a method for improving palatability of caragana feed. The method comprises the following steps of (1) pretreatment: crushing caragana plants, adding water, uniformly mixing, and preparing an extract; (2) pressurizing treatment: putting the extract in a pressurizing reaction kettle, carrying out pressurizing extraction by using CO2 (carbon dioxide) under the pressure of 1-100MPa for 15 to 30 minutes so as to obtain the pressurized extract; (3) filtrate filtering: filtering the pressurized extract in the step (2), and removing the filtrate to obtain caragana solid particles; and (4) drying: drying the caragana solid particles in step (3) to finally obtain the caragana feed with high palatability. The method has the advantages that the steps are completed at normal temperature and high pressure, the removal rate of tannin from the cargana plants is high by the pressurizing method and reaches more than 90%, the nutrient substances of the caragana plants are basically not consumed, the production technology is simple, the extraction time is short, the production efficiency is high, the energy consumption is reduced, and the practical value is high.

The invention relates to a method for extracting almond protein by microwave. In the method, with almond residuals subjected to oil removal and degrease removal as a raw material, the almond protein is prepared through the steps of raw material sieving, water dissolution, microwave extraction, centrifugal separation, pH value regulation with HCl, vacuum freeze-drying and the like. The invention has the characteristics and beneficial effects: a microwave solution promotion technology is utilized, thus the advantages of energy conservation, environmental friendliness, short extraction time, high extraction rate and the like are achieved; compared with an extraction technology in an ultrasonic environment, the time required by the microwave solution promotion technology is shortened by 20-60min, and the extraction rate of the almond protein under the optimal extraction condition is improved by 16.7%; compared with the common extraction technology, the time required by the microwave solution promotion technology is shortened by 95-105min, and the extraction rate of the almond protein under the optimal extraction condition is improved by 30.7%; meanwhile, when the almond protein is dried, the vacuum freeze-drying technology is utilized, and thus the prepared almond protein product can better maintain the original functional characteristics and nutritional value.

The invention discloses a method for extracting gynostemma pentaphylla seed oil through ultrasonic wave. The method comprises the following steps: peeling gynostemma pentaphylla fruit, picking seeds and then cleaning the seeds, drying, grinding and then filtering by a screen with 65 meshes, weighing powder, taking petroleum ether with the boiling range from 30 to 60 DEG C as extracting solution, and fully shaking up and then extracting under the ultrasonic condition. The method has the advantages that the extracting time is short, the solvent dosage is small, the extracting efficiency is high, the solvent recovering rate is high, the quality of the seed oil is good, the cost is low, and the investment is small.

The invention provides a method for purifying cheliensisin A. The method is characterized by comprising the following steps: taking leaves of goniothalamus cheliensis as raw materials, grinding the leaves to 60-80 meshes, adding the ground leaves to an extraction kettle, extracting the leaves by adopting supercritical CO2, collecting the extracts, adopting a high-speed counter-current chromatography for separation and drying stream under reduced pressure by taking n-hexane-ethyl acetate-methanol-water as a solvent system, thus obtaining cheliensisin A. The method has the advantages of high efficiency, environment friendliness and the like.