136results about How to "Guaranteed withdrawal rate" patented technology

A method for extracting and refining rutin comprises the following steps of (1) extraction: smashing raw materials, adding organic solvent into the smashed raw materials, performing extraction for 2-4 times, mixing extracting solution and concentrating the mixed extracting solution to thick extract with organic solvent content smaller than or equal to 5wt%; (2) alkali dissolution-acid sediment: adding alkaline water into the thick extract, then heating the mixture and stirring, filtering the heated mixture, regulating pH of alkaline filtrate to be 3-4, standing, filtering, drying to obtain a rutin pure product; and (3) mother liquor treatment: enabling obtained acid mother liquor to penetrate through a chromatographic column filled with resin, after the acid mother liquor penetrates through the chromatographic column, firstly using deionized water to wash a column bed until outflow liquid is neutral and colorless, introducing eluent into the chromatographic column and collecting eluate until outflow liquid is colorless, concentrating the eluate to the volume which is 5-10% of the original volume in a pressure reduction mode, cooling the concentrated eluate to achieve crystallization, filtering, using the deionized water to elute a filter cake, and drying the eluted filter cake to obtain a mother liquor rutin product. The prepared rutin is high in yield and purity, and the quality of the rutin reaches the international standard.

The process of extracting pueraria polysaccharide includes the following steps: milling slurry with kudzu vine root, adding cellulase and protease into the slurry for enzymolysis and simultaneous low strength ultrasonic treatment, adding vitamin C and xylose for protecting color, filtering to eliminate fiber, centrifugally separating the filtrate to eliminate starch, vacuum concentrating the centrifugate, adding alcohol before further centrifugally separating to obtain wet pueraria polysaccharide, and drying to obtain pueraria polysaccharide product. The present invention has raised enzyme activity and substrate converting rate, raised extraction rate of polysaccharide and flavone, effective prevention of browning, and natural color of the product.

The invention relates to the field of extraction and purification of plant effective components, and especially provides a method for separating mogroside V from grosvenor momordica fruits. The methodfor separating mogroside V comprises the following steps: addition of water to grosvenor momordica fruits, pulping, phytoenzyme enzymatic hydrolysis, biological enzyme hydrolysis, collection of the obtained enzymatic hydrolysate, enzyme deactivation, yeast fermentation, composite anion-cation exchange resin purification, and concentration drying for preparing the mogroside V. The product preparedthrough the production method has the advantages of snowy white color, no bitterness, small solvent residual, no pesticide residue and stable quality; and the content of the mogroside V in the product is greater than 60%, and total glycoside content of the product is greater than 90%.

The invention provides a detection method of content of vitamin D in dried blood spot. The method comprises the following steps: infiltrating blood spot by the use of ultrapure water; extracting an object to be detected by the use of acetonitrile and precipitating impurity protein, carrying out PTAD derivation for signal amplification, completing pretreatment of a sample; and completing simultaneous detection of two 25-hydroxy vitamin D by an LC-ESI-MS/MS method for 3 min. According to the pretreatment method, the system is micro, time of a hygroplasm detection method is short, and use amount of an organic solvent is greatly minimized. Thus, the method of the invention is environment-friendly and energy-saving, can be used for large-scale clinic promotion, and has high commercial value.

The invention relates to a method for decomposing scheelite through pressurizing by adopting phosphorus-sulfur mixed acid. According to the main improved point, in the process of extracting the tungsten from the scheelite by using the mixed acid of phosphoric acid and sulfuric acid, pressurization treatment is carried out on a reaction system, so that the temperature of the reaction system is higher than 100 DEG C. According to the method, pressurized high-temperature treatment is carried out on the reaction system of extracting the tungsten from the scheelite by the phosphoric acid and the sulfuric acid, under the condition that the extraction rate of the tungsten is guaranteed, the addition amount of the phosphoric acid and the sulfuric acid is reduced, and the addition of calcium sulfate crystal seeds is omitted; and compared with an existing non-pressurization method, the method still has the advantages of being high in decomposition rate, free of generation of hazardous waste decomposition slag and low in decomposition cost.

The invention discloses an anti-dropping hair growth shampoo and a preparation method thereof. The anti-dropping hair growth shampoo is prepared from, by weight, 80-85 parts of shampoo substrate and 15-20 parts of anti-dropping hair growth lotion, wherein the anti-dropping hair growth lotion is prepared from, by weight, 70-80 parts of fresh ginger-moutan bark extractive lipidosome suspension and 20-30 parts of astragalus membranaceus extractive lipidosome suspension. The anti-dropping hair growth lotion is also prepared from, by weight, 0.01-0.1 part of alpha-cyanogroup-4-p-hydroxyl ethyl cinnamate. The anti-dropping hair growth shampoo has the advantages of having good stability, good detergency, capable of effectively preventing hair loss and inducing and promoting hair growth, having amild formula, having no irritation on scalp, and being suitable for long-term use.

The invention discloses a combined magnetic separation process for selecting weathering sand ilmenite. A titanium ore concentrate with the grade content of 46-52% and an iron ore concentrate with the grade content of 40-65% are obtained by the steps of pulping, screening and waste discarding, strong magnetic tailing discarding, screening, fine ore collecting, coarse grain regrinding, one-selection and two-scavenging and drying and selection. The process can realize relatively independent production of crude ores, middling and concentrates, can adjust the yields and the grades of a titanium middling and a titanium concentrate, and can separate out refined titanium and refined iron.

The invention discloses a method for separating hesperidin, neohesperidin, naringin and synephrine from immature bitter oranges. The method comprises the following steps: (1) heating and leaching; (2)separation of hesperidin; (3) separation of neohesperidin; (4) separation of naringin; and (5) separation of synephrine. The four products obtained by the method disclosed by the invention have highpurity and extraction rate. The content of the hesperidin is up to 99.54% at most, and the extraction rate is 98.29%; the content of the neohesperidin is up to 99.68% at most, and the extraction rateis 97.98%; the content of the naringin is up to 97.17% at most, and the extraction rate is 95.91%; and the content of the synephrine is up to 92.33% at most, and the extraction rate is 97.26%. On thepremise of guaranteeing the extraction rate and the product content, the method achieves comprehensive utilization of the immature bitter oranges, and increases the additional value of the immature bitter oranges; and the method is simple and feasible in process operation, the adopted solvent is low in cost, non-toxic and harmless, and the method has low requirement for production equipment and issuitable for industrial production.

A comprehensive utilization method of lignocellulose biomass comprises the following steps: (a) performing alkaline hydrolysis processing; (b) performing acid hydrolysis of the alkaline hydrolysis residues, separating to obtain a pentose solution and acid hydrolysis residues; (c) performing enzymatic hydrolysis of the acid hydrolysis residues by using cellulase to obtain a glucose solution and enzymatic hydrolysis residues; (d) returning the enzymatic hydrolysis residues to step (b) for acid hydrolysis, or combining the enzymatic hydrolysis residues with new alkaline hydrolysis residues and performing acid hydrolysis processing in step (b), then orderly performing steps (c) and (d), cycling the steps so as to further convert the hemicelluloses into pentose and to perform enzymatic hydrolysis of the celluose into glucose. The method realizes the maximum resource utilization of lignocellulose biomass.

The invention provides cooking liquor which contains ammonium sulfite, urea and anthraquinone or derivatives thereof, wherein the ammonium sulfite accounts for 15-25wt% of absolute dry cotton stalk bark; the urea accounts for 3-8wt% of the absolute dry cotton stalk bark; the anthraquinone or the derivatives thereof accounts/account for 0.01-1wt% of the absolute dry cotton stalk bark; and the pH value of the cooking liquor is 7-8, and the liquor ratio is 1:(3-5). The invention further provides a method for preparing a cotton stalk bark pulp by adopting the cooking liquor, and the method comprises the following process steps: pretreatment, cooking, bleaching, alkaline extraction, concentration and pulping, wherein the process steps are sequentially performed on the cotton stalk bark. The neutral ammonium sulfite is adopted in the cooking liquor, and the cooking liquor simultaneously contains the urea and the anthraquinone or the derivatives thereof, thereby effectively ensuring the extraction rate of the cotton stalk bark pulp; and the cooking waste liquor can be used as a fertilizer, and a mixture of hydrogen peroxide, molybdate and triethylene pentaacetic acid is adopted during bleaching, thereby being very environmentally-friendly. By adopting the preparation method provided by the invention, the cotton stalk bark pulp which has the advantages of high content of cellulose, good whiteness and lower content of pentaose, ash and other impurities can be obtained.

The invention belongs to the technical field of wet metallurgy and particularly relates to a method for extracting gold from geyerite through microwaves. The geyerite is subjected to primary microwave treatment, and the microwaves act on substance molecules by means of the specific property of the microwaves, so that molecular motion is accelerated, mutual friction occurs, a lot of heat is generated, reaction is accelerated, the reaction time is greatly shortened, the production efficiency is improved, and the extracting rate of the gold is ensured; during leaching, the microwaves emitted from a microwave reaction kettle are adopted again to enable the material to be continuously subjected to strengthening reaction and decomposition, and thus the leaching rate of the gold is greatly increased; and in addition, the reaction time is further greatly shortened through microwave reaction and shortened from 72 h to 2 h, so that the production efficiency is greatly improved.

The invention discloses an extraction separation method of polydatin. According to the method, polygonum cuspidatum leaves are adopted as the raw materials, technology procedures including alcohol extraction, degreasing in diethyl ether, water solution for filtering, resin column chromatography isolation and the like are adopted, and polydatin the content of which reaches 70% or above is prepared;the separation effect is remarkable, and a product the content of which reaches 98% or above can be obtained after simple recrystallization. The process of the method is simple, the recovery rate ishigh, the purity is high, and the method is suitable for industrial production.

The invention relates to a method for extracting proteins from peony seed meal, and belongs to the technical field of plant extraction. The method comprises six steps: degreasing, enzymatic hydrolysis, ultrasonic alkali extraction, obtaining of a crude peony seed meal protein, purification and obtaining of the peony seed meal protein. Enzymatic hydrolysis and ultrasonic alkali extraction are cooperatively used for extracting the protein from the peony seed meal, and various process conditions in the extraction process are set reasonably to ensure high protein extraction rate. The method is simple and easy to operate, low in cost and suitable for industrialized production and promotes the development of peony seed oil and deep processing industrialization.

The invention relates to a dendrobium polysaccharide extract, and a preparation method thereof. The preparation method comprises following steps: 1, pretreatment, wherein dendrobium raw material is prepared, and is crushed so as to obtain a raw material powder; 2, extraction, wherein the raw material powder is added into water so as to obtain a pre-mixed solution, the pre-mixed solution is subjected to high differential pressure continuous extraction, an obtained extracted solution is collected, the extraction pressure of high differential pressure continuous extraction is controlled to be -0.1 to 50MPa; 3, separation, wherein the extracted solution is subjected to centrifugation, an obtained supernatant is collected and is subjected to microfiltration so as to obtain a microfiltered clearliquid; and 4, condensation, wherein the microfiltered clear liquid is subjected to condensation so as to obtain the dendrobium polysaccharide extract. The preparation method is capable of increasingdendrobium polysaccharide yield with ensured dendrobium extraction efficiency, and is capable of realizing industrialized continous large scale production.

The invention discloses a preparation method of salidroside. The preparation method comprises removing rhizome soil of the salidroside, washing and drying; pulverizing the rhizome of the salidroside,adding a buffer solution and conducting enzymatic hydrolysis with biological enzyme to obtain an enzymatic hydrolysate; conducting enzyme deactivation, filtering, collecting a filtrate and conductingspraying and drying to obtain a salidroside crude extract; adding ethanol to the salidroside crude extract to prepare an ethanol extract; adding hydrochloric acid to the ethanol extract, stirring andheating to prepare a preliminary extraction solution; centrifuging the preliminary extraction solution, removing a precipitate, taking a supernatant and applying static pressure at room temperature toobtain a high pressure extraction solution; extracting the high pressure extraction solution repeatedly, adding a macroporous adsorption resin material, eluting with ethanol to obtain a purified solution; concentrating the purified solution, conducting evaporation crystallization and pulverizing to obtain a salidroside powder product. The compound enzyme is utilized to hydrolyze the salidroside,maximize the dissolution of the salidroside, ensure the extraction rate and improve the purity of the salidroside.

The invention discloses a high-efficiency soybean meal protein extraction device and method. The extraction device mainly comprises: a tank body A and a tank B which are arranged in parallel; a centrifuge A and a centrifuge B which are symmetrically arranged at the upper ends of the tank body A and the tank body B correspondingly; and a post-treatment tank arranged at the side edges of the tank body A and the tank body B. One part of the high-efficiency soybean meal protein extraction device is used for extraction, the other part is used for hydrolysis, and the two parts can be repeatedly used multiple times as demanded, so the protein extraction efficiency is improved, and the occupied area and the purchasing cost of the device are reduced. The high-efficiency soybean meal protein extraction method comprises two-time extraction and two-time hydrolysis, the extraction mainly uses an alkali dissolution technology, and the two-time extraction guarantees the protein extraction rate and reduces the waste of a liquid obtained after separation; and the hydrolysis is mainly used for separating a small amount of proteins combined with fats in soybean meal, so the protein extraction rate is effectively improved.

The invention relates to a co-production method for inulin and fructo-oligose syrup by taking fresh or dry jerusalem artichoke or endive as the raw material. The method comprises the following steps: pre-treating the raw material, digesting, filtering, desalting, concentrating and crystallizing. According to the invention, an inulin preparation process is simplified, the reaction condition is relatively mild, the equipment investment is less and the energy consumption is low; the purity of the prepared inulin is above 96%, the extraction ratio of inulin is above 90% and the content of fructo-oligose in the fructo-oligose syrup is above 75%; the additional value of jerusalem artichoke or endive deep processing is greatly increased; the method also can meet the requirement for high-quality inulin and fructo-oligose syrup products in the domestic market.

The invention relates to a processing method of a modified Artemisia sphaerocephala Krasch gum emulsifier and belongs to the technical field of food additive production. The modified Artemisia sphaerocephala Krasch gum emulsifier is prepared through hot alkali liquid extraction, HCl neutralization, ultrafiltration concentration and spray drying and has good emulsification effects and stable emulsibility. The processing method has a high Artemisia sphaerocephala Krasch gum extraction rate, realizes a low cost, produces less waste liquid and is suitable for industrial production.

A deep-cooling air separation system of a newly-added nitrogen producing tower mainly comprises a molecular sieve purifier, an air booster, a booster expansion turbine, a structured packing tower anda full-rectification hydrogen-free argon producing tower. Air which is cooled by an air cooling tower enters the molecular sieve purifier which is switched to be used, the air booster continues to increase the pressure of a stream of feed air purified by the molecular sieve purifier and discharges two streams of air, and air which is pressurized by the air booster is discharged in two streams.

The invention provides a method for extracting total thioglycosides from Raphanus sativus seeds, which includes frying Raphanus sativus seeds, degreasing, extracting, and performing column separation to obtain the degreased total thioglycosides. The method has reasonable design, and is simple and practical; the extracted total thioglycosides has high purity.

The invention relates to an extraction method of peanut red skin pigment. The method includes the steps of: (1) crushing: crushing peanut red skin to obtain peanut red skin powder; (2) enzymolysis: firstly preparing the peanut red skin powder into a 5-15% by weight of a suspension, adding cellulase, conducting enzymolysis for 30-45min, and performing filtration to obtain peanut red skin enzymolysis filtrate; (3) drying: drying the peanut red skin enzymolysis filtrate into powder to obtain peanut red skin enzymolysis powder; (4) ultrasonic extraction: dissolving the peanut red skin enzymolysis powder in ethyl acetate, conducting ultrasonic extraction 1-3 times, conducting filtration and combining the filtrate to obtain an ethyl acetate extracted solution; (5) extraction: filtering the ethyl acetate extracted solution, then extracting the ethyl acetate extracted solution with water, and concentrating the water solution obtained by extraction to obtain a peanut skin red pigment peanut red skin pigment; and (6) conducting freeze drying to obtain the product. The final product obtained by the method provided by the invention not only has high purity, but also ensures the extraction rate.