97results about How to "Does not destroy activity" patented technology

The invention relates to a method for preparing a biomedical material of a static self-assembly modified nano fiber, which is characterized by comprising the following concrete steps of: stirring and dissolving a water-insoluble macromolecular polymer for spinning in a solvent in a stirring kettle at room temperature to obtain an electric spinning raw material with the weight percentage of 5-30 percent; adding the electric spinning raw material into a static spinning device and statically spinning to obtain a nano fiber template material; soaking the nano fiber template material into a weak polymerized electrolyte aqueous solution which has the concentration of 0.01-10g / ml and an opposite charge, adsorbing for balance and drying; soaking the dried material into the weak polymerized electrolyte aqueous solution which has the concentration of 0.01-10g / ml and the opposite charge, adsorbing for balance, washing by distilled water for 5-30 minutes and drying; and obtaining the biomedical material of the static self-assembly modified nano fiber. The invention has simple molding and high bioactivity.

The invention discloses a method for extracting metallic copper from a waste circuit board. The method comprises the following steps: firstly, crushing the waste circuit board from which elements and parts are removed into blocks, crushing by virtue of a crusher, and sieving by a 30-mesh sieve; sequentially carrying out winnowing and electric separation on the obtained granular powder to obtain a metal concentrate with relatively high copper content; leaching copper ions from the metal concentrate by using a leaching agent water solution which is composed of sodium chlorate, sulfuric acid and water; removing solid substances from the obtained leaching liquid by centrifugal separation or filter press filtration; carrying out five-stage extraction and second-stage reverse extraction on the obtained filtrate to obtain a copper-enriched solution, carrying out electrodeposition on the obtained copper-enrich solution by virtue of an electrode method, thus finally obtaining copper of which the purity is over 99.99% on the cathode material, so as to finish extraction of the metallic copper from the waste circuit board. According to the method disclosed by the invention, the metallic copper can be efficiently extracted from the waste circuit board; the method has the technical characteristics of high efficiency, energy saving, low cost, simple process and the like and is capable of achieving recycling and innocent treatment of the waste circuit board.

The invention discloses a method for synthesizing diphenyl phosphonium chloride. The method includes: performing reaction on raw materials of phosphorus trichloride and excessive benzene under catalyzing effect of Lewis acid ionic liquid, wherein after the reaction, the reaction liquid is divided into two layers, one layer is an ionic liquid layer, and the other layer is a mixed liquid layer. Through direct liquid separation, the ionic liquid layer is extracted, the extract liquor is mixed with the mixed liquid layer, and the mixture is respectively performed with normal pressure distillation and decompression distillation to obtain the target object diphenyl phosphonium chloride and byproduct phenyl phosphonium chloride. The ionic liquid is performed with normal pressure and decompression distillation so as to remove impurities and recover the diphenyl phosphonium chloride. Compared with the existing industrial process, the method has the advantages of being small in catalyst amount, requiring no decomplexing procedure, being easy to operate and control, not generating large amount of waste residue, being low in production cost, environment-friendly in production process and the like, and the catalyst is recoverable.

The invention belongs to the electrochemical electrolytic antifouling field and relates to a long-service-life maintenance-free electrolytic antifouling device which is suitable for being used in seawater; the main body of the device comprises a changeable direct current (DC) electrolytic power supply, an electrolytic anode, a nickel alloy cathode, a time relay, an electrolytic cell shell and a cable; the DC electrolytic power supply can output different directional current, and the time and size parameters thereof are set by a panel or a computer; the electrolysis anode is a metal platinum coating or a mixing metal oxide coating; when the electrolysis anode is electrolyzed over 30 days under various seawater environments, the current efficiency can not be reduced significantly; the cathode conducting the current uses a smooth flat nickel alloy material; the direction for the current leading to an electrolytic cell is switched once per 5 to 30 days; and the reverse current leading to the electrolytic cell every switch is 1 to 10 minutes and the current density is 10 to 100A / m<2>. The invention has the advantages of reliable principle, simple technology process, low cost, good antifouling effect, and long service life of equipment.

The invention relates to an absorbable orthopedic apparatus material having antibiosis and bone growth promotion functions, and a preparation method thereof. The orthopedic apparatus material is obtained by compounding medical pure magnesium or magnesium alloy with an absorbable high-molecular polymer, the surface of the pure magnesium or magnesium alloy has a porous ceramic layer, the surface of the porous ceramic layer is a functional load layer loaded with bone morphogenetic proteins and copper ions with B-type gelatin as a carrier by adopting an electrophoresis-electrodeposition process, the volume fraction of the pure magnesium or magnesium alloy is 1-99%, the micropore aperture and the thickness of the porous ceramic layer on the surface of the pure magnesium or magnesium alloy are 1-100[mu]m and 1-100[mu]m respectively, and the surface of the porous ceramic layer is the functional load layer loaded with bone morphogenetic proteins and copper ions with B-type gelatin as the carrier by adopting the electrophoresis-electrodeposition process. An orthopedic apparatus can slowly release copper ions having a sterilizing effect and bone morphogenetic proteins having a bone growth promotion effect in the use process, can be applied to restore and fix various bone injuries, and has a wide application prospect.

The invention discloses a method for detecting the valence of an antibody. The method comprises the following steps: 1), coupling an antigen on a microsphere to obtain a modified microsphere; 2), mixing and reacting the modified microsphere with an antibody solution; 3), measuring the turbidity of the reaction liquid, so as to determine the valence of the antibody. According to the method provided by the invention, CCP is modified on the surface of a polystyrene microsphere by adopting a vitamin H-streptavidin system, so as to prepare a granular CCP antigen successfully; in case that the granular CCP antigen prepared by adopting the method is used for detecting the valence of anti-CCP antibody in blood serum, the linearity of the detecting result is good, and the detecting process can be completed by 20 minutes, so that the method can be used for acquiring the detecting result more quickly as compared with the conventional ELISA detecting method consuming 2-3 hours.

The invention provides a processing technology for novel white tea and belongs to the technical field of tea leaf processing. According to the white tea treated through the technology provided by the invention, pathogenic bacteria on the surfaces of the tea leaves can be fully killed and pesticides on the tea leaves can be neutralized through treatment by edible acids, and part of cell walls of the tea leaves are broken, so that nutrients of the white tea are more easily soaked. By spraying a decomposing enzyme to the tea leaves which are treated by the edible acids, the cell walls of the tea leaves are further decomposed, and nutrients such as beta-galacturonic acid, glucose, cellobiose and the like are generated. Through quick cooling in four different stages, the phenol ammonia ratio of the content of the tea leaves can be reduced, the proportion of tea polyphenol showing astringency is reduced, the proportion of free state amino acid compounds showing fresh and smooth characteristics is improved, and meanwhile, volatilization of aromatic substances which are easily volatilized in the white tea such as trans-3-hexenyl alcohol, benzyl alcohol and the like, so that the integral quality of the tea leaves is improved.

The invention discloses and provides a leaf surface resistance and control agent for blocking heavy metal accumulation and a preparation method thereof. The leaf surface resistance and control agent is prepared from the following components in parts by weight: 1-3 parts of borax, 5-9 parts of nano silicon dioxide, 10-17 parts of carbon nano tubes, 5-8 parts of a surfactant, 18-31 parts of tea seedcake, 7-9 parts of dunaliella, 13-22 parts of flammulina velutipes fungus chaff, 3-5 parts of betel nut tree sawdust, 9-13 parts of a microbial agent, 3-4.5 parts of orange peel powder, 8-13 parts ofdistillers' grains, 7-10 parts of artemisia apiacea leaves, 25-43 parts of tea saponin, 1-3 parts of citric acid, 12-28 parts of amino acids, 6-11 parts of humic acid and 1000-1500 parts of deionizedwater. The leaf surface resistance and control agent prepared from the raw materials can prevent plants from absorbing heavy metals in air and soil and prevent the heavy metals from damaging the plants. Meanwhile, according to the preparation method of the leaf surface resistance and control agent for blocking heavy metal accumulation, effective components in the raw materials can be fully utilized, and the method is easy to operate and beneficial to industrial promotion.

The present invention discloses one kind of nanometer skin-activating emulsion cosmetics, which is transparent oil-in-water micro emulsion cosmetics prepared with active components including ginsenoside, 3-amino propanol phosphate and vitamin C ethyl ether in 0.50-6.50 wt%, nanometer emulsion matrix in 77.00-95.00 wt% and supplementary material in 1.60-16.80 wt% and through mixing. The nanometer skin-activating emulsion cosmetics has high stability, high transdermal permeability and effects of protecting skin, nursing face, decreasing wrinkles, smoothening skin and delaying skin senility.

The present invention discloses compound actinidia kolomikta fruit jam. The fruit jam comprises the following raw material compositions in mass percentages: 20-40% of actinidia kolomikta fruit slurry,1-10% of mixed fruit residues of actinidia kolomikta fruit peels and lemon residues, 3-8% of enzyme clear liquid, 0.5-4% of actinidia kolomikta fruit seed powder, 40-60% of snow pear slurry, 10-20% of white granulated sugar and 1.5-3% of lemon juice. By adding the enzyme clear liquid, the compound actinidia kolomikta fruit jam can improve body metabolism, regulate gastrointestinal tracts, improvedigestion and absorption, improve immunity, and enhance constitution. During production processes, all the raw materials are fully used, the lemon juice is used for color protection, the lemon residues and actinidia kolomikta fruit peels are used for manufacturing the enzyme clear liquid, the mixed residues of the left actinidia kolomikta fruit peels and lemon residues are beat into slurry, the fruit jam is added, and the mixture can improve the vitamin C content and dietary fibers of the fruit jam and is high in resource utilization rate. The actinidia kolomikta fruit seeds are ground and crushed refinedly, then the fruit jam is added, the delicate mouthfeel, color and luster of the fruit jam are increased, hard shells of the actinidia kolomikta fruit seeds are broken, and the fruit jamis more easily digestible.

The present invention discloses a method of bleaching chemical pulp which combines xylanase with hydrogen peroxide, peracid or mixtures thereof. The method comprises the steps of chemical pulping followed by delignification of the resulting pulp, optionally with oxygen, followed by bleaching of the pulp by combining xylanase with hydrogen peroxide, peracid or mixtures thereof. The method enables a pulp mill to use both xylanase and peracid in one bleaching tower, reducing the use of chlorine dioxide and other bleaching chemicals. The pulp bleaching process of the present invention can be used in a pulp mill as part of a complex pulp bleaching process.

The invention provides an antihypertensive peptide derived from adductor muscle of mytiloida. The preparation steps are as follows: 1) preprocessing; 2) enzymolysis; 3) ultrafiltration; 4) purifying; and 5) drying. The beneficial effects are as follows: inorganic salt, metal ion and other micro-molecular water-soluble impurities and grease are removed in the manner of soaking with deionized water; the enzymolysis condition is mild and the antihypertensive peptide is not damaged; compound enzyme hydrolysis is adopted, the enzymolysis is sufficient, the acquired molecular weight is low, the antihypertensive peptide is easily absorbed by human bodies and the protein loss is prevented; when a centrifugal ultra-filtration pipe is used for extracting the antihypertensive peptide, no concentration gradient exists, the separation speed is high, the protein loss is avoided, the desalination effect is good, and the extraction rate of the antihypertensive peptide is high; through ultra-filtration again, the other proteins with the molecular weight of more than 30-50KD can be effectively removed, the antihypertensive peptide can be further purified and the acquired antihypertensive peptide is high in purity; the invention has the advantages of simple operation steps, advanced production technique, controllable product quality, low cost and high economic benefit.

The invention discloses a manufacturing method of honey pomelo tea. The manufacturing method comprises the following steps: taking a pomelo, and scraping down pomelo peel on the surface layer of the pomelo; cutting the peeled pomelo apart, taking out pomelo pulp, and tearing up the pomelo pulp; taking a lemon and cutting into diced lemon; placing the scraped pomelo peel and the torn pomelo pulp into a pot to mix uniformly, adding honey into the pot, heating the pot with moderate heat, heating while stirring, and turning the heat down until the juice is out; adding diced lemon and the honey into the pot, stirring while adding water at the temperature of 40-50 DEG C into the pot, stopping adding water when the water is 2-3 cm higher than the mixture in the pot, and stopping stirring after the stirring is uniform; turning the heat to the moderate heat to heat the pot for 4-6 minutes, turning the heat down to heat until the water is dried up, and turning off the heat; cooling and packaging. According to the manufacturing method, the pomelo, the pomelo peel and the lemon are used as raw materials; resources are saved, and meanwhile, healthy green drink with health care and rich mouth feel is manufactured.

The invention discloses a moringa seed micro-molecule polypeptide and a preparation process thereof and relates to the field of deep processing of moringa seeds. The moringa seed micro-molecule polypeptide is mainly prepared by performing enzymolysis on moringa seed pulp and a complex enzyme under the natural pH condition, wherein the polypeptide content in the moringa seed micro-molecule polypeptide is more than 50%, and the content of peptide fragments having the molecular weight of less than 1000D in the polypeptide is more than or equal to 85%. The preparation process of the moringa seed micro-molecule polypeptide comprises the following steps: mixing moringa seeds and water, heating, and homogenizing to obtain slurry; cooling the slurry, and performing enzymolysis on the slurry, neutral protease accounting for 0.5-4% of the mass of the moringa seed pulp and alkaline protease accounting for 0.2-0.5% of the mass of the moringa seed pulp at a temperature of 50-60 DEG C under the natural pH condition for 2-8 hours so as to obtain enzymatic hydrolysate; performing enzyme deactivation on the enzymatic hydrolysate, filtering to obtain the filtrate, concentrating and drying the filtrate. The moringa seed micro-molecule polypeptide product is high in content of polypeptide, particularly high in content of micro-molecule polypeptide, and has excellent absorptivity.

The invention relates to liquid fertilizer having an active enzyme and full nutrients of seaweed and a preparation method thereof. The preparation method comprises (1) carrying out enzymolysis on seaweed through compound enzymes at a first temperature to obtain a seaweed enzymatic hydrolysate, (2) filtering the seaweed enzymatic hydrolysate at a second temperature to obtain a clear seaweed liquid, wherein the second temperature is lower than the first temperature and the compound enzymes cannot undergo an enzymatic reaction at the second temperature, (3) concentrating the clear seaweed liquid to obtain a concentrated clear liquid, and (4) adding an acidic protease into the concentrated clear liquid and adjusting the pH of the concentrated clear liquid to 6.5 to 7 so that the liquid fertilizer is obtained. The preparation method realizes long-term preservation without high temperature inactivation treatment, does not damage the active enzyme and nutrients in the seaweed and ensures full nutrients of seaweed and active enzyme in the liquid fertilizer.

The invention discloses green tea ferment jelly. The green tea ferment jelly is made through the following steps of leaching green tea, jasmine flowers, lotus leaves and fagopyrum tataricum with water for 60-80min, and performing filtration so as to obtain green tea fluid; fermenting honey peaches, apples, haws, blueberries, Chinese wolfberry fruits, apple vinegar, dry yeast and the like under the sealed condition for 5-6 months, and performing filtration so as to obtain ferment original fluid; mixing and stirring konjaku flour with collagen,carrageenin and water so as to obtain transparent gum fluid; and uniformly mixing the green tea fluid with the ferment original fluid, the gum fluid, xylooligosaccharide, aspartame and water, performing dissolution, performing filtration, performing filling, and performing microwave sterilization for 1-3min so as to obtain the green tea ferment jelly. According to the green tea ferment jelly disclosed by the invention, nutrient components in the green tea, the jasmine flowers and the fagopyrum tataricum are sufficiently extracted, and the quality guarantee period of the green tea ferment jelly is guaranteed through the oxidation resistance function of tea polyphenols; besides, the ferment original fluid is added, and a low temperature microwave sterilization technique is adopted, so that nutrient components of the green tea ferment jelly are effectively guaranteed; and the green tea ferment jelly has good mouth feel, and besides, has the functions of resisting oxidation, soothing the nerves, beautifying faces and reducing weight.

The invention discloses a honey pomelo tea making method including the following steps: taking a pomelo for peeling pomelo peel of the pomelo surface; cutting the peeled pomelo, taking out pomelo flesh, and shreding the pomelo flesh; putting the scraped pomelo peel and the shredded pomelo flesh into a pot to mix evenly, then adding honey into the pot, heating the pot with a medium fire, heating while stirring the mixture in the pot until juice is produced, turning to a small fire; adding warm boiled water of 40-50 DEG C into the pot while stirring, when the water is 2-3 cm higher than the mixture in the pot, stopping adding of water, and stopping stirring after the stirring is even; turning to the medium fire for heating for 4-6 minutes, turning to the small fire for heating, until the water is dry, tuning off the fire; and cooling for package; and according to the honey pomelo tea making method, the pomelo and the pomelo peel are used as raw materials, resources are saved, and at the same time the healthy green drink beneficial for health is prepared.

The invention discloses a preparation method of a facial mask containing stem cell exosome components. The preparation method comprises the following steps: extracting mesenchymal stem cells, culturing the mesenchymal stem cells, extracting stem cell exosomes, preparing a facial mask material and synthesizing the facial mask. The beneficial effects of the invention are that: the method is suitablefor large-scale production; accidents such as infection in the transportation process are avoided; meanwhile, the problem of mutual infection is also avoided; the integrity and high purity of the rawmaterials of the facial mask in the production process are ensured through twice filtration and advanced sterilization; the functionality of a mask is improved; bletilla striata, ligusticum chuanxiong hort, and lithospermum erythrorhizon are ground and crushed under a negative pressure condition to ensure that the raw materials bletilla striata, ligusticum chuanxiong hort, and lithospermum erythrorhizon are fully ground; the activity is not influenced by temperature, complete functions of the mask are guaranteed, the mask is convenient to prepare and reserve, a mixed chemical solution can guarantee full mixing of the raw materials, the activity of the materials is guaranteed, the materials cannot be lost, all the raw materials can play roles, the absorption efficiency of a user is improved, and maintenance substances can permeate and be absorbed more easily.

The invention discloses a method for concentrating 5-hydroxyl tryptophan. The manufacturing method comprises the steps of pretreatment, ultra-filtrating for clarification and reverse osmosis concentration, wherein in the step of pretreatment, the extract liquid is pre-filtered to remove grains and suspended matters in the liquid in order to protect the reverse osmosis system; in the step of ultra-filtrating for clarification, the pre-treated extract liquid enters the an ultrafiltration membrane system to remove impurities and carry out clarification; and in the step of reverse osmosis, the pre-treated extract liquid enters the reverse osmosis system to be concentrated. The invention has the advantages of high concentration rate, energy-saving, low temperature concentration, no influence on product activity, and the like, thereby reducing the production cost and improving the income obviously.

The invention provides a light aerogel material. Preparation raw materials of the material include a high polymer material and clay. The light aerogel material is a light strong-adsorptivity materialprepared by mixing clay, a hydrophilic high polymer material and other possibly added inorganic raw materials, then using water as a medium to perform high-speed stirring to reach a sticky state and adopting a freeze-drying method. The prepared light aerogel material has a nanoscale and micron-scale structure, so that the material has very large water absorbing capability and very high water absorbing rate. The light aerogel material can serve as cat litter, and the water absorbing capability and water absorbing rate of the material are higher than those of like products. In addition, the light aerogel material is controllable in density, so that the density of the material can meet the demands on different adsorption occasions including cat litter. Furthermore, the material can form an irregular structure with a rough surface through crushing and can also form various special shapes through freeze formation of dies.

The invention relates to an aptamer percolated biochip and a preparation method thereof. The preparation method comprises the following steps: arranging a window on a casing of the biochip; arranging a nitrocellulose membrane, a reverse osmosis layer, a water absorbing layer and a leakage preventing layer in the casing of the biochip from top to bottom; fixing an aptamer molecule for a target substance on the surface of the nitrocellulose membrane, wherein the aptamer molecule is RNA (Ribose Nucleic Acid), DNA (Deoxyribose Nucleic Acid) or modified RNA or DNA. According to the aptamer percolated biochip and the preparation method thereof disclosed by the invention, the defects of limited detection range, low sensitivity, weak specificity, easiness for deterioration, complex process, long reaction time and the like existing in the prior art are overcome; DNA molecules which are specifically combined with target molecules are screened from mass in-vitro single stranded oligonucleotide libraries through SELEX screening and are amplified greatly to obtain an aptamer; in addition, a sample to be detected can quickly pass through a micropore of the nitrocellulose membrane by the percolated biochip; the target molecule of the percolated biochip can be quickly combined with the aptamer on the membrane, so that the reaction time can be greatly shortened; higher sensitivity and specificity are obtained.

The invention discloses a high-brightness stable perovskite magneto-optical microsphere for CTC capture. The preparation method comprises the following steps: by taking polystyrene porous spheres as shells, uniformly encapsulating Fe3O4 magnetic particles and MAPbBr3 quantum dots in the shells by utilizing a self-assembly method, and coating SiO2 shell layers on the surfaces of the shells to successfully construct (MAPbBr3 / Fe3O4)-coated MPSs-coated SiO2 magneto-optical microspheres; through surface modification, connecting a biological specific antibody SA and anti-EpCAM, and specifically capturing and identifying circulating tumor cells (CTCs), wherein perovskite quantum dots selected by the magneto-optical microspheres have high green fluorescence emission and high fluorescence quantum yield; and packaging the porous polystyrene microspheres and coating a silicon shell layer with the porous polystyrene microspheres. Compared with the prior art, the fluorescence stability of the magneto-optical microspheres is remarkably improved, direct contact between the MAPbBr3 quantum dot and a monitoring target object is avoided, the toxicity problem of heavy metal Pb in the biological monitoring process is solved, safety and no toxicity are achieved, and application in biomedicine is well developed. The preparation method disclosed by the invention has the advantages of mild reaction conditions, simple preparation process, short consumed time and relatively low cost.

The invention discloses a processing method for tippy tea. Qintang tippy tea is selected as raw materials. The processing method includes the following steps of acquisition, spreading, fixation, rolling, strip arranging, drying, aroma restoring and packaging and storage. According to the processing method, all the processing procedures are strictly controlled, high quality and high efficiency of processing of the tippy tea can be guaranteed, the yield of the tippy tea is increased, and the quality of the tippy tea is improved.

The invention discloses a castanopsis hystrix pollen collecting and storing method for increasing the germination rate and improving the pollen viability. The method comprises the following steps that when male parent male flowers are in a transitional period of an early blooming period and a full blooming period, male parent male flower inflorescence is collected at 9:00-11:00 or 15:00-17:00; the male flower inflorescence is dried for 12-24 h in a sterile room at the temperature of 22 DEG C-28 DEG C under illumination of 80 W-160 W, when a large amount of anther blows out and a large amount of yellow pollen scatters during gentle shaking, drying is completed; the dried male flower inflorescence is screened with a pollen sieve, pollen is collected and contained in a container, an opening of the container is sealed, and the container is placed in an environment at the temperature of minue 60 DEG C-minus 100 DEG C or liquid nitrogen to be stored. Furthermore, when the pollen needs to be germinated, the stored pollen is placed in a liquid culture medium and can be germinated at the temperature of 25 DEG C-35 DEG C. Accordingly, a castanopsis hystrix pollen collecting, drying, storing and viability detecting system is formed for the first time, the method is simple, rapid and high in operability, the castanopsis hystrix pollen viability can be improved, and the manual cross pollination success rate of castanopsis hystrix can be increased.

The invention discloses an efficient biogas digester for removing slag. The efficient biogas digester comprises an anaerobic fermentation tank; a tank cover is arranged at and matched with the top ofthe anaerobic fermentation tank; a mounting rack is arranged on the top of the tank cover; a bacteria hopper is arranged on one side of the mounting rack while a second exhaust pipe is arranged on theother side; a blanking pipe of the bacteria hopper and the second exhaust pipe are both communicated with the anaerobic fermentation tank; a positive and negative motor is arranged on the top of themounting rack; a disc is embedded on the tank cover; an output shaft of the positive and negative motor is in driving connection with the disc; an external shaft is arranged on the bottom of the disc.The efficient biogas digester for removing slag utilizes a stirring blade and a stirring rod to simultaneously mix the raw materials and bacteria in the anaerobic fermentation tank in the manner of dual overlapping stirring, so that the mixture can be more quickly and uniformly mixed. In the mixing process, a heating pipe and a heating wire are adopted for generating heat, so as to increase the temperature in the anaerobic fermentation tank, promote the activity of strains and accelerate the generation of methane.

The invention relates to the technical field of biological processing, in particular to a method for preparing feed-grade fructo-oligosaccharide by taking molasses as a raw material. The method disclosed by the invention comprises the following steps: (1) preparing a molasses aqueous solution; (2) pretreating the molasses aqueous solution; (3) carrying out enzymolysis; (4) carrying out enzyme deactivation and (5) drying. According to the invention, the processing by-product molasses in the sugar industry is used for replacing cane sugar to prepare the feed-grade fructo-oligosaccharide, the rawmaterial is replaced, the utilization rate of the sugar processing by-product is improved, the additional value of the molasses is improved, the production cost of the fructo-oligosaccharide is reduced, the processing technology is simple, the processing time is short, and the purity of the obtained fructo-oligosaccharide is high.

The invention relates to the field of tea processing, in particular to a making technology of spring tippy tea. The method comprises the procedures of picking, vacuum freezing, withering, leaf selecting, vacuum microwave fixing, spreading for cooling, rolling, deblocking, shaping and the like. According to the making technology, the traditional rolling time is shortened to 6-10 min from original 20-25 min, the spring tippy tea made in the time period is pure in taste, reduced in bitter taste and suitable for consumption of modern urban crowds, the appearance is light green in color and luster, full of fluff and more attractive, the commodity appearance aesthetic feeling is enhanced, market evaluation is good, the tea making yield per unit time is increased, and electric charge and labor charge are reduced.

The invention provides a squid ink oligopeptide extract with lipid metabolism regulation function. The preparation steps include: 1) pretreatment; 2) enzymolysis; 3) ultrafiltration; 4) purification; and 5) drying. The invention has the beneficial effects that: the enzymolysis conditions are mild, energy can be saved, and the ink oligopeptide activity cannot be destroyed; enzymolysis has the characteristics of high efficiency and specificity, also the unique formula of a composite enzymolysis agent can greatly shorten the preparation time, and does not cause protein loss; enzyme hydrolysis is carried out twice, enzymolysis is complete, the obtained molecular weight is small, and the squid ink oligopeptide extract can be easily absorbed by the human body; the use of a centrifugal ultrafiltration tube does not generate a concentration gradient, the separation speed is fast, and protein loss cannot be caused, the desalting effect is good, and the ink oligopeptide extraction rate is high; and ultrafiltration is carried out again for further purification of ink oligopeptide, and the obtained ink oligopeptide has high purity. According to the invention, the operation steps are simple, the production technology is advanced, the product quality is controllable, the cost is low, and the economic benefits are high.

The invention discloses a method used for extracting antioxidative active polypeptides from squid nidamental glands. The method comprises following steps: squid nidamental glands are subjected to supersonic wave immersion in a NaOH aqueous solution, water washing is carried out until pH value of an obtained product is 7, an isopropanol solution is adopted for immersion degreasing, and washing anddraining are carried out; a glycine-NaOH buffer is added into the squid nidamental glands obtained via the above pretreatment, an obtained mixture is mixed to be unidorm, and alkali protease and neutral protease are adopted for hydrolysis so as to obtain an enzymatic hydrolysate; the enzymatic hydrolysate is subjected to grading using an ultrafilter membrane so as to obtain an ultra-filtered enzymatic hydrolysate, and the ultra-filtered enzymatic hydrolysate is subjected to gel column chromatography, ion exchange resin chromatography, and reversed-phase high-performance liquid chromatography purification so as to obtain the antioxidative active polypeptides. The beneficial effects of the method are that: the extraction rate is high; the method is simple; industrialized production is convenient to realize; safety is higher; the added value of squid nidamental glands is increased; the obtained antioxidative active polypeptides is white in color, possesses no fishiness, and is high in heat stability.

The invention relates to a method for high selectively extracting Artemisia vulgaris essential oil. The method comprises the following steps: (I) drying an Artemisia vulgaris raw material, and crushing into powder; (II) placing the Artemisia vulgaris powder in an extraction tank, vacuumizing to -100 kPa, pouring subcritical butane for extraction into the extraction tank as an extraction solvent, completing soaking a folium artemisia vulgaris sample by using the extraction solvent, adding an entrainer hydrophobic ion liquid [C4C10im]CF3SO3 for extraction, wherein the extraction heat is sourcedfrom a far-infrared generation apparatus arranged on the bottom of the extraction tank, and a glass viewing window is formed on the bottom of the extraction tank; and (III) pumping the liquid solventinto an evaporation tank, decompressing the liquid solvent at a constant temperature, and removing the solvent, thus obtaining the Artemisia vulgaris essential oil. The method has the advantages of simple process, low investment, high efficiency, and capability of producing the high-quality Artemisia vulgaris essential oil with high quality in an industrialization manner.