67results about How to "Promote high-value utilization" patented technology

The invention relates to a method for separating and concentrating nutrient from biogas slurry by utilizing selective electrodialysis and belongs to the field of water pollution control and resource regeneration. The method comprises the following steps: adopting a pre-treating method for removing suspension and colloid particles in the biogas slurry; performing solid-liquid separation; pumping supernate into an electrodialysis system with an anion-cation selective exchanging film, separating and concentrating PO4<3->, NH4<+> and K<+>; after separating and concentrating, acquiring a concentrated solution containing PO4<3-> as a polar solution 1 and the concentrated solution containing NH4<+> and K<+> as a polar solution 2 acquired by a selective electrodialysis system. The method for separating and concentrating nutrient from biogas slurry by utilizing selective electrodialysis provided by the invention can establish a basis for recycling phosphorus of biogas slurry or concentrating nitrogen phosphorus and potassium nutrient and acquiring high-value commodity fertilizer, is beneficial to the increasing of the use ratio of the biogas slurry, is capable of boosting the high-value utilization of the biogas slurry resource and has positive significance in sustainable development of ecological environment.

The invention provides a dietary fiber nutrient biscuit produced by utilizing clitocybe maxima stems and a preparation method thereof. The dietary fiber nutrient biscuit is prepared by using clitocybemaxima stems and flour as main raw materials and adopting the following steps of adding and mixing white granulated sugar, palm oil, starch, ammonium bicarbonate, sodium bicarbonate, table salt, flavoring agent and water, rolling, standing still, molding, baking, injecting oil, cooling and finishing. The invention improves the protein content of the biscuits by directly utilizing the high-qualityedible fungus protein of the clitocybe maxima stems without adding high-fat and high-cholesterol animal proteins, meets the requirement on upholding the edible fungus protein of consumers at presentand also reduces high cost of the animal proteins. The invention produces the functional nutrient biscuits being rich in dietary fibers, the edible fungus protein and various biological active mineralsubstances by utilizing the characteristics of low price, high dietary fiber and high quality protein content of the clitocybe maxima stems.

Through the technology comprising the following three main processes such as dehydrogenated rosinalkyl glycidyl ether preparation, water-soluble chitosan-oligosaccharide preparation and (2-hydroxy-3-dehydroabieticoxy) propyl chitosan-oligosaccharide preparation, a nonionic surfactant, namely (2-hydroxy-3-dehydroabieticoxy) propyl chitosan-oligosaccharide, taking rosin and chitosan as raw materials is obtained. The processes are as follows: obtaining the dehydrogenated rosinalkyl glycidyl ether through addition cyclization reaction of dehydroabietic alcohol and epoxy chloropropane; then carrying out reaction between the dehydrogenated rosinalkyl glycidyl ether and the chitosan-oligosaccharide which is 500 to 50,000 in molecular weight and is generated through oxidative degradation of the chitosan; finally, generating the novel nonionic surfactant (2-hydroxy-3-dehydroabieticoxy) propyl chitosan-oligosaccharide of which an average grafting degree of a glucosamine unit ranges from 5% to 300%.

The invention relates to a method for preparing a phenolic compound through bagasse lignin. The method for preparing the phenolic compound through bagasse lignin comprises the steps that the bagasse lignin and a nano micro-size perovskite type catalyst are sufficiently mixed, pressed into pieces to be formed and pulverized into particles, wherein the mass ratio of the bagasse lignin to the catalyst is 0.1: 1-5: 1, and catalytic conversion is conducted through the bagasse lignin under the conditions that the reaction temperature is 300-700 DEG C and the reaction time is 1-3 hours, so that a liquid product containing the phenolic compound is obtained. The catalyst is LaxSr1-xFeO3 or CaZrxFe1-xO3, wherein x is less than or equal to 0 and greater than or equal to 1, and the catalyst is nano micro-size perovskite type metal oxide which is prepared through hydro-thermal synthesis. The nano micro-size perovskite type catalyst prepared through a hydro-thermal synthesis method has high catalytic conversion activity for bagasse lignin, and selectivity of the phenolic compound is greater than 60%.

The invention discloses a method for preparing a biomass type coal adhesive from boghead coal and co-producing biomass type coal and an organic fertilizer, which comprises the following steps of: crushing boghead coal, adding alkaline liquor to boil, keeping the temperature, standing, and taking supernate as the biomass type coal adhesive; mixing corn straws, coal gangue with soft coal after crushing, adding the biomass type coal adhesive, solid sulphur and a waterproof agent, after uniformly mixing the biomass type coal adhesive, the solid sulphur and the waterproof agent with water, and extruding, forming and drying through a forming machine to obtain biomass type coal; and filtering biomass type coal adhesive preparation residues, adjusting pH, adding cow dung to ferment, and dosing, pelleting and drying to obtain the organic fertilizer. According to the invention, the abundant boghead coal resource in inner Mongolia is utilized for developing cheap adhesive; the biomass type coal, which has the advantages of being low in cost, high in sulphur content, moisture-proof and water-resistant and is applicable to an industrial furnace, is developed by utilizing abundant coal gangue resource and corn straw resource; and residues after preparing the biomass type coal adhesive from boghead coal are used for preparing the organic fertilizer, and therefore, the method disclosed by the invention is capable of saving energy, reducing emission, reducing the production cost of the biomass type coal, and increasing the additional value of boghead coal and the utilization rate of coal gangue.

The invention discloses a method for extracting celluloses, hemicelluloses and lignins from pennisetum hydridum. The method includes: (1) adding benzene-alcohol mixed liquid into the pennisetum hydridum to realize dewaxing, adding water into dewaxed pennisetum hydridum, extracting, filtering, and drying to obtain pretreated pennisetum hydridum; (2) sequentially adding NaOH-H2O2 mixed solution and tetraacetylethylenediamine into the pretreated pennisetum hydridum, treating for 1-4h at the temperature of 55-95 DEG C, filtering, and drying filter residues to obtain the celluloses; (3) adjusting a pH value of filtrate with the celluloses extracted to 5.0-5.5, adding ethyl alcohol to realize precipitation of hemicelluloses, and centrifugally separating to obtain the hemicelluloses; (4) recovering the ethyl alcohol in supernatant obtained after centrifugal separation at the step (3), adjusting a pH value of raffinate with ethyl alcohol recovered to 1.5-2.5, and centrifugally separating to obtain the lignins. By adoption of the method, the celluloses, the hemicelluloses and the lignins can be sequentially and effectively extracted in the same process, high extraction rate is realized, and high-value utilization of wood fibers in the pennisetum hydridum is improved.

A nonionic surfactant (2-hydroxyl-3-dehydrofiroxy) propyl ethoxyl chitosan is prepared from rosin and chitosan as raw materials is obtained through a process including the following three main process steps: preparation of dehydrofiroxy glycidyl ether, preparation of water soluble ethoxyl chitosan and preparation of (2-hydroxyl-3-dehydrofiroxy) propyl ethoxyl chitosan. The preparation method comprises the following steps: carrying out addition and cyclization reactions on dehydroabietinol and epichlorohydrin to obtain dehydrofiroxy glycidyl ether; then, reacting with water-soluble ethoxyl chitosan generated through hydroxyethylating chitosan; and finally generating the novel nonionic surfactant (2-hydroxyl-3-dehydrofiroxy) propyl ethoxyl chitosan, wherein the average grafting degree of (2-hydroxyl-3-dehydrofiroxy) propyl of a glucosamine unit is 5-100% and the average grafting degree of ethoxyl is 5-300%.

The invention belongs to the field of macromolecule composite materials and 3D printing materials, and in particular relates to lignin micro / nanosphesres and a related enhanced polylactic acid 3D printing material for an FDM (fused deposition modeling) type 3D printing technique. The lignin micro / nanosphesres and the enhanced polylactic acid 3D printing material thereof are prepared from natural lignin, an organic solvent, polyvinyl alcohol and polylactic acid as raw materials through a constant-temperature water bath reaction and blending extrusion. The preparation process comprises mixing, water bath heating, drying, blending extrusion, wire drawing, and the like, the whole preparation process is simple and high in repeatability, the prepared 3D printing material has remarkably improved mechanical properties and good processing performance when being compared with pure polylactic acid, and compared with a common lignin enhanced polylactic acid 3D printing material, the 3D printing material is high in glossiness, not liable to cause end blocking or edge warping in printing, and has high application values in fields such as household articles, decoration, lamps and art and model designing.

The invention discloses low-temperature instant agar and a preparation method thereof. The method comprises the steps: soaking seaweeds in an alkaline solution, and executing heating and filtering toobtain alkali-treated seaweeds; filtering and washing the alkali-treated seaweeds to obtain seaweeds washed for the first time; soaking the seaweeds in a bleaching agent, and executing even mixing, standing and filtering to obtain bleached seaweeds; soaking the bleached seaweeds in an acidic solution, and executing even mixing, standing and filtering to obtain acidified seaweeds; filtering and washing the acidified seaweeds to obtain seaweeds washed for the second time; adding the seaweeds washed for the second time into water, executing even mixing, heating and centrifuging to obtain a glue solution; adding a hydrogen peroxide solution, carrying out a methoxy group removing reaction, adding a biological enzyme, executing even mixing, and introducing ozone-containing gas into the glue solution; executing drying, crushing and sieving to obtain the low-temperature instant agar. The low-temperature instant agar prepared by the preparation method has low dissolving temperature, high gel strength, no introduction of other substances, high safety and good quality.

The invention discloses a sea cucumber fruity beverage and a processing method thereof. The processing method of the sea cucumber fruity beverage comprises the following steps: adding water into a fresh sea cucumber, grinding directly, performing enzymolysis by adopting sea cucumber autolytic enzyme, flavourzyme and lipase in sequence to obtain a sea cucumber enzymolysis material, fermenting the sea cucumber enzymolysis material by utilizing yeast to obtain sea cucumber enzymatic hydrolysate; mixing the sea cucumber enzymatic hydrolysate with pomegranate juice, blueberry fruit pulp and mulberry fruit pulp to prepare the sea cucumber fruity beverage. According to the sea cucumber fruity beverage and the processing method thereof, a beverage product which has good sensory quality, unique taste, and the healthcare effects of resisting fatigue, nourishing yin to moisten dryness, inducing saliva and slaking thirst, resisting oxidation and the like is developed by matching the sea cucumber with healthcare beverages of pomegranate, blueberry and mulberry with synergetic effect and good flavor, which is of great significance to promote deep processing of sea cucumber products, enhance the added value of the sea cucumber products and enrich the variety of sea cucumber products in the market.

The invention discloses a preparation method of an easily degradable packaging material with a fish scale collagen matrix, and belongs to the technical field of food packaging and processing. The material is prepared by taking fish scale collagen prepared by extracting collagen from fish scales of freshwater fishes as a matrix and adding wheat starch, pomegranate flower extract, essential oil, glycerol and sodium alginate. The environmental pollution caused by waste fish scales can be reduced, and high-valued utilization of fish scales is realized. The process is simple, and the prepared packaging material has high tensile strength, excellent toughness and plasticity and good antibacterial and antioxidant effects, can be degraded in the natural environment and does not pollute the environment.

The invention discloses a continuous pyrolysis biomass coke, gas and oil poly-generation system, which comprises a biomass pyrolysis assembly, a coke reforming assembly, a tar reforming assembly and abio-oil condensing assembly, wherein the biomass pyrolysis assembly is used for carrying out pyrolysis to obtain a gaseous volatile component and solid coke; the tar reforming assembly is used for accommodating an oxygen carrier and reforming the gaseous volatile component based on chemical chain oxygen decoupling; the tar reforming assembly is further connected with an oxygenization chamber andis used for reloading oxygen onto the oxygen-lost carrier to obtain the oxygen carrier cyclically applied in the tar reforming assembly; and the coke reforming assembly is used for reforming the solidcoke under the action of gas containing a non-zero valence nitrogen element. According to the continuous pyrolysis biomass coke, gas and oil poly-generation system, the biomass pyrolyzed gaseous volatile component is converted in a chained manner by introducing the oxygen carrier on the basis of the chemical chain oxygen decoupling, and all the functional assemblies in the poly-generation system,connecting relations of the functional assemblies and corresponding cooperating work modes are improved, so that high-quality biomass oil, biomass coke and combustible gas can be prepared.

The invention discloses a chitosan / perovskite nanometer composite film as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing chitosan iodide; (2) dissolving methylamine salt, the chitosan iodide and lead iodide or lead chloride in DMF in a closed environment; introducing a protective gas; stirring for 6h to 10h at the temperature of 55 to 65 DEG C to prepare a perovskite precursor solution; (3) spin-coating the obtained perovskite precursor solution to obtain the chitosan / perovskite nanometer composite film. The prepared chitosan / perovskite nanometer composite film is applied to a solar photocell structure and has the advantages of effectively increasing the filling rate of a solar cell and also improving the energy transformation efficiency of the cell to a certain extent. The preparation method disclosed by the invention is clean, simple and free of pollution in preparation process and is suitable for large-scale production.

The invention relates to a method for processing composite tablet candies by using sea cucumbers and blueberries. The method comprises the steps of removing organs of fresh and alive sea cucumbers, cleaning the sea cucumbers and then blanching with hot water; adding water into the blanched sea cucumbers and mincing, and then adding compound protease and flavor protease for carrying out enzymolysis; centrifuging, then taking supernatant of the enzymolysis, and carrying out freeze-drying to obtain sea cucumber enzymolysis powder; cleaning fresh blueberries and then pulping, adding microcrystalline cellulose and evenly mixing, drying by using hot air, crushing and screening; crushing the sea cucumber enzymolysis powder, sugar alcohol and magnesium stearate and screening; after that, putting premixed materials into a mixer, and adding water for mixing; pouring the materials into a hopper of a tablet press, and tabletting in the environment of room temperature to obtain tablets; irradiating the obtained tables under an ultraviolet lamp, and then packaging to obtain finished products. The technology has the main characteristic of promoting the higher value application of the existing sea cucumber breeding resources, stretching the development of the sea cucumber industry chain, prolonging the sea cucumber processing industrial chain, facilitating the sound progress of the sea cucumber industry, and meeting the market requirements; the product has very high economic value.

The invention discloses a method for separating and concentrating nitrogen, phosphorus and potassium from biogas slurry by electrodialysis, relates to the technical field of waste resource utilization, and can realize separation and concentration of nutrients such as nitrogen, phosphorus and potassium in the biogas slurry so as to facilitate promotion of high-valued utilization of nutrient resources in the biogas slurry. The method for separating and concentrating nitrogen, phosphorus and potassium from biogas slurry by utilizing electrodialysis comprises the following steps: pretreating the biogas slurry by adopting a sand filtration and ultrafiltration combined process, removing suspended and colloidal particles, and carrying out solid-liquid separation; and concentrating the filtered biogas slurry through an electrodialysis system, so as to keep the contents of nitrogen, phosphorus and potassium in the biogas slurry 25% or more. The method is mainly applied to biogas slurry treatment.

The invention discloses a chitosan / perovskite nanometer composite film as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing chitosan iodide; (2) dissolving methylamine salt, the chitosan iodide and lead iodide or lead chloride in DMF in a closed environment; introducing a protective gas; stirring for 6h to 10h at the temperature of 55 to 65 DEG C to prepare a perovskite precursor solution; (3) spin-coating the obtained perovskite precursor solution to obtain the chitosan / perovskite nanometer composite film. The prepared chitosan / perovskite nanometer composite film is applied to a solar photocell structure and has the advantages of effectively increasing the filling rate of a solar cell and also improving the energy transformation efficiency of the cell to a certain extent. The preparation method disclosed by the invention is clean, simple and free of pollution in preparation process and is suitable for large-scale production.

The invention discloses a production method of swimming crab roe oil with high EPA and DHA content. The method comprises the steps of (1) taking crab roes; (2) drying; (3) carrying out enzymolysis; (4) carrying out centrifugal separation; (5) carrying out cholesterol reduction; (6) carrying out decoloration; (7) carrying out deodorization; and (8) carrying out dehydration. The production method of the swimming crab roe oil with high EPA and DHA content is simple in process, stable and controllable in process, high in operability and high in crab roe oil extraction rate; the prepared crab roe oil product is high in relatively content of EPA and DHA, good in color and luster permeability, is free of obvious sea smell and low in moisture content.

A regenerated cellulose pellet containing sheet nanometer ZnO inside and a preparing method thereof are disclosed. In the regenerated cellulose pellet that is a novel material, the thickness of ZnO nanosheets is 20-50 nm, and the diameter of the regenerated cellulose pellet is 2-4 mm. The method includes subjecting dissolved cellulose fibers, as a raw material, to low-temperature pretreatment, dissolving, injection for pellet formation, in-situ synthesis and freeze-drying to prepare the regenerated cellulose pellet containing sheet nanometer ZnO inside, with an aqueous ZnCl2 solution being adopted as a solvent for the cellulose and a zinc source of nanometer ZnO. The material is easy to recover and high in practicability.

The invention belongs to the technical field of bioengineering fermentation, in particular to a method for producing gamma-polyglutamic acid by solid-state fermentation of soy sauce residue. The method comprises the following steps: preparing a solid fermentation medium for soy sauce residue and performing activating culture of Bacillus licheniformis strain; inoculation and performing solid-statefermentation processes: inoculating Bacillus licheniformis in the solid fermentation medium prepared in step 1 for solid-state fermentation, and producing the gamma-polyglutamic acid; extraction of gamma-polyglutamic acid: performing separating and purification on the medium containing gamma-polyglutamic acid in step 2 to obtain the purified gamma-polyglutamic acid. The method has the beneficial effects that: soy sauce residue and agricultural waste auxiliary materials such as bran and gluten are used as a solid fermentation substrate to produce gamma-polyglutamic acid, the gamma-polyglutamicacid is prepared, the environmental pollution problem caused by untimely or improper treatment of soy sauce residue can be solved, and the soy sauce residue turns into treasure.

The invention discloses a method for simultaneously preparing activated carbon and essential oil. The method is characterized in that the branches, leaves, barks, roots and the like of fragrant plantsare used as the raw materials, and a drum type flowing gas burning furnace and special activating composition which can be fully recycled and reutilized are utilized, so as to prepare wooden activated carbon with high discoloring ability. The prepared activated carbon has the advantages that the adsorbing ability is higher, and the purity is higher; the essential oil byproduct can be recycled, sothat the economic benefit is increased.

The invention discloses a method for producing 2,3-butanediol by using Chinese herbal medicines which are rich in starch as raw materials for fermentation, belonging to the bio-chemical technology field. The method is characterized in that the Chinese herbal medicines which are rich in the starch are taken as the raw materials, saccharified liquid is obtained by liquefaction and saccharification,the saccharified liquid is taken as a carbon source and mixed with inorganic salt nutrition ingredients after sterilization, a strain for producing the 2,3-butanediol is inoculated for carrying out the flask-shaking fermentation, the batch fermentation or the fed-batch fermentation through the supplement of solid glucose, thereby obtaining the 2,3-butanediol with higher concentration. The method has the effects and the advantages that, the raw materials are easy to take, the problems of competing grain with people, competing land with grain, and the like do not exist, the method can effectively reduce the production cost of the 2, 3-butanediol by using the biotransformation method and simultaneously obtain the 2, 3-butanediol with the higher concentration, thereby having broad prospect for high-value utilization of the Chinese herbal medicines.

The invention belongs to marine chemical engineering technologies, and particularly relates to chitosan and an application of chitosan derivatives serving as fine particulate scavenging agents. According to the chitosan and the application of the chitosan derivatives, by the aid of adsorption characteristics of the natural marine biological amino polysaccharide-chitosan and the chitosan derivatives, the chitosan and the chitosan derivatives are used for fine particulates in sedimentation air, so that a new path is that marine biological resources are applied to land industries and developed, a new method for preventing haze is provided, living environments of residents are improved, human health level is improved, and the chitosan and the application of the chitosan derivatives have important social significance.

The invention discloses a method for preparing hydrogen-rich gas by catalyzing biomass tar cracking through aluminum smelting waste residues, which comprises the following steps: adding the aluminum smelting waste residues into medium strong acid, soaking for 2-4 hours, filtering, and baking the obtained precipitate at 300-400 DEG C for 3-6 hours to obtain pretreated aluminum smelting waste residues; adding the pretreated aluminum smelting waste residues into weak acid, performing ultrasonic treatment, performing centrifugal separation on an aluminum ash solution, baking for 3-6 hours at the constant temperature of 400-500 DEG C in an air atmosphere, and naturally cooling to room temperature to obtain a cracking catalyst; the method comprises the following steps: uniformly mixing a cracking catalyst and biomass according to a mass ratio of 1: 1, adding the mixture into a first-stage pyrolyzing furnace in an N2 atmosphere, and heating from room temperature to 500-900 DEG C to obtain first-stage pyrolyzing gas; and the first-stage pyrolysis gas enters a second-stage pyrolysis furnace for secondary catalytic cracking, and hydrogen-rich gas is obtained. According to the method, the hydrogen yield can be effectively increased by 200% or above, the tar yield is effectively reduced, the liquid yield is controlled to be 11% or below, and heavy components in the tar are greatly reduced.

The invention belongs to the technical field of food processing, and particularly relates to a making method of composite edible mushroom hard bean curd. The making method of the composite edible mushroom hard bean curd comprises the following steps of 1, preparing composite edible mushrooms; 2, performing mixing; 3, performing one-time extrusion molding; 4, cutting cup a semi-finished product obtained in the step 3 through a vegetable cutter for use; 5, performing recombination; 6, performing second-time extrusion molding; 7, performing seasoning; 8, performing sterilization packaging. The making method of the composite edible mushroom hard bean curd has the advantages that the Changbai mountain special local product edible mushrooms and textured soybean protein are composited to make the hard bean curd, and the defect that traditional hard bean curd is not balanced in nutrient is overcome; the edible mushrooms are abundant in nutrient and delicious in taste, the novel hard bean curd is produced by compositing the edible mushrooms and soybean tissue protein, the taste of the traditional hard bean curd is improved, the variety of the hard bean curd is enriched, and deep processing of the edible mushrooms is promoted; high-valued utilization of the edible mushrooms is enhanced.

The invention discloses a method for preparing food-borne ACE inhibitory peptide through frequency sweep ultrasonic coupling enzymolysis, and belongs to the technical field of preparation of food-borne ACE inhibitory peptide. The method for preparing food-borne ACE inhibitory peptide through frequency sweep ultrasonic coupling enzymolysis comprises the steps of carrying out frequency sweep ultrasonic treatment on zein, and then carrying out protease enzymolysis on the zein. The finally prepared food-borne ACE inhibitory peptide has high ACE inhibitory activity, and the highest ACE inhibitory activity can reach 81.77%; compared with traditional enzymolysis, the method has the advantage that the activity of the ACE inhibitory peptide is improved by 42.35%; and compared with a traditional ultrasonic-assisted enzymolysis method, the method has the advantage that the activity of the ACE inhibitory peptide is improved by 26.20%. Therefore, the food-borne ACE inhibitory peptide prepared through the method has wide application prospects in preparation of drugs, health care products, food or preparations with the blood pressure lowering effect.

The invention provides a tuber steudnerae henryanae color protective agent, a canned ready-to-eat soft-package tuber steudnerae henryanae can and a processing method thereof. The processing method includes: placing peeled tuber steudnerae henryanae in a primary color protective solution for dipping treatment prior to placing in a secondary color protective solution for dipping treatment after leaching, and then performing vacuum and sterilization treatment, wherein the primary color protective solution is formed by adding water to a primary color protective agent, and the primary color protective agent is prepared from, by weight, 0.005-0.025 parts of disodium ethylenediamine tetraacetic acid, 0.2-0.5 part of phytic acid and 0.1-0.5 part of ascorbic acid; the secondary color protective solution is formed by adding water to a secondary color protective agent, and the secondary color protective agent is prepared from, by weight, 0.05-0.6 part of calcium chloride, 0.1-0.5 part of citric acid, 0.1-0.5 part of acetic acid, 0.01-0.05 part of sodium deoxyacetate and 10-15 parts of xylitol. By the arrangement, enzymatic browning and non-enzymatic browning in the process of processing can be inhibited, and the sensory quality of the tuber steudnerae henryanae products is improved.

The invention provides a nano-hydroxyapatite / N-malely chitosan composite material, a preparation method and application thereof. The preparation method comprises the following steps of: firstly, taking oyster shell powder as a raw material, and carrying out hydrothermal reaction with sodium pyrophosphate to generate nano-hydroxyapatite; and then, carrying out acid-base complexing, alkali precipitation and vacuum freeze drying on the nano-hydroxyapatite and N-malely chitosan by a solution blending method so as to obtain the nano-hydroxyapatite / N-malely chitosan composite material. The compositematerial is used as a carrier to be subjected to ion exchange with palladium to prepare an efficient heterogeneous metal palladium catalyst, the catalyst is efficient in catalytic effect, low in price and capable of being repeatedly used, and meanwhile high-valued utilization of marine product waste is promoted.

The invention relates to research on a process method for processing sea cucumber and radix polygonati officinalis healthcare wine through sea cucumbers and radix polygonati officinalis. The specific preparation method comprises the steps that viscera of the fresh and alive sea cucumbers is removed, the sea cucumbers are heated up with boiling water after being thoroughly washed, compound protease and flavourzyme are added for enzymolysis after water is added for smashing, centrifugalization is carried out after enzyme deactivation, enzymolysis supernatant is taken for freeze drying, and sea cucumber enzymolysis powder is obtained. After radix polygonati officinalis is subjected to superfine grinding, the radix polygonati officinalis powder, the sea cucumber enzymolysis powder and grain wine are mixed in proportion, the mixture is placed in a container, cover sealing is carried out, after natural soaking is carried out for a period of time, centrifugalization is carried out to remove solid suspended solids, and finally the finished sea cucumber and radix polygonati officinalis wine is obtained. According to the technical method, various active ingredients of the sea cucumber and radix polygonati officinalis can be kept effectively, high-value utilization of existing sea cucumber culture resources is promoted, market needs are met, operation is easy, technical content is high, and the product has high economic value.

The invention discloses preparation and application of a marine biological waste oyster shell-supported palladium catalyst. Oyster shells are used as calcium, cetyltrimethylammonium bromide is used asa porogen to synthesize hydroxyapatite by a hydrothermal method, and a heterogeneous palladium catalyst which can be recycled is prepared. The preparation of the marine biological waste oyster shell-supported palladium catalyst has the following advantages that (1) the oyster shells and phosphate are used as raw materials, the oyster shells and the phosphate are low in cost, easy to obtain, widely available and environmentally friendly, and the process is simple; (2) a Heck reaction of aryl halides such as iodobenzene and bromobenzene with olefin can be can efficiently (90% or above) catalyzed, after repeated six-time use of the catalyst, the activity is almost not reduced, and the product yield is still 90% or above; (3) excellent catalytic ability is achieved on Sonogashira coupling; and (4) compared with other carrier materials, hydroxyapatite carrier materials have the significant advantages that good chemical stability, thermal stability, low solubility and adjustable surface acid and base are achieved, the structure is easy to modify, and ion exchangeability is high.

The invention discloses a method for preparing magnesium oxide aerogel with bischofite as a material. The preparation method comprises the following steps: (1) bischofite, distilled water, alcohol solvent and water-soluble polymer are mixed and stirred for 5 to 120 minutes, so that a transparent solution is obtained, and an epoxy compound is then added into the solution and stirred for 5 to 60 minutes, so that a sol is obtained; (2) the prepared sol is sealed for gelation, the temperature of gelation is 20 DEG C to 95 DEG C, the time of gelation is 2 to 20 hours, and thereby a wet magnesium oxide gel is obtained; (3) the obtained wet magnesium oxide gel is immersed and washed with distilled water for not less than three times, and the usage of the distilled water is not less than the volume of the wet magnesium oxide gel; (4) after immersion and washing in step 3, the magnesium oxide gel is dried, and thereby the magnesium oxide aerogel is prepared. The method effectively solves the problem that magnesium alkoxide is extremely easy to hydrolytically polycondense and the process is not easy to control in the conventional preparation of wet magnesium oxide gel by utilizing the magnesium alkoxide and the problem that the magnesium alkoxide is highly toxic, expensive and extremely sensitive to the temperature and humidity of the environment, and is not easy to synthesize and store.