77results about How to "Suitable for industrial operation" patented technology

The invention discloses an extraction preparation method of lycopene, belonging to the technical field of food engineering. The method uses tomatoes or watermelon flesh as raw materials and adopts the technology of ultrasonic and extraction bags, which comprises the following steps: (1) the treatment of the raw materials and beating; (2) the separation of solid puree and liquid puree of fruit puree; (3) the ethanol water treatment of jam;(4) the extraction of the lycopene extractant of the jam and (5) the preparation of crystallization products of the lycopene. The extraction time of the invention is reduced to 10 to 60min from the10 to 20h of conventional time, and moreover the purity content of products is obviously improved from 10 to 20 percent in general to 70 to 80 percent. Therefore, the extraction preparation method is characterized by being efficient and fast, being convenient to be operated, low cost, high content of lycopene in the products, etc and is suitable for the promotion and the application in the industrialized and large scale production enterprises of natural lycopene with high purity.

The invention discloses a preparation method of a boron nitride fiber enhanced nitride ceramic-based composite material. The preparation method is characterized by comprising the following steps: mixing and ball-milling boron nitride short fibers, nitride powder and sintering aid powder; and performing hot pressed sintering to obtain the boron nitride fiber enhanced nitride ceramic-based composite material, wherein the length-diameter ratio of the boron nitride short fibers is (15-35): 1 and the adding amount of the boron nitride short fibers accounts for 3-20% by mass of all powder. The preparation method disclosed by the invention is simple in process, suitable for industrial operation and low in requirement on technical level of operators. The density of the composite material prepared by the preparation method reaches 1.9-2.95g / cm<3>, the tensile strength is greater than 50MPa, the bending strength is greater than 90MPa, the coefficient of linear expansion is less than 3.5*10<-6> (room temperature to 1200 DEG C), the dielectric constant (Ku waveband) is less than 5.5, and the dielectric loss (Ku waveband) is less than 8*10<-3>.

The invention aims at providing a method for reducing the content of volatile basic nitrogen in active peptides of euphausia superba. The method comprises the following steps: enzymatically hydrolyzing euphausia superba powder, and defluorinating to obtain an active peptide aqueous solution; adjusting the solid content of the active peptide aqueous solution of the euphausia superba by diluting or concentrating, and adding a swelling agent into the active peptide aqueous solution of the euphausia superba; heating the active peptide aqueous solution of the euphausia superba in vacuum for a period of time, cooling, and centrifuging to obtain supernatant; desalting the supernatant, and spray-drying to obtain an euphausia superba active peptide powder product with low volatile basic nitrogen content. The method is simple to perform, low in equipment investment, free of environmental pollution, high in efficiency and suitable for industrialized operation; the obtained euphausia superba active peptide powder with low volatile basic nitrogen content has the characteristics of no harmful material residues and high product safety.

The invention relates to a method for producing succinic acid by multistage continuous fermentation, which comprises the following steps: 1. preparing a seed culture medium, an initial fermentation culture medium, a carbon source supplementation tank culture solution and a culture medium supplementation tank culture solution; 2. sterilizing the cascade fermentation tank set, carbon source supplementation tank, culture medium supplementation tank, seed culture medium, initial fermentation culture medium, carbon source supplementation tank culture solution, culture medium supplementation tank culture solution and serum bottle; 3. taking the sterilized serum bottle, inoculating the sterilized seed culture medium, introducing CO2, inoculating the Actinobacillus succinogenes NJ113-producing oscillating table, and culturing to obtain a fermentation strain; and 4. carrying out multistage continuous fermentation. The production method is simple, has the advantage of high yield and purity of succinic acid, and thus, is suitable for industrialized production.

The invention belongs to a production process of a dendritic polymer, in particular to a production process of a dendritic polyamidoamine. The reaction temperature is precisely controlled by a low-temperature circulator. The initial reaction temperature is controlled at about -5±2°C, and after the addition of materials, the reaction temperature is controlled at 20±2°C to make the reaction more stable, and the appropriate excess monomer ratio can be adjusted to reduce the generation of by-products. , cooperate with ton-scale industrial synthesis reactor to realize industrial production scale; for the first time, continuous feeding and discharging rotary evaporation equipment is used to purify dendrimeric polyamidoamine to improve purification efficiency; The raw materials are recovered and purified to obtain reusable raw materials, which further reduces the cost of raw materials in industrial production.

The invention relates to an E-ring substituted silybin derivative and a preparation method and medical application thereof, in particular to synthesis of the E-ring substituted silybin derivative and medical application of the compound or the pharmaceutically acceptable salts of the compound in preparing the medicines for preventing physiological disorders or diseases caused by oxidative stress. The compound has the activity of protecting the hydrogen peroxide induced rat adrenal pheochromocytoma (PC12) cell from injury, namely having the anti-oxidative injury protection effect on the PC12 cell simulating the brain nerve cell, and also has the activity of suppressing xanthine oxidase, thus the compound can be expectedly developed to have the medical applications in preparing the medicines for preventing the neurodegenerative diseases such as oxidation of the brain nerve cell, senile dementia and the like, and the medicines for preventing the diseases caused by xanthine oxidase, such as gout.

The invention discloses a method for synthesizing acetyl-trans-resveratrol. The method comprises the following steps: (1) using 3,4',5-trimethoxystilbene as a raw material, and adopting a complex prepared from aluminum trichloride and triethylamine as a demethylation reagentl; under the action of inorganic salt, and carrying out demethylating reaction so as to obtain trans-resveratrol; (2) under the action of triethylamine, carrying out acetylated reaction for the obtained trans-resveratrol and acetic anhydride so as to obtain the acetyl-trans-resveratrol. The method has the advantages of being high in yield, good in product quality, environment-friendly and low in cost, is suitable for industrialization, is simple in preparation, is suitable for industrialized operation, can reduce impurities, improves the product quality, and has a wide application prospect.

The invention belongs to the field of medicine preparations, and in particular relates to application of cyclodextrin in preparing a radioactive iodine labeling hypericum monogynum medicine preparation. The cyclodextrin is applied to preparation of a radioactive iodine labeling hypericum monogynum medicine' preparation first a first time; the cyclodextrin is an oligo ring compound of glucose, is non-toxic to human bodies, hydroxypropyl-beta-cyclodextrin is approved by China as an auxiliary material for intravenous injection; meanwhile, compared with other solvents, the auxiliary material can greatly improve the water solubility of hypericin on premise that the iodine labeling efficiency is ensured, the radioactive iodine labeling hypericum monogynum medicine dissolved in the cyclodextrin is rapid in blood clearance, and the necrosis targeting of the medicine is not different from that of conventional preparations, so that the cyclodextrin can be used as a DMSO (Dimethyl Sulfoxide) substituent applied to the radioactive iodine labeling hypericum monogynum medicine preparation; the method for preparing the radioactive iodine labeling hypericum monogynum medicine preparation is simple in process, low in cost, high in preparation efficiency and applicable to industrial operation.

The invention discloses a preparation method of cyclohexane trione compounds. The method comprises the following steps: 1. by using enol ester as a raw material, adding nitrine quaternary ammonium salt at 25-60 DEG C, wherein the mass ratio of the nitrine quaternary ammonium salt to the enol ester is 0.01-0.5; 2. adding organic amine, wherein the mole ratio of the organic amine to the enol ester is 1.0-5.0; 3. stirring until the reaction is complete; and 4. adding an organic solvent and water into the reaction mixture, acidifying, stratifying, and desolventizing to obtain the cyclohexane trione compounds. The method lowers the production cost, is simple and safe to operate, has the advantages of quick reaction and simple after-treatment, and is suitable for industrialized operation. The method solves the technical problems of high catalyst toxicity, difficulty in solvent recovery, great environmental pollution and the like in the prior art.

The invention discloses a seedling-raising method using a poplar root sucker and a container hardwood cutting together, comprising the following steps of: (1) raising seedlings by the container hardwood cutting through directly adopting the hardwoods of annual nursery stocks to obtain container seedlings if the breeds of poplars to be propagated are annual nursery stocks; and excavating the root systems of the adult trees of the poplars and shearing the root systems to cuttings for the seedling raising of container root cutting to obtain the container seedlings if the breeds of the poplars tobe propagated are adult trees; (2) transplanting the obtained container seedlings in nursery land for nursery stock breeding; (3) after leaves fall in the same year or seedlings are lifted in spring of the ensuing year, carrying away qualified seedlings for forestation and translating the seedling-lifted nursery land into root sucker seedling-raising nursery land; and (4) carrying out the container hardwood cutting seedling raising by using the substandard seedlings bred by the root sucker. The seedling-raising method has the advantages of simple technical link, low seedling-raising cost, high cutting survival rate and no influences on the position effect and the maturation effect of scion grafting, can ensure the sustainable seedling-raising utilization of the large-scale high-efficiency vegetative propagation and fine vegetative propagation materials of the fine breeds of the poplars.