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96results about How to "Reduce sterilization costs" patented technology

Phosphate or metaphosphate based visible-ultraviolet up-conversion luminescence material doped with rare earth ions, and preparation method and application thereof

The present invention discloses a phosphate or metaphosphate based visible-ultraviolet up-conversion luminescence material doped with rare earth ions, wherein phosphate or metaphosphate serves as a substrate, and the substrate material is doped with Pr<3+>; a molar ratio of phosphate or metaphosphate to Pr<3+> is (0.9-3):(0.01-0.1). The present invention further provides a preparation process of the material, comprising: (a) according to the chemical formula, weighing oxide materials of corresponding elements and ammonium dihydrogen phosphate according to a stoichiometric ratio; and (b) grinding the weighed materials, burning the ground materials at the temperature of 850 to 950 DEG C for 2.5-4 h, cooling the materials to the room temperature, and grinding the materials to obtain a powder-like up-conversion luminescence material. It is experimentally proved that when excited by a common light source (such as an incandescent lamp, an xenon lamp, a fluorescent lamp and an LED lamp), especially by sunlight, the material can emit ultraviolet light UVC that can effectively kill bacteria; and the material has a broad application prospect in the fields of food safety and environmental protection.
Owner:HEBEI UNIVERSITY

Non-sterile production method of soft package infusion terminal and bag making, filling and sealing device

The invention discloses a non-sterile production method of a soft package infusion terminal. The non-sterile production method comprises the steps that bag making is conducted; conveying is conducted before sterilization, and sealed empty bags are conveyed to a tray loading position; trays are loaded with the empty bags, the empty bags are placed on the sterilization trays, and the trays are stacked, so that a sterilization trolley is formed; sterilization is conducted, the sterilization trays are conveyed into sterilization equipment, and the whole trolley of empty bags are sterilized; the empty bags are unloaded from the trays, the sterilized empty bags are conveyed to a tray unloading position from the sterilization equipment, the sterilization trolley is disassembled into the independent sterilization trays through tray disassembly, and then bag unloading is conducted on each sterilization tray; conveying after sterilization is conducted, the empty bags unloaded from the sterilization trays are conveyed to a filling and sealing position; and filling and sealing are conducted, and the empty bags are filled and sealed. According to the method, the empty bags are sterilized after bag making and before filling, and sterilization does not need to be conducted any more after the soft bags are filled and sealed; the protection technique is excellent, and potential safety hazards generated during sterilization of the soft bags can be obviously reduced; meanwhile, the sterilization cost of the soft bags is reduced, and the sterilization efficiency of the soft bags is improved. The invention further discloses a non-sterile bag making, filling and sealing device of the soft package infusion terminal.
Owner:SHINVA MEDICAL INSTR CO LTD

Silicate-based rare-earth ion doped visible-ultraviolet up-conversion luminescent material, and preparation method and application thereof

The present invention discloses a silicate-based rare-earth ion doped visible-ultraviolet up-conversion luminescent material, wherein silicate is used as a substrate; the substrate material is doped with Pr<3+> and Li<+>; and the molar ratio of the silicate:Pr<3+>:Li<+> is equal to (0.77-0.99):(0.01-0.03):(0-2). The present invention also provides a preparation method of the material. The preparation method comprises: weighing nitrate, carbonate or oxide raw material that contains corresponding metal elements according to a ratio, wherein a silicon source in use is mesoporous silica; dissolving the weighed materials into distilled water, dispersing the materials evenly to obtain a mixture, regulating the pH value of the mixture to be neutral, stirring the mixture, carrying out a hydrothermal reaction on the mixture at 100-120 DEG C for 18-25 hours, cooling the mixture, filtering the mixture, washing the mixture, and drying the mixture to obtain a powdered reaction product, roasting the reaction product, cooling the roasted reaction product, and then grinding the product to obtain a powdered up-conversion luminescent material. According to an experiment, the material can emit UVC ultraviolet light that can effectively kill bacteria under excitation of a normal light source (such as an incandescent lamp, an xenon lamp, a fluorescent lamp, and an LED lamp), particularly sunlight; and the material has a wide application prospect in food safety and environmental protection.
Owner:HEBEI UNIVERSITY

Culture medium containing China-hemp stalk cores and process used for cultivation of black funguses

The invention belongs to the technical field of cultivation of black funguses, in particular to a culture medium containing China-hemp stalk cores and process used for cultivation of black funguses. The culture medium containing China-hemp stalk cores is prepared by crushing, weighing, stirring and sealed stack fermentation, bagging and sterilization of raw material. The raw material comprises the following ingredients including 50-82 parts by weight of China-hemp stalk cores, 0-32 parts by weight of mixed sawdust, 0-15 parts by weight of wheat bran, 0-15 parts by weight of rice bran, 1.5-3 parts by weight of bean flour, 0-1.5 parts by weight of lime, and 1 part of plaster. The culture medium containing China-hemp stalk cores is used for the process of cultivation of black funguses. The process comprises the following steps: inoculation, mycelium culture, after-ripening, formation of holes in cultivation bags, pregermination, fruiting management and harvesting and sun-drying. The resources of China-hemp stalk cores are applied to the technical field of cultivation of black funguses. Therefore, the resources of China-hemp stalk cores are reasonably utilized in order to avoid waste and environment pollution. The rich nutritional ingredients of China-hemp stalk cores are fully utilized. The natural and antibacterial feature and resistance to pests and diseases can effectively reduce the contamination rate during the cultivation process of black funguses so that yield and quality of black funguses are improved.
Owner:DAQING BRANCH OF HEILONGJIANG ACAD OF SCI +1

Seedling culture device and method for culturing mycorrhizal seedlings

The invention discloses a seedling culture device and method for culturing mycorrhizal seedlings. The device comprises an upper layer and a lower layer, a seedling culture chamber is formed in the upper layer, and an inoculant chamber is formed in the lower layer. An opening is formed in the upper portion of the seedling culture chamber, the bottom of the seedling culture chamber is in a screen shape, and a PVC screen or an iron wire screen with the hole diameter being 2 mm is arranged at the bottom of the seedling culture chamber. An opening is formed in the upper portion of the inoculant chamber, the bottom of the inoculant chamber is sealed, and an arbuscular mycorrhizal fungal inoculant is put in the inoculant chamber. During seedling culture, the surfaces of seeds are disinfected with10% sodium hypochlorite or other disinfectants, and the surfaces of the seeds are completely washed with sterile water. A culture matrix or soil is subjected to hot-pressing sterilization, and then sowing and seedling culturing are carried out. The mycorrhizal seedlings are cultured through the seedling culture device, the seedling culture matrix is not mixed with the arbuscular mycorrhizal fungal inoculant, the inoculant only makes contact with root systems of the seedlings, the density of the inoculant around the root systems is increased, the root systems fully make contact with the inoculant, the infection rate of mycorhiza is increased, infection of other infectious microbes is reduced, the use quantity of the seedling culture matrix can be reduced, and the cost can be reduced.
Owner:GUANGXI INST OF BOTANY THE CHINESE ACAD OF SCI

Dry-heat low-pressure continuous sterilization method

ActiveCN110522929AReduce the sterilization temperatureBreak through technical difficulties in the field of sterilizationLavatory sanitoryHeatPositive pressureEngineering
The invention belongs to the technical field of material sterilization. The invention relates to a dry-heat low-pressure continuous sterilization method. A sterilization inner cavity is heated througha heating device; the sterilization inner cavity is vacuumized through a vacuum device; the temperature of the sterilization inner cavity is adjusted and set during sterilization; materials are fed from one end of the tubular sterilization inner cavity, the material is conveyed from a feeding port to a discharging port through a conveying packing auger. In the sterilization process, the maintaining time of the vacuum degree and the pressure is controlled according to the number of microorganisms and the water content of materials, in the material conveying process, sterilization is conductedat the temperature lower than 100 DEG C under the positive-pressure and negative-pressure combined action, and the sterilization time is adjusted by adjusting the staying time of the materials in thesterilization inner cavity by adjusting the rotating speed of the conveying auger. A traditional dry heat sterilization mode is combined with preset positive and negative pressure, a physical sterilization process without any sterilizing agent works under a relatively low temperature condition, the medicine property of the materials is kept, and continuous sterilization is realized.
Owner:江西赫柏康华制药设备有限公司 +1

Pre-filled injector

The invention belongs to the technical field of injectors and discloses a pre-filled injector. The pre-filled injector comprises a tubing cap, a needle tubing, a handle, a push bar and a piston, the front end of the handle is provided with an inner thread, an outer thread is arranged in the needle tubing and close to the handle end, the handle and the needle tubing are assembled rotatably in a threaded manner, the front end of the needle tubing is provided with an outer thread, the tubing cap is provided with an inner thread, the tubing cap and the needle tubing are assembled rotatably in a threaded manner, the outer diameter of the push bar is matched in size with the inner diameter of the handle, and the outer diameter of the piston is matched in size with the inner diameter of the needle tubing; during assembly, the push bar penetrates the handle to be assembled with the piston, the assembled handle is in threaded connection with the needle tubing, and assembly is locked to form a retaining structure. A filling machine is characterized in that a certain amount of liquid medicine is injected to the injector from the top end of the needle tubing, the tubing cap and the needle tubing are rotatably assembled in a threaded manner and locked hermetically, and then the injector is sent to a sterilization bin for steam sterilization for 30 minutes at a high temperature of 121DEG C.
Owner:石家庄鑫富达医药包装有限公司

Sterilization method of edible fungus stick

The invention discloses a sterilization method of an edible fungus stick. The sterilization procedure contains 6 periods: temperature increasing I, temperature preservation I, temperature increasing II, intermittent temperature increasing I, temperature preservation II and intermittent temperature increasing II. The microwave power in temperature increasing I is 1.5-2.0 kW, and the sterilization time is 12-40 min; the microwave power in temperature increasing II is 1.0-1.5 kW, and the sterilization time is 0-60 min; the microwave power in intermittent temperature increasing I is 0.5-1.0 kW, the time in intermittent temperature increasing I comprises microwave work time and intermittent time, each time is 0-60 seconds, and total time is 0-200 min; the microwave power in intermittent temperature increasing II is 0.2-0.5 kW, the time in intermittent temperature increasing I comprises microwave work time and intermittent time, each microwave time is 0-20 seconds, intermittent time is 0-40 seconds, and total time is 0-500 min; the time in temperature preservation I is 0-60 min; the time in temperature preservation II is 0-60 min. The problems of traditional steam sterilization of being long in sterilization time, low in efficiency, high in cost and prone to environmental pollution are solved, and edible fungus stick steam sterilization is a safe, efficient, energy-saving and environment-friendly sterilization method.
Owner:HEZHOU UNIV

Pre-filled high-temperature sterilization syringe

The invention belongs to the technical field of syringes, in particular suitable for a drug injection mode for animals, and discloses a pre-filled high-temperature sterilization syringe. The pre-filled high-temperature sterilization syringe comprises a tube cap, a needle tube, a push rod and a piston, wherein the part, near the handle end of the needle tube, of the needle tube is provided with a stop ring, and the front end of the needle tube is provided with an external thread; the tube cap is provided with an internal thread, and the tube cap and the needle tube are assembled through rotation of the threads; the outer diameter of the push rod is matched with the inner diameter of a handle, and the outer diameter of the piston and the inner diameter of the needle tube are in an interference fit for sealing; the stop ring is welded to the part, near the handle end of the needle tube, of the needle tube, and during assembly, the push rod runs through the inner hole of the handle and assembled with the piston so as to form a locking structure after assembly. According to the pre-filled high-temperature sterilization syringe, a filling machine is used to inject a certain amount of drug liquid through the top of the needle tube of the syringe, the tube cap and the needle tube are assembled through rotation of the threads so that sealing and locking can be achieved, and the syringe is delivered into a sterilization chamber for steam sterilization at a high temperature of 121 DEG C for 30 minutes.
Owner:石家庄鑫富达医药包装有限公司

Movable ultraviolet LED sterilization and disinfection device

PendingCN111481694AFirmly connectedRealization of UV LED sterilization and disinfectionLavatory sanitoryDeodrantsUltravioletProcess engineering
The invention discloses a movable ultraviolet LED sterilization and disinfection device which comprises a box body. An ultraviolet LED sterilization mechanism, a fan, a storage battery pack and a controller are arranged in the box body; a movable platform is arranged at the bottom of the box body; a top probe is arranged at the top of the box body; and a bottom probe is arranged at the bottom of the box body. The device of the invention has the beneficial effects that the optical fiber coupled ultraviolet LED sterilization and disinfection device and the movable platform are combined into a whole, connection is convenient, and movable ultraviolet LED sterilization and disinfection are achieved; each system can be modularly produced and is easy to assemble and maintain, so that the manufacturing cost and the maintenance cost are greatly saved; an ultraviolet LED chip used for ultraviolet LED sterilization and disinfection is small in occupied space, and the device can be small, exquisite and light; besides an ultraviolet LED sterilization mode, the device can spray a disinfectant at the same time, and sterilization and disinfection are more thorough; the device can be applied to various occasions such as subway carriages, high-speed rail carriages, canteens and food and drug processing workshops, and is low in sterilization cost, efficient and rapid.
Owner:梁旭东

Method for biosynthesizing poly-beta-hydroxy butyric acid (PHB) by utilizing mixed methane-oxidizing bacteria

The invention relates to a PHB biosynthesizing method, in particular to a method for biosynthesizing poly-beta-hydroxy butyric acid (PHB) by utilizing mixed methane-oxidizing bacteria, and aims to solve the problem of high extraction cost of the PHB caused by low content of the PHB in current mixed bacteria and the problem that methane-oxidizing bacteria are quickly inactivated and cannot grow due to impurities in synthesis gas. The method comprises the following steps: 1, inoculating a bacterium solution of the mixed methane-oxidizing bacteria into an inorganic salt culture medium for culturing, and replacing mixed gas at a time interval of 12h during the period; 2, continuously culturing the bacterium solution, replacing air at a time interval of 24h during the period, putting half of a culture into the inorganic salt culture medium after culturing is finished, and continuously performing habituated culture for 10 times to obtain the mixed methane-oxidizing bacteria which are capable of growing in the mixed gas and are rich in the PHB; 3, inoculating the mixed methane-oxidizing bacteria which are obtained by screening into the inorganic salt culture medium, replacing the air with the mixed gas, performing culturing, ending culturing, and determining the content of the PHB. The method is used for synthesizing the PHB.
Owner:HARBIN UNIV OF COMMERCE
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