Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

980results about How to "No dependency" patented technology

Method for producing DHA by Schizochytrium in high-density culture through fermentation

The invention discloses a method for producing DHA by Schizochytrium in high-density culture through fermentation, relates to a preparation method of DHA, and provides a method for producing DHA by using a microbial fermentation method, which replaces fish oil to extract omega-3 polyunsaturated fatty acids. The method comprises the following steps of: inoculating strains in a shake flask according to the ratio of strains to a culture medium of 1: (5-10) for culturing until the dry weight of cells in fermentation liquor is 10-12g / L; inoculating the strains in the shake flask in a 1000L seed fermenter according to the inoculum size of 5-10%, culturing until the dry weight of the cells in the fermentation liquor is 20-24g / L; inoculating the strains in the 1000L seed fermenter in a 8000L seed fermenter according to the inoculum size of 5-10%, and culturing for 120-130 hours, wherein the dry weight of the cells in the fermentation liquor is 120-150g / L, and the DHA content is up to 26-30g / L. In the invention, through optimizing the culture medium and optimizing the culture conditions and by adopting a conventional fermentation method, the production rate of the DHA is at least 3 times more than the reported production rate. The production costs of the strains (the Schizochytrium), the culture medium and the culture condition are low, the yield is high, and the method is applicable to the industrial production of the DHA.
Owner:XIAMEN HUISON BIOTECH

External Chinese medicinal composition with functions of blackening hair and dressing hair and preparation method thereof

The invention discloses a new external Chinese medicinal composition with functions of blackening hair and dressing hair and a preparation method thereof. The Chinese medicinal composition mainly comprises the following raw material medicaments: tuber fleeceflower root, ginseng, Chinese angelica, oriental arborvitae carbon, Szechuan lovage rhizome, incised notopterygium rhizome, fineleaf schizonepeta herb, cassia twig, Manchurian wildginger, mint, kudzuvine root, chrysanthemum, baical skullcap root, lightyellow sophora root, weeping forsythia, red paeony root, white paeony root, divaricate saposhnikovia root, storax, dahurian angelica root, mugwort leaf, Chinese honeylocust fruit, prepared rehmannia rhizome, clove, pseudoginseng root, root of red-rooted salvia, black sesame and yerbadetajo herb. The Chinese medicinal composition of the invention can be prepared into any external preparation by a conventional Chinese medicinal preparation method. The Chinese medicinal composition can remarkably improve qi and blood circulation, expel wind and cold pathogens, dredge qi and blood, activate blood circulation to dissipate blood stasis, expel head wind, blacken hair, dress hair and improve the symptoms such as white hair, gray hair, brown hair, easily broken hair, hair loss and the like, and has extract clinical effect, remarkable curative effect and quick response. The Chinese medicinal composition is combined by adopting the medicaments prescribed by the national formulary and an external therapy method is adopted, so the Chinese medicinal composition has no stimulation on the skin or dependency and has the advantages of low expense, no toxic or side effect and the like.
Owner:TAIYI HEPU BEIJING RES INST OF TCM

Gynura procumbens compound preparation as well as preparation method and application thereof

The invention belongs to the field of health beverages, and in particular relates to a gynura procumbens compound preparation as well as a preparation method and application thereof. The gynura procumbens compound preparation is characterized by being prepared from the following raw materials in percentage by weight: 75-85% of gynura procumbens, 5-10% of barley seedlings, 3-6% of common lophatherum herb, 2-5% of frostbitten mulberry leaves, 2-4% of kudzuvine root and 1-3% of poria cocos. The preparation method of the gynura procumbens compound preparation comprises the following steps: performing weighing, drying and small fire baking on gynura procumbens, then mixing with other weighed raw materials, and crushing. The preparation disclosed by the invention is safe, healthy and natural, has various effects of treating gout in multiple ways comprehensively, can play roles in adjusting uric acid metabolism, promoting excretion of uric acid, preventing uric acid crystallization, diminishing inflammation and relieving pain, and controlling arthralgia, swelling and inflammations in an attack stage of gout, also can be used for reducing the blood lipid and blood sugar and strengthening kidney metabolism, can be used for treating both symptoms and root causes and achieving the effects of preventing and treating gout, and has the characteristics of natural compounds and natural health maintenance; and the preparation method disclosed by the invention is simple and convenient, and can be used for keeping original components of the raw materials to the greatest extent.
Owner:袁丁

EPS control method for improving hand touch of steering wheel rapidly manipulated by driver

ActiveCN105763118ASolve the problem of fast steering wheel steering heavySolve the problem of steering heavyElectronic commutation motor controlAC motor controlDriver/operatorPermanent magnet synchronous motor
The invention discloses an EPS control method for improving hand touch of a steering wheel rapidly manipulated by a driver. The method comprises the following steps: in step S1, a three phase current of a permanent magnet synchronous motor is obtained, the collected three phase current is subjected to Clarke conversion and Park conversion, and therefore an actual field current instruction id and an actual torque current instruction iq are obtained; in step S2, a steering wheel torque signal, a vehicle speed signal and steering wheel angular velocity omega are obtained in real time; in step S3, electric motor stator voltage us is detected and is compared with a maximum voltage Umax which can be provided by an inverter; in step S4, when us is less than Umax, an EPS system enters a torque loop to execute id=0 control; in step S5, when us is greater than Umax, the EPS system enters a rotating speed loop to execute advance angle magnetic-field-weakening control. According to the EPS control method, overall consideration is given to specific requirements of EPS system time sharing for torque and rotating speed, and a problem that the steering wheel is difficult to manipulate in an EPS system due to heavy weight is well addressed.
Owner:HEFEI UNIV OF TECH

Anti-inflammation and allergy-relieving repair composition and preparation method and application thereof

The invention discloses an anti-inflammation and allergy-relieving repair composition and a preparation method and an application thereof. The composition consists of a cactus extract, an oat bran extract, a sophorae flavescentis extract, an ophiopogon japonicus root extract, a peony root extract, a scutellaria baicalensis root extract, butanediol, pentanediol and water. The preparation method comprises the following steps: 1) preparing a sophorae flavescentis extract solution; 2) carrying out super-high pressure homogenization of the cactus extract, the oat bran extract, the ophiopogon japonicus root extract, the peony root extract, the scutellaria baicalensis root extract, butanediol and pentanediol to obtain a plant extract mixed solution; and 3) carrying out mixing, super-high pressurehomogenization and filtration of the plant extract mixed solution and the sophorae flavescentis extract solution. The anti-inflammation and allergy-relieving repair composition has anti-inflammatory,anti-allergic and analgesic effects, can enhance skin barrier function, enhances the skin self-protection ability, effectively repairs inflammatory skin, especially skins suffered from hormone-dependent dermatitis and cannot produce drug resistance, dependence and side effects after being used for a long time.
Owner:中科厚朴(广州)科技发展有限公司 +1

Flatulence treating massage device used in department of pediatric surgery

Provided is a flatulence treating massage device used in the department of pediatric surgery. The problem is effectively solved that a traditional device is simple in massage mode, manual massage wastes time and effort and the massage strength is unstable. The flatulence treating massage device comprises a fixing seat, wherein the inner wall of the fixing seat is provided with a rack, a base is arranged on the fixing seat, an incomplete gear is arranged on the base, the bottom surface of the base is provided with a rotary rod, the lower end of the rotary rod is connected with a disc, the outside of the rotary rod is sleeved with a first gear, a sleeve and a connecting piece, a telescopic rod is hinged to the periphery of the connecting part, the lower end of the telescopic rod is providedwith a massage assembly, the outer wall of the rotary rod is provided with a guiding key, the inner wall of the first gear and the inner wall of the sleeve are provided with key grooves, the outside of the sleeve is fixedly sleeved with a cam, and the lower end of the base is provided with a guiding rod. The flatulence treating massage device is novel in structure and ingenious in concept, achieves diversification of flatulence patient massage modes by adopting the design, relieves the nursing pressure and avoids side effects caused by drug taking.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Method for producing DHA by Schizochytrium in high-density culture through fermentation

The invention discloses a method for producing DHA by Schizochytrium in high-density culture through fermentation, relates to a preparation method of DHA, and provides a method for producing DHA by using a microbial fermentation method, which replaces fish oil to extract omega-3 polyunsaturated fatty acids. The method comprises the following steps of: inoculating strains in a shake flask according to the ratio of strains to a culture medium of 1: (5-10) for culturing until the dry weight of cells in fermentation liquor is 10-12g / L; inoculating the strains in the shake flask in a 1000L seed fermenter according to the inoculum size of 5-10%, culturing until the dry weight of the cells in the fermentation liquor is 20-24g / L; inoculating the strains in the 1000L seed fermenter in a 8000L seed fermenter according to the inoculum size of 5-10%, and culturing for 120-130 hours, wherein the dry weight of the cells in the fermentation liquor is 120-150g / L, and the DHA content is up to 26-30g / L. In the invention, through optimizing the culture medium and optimizing the culture conditions and by adopting a conventional fermentation method, the production rate of the DHA is at least 3 times more than the reported production rate. The production costs of the strains (the Schizochytrium), the culture medium and the culture condition are low, the yield is high, and the method is applicable to the industrial production of the DHA.
Owner:XIAMEN HUISON BIOTECH

Plant genomes deoxyribonucleic acid (DNA) quick extraction device and testing method thereof

The invention relates to a plant genomes deoxyribonucleic acid (DNA) quick extraction device and a testing method thereof. The plant genomes DNA quick extraction device is composed of a plurality of injectors with sponges on the bottoms, extraction pillars, and a plurality of centrifugal tubes, wherein the upper end portion of each of the extraction pillars can be connected with an injection port of each of the injectors in a sealing mode, the lower end portion of each of the extraction pillars can be connected with each of the centrifugal tubes, a loading seal cover is connected on the end portion of each of the extraction pillars, the loading seal cover is loaded with a silica film and is embedded in the inner side of the lower end portion of each of the extraction pillars in a clamping mode, and a through hole is formed in the center of the loading seal cover. According to the plant genomes DNA quick extraction device and the testing method thereof, compared with the prior art, large instruments of a centrifugal machine and the like are replaced by an air pressure method, the silica film is used for combining nucleic acid molecules, the plant genomes DNA quick extraction device is simple and effective, an extraction process is simple and convenient without any dependency of valuable instruments, testing time is short, the testing method is high in sensitivity, and the problem of quick testing of transgenetic products on site is resolved.
Owner:SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products