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51 results about "Inclusion method" patented technology

Separation method of oleic acid and linoleic acid in tea seed oil

The invention discloses a separation method of oleic acid and linoleic acid in tea seed oil, which includes the steps of: saponifying and acidifying the tea seed oil to obtain mixed fatty acid; pre-removing saturated fatty acid through a freezing crystallization method; and finally purifying the oleic acid and the linoleic acid through a urea inclusion method. In the method, the saturated fatty acid is separated in a certain degree by means of difference of melting point of the saturated fatty acid and unsaturated fatty acid for the first time, and then saturated and monounsaturated fatty acids are separated from polyunsaturated fatty acids through the urea inclusion to further prepare the oleic acid and the linoleic acid at high purity. Compared with the prior art, synchronous separation of the oleic acid and the linoleic acid in the tea seed oil is achieved. The method not only enriches the oleic acid in the tea seed oil but also separates the linoleic acid, and meanwhile increases the purities of the oleic acid and the linoleic acid. The method solves the problem that only is the oleic acid or the linoleic acid can be separated individually in the prior art and increases the additional value of products and raw material utilization rate.
Owner:GUIZHOU ZHOUYIQING BIOTECH +1

Self-propelled diameter-variable stress rosette pasting device used for geostress measuring

The invention discloses a self-propelled diameter-variable stress rosette pasting device used for geostress measuring and relates to the technical field of surveying of geological and mineral energy resources and geotechnical engineering. The self-propelled diameter-variable stress rosette pasting device comprises an orientor, an automatic climbing system, a colloid storing and extruding mechanism, a stress rosette fixing and pasting mechanism and a drive-by-wire operator controlling the automatic climbing system, and the orientor, the automatic climbing system, the colloid storing and extruding mechanism and the stress rosette fixing and pasting mechanism are connected sequentially. By the self-propelled diameter-variable stress rosette pasting device, functions of mounting-in-place and pasting of strain gauges in the process of geostress testing through a hole wall stress relieving method can be realized, the problems that a strain meter is complex in mounting process and low in success rate, testing depth is limited by length of a mounting guide rod and the like when a conventional hollow inclusion method is adopted for geostress measuring are solved effectively, application range of the hole wall stress relieving method for geostress measuring is expanded, and testing efficiency is improved. The self-propelled diameter-variable stress rosette pasting device has the advantages of low testing cost, convenience in carrying, simplicity and convenience in on-site operation and the like.
Owner:ANHUI UNIV OF SCI & TECH

Preparation and application of polyunsaturated fatty acid containing rich conjugated linoleic acid

The invention discloses preparation and application of polyunsaturated fatty acid containing rich conjugated linoleic acid and belongs to the technical field of polyunsaturated fatty acid extraction and steady-state treatment of grease. A preparation method comprises the following steps: (1) preparing mixed fatty acid by utilizing an enzymolysis method; (2) enriching the polyunsaturated fatty acid by utilizing a urea-inclusion method; (3) enriching the conjugated linoleic acid by combining a super-critical CO2 extraction method and an alkali isomerization method to finally obtain the polyunsaturated fatty acid containing the rich conjugated linoleic acid, wherein the content of the conjugated linoleic acid reaches 90 percent or more and a product contains other polyunsaturated fatty acid at the same time so that the structure of the product is more reasonable. By adopting a method for preparing microcapsules or emulsion, the polyunsaturated fatty acid containing the rich conjugated linoleic acid is subjected to stabilization treatment, so that the storage stability of the product is improved and the storage period can reach 24 months; meanwhile, the bioavailability of the polyunsaturated fatty acid is improved and the polyunsaturated fatty acid is more easily digested and absorbed by human bodies.
Owner:CHINA AGRI UNIV

Method for preparing famotidine sodium chloride injection by inclusion method and product prepared by using the same

The invention relates to a method for preparing a famotidine sodium chloride injection by an inclusion method and a product prepared by using the same. The method is characterized in that sulfobutyl ether-beta-cyclodextrin is used as an including agent of famotidine, and famotidine is firstly dissolved in glacial acetic acid and then added into a sulfobutyl ether-beta-cyclodextrin saturated solution to allow sulfobutyl ether-beta-cyclodextrin to include famotidine, and the sulfobutyl ether-beta-cyclodextrin including famotidine is dissolved in water; the weight part ratio of famotidine to sulfobutyl ether-beta-cyclodextrin is (1:5)-(1:10); the quantity of glacial acetic acid is 5-7 times of that of famotidine based on weight part; and excessive sterilization at 121 DEG C for 15 minutes isadopted. The method provided by the invention has the following advantages: related substances are controlled within 2%, which is far lower than 5% of domestic like-products, and the sterilization ischanged from a residual probability method to an excessive sterilization method, which ensures 100% sterilization, greatly improves product quality and enhances the safety of medicine in clinical applications.
Owner:HUIYINBI GRP JIANGXI EAST ASIA PHARMA CO LTD

A method for analyzing fatigue crack propagation of particle composite material

A method for analyzing fatigue crack propagation of particle composite material is provided. First, according to the initial geometric conditions, The equivalent inclusion method is used to obtain thestress field distribution of the structure without cracks and only with particles, and then the continuous dislocation is used to simulate any number of broken line cracks in the matrix. The singularintegral equations are established according to the stress equilibrium conditions on the line of the cracks. The stress intensity factors of each crack can be obtained by solving these singular integral equations. After one step of crack propagation, a new fracture line crack can be obtained by adding a crack branch to the original fracture line crack. The new crack tip position can be recorded,and then a new singular integral equation can be established to solve the problem, so that the stress intensity factor of the new crack can be obtained. In this way, the automatic crack propagation analysis of particulate composites can be realized after many cracks are manipulated. When the invention carries out the crack propagation analysis of the multi-particle and the multi-crack, the modeling is very fast, and the calculation speed is also fast.
Owner:WUYI UNIV

Preparation method of atmospheric free radical trapping membrane taking natural propolis as substrate

The invention discloses a preparation method of an atmospheric free radical trapping membrane taking natural propolis as a substrate. An ultrasonic cell smashing synchronous electrostatic spinning emulsification inclusion method is adopted, and comprises the three processes of natural propolis raw material fusing and homogenizing, electrostatic spinning emulsification inclusion and hollow microencapsulation molding in sequence. The obtained micro-encapsulated atmospheric free radical trapping membrane consists of 100 percent natural molecules, and has 100 percent trapping efficiency for gaseous free radicals; the average diameter of a micro-encapsulated fiber membrane is about 90nm; a product can be directly applied to the field of environmental ecological health such as trapping of the atmospheric free radical, monitoring and health prevention and control, or the natural propolis free radical trapping membrane can be directly applied in the field of air pollution protection such as trapping of the atmospheric free radicals in a mask, and can be applied to decorative materials such as wallpaper and glass to absorb imperceptible high-activity pollution molecules such as free radicals in the air. The atmospheric free radical trapping membrane has very high physical stability and chemical stability during use in an outdoor atmospheric pollution environment, and active molecules extracted from the natural propolis have reliable safety and have a good trapping function and removing function on air pollution active intermediates.
Owner:王国英 +1

Method for preparing famotidine sodium chloride injection by inclusion method and product prepared by using the same

The invention relates to a method for preparing a famotidine sodium chloride injection by an inclusion method and a product prepared by using the same. The method is characterized in that sulfobutyl ether-beta-cyclodextrin is used as an including agent of famotidine, and famotidine is firstly dissolved in glacial acetic acid and then added into a sulfobutyl ether-beta-cyclodextrin saturated solution to allow sulfobutyl ether-beta-cyclodextrin to include famotidine, and the sulfobutyl ether-beta-cyclodextrin including famotidine is dissolved in water; the weight part ratio of famotidine to sulfobutyl ether-beta-cyclodextrin is (1:5)-(1:10); the quantity of glacial acetic acid is 5-7 times of that of famotidine based on weight part; and excessive sterilization at 121 DEG C for 15 minutes is adopted. The method provided by the invention has the following advantages: related substances are controlled within 2%, which is far lower than 5% of domestic like-products, and the sterilization is changed from a residual probability method to an excessive sterilization method, which ensures 100% sterilization, greatly improves product quality and enhances the safety of medicine in clinical applications.
Owner:HUIYINBI GRP JIANGXI EAST ASIA PHARMA CO LTD
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