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126 results about "Streptomycin Sulfate" patented technology

The sulfate salt form of streptomycin, an aminoglycoside antibiotic derived from Streptomyces griseus with antibacterial property. Streptomycin sulfate binds to the S12 protein of the bacterial 30S ribosomal subunit, thereby inhibiting peptide elongation and protein synthesis, consequently leading to bacterial cell death.

Anti-freezing agent and anti-freezing diluent for freezing and storing livestock sperm and preparation method thereof

The invention discloses an anti-freezing agent and an anti-freezing diluent for freezing and storing livestock sperm and a preparation method thereof. The anti-freezing agent for freezing and storing bovine and porcine sperm is algin, the amount of the algin added into the conventional diluent is 60 to 110 milligrams, wherein the conventional diluent is prepared from 1.1 grams of glucose, 1.48 grams of citric acid, 2.42 grams of Tris, 10 percent of fresh egg yolk, 0.06 gram of penicillin sodium and 0.1 gram of streptomycin sulfate, which are dissolved in 100 millimeters of distilled water. The adding amount of the algin for cattle is 100 to 110 milligrams, and the adding amount of the algin for pigs is 60 to 80 milligrams. The preparation method comprises the following steps of: adding 100 to 110 milligrams of algin and 4 percent glycerin (for cattle) or 60 to 80 milligrams of algin and 1 percent glycerin (for pigs) into the conventional diluent to prepare the anti-freezing diluent; and adjusting the pH value of the solution to be between 6.5 and 7.5, filtering and sterilizing the anti-freezing diluent under the osmotic pressure of 286mOsm/L, and putting the anti-freezing diluent into a 4 DEG C refrigerator for later use. The algin is used for freezing and storage of the bovine and porcine sperm for the first time, and after unfreezing, the sperm motility rate, the acrosome completeness rate and the plasma membrane completeness rate are 65 percent, 69 percent and 72 percent (for cattle) respectively and 58 percent, 62 percent and 63 percent (for pigs) respectively.
Owner:NORTHWEST A & F UNIV

A cell cryopreservation liquid for human umbilical cord mesenchymal stem cells

A cell cryopreservation liquid for human umbilical cord mesenchymal stem cells is disclosed. Components of the liquid include 41.8-51.8% of a serum-free culture solution, 40-50% of a serum substitute,8% of dimethyl sulfoxide, 0.1% of streptomycin sulfate having a concentration of 200 [mu]g / mL and 0.1% of an additive. A cryopreservation method utilizing the cell cryopreservation liquid for the human umbilical cord mesenchymal stem cells is further provided. The method includes centrifuging suspension cells after subculture, then putting the cells into a centrifuge tube, adding the cryopreservation liquid into the centrifuge tube containing the cells, transferring the mixture to a cryopreservation tube, putting the cryopreservation tube requiring cryopreservation into a programmed cooling box containing isopropanol, allowing the cryopreservation tube to stay overnight at -80 DEG C and then transferring the cryopreservation tube to a liquid nitrogen tank the next day. A problem that fetal calf serum in conventional cryopreservation liquids brings about animal-sourced components and pathogen contamination can be solved. The added streptomycin sulfate can reduce the content of antibiotics, reducing human umbilical cord mesenchymal stem cell poisoning caused by antibiotics, reducing cell death and maintaining characteristics of the stem cells.
Owner:QINGDAO RESTORE BIOTECHNOLOGY CO LTD

Anti-oxidative cattle frozen semen diluent and preparation method thereof

The invention discloses anti-oxidative cattle frozen semen diluent. The anti-oxidative cattle frozen semen diluent is composed of the following raw materials by mass: 20-26 parts of trihydroxy methyl-aminomethane, 10-15 parts of trisodium citrate, 7-15 parts of fructose, 700-800 parts of distilled water, 230-260 parts of fresh yolk, 0.125-0.375 part of sodium selenite, 2-32 parts of Vitamin E, 90-95 parts of glycerol, 1-2 parts of penicillin potassium for injection (specification of 1.6 million units/g) and 1-2 parts of streptomycin sulfate for injection (specification of 1.0 million units/g). The preparation method of the anti-oxidative cattle frozen semen diluent comprises the steps of preparing a basic buffer solution, a basic diluent and a semen diluent; then transferring the prepared semen diluent to a condition of 4 DEG C, and balancing for 5-20 min to obtain the anti-oxidative cattle frozen semen diluent. Compared with a conventional anti-oxidative cattle frozen semen diluent, the anti-oxidative cattle frozen semen diluent provided by the invention increases semen motility rate by 24.56%, increases 4 h semen motility rate by 12.39%, increases semen perforatorium integrity rate by 38.72%, increases GSH-PX activity by 260%, and reduces semen aberration rate by 5.49%.
Owner:山西省生态畜牧产业管理站

Preparation method of anti-disease medicine against potato bacterial wilt

InactiveCN103598245AEffective against bacterial wiltRaise the ratioBiocideFungicidesDiseaseChlorogenic acid
The invention discloses a preparation method of an anti-disease medicine against potato bacterial wilt, which comprises the following steps: (A) material preparation: preparing streptomycin sulfate, 25% cuaminosulfate aqueous solution, 2% formalin, glycyrrhizic acid, chlorogenic acid, polyoxin, radix ampelopsis and dried orange peel; (B) alcohol digestion of the extraction liquid of radix ampelopsis and dried orange peel: crushing the radix ampelopsis and dried orange peel, washing and airing; putting into a closed container, adding 70% ethanol solution by mass, and soaking for 12 hours; putting into a percolator, wherein the percolator is of a bucket structure with a cone at the bottom, the cone is downward connected with equipment which can be opened/closed to drop water, and the percolator is used for extracting the components of the medicinal materials; uniformly putting the medicinal materials into the bucket, and adding the soaking liquid water or wine slowly and dropwise; collecting the percolation liquid; and heating to recover ethanol to obtain the extraction liquid; and (C) compounding the streptomycin sulfate, 25% cuaminosulfate aqueous solution, 2% formalin, glycyrrhizic acid, chlorogenic acid and polyoxin with the extraction liquid obtained by the step (B), stirring uniformly and performing ultraviolet sterilization to obtain the anti-disease medicine against potato bacterial wilt. The preparation method disclosed by the invention is simple, and the prepared product is simple in formula and convenient to use and realizes a good effect in treating the potato bacterial wilt.
Owner:QINGDAO MAOFENG ORGANIC VEGETABLE

Preparation method of diluent for storing sheep semen at normal temperature

The invention relates to a preparation method of a diluent for storing sheep semen at a normal temperature. The preparation method comprises the following steps: 1, dissolving 30.2 g to 31.2 g of Tris, 15.9 g to 16.9 g of citric acid, 19.5 g to 20.5 g of fructose, 0.3 g to 0.4 g of penicillin sodium and 0.6 g to 0.7 g of streptomycin sulfate into 1000mL of sterilized ultrapure water to obtain a basic diluent, 2, when 95 mL of the basic diluent is taken, adding 5 mL of yolk into 95 mL of the basic diluent so that a first diluent is obtained, when 85mL of the basic diluent is taken, adding 15mLof yolk into the 85mL of the basic diluent to obtain a second diluent, when 80 mL of the basic diluent is taken, adding 20 mL of yolk into 80 mL of the basic diluent so that a third diluent is obtained, putting the first diluent, the second diluent and the third diluent into a refrigerator to be fully dissolved, then centrifuging for 20 minutes at the speed of 10,000 r/min and the temperature of 4DEG C, and taking out a supernatant after centrifuging, so as to obtain a yolk diluent with the concentration of 5%, a yolk diluent with the concentration of 15% and a yolk diluent with the concentration of 20%. Through the diluent provided by the invention, the semen preservation effect is improved.
Owner:YANGZHOU UNIV
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