摘要:
Deacetoxycephalosporin C can be produced with advantage by fermentation of a microorganism which belongs to the genus Streptomyces, Cephalosporium, Emericellopsis, Paecilomyces, Anixiopsis, Arachnomyces or Spriroidium and is capable of producing deacetoxycephalosporin C. Deacetoxycephalosporin C is a useful antibiotic as such or can be used as a starting material for the production of other various cephalosporin antibiotics.
摘要翻译:脱乙酰氧基头孢菌素C可以通过发酵属于链霉菌属,头孢菌属,叶绿体属,拟青霉属(Aneciopsis),蛛形体纲(Arachnomyces or Spriroidium)等微生物而产生,并且能够产生脱乙酰氧基头孢菌素C.脱乙酰氧基头孢菌素C是有用的抗生素或可以使用 作为生产其他各种头孢菌素类抗生素的起始原料。
摘要:
The present invention relates to a method for concentrating a dilute aqueous solution of a .beta.-lactam antibiotic which is readily susceptible to heat, by subjecting a dilute aqueous solution of a .beta.-lactam antibiotic, said solution containing 2 to 20% (v/v) of a lower alcohol, to concentration by means of a permeable membrane made of poly(ether/amide) or polybenzimidazolone.
摘要:
The interseparating of desacetyl-cephalosporin C, desacetoxy-cephalosporin C and cephalosporin C can be accomplished by adsorbing these available cephalosporins on activated carbon and effecting a fractional elution thereof with water containing 0 to 20 percent (V/V) of an organic solvent or solvents.
摘要:
Monomeric human .gamma.-interferon is efficiently produced by subjecting crude human .gamma.-interferon to gel filtration in the presence of a reducing sulfur compound and a protein-denaturing agent.
摘要:
Inosine and/or guanosine can be separated from fermentation broth containing microbial cells and high-molecular-weight substances by heat-treating said broth at 90.degree. to 110.degree. C., followed by subjecting to ultrafiltration. The present process is advantageously carried out in the industrial use of ultrafiltration.
摘要:
A cleaning tool for an optical connector includes a cylindrical cleaner and a holding member for holding a proximal portion of the cleaner. The cleaner has a main body with a ferrule insertion hole extending from a ferrule insertion port at its distal end face toward the proximal end of the cleaner. The ferrule insertion hole has an inner diameter substantially the same as an outer diameter of a ferrule. The ferrule insertion hole is surrounded by a rough surface so as to clean an outer surface of the ferrule which is to be inserted.
摘要:
A novel antibiotic P-2563 is produced by cultivating a microorganism of the genus Pseudomonas.The antibiotic is useful as a drug for the treatment of pustule, and also useful as a disinfectant.
摘要:
This invention provides a hydraulic composition which contains a cementitious material in powder form, .beta.-1,3-glucan, and a superplasticizer. The composition makes it possible to prepare concrete with high resistance to segregation, high fluidity, and excellent filling ability. Because of this, vibration of the concrete is not necessary during casting; it can simply be poured.