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Novel antibiotic substance rk-1339b and its preparation

阅读:70发布:2022-07-31

专利汇可以提供Novel antibiotic substance rk-1339b and its preparation专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain a novel antibiotic substance RK-1339B, by culturing Streptomyces sp. RK-1339.
CONSTITUTION: A novel Streptomyces sp. RK-1339 (FERM-P No.6934) has been separated from soil. The objective novel antibiotic substance RK-1339B can be prepared by culturing the microbial strain. The antibiotic substance exhibits the following chemical and biological properties. Elementary analysis, C 64.58%, H 9.37%, N 1.48%; molecular weight, 925; melting point, 147W155°C; solubility, soluble in methanol, ethyl acetate, chloroform and benzene, hardly soluble in water and hexane; color reactions, positive to potassium permanganate, iodine, anisaldehyde-sulfuric acid reactions, and negative to ninhydrin reaction; biological activity, exhibits cytopathogenic action to Yoshida sarcoma cell, and growth inhibiting action to various fungi, plant pathogens, algae and bacteria.
COPYRIGHT: (C)1985,JPO&Japio,下面是Novel antibiotic substance rk-1339b and its preparation专利的具体信息内容。

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