Original Articles
On Antibiotic No. 45449 Produced by Streptomyces Pulveraceus Nov. Sp.
1961 Volume 14 Issue 2 Pages 63-67
Details
1961 Volume 14 Issue 2 Pages 63-67
A new antibiotic 45449 A belonging to the neomycin-group and a new antibiotic 45449 B belonging to the streptomycin-group were isolated from the culture broth of Streptomyces pulveraceus nov. sp. A was different from neomycin, hydroxymycin and paromomycin in physiocochemical and biological properties, and in the natures of their decomposition products, while B was distinguished from streptomycin and hydroxystreptomycin by color reaction, and from dihydrostreptomycin and dihydrodexystreotomycin by mixed melting point determination and by difference in the X-ray diffraction pattern of their sulfates.
