CHEMICAL STUDIES ON ANTIBIOTIC SUBSTANCES. I. PURIFICATION OF AUREOTHRICIN AND ITS MOLECULAR FORMULA

Abstract

From the fermented broth of a new species of streptomyces Umezawa, Maeda and Kosaka (1) obtained a golden yellow crystalline antibiotic and called it aureothricin. This antibiotic inhibits the growth of gram-positive and negative bacteria and is clearly different from yellow antibiotics of streptomyces such as aureomycin (2) and xanthomycin (3) . In the present paper its purification and chemical characters are described.