ISOLATION AND CHARACTERIZATION OF NRCS-15, A NEW IRON-CONTAINING ANTIBIOTIC

Abstract

A new iron-containing antibiotic named NRCS-15 was isolated from a Streptomyces strain. The antibiotic inhibits the growth of Gram-positive bacteria. The antibiotic is similar to the sideromycin group of antibiotics in that it contains iron but it differs in some other characters. Antibiotic NRCS-15 liberated 8 amino and 3 organic acids on hydrolysis. The morphological and physiological characteristics of the producing organism as well as the isolation and properties of the antibiotic are described.