Studies on antibiotics BN-227 and BN-227-F, new antibiotics. I. Taxonomy, isolation and characterization.

Abstract
The 2 antibiotics, BN-227 and BN-227-F, were isolated from the fermentation broth of Pseudomonas sp. BN-227. BN-227 has a molecular formula C7H9NO3 and melts at 115.degree. C. BN-227-F has a molecular formula C21H24N3O9Fe and melts at 156.degree. C. BN-227-F is a chelate compound consisting of 3 similar ligands (antibiotic BN-227) and ferric ion. The 2 antibiotics have antimicrobial activity against gram-positive and gram-negative bacteria.