NEW ANTIBIOTIC SUBSTANCE PF1052 AND ITS PRODUCTION

摘要

PURPOSE:To obtain a new antibiotic substance PF1052 by carrying out a method for culturing a mold. CONSTITUTION:The objective substance is a new substance obtained by culturing a PF1052 strain belonging to the genus Phoma in a culture medium containing nutriments utilizable by normal microorganisms and then isolating the aforementioned substance from the resultant culture according to a solvent extraction, silica gel column chromatographic method, etc. The resultant substance PF1052 is expressed by the molecular formula C26H39NO4. The aforementioned substance PF1052 has powerful antimicrobial action on Gram-positive bacteria and anaerobes.