METHOD FOR SELECTIVE TO INCREASE SHARE OF A FACTOR AND / OR B0 OR PA AND / OR PB IN AN ANTIBIOTIC A 40926-COMPLEX

摘要

The present invention is directed to a method for selectively enhancing the production of factors A, and/or B0 of antibiotic A 40926 either to isolate these single components in better yields or to enrich the complex in one or both the above components, which comprises adding an appropriate precursor of the desired antibiotic factor to an A 40926 producing culture during fermentation.