NOVEL ANTIBIOTICS OF THE STREPTOGRAMIN TYPE,A MICROBIOLOGICAL PROCESS FOR THEIR PREPARATION AND THEIR USE AS MEDICAMENTS AND FEED ADDITIVES

摘要

Fermentation of the microorganism Streptomyces species Y-8240155 produces streptogramin antibiotics which are called grividomycin I, II and III, besides the known neoviridogrisein as main product. Grividomycin I, II and III are used as medicaments to control bacteria, mycoplasmas and actinomycetes and as growth-promoting supplements in animal feeds.