A PROCESS FOR PRODUCING IMMUNOSUPPRESSIVES AND A NOVEL MICROBIAL SPECIES TO BE EMPLOYED THEREIN

摘要

The invention relates to a process for producing a cyclosporin, especially cyclosporin A, by cultivating a strain of the novel Tolypocladium species in a nutrient medium containing carbon sources, nitrogen sources and mineral salts, and, if desired, isolating and purifying the resulting cyclosporin.