Gruppo Lepetit S.p.a.

Maria Rosa Bardone

Carolina Coronelli

Francesco Parenti

Hermes Pagani

Grazia Beretta

This invention relates to a novel antibiotic mixture and to the process for its production. This antibiotic mixture comprises a family of new antibiotic substances which may be separated and isolated as individual components. These antibiotic substances are referred to herein as antibiotic 8327 factor A, antibiotic 8327 factor B and antibiotic 8327 factor C. Antibiotic 8327 factor A is in turn a mixture of three fractions which will be referred to herein as teichomycin A.sub.1, teichomycin A.sub.2 and teichomycin A.sub.3. The novel antibiotic mixture is obtained by cultivation of strain Actinoplanes teichomyceticus nov. sp. ATCC 31121.

Antibiotic substances

Antibiotic activities produced by a variety of Streptosporangium vulgare named Streptosporangium vulgare var. antibioticum var. nov. ATCC 21906. The antibiotic complex contains at least the active fractions named A, B and C.

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Milan, Italy

Maria Rosa Bardone