antibiotic sf - 1130 - x amp; amp; darr; 3 amp; amp; darr, methods for its production and medicine containing the antibiotic

摘要

A new antibiotic SF-1130-x3 substance is produced by cultivating a microorganism Streptomyces myxogenes SF-1130 (deposited under FERM-P. 676 and ATCC 31305) in a liquid culture medium under aerobic conditions, and this antibiotic may be isolated from the fermentation broth of said microorganism and is useful as an inhibitor to alpha -glucosidase and saccharase. Besides, this antibiotic, when orally given, is useful as a drug for suppressing an elevation in the level of blood sugar in living animals which have taken starch and/or sugars.