Isolation and structure of isobutyrylleucanicidin produced by Streptomyces halstedii.
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چکیده
منابع مشابه
Isolation and structure of a new phenoxazine antibiotic, exfoliazone, produced by Streptomyces exfoliatus.
containing 30 liters of a medium with agitation rate of 400rpm and air flow of 30 liters/minute. The medium consisted of glucose 2.5%, soybean meal 1.5% dry yeast 0.2% and CaCO3 0.4%; pH was adjusted to 6.2. After fermentation for 90 hours, the culture broth was separated into filtrate and mycelium by centrifugation. The flow diagram for the isolation of I is shown in Fig. 1. The culture filtra...
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متن کاملSapurimycin, new antitumor antibiotic produced by Streptomyces. Structure determination.
The structure of a new anthra-gamma-pyrone antitumor antibiotic sapurimycin was determined by the spectral studies of its methyl ester. Sapurimycin has the same anthra-gamma-pyrone skeleton as pluramycin, but is distinctly different because of the absence of sugars on the D ring and possessing a carboxylmethyl group on C-5.
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1987
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.51.2841