Abstract:
Antibiotic LL-D42067.beta. derived by aerobic fermentation of the microorganism Actinomadura madurae subspecies simaoensis NRRL 15734, useful as an antibacterial and antiparasitic agent.
Abstract:
This disclosure describes novel antibacterial agents designated LL-E10985.alpha., LL-E19085.beta., LL-E19085.gamma., LL-E19085.zeta. and LL-E19085.eta., having the structure: ##STR1## their production by aerobic fermentation of a new subspecies of Micromonospora citrea NRRL 18351 and mutants thereof, and the isolation and purification thereof.
Abstract:
This disclosure describes novel antibacterial agents designated LL-E10985.alpha., LL-E19085.beta., LL-E19085.gamma., LL-E19085.gamma. and LL-E19085.zeta., having the structure: ##STR1## their production by aerobic fermentation of a new subspecies of Micromonospora citrea NRRL 18351 and mutants thereof, and the isolation and purification thereof.
Abstract:
Antibiotic LL-D42067.beta. derived by aerobic fermentation of the microorganism Actinomadura madurae subspecies simaoensis NRRL 15734, useful as an antibacterial and antiparasitic agent.
Abstract:
This invention relates to a novel process for the production of antibiotic X-14868A using the novel microorganism Antinomadura yumaense sp. nov.
Abstract:
The invention is a process for the production by fermentation of the antibacterial and antiparasitic agents designated LL-D42067.alpha., to methods for its recovery and concentration from crude solutions and to processes for its purification. The invention includes within its scope the biologically pure culture of the antibiotic.
Abstract:
This disclosure describes a new antibacterial agent designated LL-C23201.delta., produced in a microbiological fermentation under controlled conditions using a new strain of Streptomyces olivaceo-griseus, sp. nov. and mutants thereof. This new antibacterial agent is active against a variety of microorganisms and thus is useful in inhibiting the growth of such bacteria wherever they may be found.
Abstract:
This disclosure describes four new antibacterial agents designated LL-C08078.alpha..sub.1, LL-C08078.alpha..sub.2, LL-C08078.alpha..sub.3 and LL-C08078.beta. produced in a microbiological fermentation under controlled conditions using a new strain of a new species of the genus Streptomyces called Streptomyces majorciensis Labeda, sp. nov., and mutants thereof. These new antibacterial agents are active against a variety of microorganisms and thus are useful in inhibiting the growth of such bacteria wherever they may be found. In addition, these agents are active as growth promotants in warm-blooded animals.
Abstract:
Antibiotic LL-D42067.alpha. derived by aerobic fermentation of the microorganism Actinomadura madurae subspecies simaoensis NRRL 15734, useful as an antibacterial and antiparasitic agent.