Microbial Conversion
نویسندگان
چکیده
منابع مشابه
Microbial conversion of ansamitocin.
Bacteria, actinomycetes, yeasts, and fungi were screened for their ability to modify the structure of ansamitocins, a group of antitumor ansamycin antibiotics. Many strains, mostly actinomycetes, were found to convert ansamitocin P-3 to one or more products. These products, compounds A, B, C, and D, were prepared using Bacillus megaterium IFO 12108, Streptomyces coelicolor IFO 3807, Streptomyce...
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28-hydroxymilbemycins, 1 3/?,30-dihydroxymilbemycins, and others.4~8) On the other hand, Ramos Tomboet al. have reported 13/Miydroxylation and 14, 1 5-epoxidation of milbemycins by Streptomyces violascens ATCC31560.9) During our screening of microbial conversion of milbemycin A4 (la), we observed that an actinomycete, strain SANK65087, newly isolated from soil, converted milbemycin A4 (la) to a...
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Streptomyces galilaeus OBB-111 and its blocked mutant were found to convert aclacinomycin B and related anthracycline glycosides of the B type to the corresponding A-type glycosides. Only the cell fraction of cultures of S. galilaeus OBB-111 was capable of catalyzing the reaction. The activity was associated with growth but disappeared before the start of rapid production of aclacinomycins A an...
متن کاملMicrobial conversion of corn stalks to riches.
If all of the corn stover (mature cured stalks with the ears removed) in the United States could be converted annually to an utilizable form of energy such as ethanol, the United States would not have to import as much foreign oil (2; David Johnston, personal communication). This would have a profound effect on energy supply and utilization, on cleaner air and environment, and on worldwide econ...
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ژورنال
عنوان ژورنال: Science
سال: 2013
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.339.6116.121-a