Production of actinomycin-D by a new isolate,Streptomyces sindenensis
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An actinomycete strain, designated as C-5, was isolated from the soil sample collected from steel plant effluent sediment. The strain produced actinomycin-D in substantial quantities (80 mg/L). The strain C-5 was taxonomically characterised on the basis of morphological and phenotypic characteristics, genotypic data and phylogenetic analysis. A nearly complete 16S rRNA sequence of the isolate was determined and found to have 100% identity withStreptomyces sindenensis. Streptomyces sindenensis is not reported earlier to produce actinomycin-D. Anticancer activities were determined against various human cancer cell lines. Production of actinomycin-D was scaled up in bench scale fermentors and optimised to a titre of 120 mg/L.
Key wordsactinomycin-D Streptomyces sindenensis anticancer antibiotic fermentation
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