screening of3000 soil samples collected from cities of four different provinces of iran for starch-hydrolysing bacteria revealed that the nature is enriched with streptomyces species capable of producing amylolytic enzymes. among the bacterial isolates, one of the high starch-degrading strains was selected for further microbiological identification and also amylolytic enzyme(s) characterization...

Screening of3000 soil samples collected from cities of four different provinces of Iran for starch-hydrolysing bacteria revealed that the nature is enriched with Streptomyces species capable of producing amylolytic enzymes. Among the bacterial isolates, one of the high starch-degrading strains was selected for further microbiological identification and also amylolytic enzyme(s) characteriza...

Thirteen species of Streptomycetes, Arthrobacters and Mycobacterium were studied for the determination of a potential cholesterol oxidase producer. Only Streptomyces fradiae and Streptomyces rishiriences were found to be capable of producing this enzyme. Streptomyces fradiae was selected for the production of cholesterol oxidase and cultured in different media to find optimum media and con...

Extracellular culture concentrates were prepared from Streptomyces viridosporus T7A, Streptomyces badius 252, and Streptomyces setonii 75Vi2 shake flask cultures. Ten-day-heat-treated (70 degrees C) starch-polyethylene degradable plastic films were incubated with shaking with active or inactive enzyme for 3 weeks (37 degrees C). Active enzyme illustrated changes in the films' Fourier transform ...

Tetracyclines are broad spectrum antibiotic, belong to the family of polyketide antibiotic ,produced by Streptomyces aureofaciens of actinobacteria. The organism Streptomyces aureofaciens 325 was obtained MTCC and cultured on the starch casein media. Screening the organism for the production was confirmed by antibiogram test. The production media was optimized by using carbon sources, and nitro...

Well-formed Streptomyces colonies were counted more rapidly when a starch casein medium containing antibiotics was supplemented with either magnesium chloride or additional sodium chloride.

In the present study 4 thermophilic actinomycetes were isolated from banana waste compost and were studied for their morphological microscopical and enzyme activity. Each isolates were subjected to starch hydrolysis to select high efficient genera for αamylase production. Among the genera isolated genus Streptomyces sp. exhibited high α-amylase production. The observations showed that Streptomy...

Various soil samples were randomly collected at different places in south Delta, Egypt. A total of 105 Streptomyces isolates, were selected according to their morphological characteristics. Antifungal activity was assessed by agar well diffusion assay. Ten isolates showed antifungal activity against various reference strains of yeast and fungi. The maximum zone of inhibition was detected for As...

Production of αamylase under solid state fermentation by Streptomyces erumpens MTCC 7317 was investigated using cassava fibrous residue, one of the major solid waste released during extraction of starch from cassava (Manihot esculenta Crantz). Response surface methodology (RSM) was used to evaluate the effect of the main variables, i.e., incubation period (60 h), moisture holding capacity (60%)...

Streptomyces sp. US 24 and Streptomyces sp. TN 58, two strains producing interesting bioactive molecules, were successfully transformed using E. coli ET12567 (pUZ8002), as a conjugal donor, carrying the integrative plasmid pSET152. For the Streptomyces sp. US 24 strain, two copies of this plasmid were tandemly integrated in the chromosome, whereas for Streptomyces sp. TN 58, the integration was...