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Evaluation of antioxidant properties and total phenolic contents of some strains of microalgae
Antioxidant activities of both cells and extracellular substances were evaluated in 12 soil-isolated strains of microalgae according to FRAP and DPPH-HPLC assays. Their total phenolic contents wereExpand
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Metal solubilization from metal-containing solid materials by cyanogenic Chromobacterium violaceum.
Different cyanogenic bacterial strains (Chromobacterium violaceum, Pseudomonas fluorescens, Bacillus megaterium) were cultivated under cyanide-forming conditions in the presence of metal-containingExpand
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Purification and biochemical characterization of extracellular laccase from the ascomycete Paraconiothyrium variabile.
An extracellular laccase-producing ascomycete was isolated from soil and identified as Paraconiothyrium variabile using rDNA sequence analysis. Typical laccase substrates includingExpand
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Production of cholesterol oxidase by a newly isolated Rhodococcus sp.
Fifteen strains of microorganisms with ability to degrade cholesterol were isolated. Among them a Gram-positive, non-motile, non-sporing bacterium with meso-DAP in the cell wall and with a rod-coccusExpand
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From bacteria to human: a journey into the world of chitinases.
Chitinases, the enzymes responsible for the biological degradation of chitin, are found in a wide range of organisms from bacteria to higher plants and animals. They participate in numerousExpand
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Purification and characterization of two extracellular endochitinases from Massilia timonae.
Two extracellular chitinases (designated as Chi-56 and Chi-64) produced by Massilia timonae were purified by ion-exchange chromatography, ammonium sulfate precipitation, and gel-filtrationExpand
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Biosynthesis and characterization of gold nanoparticles produced by laccase from Paraconiothyrium variabile.
During recent years investigation on the development of eco-friendly processes for production of gold nanoparticles (GNPs) have received much attention due to hazardous effects of chemical compoundsExpand
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Biosynthesis and recovery of rod-shaped tellurium nanoparticles and their bactericidal activities
Highlights: ► Biosynthesis of rod shape tellurium nanoparticles with a hexagonal crystal structure. ► Extraction procedure for isolation of tellurium nanoparticles from Bacillus sp. BZ. ► ExtractedExpand
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Formation of water-soluble metal cyanide complexes from solid minerals by Pseudomonas plecoglossicida.
A few Pseudomonas species are able to form hydrocyanic acid (HCN), particularly when grown under glycine-rich conditions. In the presence of metals, cyanide can form water-soluble metal complexes ofExpand
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