Use of microorganisms for extraction of manganese from aqueous media

The ability of bacteria Bacillus subtilis (strain of Syktyvkar State University), yeast Saccharomyces cerevisiae ARCM Y-2549 and filamentous fungi Penicillium ochrochloron ARCM F-1702, Aspergillus niger ARCM F-1119 to absorb manganese Mn ions from aqueous medium was investigated. All the tested cultures were shown to absorb Mn ions effectively up to 97,4-98,3% from liquid nutritive medium, containing glucose as carbon and energy source. The ability of yeast S. cerevisiae Y-2549 to absorb Mn from filtrates obtained after the pulpbleaching with potassium permanganate in acid medium was studied. Yeast was shown to absorb Mn from filtrates by 80,4-84,2%.