Isolation and Characterization of Actinomycetes from Acidic Cultures of Ores and Concentrates

• DOI: 10.4028/www.scientific.net/amr.825.406
• Publication Date: 2013-10-07T07:33:46Z
• Authors: Akemi Matsubara; Jasmin E. Hurtado
• Keywords: Sodium thiosulfate; Isolation; Environmental Pollution

Mining industry is a source of wealth but also environmental pollution in Peru. In this study 12 colonies actinomycetes were isolated acidic cultures from mineral ores and concentrates mines the Peruvian highlands. The isolates characterized phenotypically by microscopy growth at different conditions as pH tolerance, temperature, sodium chloride, heavy metals resistance; ferrous iron thiosulfate oxidation. All identified based on their cultural spore characteristics. Most able to grow 8 - 45°C 4 11. 60% grew 10% NaCl none them 13%. Iron oxidation was shown 4, only 25% oxidize 2. Thiosulfate not detected any isolate. showed capacity medium with 200 ppm Pb, Fe, Zn 100 Cu. physiological characteristics found work indicate potential these for bioremediation bioleaching.