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The document discusses the use of the bacterium Acinetobacter sp. and its enzymes for bioleaching gold from silicate ore. Acinetobacter sp. was found to more effectively leach gold than other bacteria because it grows well in medium containing iodide and produces high levels of laccase and triiodide. Under optimal conditions, Acinetobacter sp. achieved the highest gold leaching efficiency. The mechanisms of gold leaching involve laccase oxidation of gold and iodide oxidation to form soluble gold complexes.

Author

isilvamour

Language

EN