Modak, Jayant M and Natarajan, KA and Mukhopadhyay, Sanghamitra (1996) Development of temperature-tolerant strains of Thiobacillus ferrooxidans to improve bioleaching kinetics. In: Hydrometallurgy, 42 (01). pp. 51-61.
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An isolate of Thiobacillus ferrooxidans derived from gold mine water samples was repeatedly subcultured at increasing temperatures (from 30 degrees to 42 degrees C) in 9K medium. The temperature-adapted strain was found to be more efficient in the bioleaching of pyrite mineral than the wild type. When temperature-tolerant strains were cultured repeatedly in 9K medium at 30 degrees C, the temperature tolerance was completely lost, These results indicate that the temperature tolerance was stress-dependent and not a permanent trait of the adapted strain, The potential utility of such temperature-tolerant strains of Thiobacillus ferrooxidans in sulphide mineral dissolution is demonstrated.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Department/Centre:||Division of Mechanical Sciences > Chemical Engineering
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
|Date Deposited:||01 Jun 2009 05:16|
|Last Modified:||19 Sep 2010 05:30|
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