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Does immobilization of Thiobacillus ferrooxidans really decrease the effect of temperature on its activity?

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Abstract

It has been suggested that the influence of temperature on the activity of Thiobacillus ferrooxidans is decreased when the cells are immobilized. This is contrary to normal expectations and the work presented here indicates that it is not, in fact, the case. Experimental results are presented which show that the kinetics of Fe(II) oxidation by biofilms at 30°C are significantly faster than those at 20°C. Temperature, therefore, plays an important role in the activity of T. ferrooxidans, even in the immobilized form, and results indicate that it can also be used to control the level of biomass within the immobilized cell bioreactor.

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Authors and Affiliations

  1. Department of Chemical Engineering, UMIST, P.O. Box 88, Manchester, M60 1QD, UK

    Mehdi Nemati & Colin Webb

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  1. Mehdi Nemati
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  2. Colin Webb
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Nemati, M., Webb, C. Does immobilization of Thiobacillus ferrooxidans really decrease the effect of temperature on its activity?. Biotechnology Letters 19, 39–43 (1997). https://doi.org/10.1023/A:1018310903007

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  • DOI: https://doi.org/10.1023/A:1018310903007

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