Kinetics Modelling of Tributyltin Toxicity on The Growth of Bacillus stearothermophilus

Authors

  • Abdussamad Abubakar Department of Microbiology, Faculty of Sciences, Bauchi State University Gadau, PMB 65 Itas Gadau, Bauchi, Nigeria.
  • Salihu Ibrahim Center for Biotechnology Research, Bayero University, PMB 3011 Kano, Nigeria.
  • Ilelah Kabiru Garba Department of Environmental Management Technology, Faculty of Environmental Studies, Abubakar Tafawa Balewa University, PMB 0248 Bauchi, Nigeria.
  • Abubakar Sadiq Tanko Department of Biochemistry, Faculty of Sciences, Bauchi State University Gadau, P. M. B. 65 Itas Gadau, Bauchi, Nigeria.
  • Mansur Abdulrasheed Department of Environmental and Resource Management, Faculty of Engineering and Environmental Design, Usman Danfodiyo University, PMB 2346 Sokoto, Nigeria.
  • Abdullahi Adamu Department of Geography and Environmental Sciences, Federal University Kashere PMB 0182 Gombe, Nigeria.
  • Bose Mahmud Mohammed Department of Geography and Environmental Sciences, Federal University Kashere PMB 0182 Gombe, Nigeria.
  • Garba Uba Department of Science Laboratory Technology, College of Science and Technology, Jigawa State Polytechnic, PMB 7040 Dutse, Nigeria.

DOI:

https://doi.org/10.54987/bstr.v8i1.509

Keywords:

Tributyltin, Toxicity, Bacillus stearothermophilus, Kinetics

Abstract

The growth of the bacterium, Bacillus stearothermophilus was intensely inhibited by tributyltin (TBT). As the TBT concentration increases, the overall specific growth rate was inhibited. The growth rates obtained were then modelled according to the modified Han-Levenspiel, Wang, Liu, Shukor and modified Andrews. Among the five models, Wang shows the best fitting while the Andrew model shows poor fitting. Results of the statistical analysis showed that the Wang model was the best model based on the lowest values for RMSE and AICc, highest adjusted correlation coefficient (AdR2) and values of AF and BF closest to unity. The parameters obtained from the Wang model, which are Ccrit, μmax and m which represent critical TBT concentration (nM), maximum growth rate (nM h) and empirical constant values were 177.99 (95%, confidence interval 144.26 to 211.71), 2.41 (95%, confidence interval of 2.17 to 2.64) and 2.76 (95%, confidence interval of 1.44 to 4.07) respectively.

Downloads

Published

2020-07-31

How to Cite

Abubakar, A., Ibrahim, S., Garba, I. K., Tanko, A. S., Abdulrasheed, M., Adamu, A., Mohammed, B. M., & Uba, G. (2020). Kinetics Modelling of Tributyltin Toxicity on The Growth of Bacillus stearothermophilus. Bioremediation Science and Technology Research (2289-5892), 8(1), 7–10. https://doi.org/10.54987/bstr.v8i1.509

Issue

Vol. 8 No. 1 (2020)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).