Mathematical Modelling of the Growth Curve of Vibrio sp. Isolate MZ Grown in Seawater Medium

Authors

  • Maryam Zahaba Department of Chemistry, International Islamic University Malaysia (IIUM), Jalan Sultan Haji Ahmad Shah, Indera Mahkota, 25200, Kuantan, Pahang Malaysia.
  • Mohd Izuan Effendi Halmi Department of Land Management, Faculty of Agriculture, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
  • Ahmad Razi Othman Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • Mohd Yunus Shukor Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia.

DOI:

https://doi.org/10.54987/bstr.v6i1.397

Keywords:

mathematical modelling, Vibrio sp., Hydrocarbon, bacterial growth, Huang

Abstract

Pollution in the environment is deteriorating the ecology due to human activities in a large array of industrial and agricultural sectors. Bioassay of polluted waters using bioluminescent bacterium has been touted as one of the most economical, rapid and sensitive tests. The growth of the bacterium on seawater medium exhibited a typical sigmoidal profile. To extract important growth parameters useful for further modelling exercise, various primary growth models were utilized in this study such as Modified Logistic, modified Gompertz, modified Richards, modified Schnute, Baranyi-Roberts, von Bertalanffy, Huang and the Buchanan three-phase model. The best performance was Huang model with the lowest value for RMSE, AICc and the highest value for adjusted R2. The AF and BF values were also excellent for the model with their values were the closest to 1.0. The Huang parameters, which include A or Y0 (bacterial growth lower asymptote), ï­m (maximum specific bacterial growth rate), ï¬ (lag time) and Ymax (bacterial growth upper asymptote) were 7.866 (95% confidence interval of 7.850 to 7.883), 0.329 (95% confidence interval of 0.299 to 0.359), 1.543 (95% confidence interval of 1.303 to 1.784) and 8.511 (95% confidence interval of 0.299 to 0.359).

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Published

2018-07-31

How to Cite

Zahaba, M., Halmi, M. I. E., Othman, A. R., & Shukor, M. Y. (2018). Mathematical Modelling of the Growth Curve of Vibrio sp. Isolate MZ Grown in Seawater Medium. Bioremediation Science and Technology Research (e-ISSN 2289-5892), 6(1), 31–34. https://doi.org/10.54987/bstr.v6i1.397

Issue

Vol. 6 No. 1 (2018)

Section

Articles

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