Modeling the growth curves of Acinetobacter sp. strain DRY12 grown on diesel

Authors

  • M.I.E. Halmi Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia.
  • M.S. Shukor Snoc International Sdn Bhd, Lot 343, Jalan 7/16 Kawasan Perindustrian Nilai 7, Inland Port, 71800, Negeri Sembilan, Malaysia.
  • W.L.W Johari Snoc International Sdn Bhd, Lot 343, Jalan 7/16 Kawasan Perindustrian Nilai 7, Inland Port, 71800, Negeri Sembilan, Malaysia.
  • Mohd Yunus Abd Shukor Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia.

DOI:

https://doi.org/10.54987/jebat.v2i1.143

Keywords:

Biodegradation, diesel Acinetobacter sp., modified Gompertz, mathematical modeling

Abstract

Diesel is a toxic xenobiotic. However, some bacteria are capable of using diesel as a carbon source for energy and growth. At high diesel concentration, an inhibition to the growth curves is seen. The study of the growth inhibitory properties of diesel on bacterium has often been carried out through the modelling of the specific growth rates obtained from the linearization of the
growth curves of bacterium. Since there exists a variety of models for obtaining a more accurate specific growth rates from bacterial growth curves such as logistic, Gompertz, Richards, Schnute, Baranyi-Roberts, Von Bertalanffy, Buchanan three-phase and more recently Huang models, the
use of these models over the simplification through linearization is needed. The modified Gompertz model gave the best fitting based on statistical test with the lowest values for RMSE and corrected Akaike Information Criteria, the highest value for adjusted R2 and the closest values to unity for both Accuracy and Bias factors. The modified Gompertz model is thus the best model to obtain specific growth rates from the growth curves of Acinetobacter sp. strain DRY12
grown on diesel.

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Published

2014-07-31

How to Cite

Halmi, M., Shukor, M., Johari, W., & Shukor, M. Y. A. (2014). Modeling the growth curves of Acinetobacter sp. strain DRY12 grown on diesel. Journal of Environmental Bioremediation and Toxicology, 2(1), 33–37. https://doi.org/10.54987/jebat.v2i1.143

Issue

Vol. 2 No. 1 (2014)

Section

Articles

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