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Biodecolourisation of Reactive Red 120 as a Sole Carbon Source by a Bacterial Consortium—Toxicity Assessment and Statistical Optimisation

Author

Listed:
  • Motharasan Manogaran

    (Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia)

  • Nur Adeela Yasid

    (Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia)

  • Ahmad Razi Othman

    (Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Malaysia)

  • Baskaran Gunasekaran

    (Faculty of Applied Science, UCSI University, Kuala Lumpur 56000, Malaysia)

  • Mohd Izuan Effendi Halmi

    (Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia)

  • Mohd Yunus Abd Shukor

    (Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia)

Abstract

The application of microorganisms in azo dye remediation has gained significant attention, leading to various published studies reporting different methods for obtaining the best dye decolouriser. This paper investigates and compares the role of methods and media used in obtaining a bacterial consortium capable of decolourising azo dye as the sole carbon source, which is extremely rare to find. It was demonstrated that a prolonged acclimation under low substrate availability successfully isolated a novel consortium capable of utilising Reactive Red 120 dye as a sole carbon source in aerobic conditions. This consortium, known as JR3, consists of Pseudomonas aeruginosa strain MM01, Enterobacter sp. strain MM05 and Serratia marcescens strain MM06. Decolourised metabolites of consortium JR3 showed an improvement in mung bean’s seed germination and shoot and root length. One-factor-at-time optimisation characterisation showed maximal of 82.9% decolourisation at 0.7 g/L ammonium sulphate, pH 8, 35 °C, and RR120 concentrations of 200 ppm. Decolourisation modelling utilising response surface methodology (RSM) successfully improved decolourisation even more. RSM resulted in maximal decolourisation of 92.79% using 0.645 g/L ammonium sulphate, pH 8.29, 34.5 °C and 200 ppm RR120.

Suggested Citation

  • Motharasan Manogaran & Nur Adeela Yasid & Ahmad Razi Othman & Baskaran Gunasekaran & Mohd Izuan Effendi Halmi & Mohd Yunus Abd Shukor, 2021. "Biodecolourisation of Reactive Red 120 as a Sole Carbon Source by a Bacterial Consortium—Toxicity Assessment and Statistical Optimisation," IJERPH, MDPI, vol. 18(5), pages 1-26, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:5:p:2424-:d:508911
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    References listed on IDEAS

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    1. Mei Yin Ong & Saifuddin Nomanbhay & Fitranto Kusumo & Raja Mohamad Hafriz Raja Shahruzzaman & Abd Halim Shamsuddin, 2021. "Modeling and Optimization of Microwave-Based Bio-Jet Fuel from Coconut Oil: Investigation of Response Surface Methodology (RSM) and Artificial Neural Network Methodology (ANN)," Energies, MDPI, vol. 14(2), pages 1-17, January.
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    Cited by:

    1. Patricia López-Casaperalta & Fredy Nicolás Molina-Rodríguez & Fernando Fernandez-F & Jeanette Fabiola Díaz-Quintanilla & Jaime E. Barreda-Del-Carpio & Julio Cesar Bernabe-Ortiz & Jorge Alberto Aguilar, 2022. "Optimization of a Textile Effluent Treatment System and Evaluation of the Feasibility to Be Reused as Influents in Textile Dyeing Processes," Sustainability, MDPI, vol. 14(23), pages 1-18, November.
    2. Anna Christina R. Ngo & Dirk Tischler, 2022. "Microbial Degradation of Azo Dyes: Approaches and Prospects for a Hazard-Free Conversion by Microorganisms," IJERPH, MDPI, vol. 19(8), pages 1-24, April.

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