Biodecolorization of Azo Dyes by Microorganisms Isolated From Serdang and Merambong Soils

Authors

  • Wan Lutfi Wan Johari
  • Norhusna Ghazali Environmental Forensics Research Centre, Faculty of Environmental Studies, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
  • Mohd Yunus Abd Shukor Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia

DOI:

https://doi.org/10.54987/bstr.v2i1.62

Keywords:

Merambong shoal, biodecolorization, Metanil Yellow, Reactive Black 5

Abstract

Several local microorganisms were isolated and screened for their capabilities to decolorize selected azo dyes. Two isolates, NHG and NH2 have shown their capabilities to decolorize azo dyes i.e. Reactive Black 5 (RB5, diazo) and Metanil Yellow (monoazo), respectively, under agitated condition at room temperature. Isolate NHG was capable to decolorize RB5 99.2% under shaking condition and only 43.88% under static condition in 24 hours. The use of glucose and yeast extract as carbon and nitrogen sources, respectively, has provided optimal decolorization of RB5 by isolate NHG. Isolate NH2, which was isolated from Merambong shoal soil sample, can decolorize 93.3% of Metanil Yellow in 24 hours. Crocein Orange G and Orange II, both have exactly the same molecular weights, were 25.9% and 47.8% decolorized, respectively by the same isolate under agitated conditions. No correlation between degradation rate and molecular weight, number of azo bonds or presence of aromatic molecules has been observed. 

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Published

2014-07-20

How to Cite

Wan Johari, W. L., Ghazali, N., & Shukor, M. Y. A. (2014). Biodecolorization of Azo Dyes by Microorganisms Isolated From Serdang and Merambong Soils. Bioremediation Science and Technology Research (2289-5892), 2(1), 5–8. https://doi.org/10.54987/bstr.v2i1.62

Issue

Vol. 2 No. 1 (2014)

Section

Articles

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