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Biodecolourization and biotransformation of textile dyes remazol violet-5R and remazol brillant orange-3R by Bacillus sp. DT9 isolated from textile effluents

  • Authors (legacy)
    Corresponding: Nazime MERCAN DOĞAN
    Co-authors: Doganli G.A., Bozbeyoglu N., Akdoğan H.A. and Dogan N.M.
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  • gnest_02080_published.pdf
  • Paper ID
    gnest_02080
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.002080
Abstract

The present study aims to evaluate RV-5R and RBO-3R decolourizing potential of Bacillus sp. DT9 isolated from textile effluent in Denizli (Turkey). In present study, maximum dye-decolourizing efficiency of the culture was achieved at 25 mg l-1 concentration of RV-5R and 500 mg l-1 concentration of RBO-3R. While the optimum dye-decolorizing activity of DT9 was observed at pH 7.5 and 37oC in sucrose for RV-5R (91.66% decolourization rate), 500 mg l-1 RBO-3R concentration by Bacillus sp. DT9 was decolourized at pH 9.0 and 30°C in sucrose/peptone containing medium (98.41% decolourization rate). In other step of study, DT9 was immobilized in Ca-alginate. According to immobilization results, the percentage of decolourization of RV-5R was found very similar to cell free result. But, the percentage of decolourization of RBO-3R decreased 30.0%, when DT-9 cells were immobilized in Ca-alginate. Metabolites of the RV-5R and RBO-3R biodegradation were analysed via ESI-TOF/MS analysis at the end of decolourization process, and the biotransformation and dimerization was confirmed.

Keywords
Bacillus Remazol Violet-5R Remazol Brillant Orange-3R Decolourization Dye removal
Cite this article
Doganli, G. et al. (2017) “Biodecolourization and biotransformation of textile dyes remazol violet-5R and remazol brillant orange-3R by Bacillus sp. DT9 isolated from textile effluents”, Global NEST Journal, 19(1). Available at: https://doi.org/10.30955/gnj.002080.
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  • gnest_02080_published.pdf