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Identification of Novel Bacterial Strains for Enhanced Decolourization of Synthetic Dyes

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Author Affiliations

  • 1Department of PG studies in Biotechnology, Nrupathunga University, NT road, Bangalore, India
  • 2Department of PG studies in Biotechnology, Nrupathunga University, NT road, Bangalore, India
  • 3Department of PG studies in Biotechnology, Nrupathunga University, NT road, Bangalore, India
  • 4Department of PG studies in Biotechnology, Nrupathunga University, NT road, Bangalore, India

Int. Res. J. Biological Sci., Volume 14, Issue (2), Pages 1-11, May,10 (2025)

Abstract

Synthetic dyes present in textile effluents are significant pollutants of aquatic environments, where they accumulate and pose severe ecological and health risks by entering the food chain. Bacterial bioremediation offers an effective approach to the degradation and management of these contaminants. This study deals with the identification and characterization of three novel bacterial strains capable of decolorizing Methylene Blue, Direct Red 80, and Direct Green 2B dyes. Various physicochemical parameters were optimized to enhance the efficiency of the decolorization process. Among the strains tested, Pseudomonas aeruginosa immobilized using different alginate support matrices, resulted in an 97.7% dye degradation overnight. The findings highlight the potential of these bacterial strains in bioremediation, providing a sustainable approach to treating industrial wastewater contaminated with dyes.

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