Antibacterial activity of Weissella confusa by disc diffusion method

  • Manigandan Krishnan Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
  • Debasish Kumar Dey Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
  • Chanchal Sharma Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
  • Sun Chul Kang Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
Keywords: Disc diffusion, Weissella confusa, Escherichia coli, Visual experiment


A visual experiment was conducted to investigate the antimicrobial potential of cell-free culture supernatant of Weissella confusa (DD_A7) against the foodborne pathogenic bacteria Escherichia coli 0157: H7 by disc diffusion method. The result revealed that DD_A7 exerted effective antibacterial potential to control the growth of E. coli upon treatment with 100 µg/mL of the culture supernatant. This study demonstrated that DD_A7 is a potent probiotic candidate to reduce the risk factor associated with Shiga toxin-producing E. coli.

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How to Cite
Krishnan, M., D. K. Dey, C. Sharma, and S. C. Kang. “Antibacterial Activity of Weissella Confusa by Disc Diffusion Method”. Bangladesh Journal of Pharmacology, Vol. 14, no. 3, July 2019, pp. 117-22, doi:10.3329/bjp.v14i3.41545.
Visual Experiment