Antibacterial activity of the epidermal layer of coral associated fishes of Tuticorin coast


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Authors

  • R Ram Kumar Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.
  • S Senthil Kumar Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.
  • J K Patterson Edward Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.

Abstract

The methanolic extracts of epidermal layer of 10 species of coral fishes were screened against ten human pathogenic bacteria using standard disc diffusion method. The extracts of Diagramma pictum exhibited higher antibacterial activity than other species. The ethyl acetate phase of the partitioned crude
extract showed broad spectral activity indicating the non-polar nature of the active substance. The highest inhibition was observed against Streptococcus pyogenes. The extract showed promising activity against Escherichia coli, Streptococcus
pyogenes, Bacillus subtilis, Staphylococcus aureus, Proteus mirabilis and Vibrio cholerae. The crude extracts which exhibited potential activity were partially purified by column chromatography and again tested for antibacterial activity. The purified extract inhibited all the 10 pathogens assayed at 30
mg concentration.

Author Biographies

  • R Ram Kumar, Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.
    Suganthi Devadason Marine Research Institute,
    44 Beach Road, Tuticorin - 628 001.
  • S Senthil Kumar, Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.
    Suganthi Devadason Marine Research Institute,
    44 Beach Road, Tuticorin - 628 001.
  • J K Patterson Edward, Suganthi Devadason Marine Research Institute, 44 Beach Road, Tuticorin - 628 001.
    Suganthi Devadason Marine Research Institute,
    44 Beach Road, Tuticorin - 628 001.

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Issue

Vol. 52 No. 1 (2005)

Section

Note

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How to Cite

Kumar, R. R., Kumar, S. S., & Edward, J. K. P. (2011). Antibacterial activity of the epidermal layer of coral associated fishes of Tuticorin coast. Indian Journal of Fisheries, 52(1), 119-124. https://epubs.icar.org.in/index.php/IJF/article/view/7013