ISSN: 2393-9508
e-ISSN: 2582-4902

The Biobrio 8(3 & 4), 2021

Antibacterial activity of chitosan from freshwater prawn, Macrobrachium dayanum (Henderson, 1893) against Escherichia coli and Staphylococcus aureus

Pulin Kerketta & Suhasini Besra


In the present study, chitosan has been extracted from M.dayanum. Further the antibacterial activity of different concentrations (25%, 50%, 75%, 100%) of chitosan was tested against Gram-positive bacteria, Staphylococcus aureus (ATCC 6538) and Gram-negative bacteria, Escherichia coli (ATCC8739) by Agar Well Diffusion method. The result of the present study suggests that chitosan has concentration dependent antibacterial activity against both bacterial strains indicating its possibility of using as antibacterial agent.


M. dayanum, Antibacterial, Chitosan, S. aureus, E. coli.

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