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A comparative study of antimicrobial activity of the leaf and stem of Alocasia indica L.

Research Paper | October 1, 2015

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Md. Rabiul Karim, Nasrin Ferdous, Narayan Roy, Subed Chandra Dev Sharma, Md. Golam Sarowar Jahan, Mohammad Shariar Shovon

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Int. J. Biosci.7( 4), 87-93, October 2015

DOI: http://dx.doi.org/10.12692/ijb/7.4.87-93


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Plants are good sources of pharmaceutical compounds, which confer resistance to pathogenic microorganisms. The aim of this study was to investigate the antimicrobial activity of ethanol extract of both leaves and stems of Alocasia indica L in vitro by the agar disc diffusion method. The plant showed antibacterial and antifungal activity against Gram positive and Gram negative bacteria and pathogenic fungi. Leaf and stem extracts were found to have antibacterial activity against Staphylococcus aureus, Bacillus subtilis, E. coli and Klebsiella pneumoniae. These extracts also showed antifungal activity against Aspergillus niger, Candida albicans and Saccharomyces cerevisiae. The experiments demonstrated similar inhibition of bacterial and fungal growth for leaf and stem extracts. This indicates the potentiality of Alocasia indica L as an important source of antimicrobial compound.


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A comparative study of antimicrobial activity of the leaf and stem of Alocasia indica L.

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