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ANTIBACTERIAL ACTIVITY OF ASCIDIAN PHALLUSIA NIGRA (SAVIGNY, 1816) AGAINST BIOFILM FORMING BACTERIA

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Abstract (2. Language): 
Antibacterial activity of methanol and methanol extracts of Phallusia nigra at different was evaluated by well diffusion method against various biofilm forming bacteria. The crude methanol extract was more active and showed broad-spectrum of activity than the crude ethyl acetate extract against the tested microbes. The biofilm forming bacteria used were Pseudomonas aeruginosa, Escheria coli, Staphylococcus aureus and Vibrio parahaemolyticus. Maximum inhibition zone (16 mm) was observed against Staphylococcus aureus in crude methanol extract (1 mg mL1 concentration) and the minimum inhibition zone (6 mm) was observed against Escheria coli in ethyl acetate extract (0.5 mg mL1 concentration).The range of inhibition in the test extract was less than the standard antibiotic used in all the strains.
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Ananthan G, IJPRBS, 2013; Volume 2(4): 131-138
ISSN: 2277-8713
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