257-261
Water, methanol and acetone extracts of polychaete Perinereis cultrifera were
screened for their antibacterial and antifungal activities. Extracts were
obtained from the whole body tissue of the animals and tested against 10
different pathogenic bacteria and 4 pathogenic fungi. Fractionated extracts of
acetone (A), methanol (M) and acetone with methanol prepared in different
concentrations such as 1, 5, 25, 50,100, 200, mg/l were also tested against
bacterial pathogens. Among the extracts, methanol showed maximum antibacterial
activity against Staphylococcus aureus (8.0
mm) and minimum against Klebsiella oxytoca (1.0 mm) both in
methanol and acetone extracts. As regards antifungal pathogens, methanol
extract showed maximum activity against Rhizopus
sp. (12.0mm) and minimum against Aspergillus
niger
(2.0mm) in the water extract. Trace activity was noticed against Mucor spp. and A. niger
in water and acetone extracts respectively.</smarttagtype