Abstract

ANTIBACTERIAL ACTIVITY OF AQUEOUS AND ACETONE IPS EXTRACTS OF GRACILARIA CRASSA

N. Padma Priya* and T.V. Poonguzhali

Abstract

Marine macroalgae are considered as an excellent source of bioactive compounds which has a broad range of biological activities including antibacterial and antioxidant. In the present study G.crassa was collected from Rameswaram coast Mandapam and amended in CHU 13 media for cultivation under suitable lab conditions. Crude aqueous and acetone extracts was used. The present study aims to test its effectiveness against five strains of bacteria and five strains of fungi. Three gram (+) ve bacteria namely B.subtilis, S.aureus, S.typhi and two gram (-) ve bacteria namely E.coli and K.pneumoniae and five fungal strains namely C.albicans, C.tropicalis, E.floccusum, M. gypseum, T.rubrum were carried out by well diffusion method. Results showed the IPS extracts were resisted by most bacterial and fungal strains used of which higher inhibitory effect in bacteria was showed in B.subtilis and S.aureus and in fungi C.albicans showed higher inhibitory effect.

Keywords: G.crassa, IPS, antibacterial activity.