15. Screening of Antimicrobial activity of Aqueous extracts of Leaves, Flower and Stem of Eclipta alba

Plants are the oldest source of pharmacologically active compounds, and have provided humankind with many medically useful compounds for centuries. In this study aqueous extract of leaves, stem and flower of Eclipta alba were tested for antimicrobial activity against Escherichia coli (ATCC25923),Enterobacter cloacae (ATCC10699), Enterococcus faecalis (ATCC10741), Proteus vulgaris (ATCC12454) Staphylococcus aureus (ATCC25923) Klebsiella pneumonia (ATCC15380) and Staphylococcus. Saprophyticus (ATCC35552) It was shown that leaves extract effective against E. cloacae & K .pneumoniae but not against others, while aquous extract of stem shown good antitimicrobial effect against E. cloacae, E. faecali, K. pneumoniae and S. saprophyticus but E. coli, P. vulgaris, S. aureus were found resistant and The aqueous extract of flower shown reliabe ZOI against P.vulgaris ,S.aureus and S.saprophyticus while resistant against all other microbes.