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Udayaprakash N.K.,Veltech Technical University | Aravind R.,University of Madras | Kaviyarasan V.,University of Madras | Hariram S.B.,Veltech Hightech Dr Rangarajan Dr Sakunthala Rangarajan Engineering College
International Journal of Pharma and Bio Sciences | Year: 2011

In this study a comparison on antibacterial potency of common weeds i.e. Antigonon leptopus, Croton sparsiflorus and Lantana camara were conducted. Antibacterial efficacy on the microorganisms, Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Staphylococcus aureus were investigated. For this purpose, the leaf extracts of the plants were prepared using Acetone, Chloroform, Hexane and Methanol. The prepared extracts were analyzed for its bio-efficacy through Disc diffusion method. Among the solvent studied, Methanolic extract alone given positive results. The Hexane and Chloroform extract of all the three plants showed poor response in resisting bacterial growth. Among the plant studied, methanolic extract of Lantana camara possess greater activity than Croton sparsiflorus and Antigonon leptopus.

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