32ANTIBACTERIAL ACTIVITY OF VARIOUS EXTRACTS OF ROOTS OF DECALEPIS HAMILTONII WIGHT AND ARNThe present study was performed to investigate the antibacterial activity of roots of different solvent (benzene, chloroform, ethyl acetate and methanol). The various root extracts of Decalepis hamiltonii were screened phytochemically for the presence of secondary metabolites and for in vitro antibacterial activity respectively. Antibacterial activity of the various extracts of D.hamiltonii was studied against microbial sample cultures of gram positive and negative coccus (streptococcus , staphylococcus, mono coccus, diplo coccus) and bacilli species by cup plate agar method. Streptomycin and tetracycline were used as standard reference drugs. Among the all extracts the methanol and benzene extracts were found active against most of the tested pathogenic bacteriabio.poorna@gmail.comResearch322013Decalepis hamiltonii,Antibacterial activityPoorna chandar,Madhu Sudhan,Manikanta Kumar A,Manjunath Shetty K.S,C. HemanthSrinivasa Pharmaceutical Institute and Centre for Research, Vikarbad, Burugupally (Vil), R.R.District, Andhra Pradesh, India,Srinivasa Pharmaceutical Institute and Centre for Research, Vikarbad, Burugupally (Vil), R.R.District, Andhra Pradesh, India,Srinivasa Pharmaceutical Institute and Centre for Research, Vikarbad, Burugupally (Vil), R.R.District, Andhra Pradesh, India,Srinivasa Pharmaceutical Institute and Centre for Research, Vikarbad, Burugupally (Vil), R.R.District, Andhra Pradesh, India,Srinivasa Pharmaceutical Institute and Centre for Research, Vikarbad, Burugupally (Vil), R.R.District, Andhra Pradesh, India