Anthraquinones Isolated from Senna macranthera (Collad.) Irwin et Barn

V. R. Mendonça, L.L. Gomes1, G. Diaz  and M.A. N. Diaz

Abstract Chemical investigation of dichloromethane extract from roots of Senna macrantherana led the isolation of two anthraquinone and confirms this genus as a rich source of phenolic derivatives. Keywords: Senna macranthera, Fabaceae, Anthraquinones, Emodin, Phision

Antibacterial Activity of Herbal Plant Extracts against Human Pathogen

M.I.Zahir Hussaina, P.Vasantha Kumara, A.Syed Mohamed and G.Subash Chandran

Abstract The usage of herbal plants as medicine contains a wide range of ingredients that can be used to treat chronic as well as infectious diseases. The herbal plant extract of Keelanelli (Phyllanthus niruri), Adathoda (Justicia adhatoda), Kuppaimeni (Acalypha indica), Nandhiyavattum (Ervatamia coronoriae) and Aavaram (Cassia auriculata) were tested against various human pathogens. The extracts of these plants were prepared and screened against different microorganisms responsible for various infections. The alcoholic, acetone and chloroform extract of these plants were screened against three human pathogenic bacterial of Escherichia coli, Salmonella typhi and Enterobacter aerogens. The results of the present study clearly showed that water extract J. adhatoda plant extracts showed significant antibacterial activity against E.coli. The overall antibacterial activity of various herbal extract was observed against S.typhi.

Keywords: Antibacterial Activity,Medicinal Plants, Human pathogen

Volume No. 1(4)                                                  December,2011