ISSN 0976-4550  
DOI: 10.21276/Ijabpt  
 
 
 
Peer Reviewed Online International Journal of Applied Biology and Pharmaceutical Technology www.ijabpt.com
 

ANTIMICROBIAL ACTIVITY OF CRUDE EXTRACTS OF SOME FOLK MEDICINAL PLANTS AGAINST BACTERIA CAUSING GASTRO-INTESTINAL INFECTIONS  Page No 57 to 60, Volume-8, Issue-1, Jan-Mar-2017   DOI: 10.21276/ijabpt.2017.8.1.8

Dr.Maya Verma

ABSTRACT: The present study was carried out to evaluate the antimicrobial activity of methanol, petroleum and dichloromethane extract of Euphorbi.hirta L. (Euphorbiaceae), Emblica officinalis Gaertn (Euphorbiaceae ) and Butea monosperma ( Lam.) Kuntz. (Fabaceae) against bacteria Shigella dysenteriae 3, Salmonella typhii 62 and E.coli K 88 of gastro-intestinal relevance by agar disc and microbroth dilution methods. The results showed potential antimicrobial activity of tested plant extracts against the screened bacterial strains.It was found that methanolic extract of E.hirta (leaves) possessed increased antibacterial activity against S.typhii. Lowest minimum inhibitory concentration (0.625 mg/ml) and minimum bactericidal concentration (2.5mg/ml) against S.typhii were also observed for methanolic extract of E.hirta. The results show that these plant extracts exhibit antimicrobial activity and proved to be most effective as an antibacterial.

Key words: plant extract, antibacterial activity, medicinal plants.

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