291ANTIMICROBIAL ACTIVITY OF PEPPER, BLACK SEED, MUSTARD AND OLIVE AGAINST FIVE PATHOGENIC MICROORGANISMSMany medicinal plants have been identified from indigenous pharmacopoeias, because of which they are still making contribution to drug development. They have been used to extend the shelf life of foods mainly because of their preservation action against microorganism. In this study, Organic solvent like Ethanol, Methanol, Butanol, Hexone and Acetone was used for the extraction of bioactive compounds from (Pepper, Black Seed, Mustard and Olive). These extracts were evaluated for antimicrobial activity against A. niger, B. subtilis, S. aureus, P. auregunisa, and S. typhi. The antimicrobial assay was done by agar well diffusion method on Mueller-Hinton Agar plates. All of the screened species showed antimicrobial activity against all microorganisms. These findings designate future scope for the use of these species and extended work to reveal specific bioactive compound liable for antimicrobial activity.karwan2711@gmail.comResearch492013Pepper,Black Seed,Mustard,Olive,Antimicrobial activityKarwan Sedeeq MohammedIndian Academy Degree College, Bangalore, India.