antimicrobial property of lycopene oleoresin on some food pathogens running head: lycopene oleoresin antibacterial potent

The aim of this work was to study the antimicrobial activity of tomato skin lycopene oleoresin against pseudomonas aeruginosa، escherichia coli، staphylococcus ureuse، salmonella typh ، l. monocytogenes ، bacillus cereus، bacillus licheniformis. oleoresin was extracted from tomato peel. lycopene content was measured by spectrophotometer. lycopene oleoresin contained 2321mg lycopene/ 100 g oleoresin diluted in serial microdilution technique from 40,000 to 78.125 ppm. microbial culturing was done in elisa 96well microtiter plates in triplet and then mic and mbc were determined. the results were shown that tomato peel oleoresin contained 2% lycopene, can inhibit and restrain the gram positive and negative bacteria.