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Loop-mediated isothermal amplification results detected by agarose gel electrophoresis: ready to eat romaine lettuce at day 0 for Salmonella Enteritidis A) and Listeria monocytogenes (B). L, 100bp Ladder; N, negative control; 100-108, decimal dilutions of Salmonella Enteritidis loop-mediated isothermal amplification amplicons.
