Loop‐Mediated Isothermal Amplification (LAMP) for the Rapid and Sensitive Detection of <i>Salmonella</i> Typhimurium from Pork

Abstract

The novel loop-mediated isothermal amplification (LAMP) assay is a rapid, specific, and sensitive method that has potential application for routine diagnostics of Salmonella from pork products. The isothermal method does not require expensive equipment such as a PCR thermocycler but only a simple waterbath for amplification within 90 min. Detection is even simpler by visual eye or turbidimeters that are less expensive than fluorescent spectrophotometers or real-time PCR machines. All these advantages make it a practical approach for routine use by processing industries to rapidly detect Salmonella in their environment and to implement appropriate control strategies. To improve detection sensitivities, preenrichment followed by selective enrichment may be necessary. Even so, the entire assay can be completed at the most within two 8-h working shifts.