The invention discloses a food foodborne
pathogenic bacteria rapidly identifying method. The food foodborne
pathogenic bacteria rapidly identifying method comprises the steps of 1)
DNA (deoxyribonucleic acid) template extraction, 2) primer screening and
reaction system optimization including selecting the specific genes of nuc, invA and prfA of
staphylococcus aureus, salmonellas and
listeria monocytogenes to separately design primer pairs, 3) PCR (
polymerase chain reaction) amplification, 4) PCR-DHPLC (
polymerase chain reaction-
denaturing high performance liquid chromatography) detection of strain
DNA, during which only strains coinciding with target amplification can be detected with amplification absorption peaks while other non-targeted amplification
bacteria detected to be negative. The food foodborne
pathogenic bacteria rapidly identifying method can detect three foodborne pathogenic
bacteria in food when applied every single time, thereby saving time and consumable agent, simplifying operation, avoiding excessive artificial errors and achieving high sensitivity.