Recent Trends in Microbiological Safety of Fruits and Vegetables

Fig. 3. Schematic diagram of the immunomagnetic separation and polymerase chain reaction assay for the detection of bacteria in seed. Super paramagnetic beads (B) coated with antibodies specific to the target bacterium are incubated with seed extracts. Beads are then rinsed to eliminate non-target bacteria and PCR inhibitors then either boiled to extract DNA for PCR detection or plated on selective media for recovery of viable colonies (48).



Image from Plant Health Progress article:
Recent Trends in Microbiological Safety of Fruits and Vegetables