VSV Surface Intervention Process for Destroying Bacteria in the Surface of Freshly Slaughtered Chicken

摘要

The Vacuutn/Steam/Vacuum surface intervention pilot plant processor was scaled up to a mobile unit that can be transported to within close proximity of chicken processing plants. After several modifications to the treatment chamber, specifically to the mandrel that supports the broiler carcass, to minimize mechanical damage, the unit was capable of 1.1 log cfu/ml kill of inoculated Listeria innocua and 1.4 log cfu/ml kill of inoculated E. coli K-12. Field tests achieved 1.4 log kill of E. coli and 1.2 log kill of Campy lobacter on freshly processed chicken using 3 cycles and 138C saturated steam. But, there was extensive mechanical damage. The mandrel was modified in the pilot plant to eliminate the mechanical damage. With mechanical damage eliminated, the bacteria kill was 1.1 ― 1.6 log of inoculated E. coli K-12. The total process time was 1.1 s.