2.5. Recovery of the surviving bacteria (STEC)
The individual HPP treated samples and controls (10 g) were
added to 90 ml of 0.1% PW and then stomached for 2 min (Model
Bag Mixer 100 W, Inter science Co., France). The filtrate (1.0 ml),
after proper decimal dilutions, was plated on E. coli/coliform Petrifilm
™ (3M Microbiology Products Co., St. Paul, MN)