2.4. ListShield™ application
All foods were treated by application of either phosphate buffered
saline (PBS) or sterile water, for control samples, or ListShield™
for test samples. ListShield™ was diluted with sterile
water or PBS, according to the control treatment used in the
respective experiment. In all instances, application was via spraying,
using a spray gun (Badger Air-Brush Co., Franklin Park, IL; Basic
Spray Gun, model #250-2).