TABLE 1.

Effect of carvacrol and p-cymene on the motility of E. coli O157:H7 ATCC 43895 cellsa

Treatment during:Essential oil component addedConcn of essential oil component (mM)Motility classification
MotileReduced motilityNonmotile
Overnight incubationControl0X
Carvacrol1X
p-Cymene1X
10X
Mid-exponential growth phaseControl0X
Carvacrol0.3X
0.5X
0.8X
1.0X
p-Cymene0.3X
0.5X
0.8X
  • a Cells were grown overnight in MHB in the presence of the substance or were treated in the exponential growth phase.