Skip to main content

Table 5 Antibacterial activity of cinnamon bark, thyme, clove, peppermint, citronella, eucalyptus, and scots pine oils by vapor phase test

From: Antibacterial activity evaluation of selected essential oils in liquid and vapor phase on respiratory tract pathogens

Essential oil S. pyogenes S. pneumoniae S. mutans H. influenzae H. parainfluenzae M. catarrhalis
MIC
Cinnamon bark 75 75 90 15.62 15.62 25
Thyme 125 90 250 25 31.25 50
Clove 225 150 500 90 150 125
Peppermint 250 90 375 50 75 31.25
Citronella 125 50 250 50 62.5 25
Eucalyptus > 1500 1200 > 1500 125 200 225
Scots pine > 1500 > 1500 > 1500 500 > 1500 > 1500
  1. MIC minimum inhibitory concentration [amount of EO in μL referred to airspace volume (L)]