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Table 3 Antimicrobial activity of Perovskia abrotanoides essential and fixed oils*

From: Compositional studies and Biological activities of Perovskia abrotanoides Kar. oils

Diameter of Inhibition Zone (IZ, mm)
Tested microrganisms Stem Leaves Standard drugs
Essential oil Fixed oil Essential oil Fixed oil Novidate Fungone
E. coli - 12.9 ± 0.03 - - 27.7 ± 0.02 -
S. aureus - 8.34 ± 0.03 - 11.2 ± 0.04 21.2 ± 0.03 -
B. cereus - - 15.2 ± 0.05 - 24.5 ± 0.02 -
Nitrospira sp. 9.76 ± 0.01 - - - 31.7 ± 0.04 -
S. epidermidis - - - 14.2 ± 0.07 23.4 ± 0.01 -
A. niger - - 10.6 ± 0.005 8.46 ± 0.01 - 30.2 ± 0.06
A. flavus 9.94 ± 0.03 - - 9.64 ± 0.02 - 28.4 ± 0.01
C. albicans - 8.07 ± 0.02 9.78 ± 0.01 8.32 ± 0.03 - 30.2 ± 0.01
Minimum Inhibitory Concentration (MIC, mg/mL)       
E. coli - 7.95 ± 0.02 - - 0.77 ± 0.01 -
S. aureus - 14.2 ± 0.03 - 9.40 ± 0.05 1.06 ± 0.02 -
B. cereus - - 5.75 ± 0.04 - 0.95 ± 0.03 -
Nitrospira sp. 19.6 ± 0.05 - - - 0.28 ± 0.01 -
S. epidermidis - - - 5.25 ± 0.02 0.88 ± 0.03 -
A. niger - - 11.4 ± 0.02 18.4 ± 0.01 - 0.47 ± 0.02
A. flavus 14.5 ± 0.01 - - 17.1 ± 0.03 - 0.24 ± 0.01
C. albicans - 1.26 ± 0.01 11.7 ± 0.08 1.93 ± 0.02 - 0.17 ± 0.02
  1. *Values are mean ± S.D of three separate experiments (P < 0.05).
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