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Table 2 Efficacy of main components and reference standards of indigenous essential oils against tested bacteria using TLC-bioautography

From: Antimicrobial activity of the bioactive components of essential oils from Pakistani spices against Salmonella and other multi-drug resistant bacteria

Bacterial strains Essential oilsa
  C. cyminum C. verum A. subulatum S. aromaticum
  Cumin aldehyde R f b,c0.55 Cumin aldehyde standard Cinnam aldehyde R f b,c0.45 Cinnam aldehyde standard Eucalyptol R f b,c0.52 Eucalyptol standard Eugenol R f b,c0.22 Eugenol standard
S. typhi D1 20.0 ± 0.57d 17.0 ± 0.57 24.6 ± 0.33* 24.0 ± 0.57* 25.0 ± 0.57* 22.3 ± 0.33 22.0 ± 0.57 24.6 ± 0.66*
S. typhi G7 20.1 ± 0.60 18.5 ± 0.86 26.5 ± 0.28* 25.6 ± 0.66* 25.5 ± 0.28* 23.0 ± 0.57 21.5 ± 0.28 21.0 ± 0.57
S. para typhi A 24.5 ± 0.28 22.0 ± 0.1 25.5 ± 0.28 22.3 ± 0.33 24.6 ± 0.33 23.0 ± 0.57 20.0 ± 0.57 22.3 ± 0.88*
E. coli SS1 9.33 ± 0.33 8.66 ± 0.33 Re Re 9.33 ± 0.33 11.3 ± 0.66 29 ± 0.57 31.6 ± 0.88*
S. aureus 12.0 ± 0.86 11.8 ± 0.60 23.5 ± 0.28* 23.16 ± 0.60* Re Re 22.6 ± 0.88* 25.3 ± 0.66*
B. licheni formis 15.6 ± 2.18 18.6 ± 2.66 32.6 ± 1.20* 31.6 ± 0.88* 20.3 ± 0.88 19.6 ± 0.88 16.3 ± 0.33 19.3 ± 0.33
P. fluores cens Re Re 15 ± 0.57 17.6 ± 0.33* Re Re Re Re
  1. adiameter zone of growth inhibition were presented as mean ± S.E. in mm; bretardation factor; cmobile phase: n-hexane, ethyl acetate (9:1 v/v); deach value is presented as mean of three replicate; eresistant; *showed significant (p <0.05) values.