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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.