Table 4 Comparative antibacterial activity of two marjoram commercial products (MR and MI) petroleum ether extract expressed as zone of inhibition (mm).

From: Comparative volatiles profiling of two marjoram products via GC-MS analysis in relation to the antioxidant and antibacterial effects

Evaluated microorganism/sample

MR (Av ± sd)

MI (Av ± sd)

Gentamycin

Gram-positive bacteria

 Staphylococcus aureus

N/A

N/A

24.01 ± 0.01

 Bacillus subtilis

16.03 ± 0.35

15.91 ± 0.40

26.02 ± 0.03

 Streptococcus mutants

N/A

N/A

20.01 ± 0.02

 Bacillus cereus

12.97 ± 0.25

13.71 ± 0.40

24.97 ± 0.06

 Enterococcus faecalis

14.03 ± 0.45

13.97 ± 0.35

26.09 ± 0.01

Gram-negative bacteria

 Enterobacter cloacae

11.60 ± 0.53

11.56 ± 0.50

27.03 ± 0.06

 Escherichia coli

N/A

N/A

29.90 ± 0.01

 Salmonella typhimurium

N/A

N/A

17.02 ± 0.03

Back to article page