Comparative Chemical Profiling and Biological Potential of Essential Oils of Petal, Choke, and Heart Parts of Cynara scolymus L. Head

Table 3

Antibacterial activity of essential oil extracted from the petal, choke, and heart of C. scolymus L. head against four bacterial strains.

Bacterial strain	Petal essential oil		Choke essential oil		Heart essential oil		Standard drug
	Zone of inhibition (mm)	MIC (mgmL^−1)	Zone of inhibition (mm)	MIC (mgmL^−1)	Zone of inhibition (mm)	MIC (mgmL^−1)	Zone of inhibition (mm)	MIC (mgmL^−1)
E. coli	23.2 ± 1.8	0.96 ± 0.05	12.2 ± 0.6	9.8 ± 0.40	13.4 ± 1.4	8.88 ± 0.01	25.12 ± 0.4	0.39 ± 0.07
S. aureus	20.6 ± 0.8	1.96 ± 0.02	21.6 ± 1.6	0.92 ± 0.20	10.8 ± 0.9	9.6 ± 0.003	29.8 ± 0.30	0.25 ± 0.01
B. subtilis	8.2 ± 0.6	11.4 ± 0.5	7.8 ± 1.2	12.3 ± 0.5	—	—	20.6 ± 0.60	0.48 ± 0.02
P. aeruginosa	11.3 ± 0.9	10.2 ± 0.60	18.2 ± 1.2	0.92 ± 0.20	15.3 ± 0.6	2.44 ± 0.02	22.4 ± 0.50	0.32 ± 0.03