Pharmacological Evaluation of Secondary Metabolites and Their Simultaneous Determination in the Arabian Medicinal Plant Plicosepalus curviflorus Using HPTLC Validated Method

Table 4

Antibacterial activity of PCME and P1, P2, and P3.

Bacterial strain	ZOI diameter (mm)					MIC (µg/mL)
	PCME	P1	P2	P3	AMK	PCME	P1	P2	P3	AMK
Gram −
K. pneumonia	13 ± 1.8	21.3 ± 1.15	—	—	25 ± 0.8	10	6.2	—	—	5
E. fergusonii	17 ± 0.5	16.3 ± 0.57	8 ± 1	—	24 ± 1.5	8.9	9.3	11	—	4.5
P. aeruginosa	18 ± 1.2	21 ± 1	—	—	18 ± 1.3	8.4	6.6	—	—	8
Gram +
S. aureus	16 ± 1.6	18 ± 1	—	—	24 ± 1	9.2	8.3	—	—	6.2
B. cereus	20 ± 0.5	19.3 ± 1.15	—	—	20 ± 0.9	7.6	8.4	—	—	7.3

Results are expressed as mean ± standard deviation (SD).