Evaluation of antioxidant, anti-hemolytic, cytotoxic effects and anti-bacterial activity of selected mangrove plants (Bruguiera gymnorrhiza and Heritiera littoralis) in Bangladesh

Clinical Phytoscience

International Journal of Phytomedicine and Phytotherapy

Table 3 In vitro activity of methanol extracts of B. gymnorrhiza and H. littoralis leaves against some opportunistic pathogens

Diameter of the zone of inhibition (mm)
Tested materials	Concentration (mg/mL)	EO₁	EO₂	EO₃	EO₄	EO₅	EO₆	EO₇
B. gymnorrhiza	50	10.3 ± 0.17	12.3 ± 0.33	12.6 ± 0.44	12.1 ± 0.17	14.6 ± 0.33	10.6 ± 0.33	11.1 ± 0.17
	100	11.5 ± 0.29	16.8 ± 0.44	15.3 ± 0.33	13.6 ± 0.44	16.0 ± 0.58	12.1 ± 0.33	11.8 ± 0.33
	200	15.6 ± 0.17	17.5 ± 0.29	17.3 ± 0.17	15.6 ± 0.33	17.8 ± 0.17	15.6 ± 0.33	14.1 ± 0.17
	400	18.6 ± 0.33	18.8 ± 0.17	20.3 ± 0.72	18.3 ± 0.33	20.1 ± 0.60	18.1 ± 0.44	18.3 ± 0.44
H. littoralis	50	8.1 ± 0.17	9.8 ± 0.44	8.1 ± 0.17	10.1 ± 0.17	6.8 ± 0.17	8.1 ± 0.17	8.5 ± 0.29
	100	10.1 ± 0.17	11.8 ± 0.44	11.8 ± 0.44	12.6 ± 0.33	8.3 ± 0.17	12.5 ± 0.29	10.3 ± 0.17
	200	10.8 ± 0.17	13.3 ± 0.33	14.6 ± 0.33	13.1 ± 0.60	10.8 ± 0.44	14.1 ± 0.33	12.8 ± 0.44
	400	14.1 ± 0.17	16.1 ± 0.17	15.3 ± 0.33	15.8 ± 0.44	14.6 ± 0.33	15.3 ± 0.44	17.6 ± 0.44
NA³⁰	–	20.3 ± 0.17	23.1 ± 0.17	–	23.6 ± 0.17	–	–	–
C³⁰	–	31.0 ± 0.50	27.8 ± 0.44	–	29.3 ± 0.33	–	–	–
AZM³⁰	–	–	–	16.1 ± 0.17	–	35.8 ± 0.44	17.0 ± 0.58	16.6 ± 0.33
CAZ³⁰	–	–	–	17.6 ± 0.33	–	19.8 ± 0.17	21.1 ± 0.60	18.1 ± 0.44
VA³⁰	–	–	–	–	–	16.3 ± 0.67	–	–
AMP³⁵	–	–	–	23.1 ± 0.60	–	15.3 ± 0.17	13.8 ± 0.44	21.1 ± 0.60
Negative control (methanol)	–	–	–	–	–	–	–	–

All the data are means of three replicates (n = 3) ± SEM, **EO = Experimental Organism; EO₁ = E. coli, EO₂ = E. coli O157:H7, EO₃ = S. typhi, EO₄ = S. aureus, EO₅ = E .cloacae, EO₆ = L. monocytogens, EO₇ = S. enterica. COL²⁵ and E¹⁵ showed no zone of inhibition in this experiment