Inhibitory effects of Mezoneuron benthamianum root extracts on oral cariogenic microorganisms and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging radical

Clinical Phytoscience

International Journal of Phytomedicine and Phytotherapy

Table 1 Antimicrobial activities of M. benthaminaum extracts

Test Organisms	M. benthaminaum Extracts																				Positive control
	MBM					MBH					MBE					MBAM					Gentamicin
	Concentrations (mg/mL)/ Zone of Inhibition (mm)																				μg/mL
	6.25	12.5	23	50	100	6.25	12.5	25	50	100	6.25	12.5	25	50	100	6.25	12.5	25	50	100	10
P. aeruginosa (ATCC 27855)	12	14	16	18	24	8	8	14	16	18	18	8	14	16	22	12	12	14	16	18	18
P. aeruginosa (LIO)	12	14	16	18	24	10	12	14	16	18	16	14	20	22	24	8	8	16	18	20	16
S. aureus (ATCC 29213	14	16	18	22	26	8	8	8	8	10	24	8	20	24	26	10	14	16	18	20	24
S. areus (LIO)	12	14	16	18	22	8	8	8	8	10	22	12	20	22	24	8	12	14	16	18	22
E. coli (ATCC 35218)	8	12	14	16	22	8	8	8	8	8	20	8	12	14	16	8	12	14	16	18	20
E. coli (LIO)	12	14	16	18	22	8	8	8	8	10	20	8	18	22	24	16	18	24	26	28	20
S. mutans (LIO)	12	14	17	19	23	10	10	11	12	14	12	14	17	20	23	11	13	14	16	19	22

KEY: MBM M. benthamianum methanol crude extract, MBH M. benthamianum hexane extract, MBE M. benthamianum ethyl acetate extract, MBAM M. benthamianum aqueous methanol extract, LIO Locally isolated organism “8 mm“= No inhibition