Antimicrobial activities of the methanol extract and compounds from the twigs of Dorstenia mannii (Moraceae)

Table 2 Minimal microbicidal concentrations (MMC in μg/ml) of the studied samples and reference antibiotics against the tested microorganisms

Tested samples*	Microorganisms, strains and MMC (μg/ml)
	E. coli		P. aeruginosa		K. pneumoniae		E.aerogenes		P. stuartii	C. albicans	M. smegmatis	M. tuberculosis
	ATCC10536	AG100	PA01	PA124	ATCC11296	KP55	ATCC13048	CM64	NAE16	ATCC 9002	ATCC 700084	ATCC 27294	MTCS1	MTCS2
DMT	512	>1024	1024	>1024	512	1024	512	>1024	256	128	256	256	>1024	>1024
1	>1024	ND	ND	ND	ND	ND	1024	ND	1024	ND	ND	NT	NT	NT
2	1024	1024	ND	ND	ND	ND	ND	ND	>1024	ND	512	>1024	ND	ND
3	128	128	8	128	256	128	64	128	64	128	128	64	256	64
4	ND	ND	1024	ND	>1024	ND	ND	ND	>1024	ND	ND	NT	NT	NT
5	>1024	ND	ND	ND	>1024	ND	128	ND	1024	64	ND	NT	NT	NT
6	>1024	>1024	>1024	ND	256	ND	64	ND	>1024	16	ND	NT	NT	NT
7	8	512	64	ND	16	256	32	ND	256	32	256	256	1024	512
8	32	512	16	64	256	128	128	128	64	256	128	128	128	128
9	ND	ND	ND	ND	ND	ND	1024	ND	>1024	64	1024	512	ND	>1024
RA^b	4	32	128	128	32	16	16	16	128	32	1	1	128	4

^aTested samples [DMT: methanol extract from the twigs of Dorstenia mannii; dorsmanins A(1), B(2), C(3), D(4) E(6), F(7), G(8), I (9) and 6,8 diprenyleriodictyol (5); ^bRA : reference antibiotics were chloramphenicol for bacteria, nystatin for C. albicans, ciprofloxacin for M. smegmatis, isoniazid for M.tuberculosis; (−): MIC > 1024 μg/ml; (ND): not determined as MIC was >1024 μg/ml

ISSN: 2662-7671