Antimicrobial Activities of Some Constituents Isolated from a Kenyan Medicinal Plant, Capparis fascicularis DC

Table 3

Minimum bactericidal concentration for plant extracts.

Bacterium growth indications
Extract concentration (μg/mL)	S. aureus	B. subtilis	S. typhi	E. coli	S. aureus	B. subtilis	S. typhi	E. coli
	1. Petroleum ether				2. Ethyl acetate
Leaves	CFL1				CFL2
500-3.9	√	√	√	√	√	√	√	√
Root bark	CFR1				CFR2
500	√	√	√	√	X	X	X	√
250	√	√	√	√	X	√	X	√
125	√	√	√	√	X	√	√	√
500-3.9	√	√	√	√	√	√	√	√
Stem bark	CFS1				CFS2
500-3.9	√	√	√	√	√	√	√	√
	3. Methanol				4. Water
Leaves	CFL3				CFL4
500-3.9	√	√	√	√	√	√	√	√
Root bark	CFR3				CFR4
500-3.9	√	√	√	√	√	√	√	√
Stem bark	CFS3				CFS4
500-3.9	√	√	√	√	√	√	√	√
Positive control
Bacteria	S. aureus		B. subtilis		S. typhi		E. coli
Gentamicin(10 μg/mL)	X		X		X		X

(X): no growth of bacteria. (√): growth of bacteria.