Table 3.

The diameter of the zone (mm) of inhibition against Escherichia coli, Staphylococcus aureus, and Bacillus subtilis by the methanol extract and different fractions from Sonneratia caseolaris fruit at different concentrations.

Bacterial strains	Fractions	Concentrations						Mean of Concentration
		10 mg/ml	Level	30 mg/ml	Level	50 mg/ml	Level
Escherichia coli	Methanol	7.67 ± 0.58f	+	14.00 ± 0.00c	++	21.00 ± 1.00a	+++	14.22 A
	Hexane	7.33 ± 0.58f	+	11.67 ± 0.58de	++	14.67 ± 0.58c	++	11.22 C
	Ethyl acetate	7.33 ± 0.58f	+	11.33 ± 0.58e	++	13.67 ± 0.58cd	++	10.78 C
	n-Butanol	7.00 ± 0.00f	+	14.33 ± 0.58c	++	17.67 ± 0.47b	+++	12.99 B
	Aqueous	7.33 ± 0.58f	+	14.67 ± 0.58c	++	17.33 ± 1.53b	+++	13.11 B
	Mean of Concentration	7.33 C		13.20 B		16.86 A
Staphylococcus aureus	Methanol	0.00f	-	11.67 ± 0.58d	++	21.00 ± 1.00a	+++	10.890 AB
	Hexane	7.33 ± 0.58e	+	11.67 ± 0.58d	++	12.67 ± 0.58cd	++	10.5567 B
	Ethyl acetate	7.67 ± 0.58e	+	12.33 ± 1.15d	++	14.67 ± 0.58bc	++	11.5567 A
	n-Butanol	0.00f	-	8.33 ± 0.58e	+	11.33 ± 1.15d	++	6.5533 C
	Aqueous	7.33 ± 0.58e	+	11.67 ± 0.58d	++	16.33 ± 0.58b	+++	11.7767 A
	Mean of Concentration	4.47 C		11.13 B		15.20 A
Bacillus subtilis	Methanol	7.00 ± 0.00f	+	11.33 ± 0.58de	++	18.67 ± 0.58a	+++	12.3333 B
	Hexane	7.67 ± 0.58f	+	10.33 ± 0.58e	++	16.33 ± 0.58b	+++	11.4433 C
	Ethyl acetate	7.33 ± 0.58f	+	12.33 ± 0.58cd	++	17.33 ± 0.58ab	+++	12.3300 B
	n-Butanol	8.33 ± 0.58f	+	13.33 ± 1.52c	++	18.33 ± 0.58a	+++	13.3300 A
	Aqueous	0.00g	-	12.33 ± 0.58cd	++	16.67 ± 0.58b	+++	9.6667 D
	Mean of Concentration	6.07 C		11.93 B		17.47 A
P (Fractions)	< 0.05
P (Concentration)	< 0.05
P (Fractions * Concentration)	< 0.05

Mean ± SD; in the same row, means with the same letter were not significantly different (P < 0.05). Levels as (+++): Strong; (++): Moderate; (+): Weak; (−): Negative