Antibacterial and Antifungal Activities of the Leaf Exudate of Aloe megalacantha Baker

Table 1

Zone of inhibition of the leaf exudate of Aloe megalacantha against bacterial species.

Bacterial strains	Diameter of zone of inhibition in mm
	Latex (mg/mL)			Ceftriaxone 30 µg	DMSO
	200	100	50
S. aureus ATCC 29213 (standard)	16.63 ± 0.12^a2b1c2	14.23 ± 0.53^a2c2	11.5 ± 0.16^a2	22.34 ± 0.734 0
S. aureus (clinical isolate)	15.67 ± 0.26^a3b2c1	12.46 ± 0.29^a3c3	10.98 ± 0.3^a2	14.11 ± 0.61	0
E. coli ATCC 25922 (standard)	15.45 ± 0.23^a2b2c2	11.36 ± 0.71^a2c3	9.66 ± 0.91^a2	24 ± 0.28	0
E. coli (clinical isolate)	14.48 ± 0.28^a2b1c2	10.8 ± 0.32^a2c3	9.53 ± 0.32^a2	0.00 ± 0.00	0
P. aeruginosa ATCC 27853 (standard)	15.66 ± 0.04^a2b2c2	12.43 ± 0.6^a2c2	9.57 ± 0.74^a2	27.03 ± 0.31	0
K. pneumonia ATCC 700603 (standard)	15.00 ± 0.12^a2b2c2	11.6 ± 0.61^a2c3	10 ± 0.21^a2	22.8 ± 0.27	0

Values are expressed as mean ± SEM (n = 3), and analysis was carried out with one-way ANOVA followed by the Tukey test; ^acompared to the positive control, ^bto 100 mg/mL, and ^cto 50 mg/mL, , , and . 0 = negative control has shown no antibacterial activity; ceftazidime 30 µg.