Study of Antibacterial Activity of Root Bark, Leaves, and Pericarp Extracts of Diploknema butyracea and Evaluation of Prospective Antioxidant Activity

Table 3

Antibacterial activity of leaves, bark, and fruit extract of D. butyracea.

Zone of inhibition in mm (mean ± SD)
Different samples	E. coli	K. pneumoniae	S. epidermidis	S. aureus
HLE	−	−	−	−
EALE	−	8.33 ± 0.57	−	−
MLE	−	−	−	−
ALE	−	10.33 ± 0.57	−	−
HBE	8 ± 1	−	−	8.66 ± 0.57
EABE	−	−	−	−
MBE	−	13 ± 1	14.33 ± 0.57	17.33 ± 0.57
ABE	−	10 ± 0	−	7.66 ± 0.57
HPE	−	−	−	9 ± 0
EAPE	10 ± 1	9.66 ± 0.57	−	11.33 ± 1.15
MPE	−	−	−	10.33 ± 0.577
APE	−	−	8.66 ± 0.57	9.33 ± 0.57
Gentamycin	−	−	20.8 ± 1.30	22.62 ± 2.38
Ciprofloxacin	26 ± 8.5	25 ± 9.5	−	−

Note. − indicates inactive in the evaluated concentrations. (Abbreviations: HLE: hexane leaf extract; EALE: ethyl acetate leaf extract; MLE: methanolic leaf extract; ALE: aqueous leaf extract; HBE: hexane root bark extract; EABE: ethyl acetate root bark extract; MBE: methanolic root bark extract; ABE: aqueous root bark extract; HPE: hexane pericarp extract; EAPE: ethyl acetate pericarp extract; MPE: methanolic pericarp extract; APE: aqueous pericarp extract).