Chemical Constituents of Root Barks of Gnidia involucrata and Evaluation for Antibacterial and Antioxidant Activities

Table 4

Zone of bacterial growth inhibition (mm) of the EtOAc extract and isolated compounds from the root barks of G. involucrata at 1.5 mg/mL.

Samples	Zone of bacterial growth inhibition in mm
	Gram-positive bacteria	Gram-negative bacteria
	S. aureus	P. mirabilis	E. coli	Klebsiella pneumonia
EtOAc extract	23 ± 0.02	12 ± 0.01	14 ± 0.04	12 ± 0.03
Compound 1	6 ± 0.01	6 ± 0.01	6 ± 0.02	6 ± 0.04
Compound 2	8 ± 0.02	6 ± 0.02	11 ± 0.02	6 ± 0.02
Compound 3	6 ± 0.01	7 ± 0.02	12 ± 0.03	8 ± 0.01
Ciprofloxacin	22 ± 0.03	24 ± 0.03	21 ± 0.02	19 ± 0.02