Antibacterial Activities of Ginkgo biloba L. Leaf Extracts
Table 1
Zone of inhibition of different extracts of Ginkgo biloba.
Microorganisms
Diameter of inhibition zone (mm)*
H
C
E
M
E
A
G
A. tumefaciens
16 ± 0.8
19 ± 0.6
14 ± 1.0
15 ± 0
na
na
20 ± 0.6
B. subtilis
20 ± 1.7
18 ± 0
19 ± 0.6
19 ± 0.6
na
na
20 ± 0.4
E. coli
15 ± 0
14 ± 0.3
19 ± 1.0
19 ± 0.6
na
na
21 ± 1.2
E. chrysanthemi
16 ± 0.5
17 ± 0.8
16 ± 0.6
17 ± 0.3
na
na
21 ± 1.2
X. phaseoli
16 ± 0.8
16 ± 0.6
19 ± 1.0
21 ± 0.2
na
na
21 ± 0.7
*All the values are mean ± SEM of three determinations. H, C, E, M: hexane, chloroform, ethanol, methanol; E, A, G: erythromycin, ampicillin, gentamycin; na: not active.
