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Table 4 Antibacterial activities of ethanol extracts of valonia and shell from Q. variabilis

From: Chemical composition, antibacterial activity and related mechanism of valonia and shell from Quercus variabilis Blume (Fagaceae) against Salmonella paratyphi a and Staphylococcus aureus

Microorganisms

Inhibition zone (mm)

Valonia

Shell

Punica granatum

Chloramphenicol

DMSO

S. aureus

10.89 ± 0.12a

8.99 ± 0.22a

10.22 ± 0.18a

24.83 ± 0.61a

–

S. paratyphi A

12.37 ± 0.36a

9.62 ± 0.16a

10.30 ± 0.21a

29.96 ± 0.01a

–

S. typhimurium

10.32 ± 0.33a

8.69 ± 0.12a

9.95 ± 0.19a

27.10 ± 0.74a

–

S. enteritidis

9.52 ± 0.28a

8.56 ± 0.07a

9.35 ± 0.25a

33.96 ± 0.62a

–

L. monocytogenes

9.36 ± 0.32a

8.88 ± 0.08a

10.83 ± 0.17a

26.36 ± 0.85a

–

  1. Each value represented in tables are means ± SD (n = 3). acorrelation is significant at the 0.01 level compared with the negative control (DMSO).