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Table 3 Diameter of antibacterial circles of each herb and QDS

From: Anti-inflammatory and in-vitro antibacterial activities of Traditional Chinese Medicine Formula Qingdaisan

Group Diameter of antibacterial circles (mm, mean ± SD)
Escherichia coli Staphylococcus Salmonella Staphylococcus aureus Shigella
Coptis 12 ± 1.71a 22 ± 2.15a 6 ± 0.00 19 ± 3.46a 18 ± 2.25a
Phellodendron 6 ± 0.00b 14 ± 1.44b 6 ± 0.00 12 ± 1.96b 6 ± 0.00b
Acacia 6 ± 0.00b 10 ± 2.71c 6 ± 0.00 11 ± 0.89c 6 ± 0.00b
Mentha 6 ± 0.00b 6 ± 0.00d 6 ± 0.00 6 ± 0.00d 6 ± 0.00b
Platycodon Indigo 6 ± 0.00b 6 ± 0.00d 6 ± 0.00 6 ± 0.00d 6 ± 0.00b
Naturalis 6 ± 0.00b 6 ± 0.00d 6 ± 0.00 6 ± 0.00d 6 ± 0.00b
QDS 6 ± 0.00b 6 ± 0.00d 6 ± 0.00 6 ± 0.00d 6 ± 0.00b
Negative control 6 ± 0.00b 6 ± 0.00d 6 ± 0.00 6 ± 0.00d 6 ± 0.00b
  1. Different lowercase in the same line means significant difference (p < 0.05)