Table 2: Minimal inhibitory concentrations (MIC) and minimal bactericidal concentrations (MBC) of 15 purified compounds.

MIC/MBC (M)
123456789

Baicalin
Baicalein25/25100/10025/ND300/30025/25
Wogonin
Acteoside
Berberine 100/10025/5050/50100/10025/25100/10025/ND100/100
Coptisine50/5025/5050/50100/10025/2550/10012.5/ND100/100
-Shogaol50/5025/5025/25100/10050/10012.5/12.5
-Gingerol
Liquiritin
Glycyrrhizic acid
Ginsenoside Rg1
Ginsenoside Rb1
Corymboside
Homogentisic acid25/2512.5/12.5
Cyclic AMP

—: not active; ND: not detected.
1: F. nucleatum; 2: P. gingivalis ATCC33277; 3: P. gingivalis 381; 4: P. endodontalis; 5: P. intermedia; 6: P. melaninogenica; 7: T. forsythia; 8: T. denticola; 9: P. asaccharolytica.