Table 1.

MIC of water extracts TCHMs on P. aeruginosa.

TCHMs	Concentration (g/mL)								Negative control	Positive control
	0.500	0.250	0.125	0.0625	0.0313	0.0156	0.0078	0.0039
(1)	+	+	+	+	+	+	+	+	−	+
(2)	+	+	+	+	+	+	+	+	−	+
(3)	−	+	+	+	+	+	+	+	−	+
(4)	−	+	+	+	+	+	+	+	−	+
(5)	−	−	+	+	+	+	+	+	−	+

(1) Fructus gardeniae; (2) Rhizoma coptidis; (3) Andrographis  paniculata; (4) Cortex phellodendri Chinensis; (5) Rhubarb.