Table 2. Antibacterial activity of plant extracts on microorganisms
Sample
Listeria grayi
Escherichia coli
Hot water
Enzyme
Hot water
Enzyme
Castanea crenata var. dulcis
-
+
+
+
Terminalia chebula
-
+
+
+
Schinopsis lorentzii
-
-
+
++
Acacia decurrens var. mollis
-
+
-
+
Treatment concentration of sample : 1 mg
- : No effect
+ : clear zone diameter < 5 mm
++: clear zone diameter > 5 mm