Thymus vulgaris extract/fraction

Growth inhibition (%)

E. histolytica

G. lamblia

T. vaginalis

crude methanol extract

14.12

95.86

96.42

1^st fractionation step, ethyl acetate- methanol

ND

97.0

97.3

2^nd fractionation step, Chloroform-insoluble

ND

97.4

96.8

3^rd fractionation step, mixed hexane-acetone fraction

ND

96.1

99.0