| dc.description.abstract | The research has been conducted to examine antibacterial activity of
ethanol leaf extract of Purslane (Portulaca oleracea) against
Salmonella typhi and Shigella dysenteriae determined by growth on
Mueller-Hinton media (in vitro). The research used a posttest-only
control group design which used eight times dilution of ethanol leaf
extract of Purslane (1 g/ml; 0,5 g/ml; 0,25 g/ml; and 0,125 g/ml). A
solution of 0.5 % CMC-Na was used as a negative control. The
positive control for Salmonella typhi Chloramphenicol and
Siprofloksasin suspension served as positive controls for Shigella
dysenteriae, respectively. The results showed that all concentrations of
ethanol leaf extracts of Purslane affected the zone of inhibition against
Salmonella typhi and Shigella dysenteriae. The extract with
concentration of 1 g/ml showed the greatest zone of inhibition against
Salmonella typhi (60.25 cfu/ml) and Shigella dysenteriae (25.125
cfu/ml); concentration of 0.5 g/mL (88.25 cfu/ml and 30.125 cfu/ml),
concentration of 0.25 g/ml (146 cfu/ml and 38.25 cfu/ml) and
concentration 0.125 g/mL (204.25 cfu/ml and 48.25 cfu/ml). | en_US |
