Date of Completion


Document Type

Research Project

Degree Name

Grade 12


Antibacterial, Antibacterial agents, Eleusine indica, Escherichia coli, Staphylococcus aureu, Zone of inhibition, Plant Extract


Kirby-Bauer Method was utilized to determine the zone of inhibition of the E. indica root extract on the growth of E. coli and S. aureus. The zone inhibition of E. coli and S. aureus was measured for the determination of antibacterial activities of E. indica. Results showed that the three (3) varying concentration of E. indica root extract (40%, 80%, 100%) had a seak activity on the growth of E. coli and S. aureus. Among the three (3) varying concentration , it was observed that the pure concentration (100%) of E. indica extract had the highest inhibition zone against Staphylococcus aureus with a diameter of 8mm, while in Escherichia coli, the highest zone of inhibition was 40% of concentration with a diameter of 7mm. Based from results, the eleusine indica root extract has no significant antibacterial activity against E. coli and S. aureus.

First Advisor

Evelyn D. Segovia