Jesseca Sagayo Bulanit | Efren Ballesteros Cabotage Rachel Poclo Hamadon | Jamal Victorio Lucero
School of Teacher Education
Dr. Dahlia D. Soriano, Adviser
Abstract
The primary objective of the study was to evaluate the antimicrobial property of Telosma procumbens leaf and flower extracts against Staphylococcus aureus and Escherichia coli. The research also determined the optimal inhibitory concentration of the plant extracts. The study utilized a quantitative and experimental type of research. Plant extracts were subjected to Antimicrobial Susceptibility Testing (AST) using Agar Well Diffusion Method to determine the antimicrobial property of the plant extracts against the inoculum. Based on the results of the study, the leaf and flower extracts were susceptible against Staphylococcus aureus and Escherichia coli, respectively. Specifically, the mean zone of inhibition of the leaf extracts against Staphylococcus aureus and Escherichia coli were at 20.67 mm and 23.67 mm, respectively. Meanwhile, the mean zone of inhibition of the flower extracts against Staphylococcus aureus and Escherichia coli were at 16.67 mm and 20.67 mm, respectively. Furthermore, generally, the optimal concentration of the plant extracts was at 50% which means that the mean zone of inhibition was comparable to the antibiotic used which were Vancomycin HCl and Ciprofloxacin for Staphylococcus aureus and Escherichia coli, respectively. There were no significant differences in the antimicrobial activity of Telosma procumbens leaf and flower extracts against Staphylococcus aureus and Escherichia coli. The study shows that indeed Telosma procumbens has an antimicrobial property in consonance to its primary and secondary metabolites such as Flavonoid, Terpenoid, Steroid, and Phenol.
Keywords: Telosma procumbens, Agar Well Diffusion Method, Antimicrobial Susceptibility Testing (AST), Staphylococcus aureus, Escherichia coli
