Anti-microbial Evaluation of Lagerstroemia speciosa (L.) Pers (Lythraceae) Ethanolic extract of Leaf, Flower and Seed - In Vitro Studies

The aim of this study was to investigate the antibacterial activities of ethanolic extract of Lagerstroemia speciosa. The qualitative phytochemical analysis of ethanolic leaf, flower and seed extracts shows the presence of different types of compounds like terpenoids, tannins, deoxy sugars, saponins, phenolic compounds, and flavonoids, may contribute for the antimicrobial activity. The antibacterial study was carried out by Well diffusion method, Muller Hinton Media and Chloramphenicol (CLP) and Amoxicillin (AMX), standards were tested against different bacterial pathogens, Gram-positive bacteria (Staphylococcus aureus, Enterococcus faecalis), and Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa) by using ethanolic extract. The result revealed that the ethanolic leaf extracts 50µl inhibits Staphylococcus aureus comparable to standard II. The ethanolic flower extracts inhibits the same in standard I. Higher inhibiting activity was shown in the ethanolic seed extracts towards standard I and II.

Pavithran S1 and Sujatha P. S.*2 Click here to download file

Research Article | Published online : 28-Jan-2023