Phytochemical screening and antibacterial property of Perilla frutescens (perilla mint) leaf extract against Escherichia coli

Meagan Erica T. Besa
Rianne Danielle P. Javinal
Patrcia Camille D. Jonson


The study aims to identify and test the efficacy of the leaves of Perilla frutescens’ antibacterial property on Escherichia coli. Moreover, the study aims to identify the phytochemical contents of Perilla frutescens’ leaf extract. It also aims to determine the sensitivity of Escherichia coli to its antibacterial property and determine if there is a difference with using different concentrations, 50%, 75% and 100%. The study focuses on doing an experiment to take the phytochemical contents and antibacterial property from the leaves of Perilla frutescens and test it on Escherichia coli.

However, the study is limited only to the leaves of the said plant. Stem barks, roots, flowers and other parts of Perilla frutescens are irrelevant in this study. The study do include the phytochemical contents but will not further explore on each content except on the antibacterial property. Furthermore, the study excludes the use of other microorganisms to be tested on except Escherichia coli. It also excludes the effects of both the Escherichia coli and Perilla frutescens.