摘要：The present study aimed to determine antioxidant, antimicrobial activities and oxidative stress properties of the ethanol extracts of Mentha longi;fo-lia L. Hudson subsp. longifolia. Antioxidant activity was determined with the DPPH method. Antimicrobial activity was tested on six different microorganisms (Staphylococcus aureus, Enterococcus fae-calis, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Candida tropicalis) using modified agar dilution method. Total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) were determined using Rel Assay kits. It was observed that DPPH and antimicrobial potentials of plant samples varied based on the locations they were collected. As a result, it was considered that plant samples could be used as natural antioxidant and antimicrobial resources, but suitable regions for OSI values should be selected.
