Abstract
Three techniques, hydro distillation, steam distillation and microwave-assisted distillation, was used in this work to extract volatile secondary metabolites essential oils (EOs), from the aerial part of Mentha citrata Ehrh., plant (steams, leaves and flowers). The plant material was collected from a location called El-kobna in El-Oued province, southern Algeria during June 2018. The extracted Mentha citrata EOs, were analyzed using both gas chromatography coupled with flame ionization detector and gas chromatography attached with mass spectrometry detector techniques. The antioxidant activity of these EOs were evaluated in vitro using DPPH (2,2-diphenyl-1-picrylhydrazyl) free radicals scavenging activity and cytotoxic test. The results of the EOs analysis showed large variability of the chemical compositions for all techniques. Moreover, a promising cytotoxic activity on colon cancer cells was found.
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