Table 2: Evaluation of cytotoxicity by MTT assay in cell lines after 24 h.

Cell lineIC50 (μg/mL)

J774A.1 >300>300
HeLa >300>300>300

Legend: YLEO: young leaves essential oil; ALEO: adult leaves essential oil; IC50: concentration that reduces the mitochondrial activity by 50%. The results are shown as mean ± SD from three independent experiments.