Table 4.

Total phenolics, flavonoids, and antioxidants in the leaf essential oil extracted from Sideritis perforata.

Essential Oil		Positive Control
Essential oil yield (%)	0.30 ± 0.08
Total phenolics (mg GA/g of oil)	0.53 ± 0.01
DPPH IC50 (μg/mL)	17.61 ± 0.40	17.93 ± 2.56 a
ABTS IC50 (μg/mL)	10.10 ± 1.50	26.25 ± 0.41 b
Reducing Power (μg/mL)	22.62 ± 0.61	38.62 ± 0.21 b
β-carotene (AA%)	4.06 ± 0.50	18.10 ± 1.23 a

^a Butylatedhydroxytoluene, ^b Ascorbic acid.