. 2010 Aug 24;15(8):5807–5817. doi: 10.3390/molecules15085807

Table 3.

Antioxidant activity of P. sepium essential oil and 2-hydroxy-4-methoxy benzadehyde.

Assay	IC₅₀ (mg/mL)
Assay	P. sepium oil	2-Hydroxy-4-methoxy- benzaldehyde	Positive control^a
DPPH inhibition	8.56 ± 0.14^b	9.04 ± 0.09	0.0257 ± 0.0004
β-Carotene bleaching	0.37 ± 0.01	0.25 ± 0.01	0.0315 ± 0.0007
Ferrozine-Fe²⁺ complex formation	2.11 ± 0.05	2.31 ± 0.02	0.0185 ± 0.0001

^a: The positive controls for DPPH inhibition, β-carotene-linoleic acid and ferrous ions assays were BHT, BHT and EDTA, respectively. ^b: Mean ± standard deviation for triplicate experiments.