Table 3.

S. corsica essential oils DPPH scavenging activity.

5 mg/mL essential oil DPPH scavenging activity
S. corsica (1)*	10.2% ± 0.03
S. corsica (2)*	7.5% ± 0.02
S. corsica (3)*	9.7% ± 0.04
Catechin
1.4 mg/mL essential oil DPPH scavenging activity
S. corsica (1)*	7.3% ± 0.02
S. corsica (2)*	4.3% ± 0.08
S. corsica (3)*	3.4% ± 0.06
Catechin (1 mg/mL)**	81.2% ± 0.05

^*Note: number 1, 2 and 3 identified the different collecting altitudes: station 1 = 500 m above sea level; station 2600 m above sea level; station 3 = 800 m above sea level).

^**Catechin has been used as reference substance.