GC/MS Evaluation and In Vitro Antioxidant Activity of Essential Oil and Solvent Extracts of an Endemic Plant Used as Folk Remedy in Turkey: Phlomis bourgaei Boiss.

Table 3

Scavenging effect (%) on 1,1-diphenyl-2-picrylhydrazyl of the essential oil and the extracts from P. bourgaei at different concentrations^a.

Sample	Sample concentration (mg/mL)
	0.4	1.0	2.0
Essential oil	2.02±0.90	4.45±0.36	9.02±0.45
Hexane	2.33±0.22	3.44±0.28	8.37±0.53
Ethyl acetate	20.68±0.53	36.68±0.01	73.33±2.13
Methanol	18.24±0.11	35.08±0.03	82.21±1.37
Water	90.42±0.28	88.68±0.06	86.90±0.45
BHT	93.85±1.59
BHA	96.12±1.17

aValues expressed are means ± S.D. of three parallel measurements.