Chemical Composition and Antibacterial and Antioxidant Activities of Stem Bark Essential Oil and Extracts of Solanecio gigas

Table 7

Percentages and IC₅₀ values (μg/ml) for radical scavenging activity of EO and extracts (mean ± standard deviation).

Concentration (μg/ml)	EO	AA	MeOH
10	73.4 ± 0.36	55.7 ± 0.15	58.1 ± 0.31
50	76.1 ± 0.15	60.3 ± 0.21	65.9 ± 0.2
100	78.1 ± 0.15	75.3 ± 0.2	77.1 ± 0.31
500	88.2 ± 0.81	87.9 ± 0.1	95.4 ± 0.50
1000	91.5 ± 0.15	89.8 ± 0.2	97.9 ± 0.2
IC50 value	13.8 ± 0.48	4.7 ± 0.02	4.2 ± 0.04