Table 3.

Showing the antioxidant activity of the essential oil and different extracts of Valeriana jatamansi roots.

S. no.	Test sample	DPPH activity (IC50 in μg/mL)	Chelation power on ferrous ions (% age at 100 μg)
1	Essential oil	876 ± 12.8 μg/mL	31%
2	Methanolic extract	78 ± 2.9 μg/mL	76%
3	Aqueous extract	154 ± 4.6 μg/mL	43%
4	Chloroform extract	—	12%
5	BHT	28 ± 0.8 μg/mL	—

Data is represented as mean ± SD of three triplicate experiments.