Exploration of Productivity, Chemical Composition, and Antioxidant Potential of Origanum vulgare L. Grown at Different Geographical Locations of Western Himalaya, India

Table 8

IC₅₀ and EC₅₀ values for antioxidant assays of essential oils (EOs), aqueous extracts (AQ), and methanolic extracts (ALC) of O. vulgare along with the standard (ascorbic acid).

Sample	Antioxidant activity IC50 value (mg/mL)
	DPPH (mg/mL)	ABTS (mg/mL)	Reducing power (mg/mL) (EC50)
OV Auli EO	1.07^f	0.12^c	0.46^i
OV Pithoragarh EO	0.83^e	0.06^b	0.35^e
OV Haldwani EO	1.42^g	0.27^d	1.86^j
OV Auli AQ	0.74^d	0.56^i	0.38^f
OV Pithoragarh AQ	0.49^c	0.44^g	0.33^d
OV Haldwani AQ	0.75^d	0.72^j	0.44^h
OV Auli ALC	0.50^d	0.43^f	0.32^c
OV Pithoragarh ALC	0.39^b	0.32^e	0.29^b
OV Haldwani ALC	0.86^e	0.52^h	0.39^g
Ascorbic Acid	0.052^a	0.032^a	0.027^a

Mean values within a column followed by different letters (a–j) are significantly different at the level of according to Duncan’s multiple test.