Research Article

Antioxidant Activity and Volatile and Phenolic Profiles of Essential Oil and Different Extracts of Wild Mint (Mentha longifolia) from the Pakistani Flora

Table 3

Antioxidant activity of M. longifolia essential oil and n-hexane, dichloromethane, and methanol extracts.

SamplesAntioxidant activity*
DPPH, IC50,
(µg mL−1)
Inhibition of linoleic
acid peroxidation (%)

Essential oil21.8 ± 1.2c37.3 ± 1.3c
n-Hexane extract33.3 ± 1.7d9.9 ± 0.7a
DCM extract 21.2 ± 1.7c89.3 ± 2.9d
Methanol extract6.70 ± 0.3a91.6 ± 2.3d
Piperitenone22.7 ± 1.5c31.3 ± 2.1b
BHT9.90 ± 0.2b90.9 ± 2.7d

*Values are mean standard deviation of three samples of each Thymus species, analyzed individually in triplicate. Mean followed by different superscript letters in the same column represents significant difference ( ).
NT: not tested.