Seasonal Variation in Essential Oils Composition and the Biological and Pharmaceutical Protective Effects of Mentha longifolia Leaves Grown in Tunisia

Table 3

Acetylcholinesterase inhibition capacity represented by IC₅₀ (μg/ml) of essential oils and organics extracts of Mentha longifolia.

Extracts	Percentage of inhibition IC50 (g/ml)
Ml HexF	934± 42.3
Ml EtOH-H2OE	54.25 ± 1.10
Ml EtOAc-F	12.3± 0.71
Ml WF	85.68 ± 3.4
E	21.9± 1.14
E	49.3± 1.56
Galanthamine	19.90 ± 1.48

Averages ± SD were obtained from three different experiments.
Standard drug.
EOw: essential oil extracted at winter season; EOs: spring essential oil.
Values in the same line with different subscript (a > b > c) are significantly different within season (P <0.05).