Phytochemicals Content, Antioxidant Activity and Acetylcholinesterase Inhibition Properties of Indigenous Garcinia parvifolia Fruit

Table 2

Antioxidant properties of extracts of different parts of the fruit of G. parvifolia, assessed by three different assays.

Samples	DPPH assay (EC50 value)^1	DPPH assay (%)^2	FRAP assay^3	ABTS assay^4
80% methanol
Flesh	58.0 ± 2.0^b	85.4 ± 1.3^a	16.6 ± 3.8^a	32.7 ± 8.5^a
Peel	72.7 ± 2.5^a	68.9 ± 0.9^b	14.8 ± 0.4^a	22.6 ± 1.9^a,c
Aqueous
Flesh	62.7 ± 3.1^b	67.9 ± 3.6^b	14.8 ± 1.6^a	20.0 ± 1.0^b,c
Peel	76.7 ± 1.2^a	61.5 ± 0.4^b	12.0 ± 1.0^a	18.2 ± 0.1^b,c

Values are presented as mean ± SD (𝑛=3) which, with different letters (within column), are significantly different at 𝑃<0.05.
¹DPPH free-radical scavenging activity was expressed as EC₅₀ (𝜇g/mL).
²DPPH free-radical scavenging activity percentage in mg sample (%).
³FRAP was expressed as mM ferric reduction to ferrous in 1 g of dry sample.
⁴ABTS free-radical scavenging activity was expressed as mg ascorbic acid equivalent antioxidant capacity (AEAC) in 1 g of dry sample.