BioMed Research International / 2013 / Article / Tab 2

Research Article

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.

SamplesDPPH assay (EC50 value)1DPPH assay (%)2FRAP assay3ABTS assay4

80% methanol
Flesh58.0 ± 2.0b85.4 ± 1.3a16.6 ± 3.8a32.7 ± 8.5a
Peel72.7 ± 2.5a68.9 ± 0.9b14.8 ± 0.4a22.6 ± 1.9a,c

Flesh62.7 ± 3.1b67.9 ± 3.6b14.8 ± 1.6a20.0 ± 1.0b,c
Peel76.7 ± 1.2a61.5 ± 0.4b12.0 ± 1.0a 18.2 ± 0.1b,c

Values are presented as mean ± SD ( ) which, with different letters (within column), are significantly different at .
1DPPH free-radical scavenging activity was expressed as EC50 ( g/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.

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