Table 5.

Antioxidant activity of different tree parts of P. curatellifolia.

Plant part	Extraction solvent	Observed Effects	References
Stem bark	20 % Ethanol-Diethyl ether-n Butanol	•DPPHa IC50 - 5.9 mg/mL	[5]
Fruit pulp	80 % Methanol	•FRAPb - 9.5 mmol TEAC/g •DPPH IC50 - 14.2 μg/mL •High α-glucosidase inhibition	[6]
	Aqueous, 80 % Methanol	•FRAP – 113.9 ± 5.5 mg TEAC/100 g fruit weight (FW) •TAAc - 128:6 ± 0.6 mg AAE/g FW •DPPH – 26 %	[19]
	Aqueous	•FRAP - 70.8 ± 1.8 mg TEAC/100 g FW •TAA - 80:5 ± 0.2 mg AAE/g FW •DPPH – 87 %
Peel	–	•DPPH scavenging activity ↑ from 48.7 to 94.7 % •FRAP reducing activity ↑ 108.3 mg–162.7 mg GAE/g	[70]
Leaf	Ethanol	•DPPH - 18 μg/mLf •TMAMQd – 16 μg/mLf	[44]
	Ethanol	•Nitrite radical scavenging activity – 103 μg/mL	[43]
Aerial parts	70 % Methanol	•DPPH - IC50 0.2 ± 0.01 μg/mL	[21]
Seed	80 % Methanol	•Angiotensin converting enzyme inhibition IC50 – 13.4 μg/mL	[7]
	Ethanol	•DPPH radical scavenging activity range - 17–68 % •FRAP - 13.9 mg/g ascorbic acid eq. •H2O2 radical scavenging activity range - 76–97 %	[82]
	Aqueous	•DPPH radical scavenging EC50 – 3.8 mg/mL •OH· radical scavenging activity EC50 – 3.1 mg/mL •Inhibition of Fe2+-induced MDAe production EC50 – 0.3 mg/mL	[31]

^a- 2,2-diphenyl-1-picrylhydrazyl inhibition assay.

^b- Ferric ion reducing antioxidant power assay.

^c– Total Antioxidant Activity assay.

^d-Tetramethoxy azobismethylene quinone free-radical scavenging.

^e– Malondialdehyde.

^f- concentration that quenched 100 % of radicals.