. 2019 Nov 14;5(11):e02762. doi: 10.1016/j.heliyon.2019.e02762

Table 3.

Phytochemicals, antioxidant and metal chelating capacity in aqueous extract of T. tetraptera.

Sample	Phytochemical				AA (mg AAE/g)	MCC (% EDTA)
Sample	Phenols (mg GAE/g)	Flavonoids (mg QE/g)	Saponins (mg DE/g)	Alkaloids (%w/w)	AA (mg AAE/g)	MCC (% EDTA)
Pulp	1.40 ± 0.10^a	0.67 ± 0.03^a	3.65 ± 0.03^a	4.23 ± 0.15^a	0.41 ± 0.00^a	4.10 ± 4.76^a
Seeds	0.15 ± 0.05^b	0.27 ± 0.03^b	1.23 ± 0.03^b	1.30 ± 0.20^b	0.15 ± 0.01^b	2.12 ± 4.06^b
W. fruit	0.94 ± 0.09^c	0.61 ± 0.03^a	2.50 ± 0.04^c	3.93 ± 0.15^a	0.22 ± 0.02^c	3.20 ± 2.80^bc
P-value	0.0293	0.0412	0.0215	0.0315	0.0442	0.0331

GAE= Gallic acid equivalent, QE= Quercetin equivalent, DE=Diosgenin equivalent, w=Weight. AA= Antioxidant activity, MCC= Metal chelating capacity, AAE= Ascorbic acid equivalent, W. fruit = Whole fruit. Each value is presented as mean ± standard deviation. Means in a column with the same letter superscripts are not significantly different (P > 0.05, Tukey's test), whereas those with different letter superscripts are significantly different (P < 0.05, Tukey's test).