In Vitro Ion Chelating, Antioxidative Mechanism of Extracts from Fruits and Barks of Tetrapleura tetraptera and Their Protective Effects against Fenton Mediated Toxicity of Metal Ions on Liver Homogenates

Table 1

Total phenol, flavonoid, and flavonol contents of the plant extracts.

Samples	Phenolic composition
	Total phenols (CAE/g dried extract)	Flavonoids (QE/g dried extract)	Flavonols (QE/g dried extract)
CEH	30.56 ± 1.06^a	6.31 ± 1.00^a	1.56 ± 0.01^a
CFH	37.24 ± 2.00^b	11.36 ± 1.88^b	3.95 ± 0.39^b
CEE	26.65 ± 0.01^c	5.22 ± 1.12^a	1.55 ± 0.02^a
CFE	29.46 ± 1.19^d	10.38 ± 1.77^b	3.90 ± 0.57^b

Values are expressed as mean ± SD of three replicates. In the same concentration the values affected with different letter are significantly different at ; CEH: T. tetraptera hydroethanolic extract (bark); CFH: T. tetraptera hydroethanolic extract (fruit); CEE: T. tetraptera ethanolic extract (bark); CFE: T. tetraptera ethanolic extract (fruit); CAE: caffeic acid equivalent; QE: quercetin.