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 2

Representation of the level of phenolic compounds in the different plant parts.

Phenol standards	Standard retention time	T. tetraptera (fruits)		T. tetraptera (barks)
Characteristics	T.R (Decker #547)	(mUA)	Conc. (mg/g DW)	(mUA)	Conc. (mg/g DW)
3.4-OH benzoic acid	19.10 ± 00	00 ± 00	00 ± 00	226.00 ± 00	8.91 ± 00
Apigenin	33.49 ± 00	39.16 ± 00	0.01 ± 00	841.09 ± 00	0.21 ± 00
Caffeic acid	25.67 ± 00	1210.83 ± 00	22.72 ± 00	38.34 ± 00	0.72 ± 00
Catechin	23.48 ± 00	785.99 ± 00	57.13 ± 00	223.34 ± 00	16.23 ± 00
Eugenol	29.43 ± 00	3316.70 ± 00	958.81 ± 00	564.46 ± 00	163.18 ± 00
Gallic acid	14.38 ± 00	383.80 ± 00	9.84 ± 00	148.70 ± 00	3.81 ± 00
O-Coumaric acid	25.11 ± 00	1357.50 ± 00	41.91 ± 00	487.81 ± 00	15.06 ± 00
OH-tyrosol	21.91 ± 00	737.50 ± 00	68.13 ± 00	88.6 ± 00	8.18 ± 00
P-Coumaric acid	30.52 ± 00	2595.24 ± 00	50.82 ± 00	1078.95 ± 00	21.13 ± 00
Quercetin	42.19 ± 00	3765.61 ± 00	353.78 ± 00	360.40 ± 00	33.86 ± 00
Rutin	29.45 ± 00	2500.70 ± 00	210.54 ± 00	231.55 ± 00	19.50 ± 00
Syringic acid	25.55 ± 00	1210.83 ± 00	30.02 ± 00	00 ± 00	00 ± 00
Theobromine	17.35 ± 00	643.97 ± 00	21.59 ± 00	74.21 ± 00	2.49 ± 00
Tyrosol	21.77 ± 00	2072.02 ± 00	121.05 ± 00	215.35 ± 00	12.58 ± 00
Vanillic acid	25.27 ± 00	1129.18 ± 00	36.07 ± 00	266.50 ± 00	8.51 ± 00

Conc.: concentration; DW: dried weight; T.R: retention time; : area.