Ex Vivo Antioxidant Activity of Selected Medicinal Plants against Fenton Reaction-Mediated Oxidation of Biological Lipid Substrates

Table 1

Correlation between the antioxidant activity of plant extracts against cholesterol oxidation and the content of polyphenol and flavonoid in the extracts.

	M	-value	80M	-value
Polyphenol; (mg/g)
AnP	88.33 ± 2.35	0.816	41.66 ± 2.35	−0.617
CS	51.66 ± 2.35	−0.459	63.33 ± 2.35	0.652
CP	46.66 ± 4.71	−0.040	55.00 ± 0	−0.040
AP	83.33 ± 9.42	−0.968	120.00 ± 0	0.508
Flavonoid; (mg/g)
AnP	1.87 ± 0.07	0.816	0.96 ± 0.11	−0.617
CS	0.04 ± 0	−0.439	0.40 ± 0.06	0.655
CP	0.59 ± 0.01	−0.02	1.09 ± 0.01	−0.000
AP	2.58 ± 0.10	−0.973	1.69 ± 0.02	0.508

Values are mean of triplicates (); M: methanol extract; 80M: 80% methanol extract; -value: ; AnP: Andrographis paniculata; CS: Costus speciosus; CP: Canthium parviflorum; AP: Abrus precatorius.