Research Article

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

Table 2

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

M-value80M-value

Polyphenol
(mg/g)
 AnP88.33 ± 2.350.94841.66 ± 2.35−0.761
 CS51.66 ± 2.350.41463.33 ± 2.35−0.034
 CP46.66 ± 4.71−0.95855.00 ± 00.776
 AP83.33 ± 9.42−0.934120.00 ± 00.840
Flavonoid
(mg/g)
 AnP1.87 ± 0.070.9480.96 ± 0.11−0.761
 CS0.04 ± 00.5010.40 ± 0.06−0.076
 CP0.59 ± 0.01−0.9571.09 ± 0.010.800
 AP2.58 ± 0.10−0.9401.69 ± 0.020.840

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.