Protective Effect of Selected Medicinal Plants against Hydrogen Peroxide Induced Oxidative Damage on Biological Substrates

Table 2

Relationship ( value) with the antioxidant effect and polyphenol and flavonoid content of plant extracts in microsomes.

	AQ	value	ME	value	80ME	value
Polyphenol; (mg/g)
AnP	63.33 ± 4.71	0.233	88.33 ± 2.35	0.889	41.66 ± 2.35	0.532
CP	25.00 ± 0	0.792	46.66 ± 4.71	0.959	55.00 ± 0	0.964
CS	55.00 ± 0	0.706	51.66 ± 2.35	0.716	63.33 ± 2.35	0.915
AP	81.66 ± 8.49	0.828	83.33 ± 9.42	0.951	120.00 ± 0	0.786
Flavonoid; (mg/g)
AnP	0.59 ± 0.02	0.232	1.87 ± 0.07	0.889	0.96 ± 0.11	0.532
CP	0.01 ± 0	0.790	0.59 ± 0.01	0.941	1.09 ± 0.01	0.957
CS	0.16 ± 0.03	0.669	0.04 ± 0	0.710	0.40 ± 0.06	0.914
AP	1.02 ± 0.08	0.828	2.58 ± 0.10	0.943	1.69 ± 0.02	0.786

Aq: aqueous extract; ME: methanol extract; 80ME: 80% methanol extract;
AnP: Andrographis paniculata, CS: Costus speciosus, CP: Canthium parviflorum, and AP: Abrus precatorius. Values are the mean of triplicates ().