Table 4.

Correlation between antioxidant activities and total phenolic and flavonoid content

	Correlation R2
IC50 values	Phenolics	Flavonoids
IC50 of scavenging ability on DPPH radicals	0.7100a	0.8551b
IC50 of scavenging ability on superoxide radicals	0.6253	0.8130a
IC50 of phosphomolybdate assay	0.4562	0.1339
IC50 of scavenging ability on hydroxyl radicals	0.7329a	0.5616
IC50 of scavenging ability on hydrogen peroxide	0.1991	0.1610
IC50 of scavenging ability on ABTS radicals	0.5373	0.9413b

^{a, b} Indicate significance at p <0.05 and p <0.01 respectively