Table 3.

Correlation of IC₅₀ values of different antioxidant activities with total phenolic and total flavonoid contents

Antioxidant activity	TFC	TPC
DPPH radical scavenging activity	0.768*	0.9338***
Hydroxyl radical scavenging activity	0.2861	0.6685*
Iron chelating assay	0.8434**	0.928***
Nitric oxide scavenging activity	0.7935*	0.8966**
Inhibition of β-carotene bleaching	0.883**	0.8472**
Phosphomolybdenum assay	0.7639*	0.8648**
Reducing power assay	0.6725*	0.9055**

^*,**indicate significance at P < 0.05 and P < 0.01, respectively