Table 2.

Correlation between phenolics, flavonoids and antioxidant activity

		Non-distilled plant materials
		TPC	TFC	1/IC50 DPPH	1/IC50 ABTS	1/EC50 FRAP	1/IC50 SO	1/IC50 Metal chelating ability
Distilled By-product	TPC	1	0.949**	0.965**	0.925**	0.957**	0.914**	0.046
	TFC	0.928**	1	0.920**	0.928**	0.892**	0.888**	0.135
	1/IC50 DPPH	0.902**	0.856**	1	0.979**	0.989**	0.861**	0.078
	1/IC50 ABTS	0.877**	0.792**	0.928**	1	0.959**	0.814**	0.167
	1/EC50 FRAP	0.907**	0.856**	0.997**	0.916**	1	0.854**	0.077
	1/IC50 SO	0.759**	0.703**	0.719**	0.536**	.736**	1	− 0.595**
	1/IC50 Metal chelating ability	− 0.536**	− 0.402*	− 0.445*	− 0.410*	− 0.458*	− 0.787**	1

*Correlation is significant at P = 0.05 level (2-tailed), **Correlation is significant at P = 0.01 level (2-tailed)