Table 1.

Correlation coefficients between the total phenolic contents and antioxidants as well as HeLa and MCF-7 cell proliferation.

	Total Phenolic Contents (Correlation R2)
Assays	DPPH	Hydroxyl	Lipid Peroxide	TAC	FRPC	MTT assay in HeLa cells	MTT assay in MCF-7 cells
CME	0.55856	0.93479**	0.89227*	0.9888***	0.90741*	0.99414*	–
PEF	1.9483	0.97567**	0.9105*	0.92046**	0.97598**	0.92154	–
CHF	0.14652**	0.95742**	0.88646*	0.97608**	0.99748***	0.99996**	–
EAF	0.0808	0.66511	0.8493*	0.99566***	0.88279*	0.97599	0.90977*
AQF	0.8171	0.94858**	0.85996*	0.99387***	0.99265***	0.97742	–

Here, *P < 0.05, **P < 0.01 and ***P < 0.001 indicate a moderate, strong and extremely strong positive correlation, respectively. Where DPPH assay = 2,2-diphenyl-1-picrylhydrazyl assay, TAC = total antioxidant capacity, FRPC = ferric-reducing power capacity and MTT assay = 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay.