Table 3.

Spearman correlation matrix of the measured parameters

	p values
	Bitterness	Original extract content	Ethanol	Energy	DPPH	CUPRAC	ABTS	FRAP	TPC	Folic acid content
Spearman r-values
Bitterness	1	0.068	0.061	0.070	0.061	0.014	0.633	0.056	0.041	0.164
Original extract content	0.295	1	<0.0001	<0.0001	0.001	<0.0001	0.004	<0.0001	<0.0001	0.005
Ethanol	0.303	0.918	1	<0.0001	0.001	<0.0001	0.002	<0.0001	<0.0001	0.016
Energy	0.293	1.000	0.918	1	0.001	<0.0001	0.004	<0.0001	<0.0001	0.005
DPPH	0.303	0.512	0.520	0.520	1	<0.0001	0.014	<0.0001	<0.0001	0.016
CUPRAC	0.392	0.775	0.813	0.778	0.752	1	0.001	<0.0001	<0.0001	0.005
ABTS	0.079	0.454	0.483	0.452	0.392	0.512	1	0.000	0.000	0.002
FRAP	0.309	0.785	0.815	0.788	0.751	0.977	0.584	1	<0.0001	<0.0001
TPC	0.329	0.811	0.822	0.815	0.702	0.975	0.540	0.970	1	0.004
Folic acid content	−0.227	0.446	0.385	0.448	0.385	0.446	0.495	0.541	0.456	1

Values in bold are different from 0 with a significance level α = 0.05