Table 7.

The principal component (PC) factor loadings and eigenvalues for mineral content, total polyphenol, and antioxidant activity.

Variables	F1	F2
N	0.867	0.056
Ca	0.723	−0.007
Mg	−0.174	0.833
Zn	0.700	0.371
Cu	−0.288	0.730
Mn	−0.348	0.507
Fe	0.390	0.730
P	0.915	0.039
Al	0.386	0.785
TPC	0.649	0.087
TFC	0.788	−0.440
DPPH	0.168	−0.629
Eigenvalue	4.207	3.371
Variability (%)	35.062	28.092
Cumulative %	35.062	63.154