Table 5. Correlation coefficients between antioxidant capacities (DPPH, ABTS, TPC, TFC), and amino acids (GABA, TA, EA) according to germination days of brown rice

DPPH1) ABTS TPC TFC GABA TA EA
DPPH 1 0.611***2) 0.178 0.256 0.715*** 0.720*** 0.676***
ABTS 1 −0.160 0.075 0.633*** 0.656*** 0.672***
TPC 1 0.757*** 0.427** 0.381** 0.355*
TFC 1 0.480** 0.400** 0.343*
GABA 1 0.985*** 0.963***
TA 1 0.991***
EA 1
DPPH, 1,1-diphenyl-2-picrylhydrazyl; ABTS, 2,2’-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid); TPC, total phenolic content; TFC, total flavonoid content; GABA, γ-aminobutyric acid; TA, total aminoacid; EA, essential amino acid (Thr+Lys+Met+Val+Ile+Leu+Phe).
*Significant at p<0.05; **significant at p<0.01; ***significant at p<0.001.