Table 11.

TEAC values determined against DPPH radicals applied in aqueous acetone (radical solution in methanol) after standard reaction time.

Antioxidant	50% Acn + MeOH 30 min			70% Acn + MeOH 30 min
	A = 0.2 × Ac	A = 0.5 × Ac	A = 0.8 × Ac	A = 0.2 × Ac	A = 0.5 × Ac	A = 0.8 × Ac
gallic acid		2.89		2.23	2.57	2.82
ferulic acid	0.45	0.65	0.80	0.29	0.41	0.51
catechin	0.95	1.39	1.83	0.83	0.96	1.07
quercetin		2.36		2.01	1.01	2.48
propyl gallate		2.24		2.01	2.28	2.44
glutathione	0.11	0.18	0.56	0.03	0.04	0.06
carnosine		~0.0007			N.A. 1
cysteine		0.38			N.A.
histidine		~0.0004			N.A.
ascorbic acid		0.73 2			0.80 2
Trolox		1.00			1.00
phenolic mixture	1.50	1.66	1.91	1.44	1.59	1.84
polar mixture	0.83	0.90	1.08	0.85	0.92	1.10

¹ N.A.—not applicable. ² No non-linear relationship found.