Table 4.

Changes in ferric reducing antioxidant power (FRAP) value in different beer samples during 15-day force-aging

Times (day)	Beer A (mM Fe2+)	Beer B (mM Fe2+)	Beer C (mM Fe2+)	Beer D (mM Fe2+)
0	3.01 ± 0.05a	2.40 ± 0.15a	1.86 ± 0.08a	1.79 ± 0.09a
3	2.51 ± 0.06b	1.97 ± 0.16b	1.50 ± 0.10b	1.24 ± 0.04b
6	2.24 ± 0.06c	1.64 ± 0.12c	1.10 ± 0.06c	0.96 ± 0.03c
9	2.02 ± 0.12d	1.39 ± 0.09d	0.89 ± 0.05d	0.70 ± 0.07d
12	1.89 ± 0.13e	1.10 ± 0.10e	0.90 ± 0.03d	0.57 ± 0.03e
15	1.86 ± 0.14e	1.01 ± 0.10e	0.79 ± 0.04d	0.58 ± 0.02e

Values are the means ± standard deviations of triplicate measurements. Means in a column that does not share the same alphabetical letter represent significant differences at p < 0.05