Table 3.

Changes in 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity in different beer samples during 15-day force-aging

Times (day)	Beer A (mM TE)	Beer B (mM TE)	Beer C (mM TE)	Beer D (mM TE)
0	2.02 ± 0.13a	1.68 ± 0.10a	0.96 ± 0.05a	0.88 ± 0.03a
3	1.70 ± 0.12b	1.30 ± 0.10b	0.70 ± 0.06b	0.69 ± 0.04b
6	1.37 ± 0.10c	1.01 ± 0.07c	0.44 ± 0.03c	0.40 ± 0.03c
9	0.95 ± 0.09d	0.69 ± 0.10d	0.28 ± 0.02d	0.24 ± 0.01d
12	0.80 ± 0.10de	0.50 ± 0.06e	0.19 ± 0.07d	0.20 ± 0.01d
15	0.76 ± 0.03e	0.50 ± 0.05e	0.21 ± 0.08d	0.18 ± 0.01d

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

TE trolox equivalents