Table 1

Influence of thiobarbituric acid (TBA) reaction time on antioxidant activity (AOA)

Time (min)	K₁ − K₀	A₁ − A	UA₁ − UA₀	AOA (mmol/l)
K₁ − K₀, absorbance of control; A₁ − A, absorbance of sample; UA₁ − UA₀, absorbance of 1 mM uric acid.
10	0.233	0.103	0.152	1.6
20	0.288	0.112	0.178	1.6
30	0.344	0.123	0.206	1.6
40	0.396	0.132	0.231	1.6
50	0.445	0.139	0.254	1.6
60	0.492	0.146	0.276	1.6