Table 2. Tetracycline degradation constant rate k values at different temperatures.

“k (10−4)”
Time (hour)	4°C	37°C	70°C	100°C
1	20 ± 4a	50 ± 6a	30 ± 6a	60 ± 15a
3	256 ± 32e	400 ± 46e	630 ± 81e	860 ± 61e
6	163 ± 17cd	290 ± 23cd	360 ± 17cd	510 ± 46d
12	116 ± 26c	225 ± 12c	300 ± 26c	340 ± 32c
24	50 ± 8b	135 ± 20b	160 ± 18b	160 ± 02b

Different letters indicate statistically significant differences at P < 0.05 according to a Tukey’s honest significant difference post hoc test. Values are mean ± standard errors of triplicate samples.