Table 7. Thiobarbituric acid reactive substances of broiler breast meat during freezing storage at −18°C for 180 days.
| Storage days | Thiobarbituric acid reactive substances (mg MDA/kg of meat) | |||||
|---|---|---|---|---|---|---|
| T1 | T2 | T3 | T4 | T5 | T6 | |
| 0 | 0.21±0.01U | 0.20±0.01U | 0.18±0.01U | 0.17±0.01U | 0.15±0.01U | 0.13±0.01U |
| 30 | 2.35±1.7O-R | 2.29±0.1O-S | 2.08±0.06Q-T | 1.64±0.04R- T | 1.37±0.1ST | 1.22±0.05T |
| 60 | 3.60±0.1J-N | 3.34±0.04L-N | 3.08±0.07M-P | 2.70±0.05N-Q | 2.20±0.08P-S | 2.05±0.02Q-T |
| 90 | 4.44±0.04E-K | 4.15±0.01H-L | 4.02±0.1I-M | 3.51±0.2K-N | 3.20±0.1M-O | 2.95±0.05N-Q |
| 120 | 5.27±0.3B-E | 5.04±0.2C-H | 4.94±0.2C-I | 4.64±0.08D-I | 4.45±0.07E-J | 4.26±0.02G-L |
| 150 | 5.55±0.05B-D | 5.37±0.04B-E | 5.14±0.04B-G | 4.57±0.1E-I | 4.29±0.04F-K | 4.01±0.6I-M |
| 180 | 6.66±0.03A | 6.06±0.01AB | 5.84±0.03A-C | 5.35±0.05B-E | 5.22±0.03B-F | 4.56±0.07E-I |
T1, basal feed (control); T2, 50 mg bioactive peptides/kg of feed; T3, 100 mg bioactive peptides/kg of feed; T4, 150 mg bioactive peptides/kg of feed; T5, 200 mg bioactive peptides/kg of feed, T6, 250 mg bioactive peptides/kg of feed.
Mean values with different superscripts differ significantly.
All values expressed as mean±SD (n=3).