Table 10 Appearance of beef burger affected by anthraquinone pigment (AQP) and γ- irradiation during cold storage (4 ± 1ºC)
Storage Period (day) | Treatments | ||||||
|---|---|---|---|---|---|---|---|
control | Anthraquinon concentration (%) | BHT (200 ppm) | γ- irradiation (kGy) | ||||
0.5 | 1.0 | 2.0 | 3 | 5 | |||
0 | 9.30Aa  ± 0.483 | 9.20Aab  ± 0.422 | 9.18 Aab  ± 0.336 | 8.83Ab  ± 0.585 | 9.25 Aab  ± 0.425 | 9.10 Aab  ± 0.568 | 8.90 Aab  ± 0.316 |
3 | 8.51Ba  ± 0.517 | 8.61 Ba  ± 0.458 | 8.82 Aa  ± 0.382 | 8.73 Aa  ± 0.442 | 8.75 Aa  ± 0.717 | 8.70 ABa  ± 0.675 | 8.70 Aa  ± 0.483 |
6 | 6.74 Cc  ± 0.795 | 7.44 Cb  ± 0.685 | 7.56 Bb  ± 0.685 | 8.21Bb  ± 0.612 | 7.35 Bf  ± 0.474 | 8.20 BCa  ± 0.632 | 8.77Aa  ± 0.416 |
9 | 3.52De  ± 0.812 | 5.17Dd  ± 0.596 | 6.64Cc  ± 0.479 | 7.81Cb  ± 0.910 | 5.58Cd  ± 0.689 | 7.70Db  ± 0.675 | 8.54 Aa  ± 0.499 |
12 |  | 2.82Ecd  ± 0.382 | 5.33Db  ± 0.667 | 7.13 Da  ± 0.693 | 3.05Dc  ± 0.599 | 2.40Ed  ± 0.699 | 7.63Ba  ± 0.914 |
15 |  |  | 3.41Ec  ± 0.509 | 5.62Eb  ± 0.683 |  |  | 6.96Ca  ± 0.951 |
18 |  |  |  | 3.21Fb  ± 0.612 |  |  | 6.28 Da  ± 0.934 |
21 |  |  |  |  |  |  | 5.31 Ea  ± 0.922 |
24 |  |  |  |  |  |  | 4.19 Fa  ± 0.637 |