Table 2.
Physicochemical and color parameters (mean ± standard deviation) of deer burgers during chilled storage.
| C | Lva | Lvb | Lpa | Lpb | |
|---|---|---|---|---|---|
| pH | |||||
| Day 0 | 5.66 ± 0.01 d,w | 5.22 ± 0.08 c,x | 4.78 ± 0.02 a,y | 5.16 ± 0.02 c,w | 4.91 ± 0.02 b,x |
| 4 | 5.45 ± 0.01 c,x | 5.14 ± 0.02 b,x | 4.94 ± 0.07 a,x | 5.12 ± 0.01 b,x | 4.90 ± 0.07 a,x |
| 8 | 5.19 ± 0.02 c,y | 4.86 ± 0.02 b,y | 4.70 ± 0.07 a,y | 4.80 ± 0.02 a,b,y | 4.73 ± 0.08 a,y |
| 12 | 5.03 ± 0.02 c,z | 4.73 ± 0.04 b,z | 4.54 ± 0.02 a,z | 4.75 ± 0.01 b,z | 4.55 ± 0.05 a,z |
| Moisture (%) | |||||
| Day 0 | 69.65 ± 1.02 c | 66.37 ± 0.00 a,b | 65.21 ± 0.83 a | 67.71 ± 0.90 b | 65.04 ± 0.56 a |
| 4 | 67.22 ± 1.03 | 67.02 ± 0.68 | 66.36 ± 0.33 | 68.10 ± 0.68 | 66.28 ± 0.83 |
| 8 | 67.85 ± 0.65 b | 66.84 ± 0.29 a,b | 65.14 ± 1.41 a | 66.20 ± 0.88 a,b | 65.70 ± 0.61 a |
| 12 | 69.63 ± 1.47 c | 67.18 ± 0.26 b | 64.86 ± 0.65 a | 67.00 ± 0.57 b | 66.13 ± 0.12 a,b |
| L* | |||||
| Day 0 | 47.60 ± 0.75 a,z | 48.72 ± 0.34 a,z,y | 51.28 ± 1.44 b,z,y | 47.21 ± 1.73 a,z | 51.44 ± 0.88 b,y |
| 4 | 49.49 ± 1.36 a,b,z | 50.79 ± 1.04 b,y | 52.94 ± 0.46 c,y | 48.73 ± 0.26 a,z,y | 51.13 ± 0.72 b,y |
| 8 | 48.60 ± 2.08 z | 47.44 ± 1.27 z | 48.80 ± 1.04 z | 47.14 ± 1.56 z | 48.48 ± 1.50 z |
| 12 | 53.63 ± 2.58 y | 50.32 ± 0.66 y | 52.67 ± 2.34 y | 50.64 ± 0.83 y | 52.57 ± 0.77 y |
| a* | |||||
| Day 0 | 13.30 ± 0.96 c,x | 7.27 ± 0.41 a,b,y | 6.38 ± 0.18 a,y | 7.60 ± 0.22 b,y | 6.26 ± 0.41 a,y |
| 4 | 7.90 ± 0.60 c,y | 5.41 ± 0.51 a,b,z | 5.05 ± 0.31 a,z | 6.24 ± 0.25 b,z | 6.00 ± 0.12 b,y |
| 8 | 4.90 ± 0.53 z | 4.85 ± 1.00 z | 4.95 ± 0.09 z | 6.15 ± 0.45 z | 4.40 ± 1.10 z |
| 12 | 4.65 ± 0.15 a,z | 6.00 ± 0.25 b,z | 4.99 ± 0.91 a,b,z | 5.62 ± 0.46 a,b,z | 5.46 ± 0.07 a,b,z,y |
| b* | |||||
| Day 0 | 19.75 ± 0.58 y | 19.77 ± 0.56 y | 20.13 ± 0.86 z | 19.66 ± 0.93 z | 20.82 ± 0.73 y |
| 4 | 17.64 ± 0.64 a,b,z | 17.07 ± 0.77 a,z | 19.14 ± 0.52 b,z | 18.18 ± 0.59 a,b,z | 18.96 ± 0.47 b,z |
| 8 | 27.18 ± 0.53 b,x | 26.27 ± 0.47 b,x | 27.13 ± 0.63 b,y | 24.69 ± 0.61 a,y | 26.89 ± 0.80 b,x |
| 12 | 20.18 ± 0.61 b,y | 18.05 ± 0.47 a,z | 19.92 ± 0.77 b,z | 18.87 ± 0.59 a,b,z | 19.38 ± 0.40 b,z |
C: sodium ascorbate control; Lva: 2.5% “verdejo” lees; Lvb: 5% “verdejo” lees; Lpa: 2.5% “palomino” lees; Lpb: 5% “palomino” lees. Means within a row with different superscript letters (a–d) are significantly different (p < 0.05) as a function of sample. Means within a column with different superscript letters (z–w) are significantly different (p < 0.05) as a function of storage.