Quality and Acceptability of Fresh and Long-Term Frozen In-Bag Dry-Aged Lean Bull Beef
Table 3
Effect of ageing treatments, ageing time, and frozen storage on the instrumental colour of in-bag dry-aged lean bull beef.
Attributes/storage type
Ageing time
Treatments
SED
AV
SA
SA × AV
storage (7 d ageing)
storage (21 d ageing)
T1
T2
T3
T4
L
Fresh
0 d
33.51x
33.34x
33.05x
32.65x
0.62
0.022
0.588
0.411
7 d
40.78ay
41.28ay
38.54by
21 d
39.80y
39.46z
39.46z
38.85y
ageing time
<0.001
Frozen
7 d
35.99
36.52
35.44
0.97
0.492
0.712
0.926
21 d
36.22
35.86
36.08
36.48
ageing time
0.897
0.678
0.232
a
Fresh
0 d
18.05
18.21x
17.44x
17.47x
0.90
0.797
0.927
0.084
0.004
7 d
15.25y
15.29y
14.62y
21 d
18.45a
18.55ax
17.06abx
16.38bz
ageing time
0.232
<0.001
0.004
0.001
Frozen
7 d
13.37
11.79
13.82
0.81
0.075
0.312
0.742
21 d
13.77
13.02
13.34
13.04
ageing time
0.686
0.303
0.157
b
Fresh
0 d
11.84x
11.74x
11.44
11.31x
0.49
0.059
0.53
0.018
7 d
10.81y
11.39
10.23y
21 d
12.93ay
12.69az
11.98ab
11.44bx
ageing time
0.005
0.001
0.298
0.058
Frozen
7 d
6.56
5.53
6.87
0.58
0.116
0.53
0.471
21 d
7.43
6.93
7.17
6.55
ageing time
0.547
0.154
0.355
Chroma
Fresh
0 d
21.59x
21.68x
20.87x
20.82x
0.99
0.585
0.347
0.047
7 d
18.70y
19.08y
17.84y
21 d
22.54ay
22.48ax
20.86abx
19.98bx
ageing time
0.034
<0.001
0.048
0.005
Frozen
7 d
14.9
13.03
15.44
0.94
0.078
0.994
0.653
21 d
15.66
14.00
15.15
14.6
ageing time
0.888
0.236
0.169
Hue
Fresh
0 d
33.36x
32.85x
33.34x
32.93x
0.75
0.267
0.885
0.775
7 d
35.42y
36.79y
35.01y
21 d
35.25y
34.42z
35.14y
34.95y
ageing time
0.01
<0.001
0.001
Frozen
7 d
26.04
24.89
26.38
1.22
0.401
0.442
0.544
21 d
28.34
27.92
28.2
26.67
ageing time
0.061
0.158
0.755
BD: in-bag dry-ageing; W: wet-ageing; SA: stepwise ageing; AV: air velocity. T1: BD at 0.5 m·s−1 for 21 d; T2: BD at 0.5 m·s−1 7 d + W for 14 d; T3: BD at 1.5 m·s−1 for 7 d + W for 14 d; T4: BD at 2.5 m·s−1 for 7 d + W for 14 d. presented as for level of significance. Different letters of “x, y, or z” within the same column mean results are significantly different from each other (). Different letters of “a, b, or c” within the same row mean results are significantly different from each other ().
