Table 4 The changes of pork lard during storage at 35℃ and 45℃
Temperature | Day | Malonaldehyde | Acid value | Peroxide value | Sensory |
35℃ | 0 | 0.09±0.06e | 0.02±0.01j | 2.91±0.50i | 9.00±0.00a |
1 | 0.14±0.06de | 0.12±0.01i | 2.84±0.20i | 9.00±0.00a |
8 | 0.15±0.05de | 0.14±0.01i | 3.10±0.12i | 8.50±0.75a |
15 | 0.16±0.06de | 0.16±0.01h | 5.82±0.20h | 8.50±0.50a |
22 | 0.16±0.03de | 0.19±0.03g | 7.26±0.32g | 8.50±0.75a |
29 | 0.21±0.01cde | 0.22±0.02f | 10.16±0.32f | 8.25±0.92ab |
36 | 0.22±0.06cde | 0.26±0.01e | 17.99±0.10e | 7.58±0.00bc |
43 | 0.24±0.17bcde | 0.29±0.02d | 17.99±0.18e | 7.58±0.50bc |
50 | 0.35±0.01abcd | 0.29±0.01d | 29.43±0.20d | 7.08±0.00cd |
57 | 0.43±0.05abc | 0.31±0.01c | 29.54±0.18d | 7.00±0.08cd |
64 | 0.47±0.06ab | 0.34±0.02b | 32.96±0.20c | 6.50±0.17de |
71 | 0.57±0.06a | 0.34±0.01b | 43.28±0.18a | 6.00±0.33e |
78 | 0.76±0.01a | 0.54±0.02a | 41.35±0.20b | 5.92±0.58e |
45℃ | 0 | 0.09±0.06g | 0.02±0.01l | 2.91±0.50j | 9.00±0.00a |
1 | 0.16±0.11fg | 0.08±0.01k | 2.99±0.15j | 8.75±0.25ab |
8 | 0.21±0.06ef | 0.11±0.02j | 3.00±0.25j | 7.58±0.42c |
15 | 0.26±0.00e | 0.21±0.01i | 12.54±0.50i | 8.25±0.75bc |
22 | 0.27±0.05e | 0.23±0.02h | 16.67±0.24h | 7.58±0.42c |
29 | 0.47±0.05d | 0.24±0.01g | 34.79±0.46g | 6.75±0.25d |
36 | 0.52±0.01d | 0.28±0.01f | 34.56±0.40g | 6.83±0.17d |
43 | 0.53±0.05d | 0.34±0.01c | 42.01±0.34f | 5.75±0.25e |
50 | 0.64±0.06c | 0.32±0.01d | 57.86±0.15e | 5.25±0.50ef |
7 | 0.84±0.07b | 0.30±0.00e | 62.93±0.34d | 4.75±0.75fg |
64 | 0.91±0.01b | 0.34±0.01c | 63.97±0.15c | 4.50±0.25gh |
71 | 1.16±0.00a | 0.39±0.01b | 85.95±0.34b | 3.88±0.50hi |
78 | 1.22±0.05a | 1.48±0.01a | 115.10±0.15a | 3.50±0.00i |
All values are mean standard deviation of three replicates.
a–l Means within a column with different letters are significantly different (p<0.05).