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).