Table 5. Changes in pH, 2-thiobarbituric acid (TBA), volatile basic nitrogen (VBN), and total microbial count (TMC) during storage of grape pomace-marinated pork loin
Items | Storage day | Treatments1) |
|
CON | T1 | T2 | T3 | T4 | T5 |
pH | 0 | 5.86±0.02a | 5.53±0.02c | 5.50±0.05c | 5.66±0.02b | 5.66±0.01b | 5.53±0.03c |
5 | 5.81±0.01a | 5.61±0.01b | 5.49±0.03c | 5.58±0.01b | 5.50±0.00c | 5.44±0.01d |
10 | 5.68±0.00a | 5.28±0.01d | 5.29±0.01d | 5.48±0.01b | 5.37±0.00c | 5.47±0.02b |
TBA (mg MA/kg) | 0 | 0.20±0.01b | 0.21±0.00b | 0.25±0.00a | 0.10±0.00d | 0.12±0.00c | 0.11±0.00cd |
5 | 0.24±0.00b | 0.16±0.00cd | 0.28±0.00a | 0.14±0.00d | 0.18±0.04cd | 0.19±0.03c |
10 | 0.19±0.01b | 0.23±0.02a | 0.27±0.04a | 0.14±0.02c | 0.17±0.00bc | 0.16±0.02bc |
VBN (mg%) | 0 | 17.57±0.72a | 15.37±0.27b | 15.09±0.38b | 13.72±0.82cd | 13.54±0.57d | 14.82±0.72bc |
5 | 19.58±0.41a | 14.64±0.15cd | 15.83±0.27b | 14.04±0.19d | 14.55±0.41cd | 15.37±1.14bc |
10 | 23.88±0.95a | 18.11±1.94c | 18.39±0.27c | 20.72±2.91bc | 22.42±0.57ab | 19.85±1.14bc |
TMC (Log CFU/g) | 0 | 3.65±0.10b | 3.54±0.05b | 3.48±0.01b | 4.03±0.17a | 3.49±0.13b | 3.62±0.04b |
5 | 4.47±0.02a | 4.08±0.06c | 3.73±0.09d | 4.32±0.00b | 4.01±0.04c | 3.79±0.05d |
10 | 5.13±0.00a | 3.34±0.02c | 2.99±0.21d | 4.77±0.01b | 4.63±0.03b | 3.30±0.03c |