Objective To study the effects of different packaging ways on the storage quality of chilled chicken, and to predict the shelf life of optimized chilled chicken. Methods The 817 chilled chicken were treated with different packaging ways such as oxygen permeable film packaging (group 1), air packaging of common polyethylene food bags (group 2), vacuum packaging of heavy-duty nylon food bags (group 3) and vacuum packaging of aluminum foil cooking bags (group 4). The effects of sensory evaluation, meat color, pH, inosine monophosphate (IMP) and free amino acids (FAA) on storage quality of chilled fresh chickens at 4 ℃ were studied. Results The vacuum group was superior to the non-vacuum group in maintaining brightness value (L*), redness value (a*), pH value, IMP and FAA, and had advantages in inhibiting the growth and reproduction of chilled chicken pustlessness bacteria, which increased the shelf life of ordinary packaging from 3-5 days to 7 days. Conclusion The vacuum packaging method of 4 ℃ refrigeration is a better storage method for 817 small white feathers chilled chicken, which can retain its quality and nutrients to the maximum extent, and extend the shelf life to 7 days.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |