Objective To investigate the effects of low-temperature plasma-activated water (PAW) with varying treatment durations (5, 10, 15 minutes) on the quality of cold fresh Siniperca chuatsi slices. Methods This article used 0.15% lactic acid solution as the sterilization medium to soak cold fresh Siniperca chuatsi slices in PAW for 5, 10 and 15 minutes. The untreated samples served as the control group, refrigerated at 4 ℃. The pH, total bacterial count, total volatile base nitrogen (TVB-N), cooking loss, texture and sensory quality of the sample were measured every 2 days to evaluate the preservation effect of PAW. Results The results showed that after PAW treatment, the total bacterial count and TVB-N value of the sample were significantly inhibited, the pH decreased, the texture characteristics were maintained well, and the sensory quality of the sample were improved. PAW treatment could lead to an increase in cooking loss rate, and increase chewing ability of cold fresh Siniperca chuatsi slices. Conclusion The 15 minutes treatment group has the best preservation effect on cold fresh Siniperca chuatsi slices, maintaining good storage quality and prolonging the shelf life of cold fresh Siniperca chuatsi slices by 4 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 |