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The high hydrostatic pressure treatment on sea cucumber has many advantages over traditional processes and it has a promising future. Effects of processing parameters on holothurians autoenzyme activity were investigated within the range of the parameters: the processing pressure of 0.1~550 MPa, the pressure-keeping time of 0~30 min, the processing temperature of 24~62 ℃. Under the room temperature and pressure-keeping time of 20 min, the autoenzyme activity decreased to 88.25% at 200 MPa, increased to 106.77% at 250 MPa, and reached the lowest level of 29.81% at 550 MPa. The holothurians autoenzyme activity increased first and then decreased with the increasing of pressure-keeping time and temperature. The effect of pressure-keeping mode on holothurians autoenzyme activity was not significant. The BP artificial neural network was used to predict the effects of high pressure on holothurians autoenzyme. Compared with the experimental results, the average relative error of predicted results was 0.9%. The experimental results show that the holothurians autoenzyme can be activated and inactivated at certain pressure, pressure-keeping time and temperature. The study provides some valuable information for optimizing the high hydrostatic pressure treatment of holothurians autoenzyme inactivation.
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| 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 |
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