不同堆放方式对冻猪肉冷藏效果的影响

Influence of Different Piling Ways on the Temperature Distribution in Frozen Pork during Refrigeration Storage

冻猪肉在长期的冷藏过程中会由于冷藏温度不均匀导致猪肉品质下降,冷藏效果变差。为了提高冻猪肉的冷藏效果,本研究通过仿真模拟的手段,建立冻猪肉冷藏模型,分析不同堆放方式下冻猪肉的温度差异,进而获得有利于冻猪肉长期冷藏的堆放方式。结果表明:贴近壁面堆放的猪肉冷藏效果较差,集中堆放对于托盘底部猪肉的冷藏同样不利,回风口下方区域冷藏效果较差。因此,冻猪肉在冷库内应尽量远离壁面、分散堆放、避免在回风口下方堆放。

Long-term refrigeration of frozen pork will cause deterioration of pork quality due to uneven temperature distribution. In order to improve the temperature distribution in frozen pork during refrigeration storage, a simulation model for refrigeration of frozen pork was developed to investigate the differences in the temperature distribution in frozen pork piled up in different ways and consequently to find the best way of piling frozen pork up for long-term refrigeration. The results showed that samples piled up close to the walls had good temperature distribution. Concentrated piling was unfavorable for the samples on the bottom of trays. The area beneath the air outlet provided poor temperature distribution. In a refrigeration house, frozen pork should be kept far away from the walls as much as possible and scattered piling is recommended. In addition, frozen pork should not be piled up beneath the bottom of the air outlet.