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中国精品科技期刊2020
何兴兴,魏茹慧,刘承灏,等. 静磁场辅助超冰温对猪肉贮藏品质和保水性的影响[J]. 食品工业科技,2024,45(24):1−8. doi: 10.13386/j.issn1002-0306.2024020028.
引用本文: 何兴兴,魏茹慧,刘承灏,等. 静磁场辅助超冰温对猪肉贮藏品质和保水性的影响[J]. 食品工业科技,2024,45(24):1−8. doi: 10.13386/j.issn1002-0306.2024020028.
HE Xingxing, WEI Ruhui, LIU Chenghao, et al. Effects of Static Magnetic Field-assisted Supercooling Preservation on Quality and Water-Holding Capacity of Pork During Storage[J]. Science and Technology of Food Industry, 2024, 45(24): 1−8. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024020028.
Citation: HE Xingxing, WEI Ruhui, LIU Chenghao, et al. Effects of Static Magnetic Field-assisted Supercooling Preservation on Quality and Water-Holding Capacity of Pork During Storage[J]. Science and Technology of Food Industry, 2024, 45(24): 1−8. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024020028.

静磁场辅助超冰温对猪肉贮藏品质和保水性的影响

Effects of Static Magnetic Field-assisted Supercooling Preservation on Quality and Water-Holding Capacity of Pork During Storage

  • 摘要: 超冰温可以使猪肉不发生冻害,但维持超冰温状态是困难的。本文提出了一种创新的静态磁场辅助超冰温(Static Magnetic Field Extended Supercooling,SMF-ES)方法来保持猪肉的非冷冻状态。研究了SMF-ES(−3.5 ℃+SMF)与冷藏(4 ℃)、微冻(−3.5 ℃)和冷冻(−18 ℃)处理对猪肉品质和保水性的影响。结果表明,8 mT的静磁场强度可有效将猪肉在−3.5 ℃下无冰核保存12 d,防止了猪肉在超冰温−3.5 ℃下发生冻害。与冷藏、微冻和冷冻处理相比,SMF-ES组中猪肉的汁液损失率分别降低了21.10%、59.81%及30.64%,且SMF-ES组中猪肉的色泽、嫩度、离心损失、肌原纤维蛋白溶解度和表面疏水性指标是最优的。与冷藏处理和微冻处理相比,SMF-ES处理组的pH、脂质氧化程度和菌落总数在贮藏期变化最为缓慢。综上,SMF-ES处理组的猪肉整体可接受性最佳,表明磁场辅助超冰温处理有效地维持了冰鲜猪肉的品质和保水性。

     

    Abstract: Supercooling can preserve pork without freezing damage. However, maintaining a supercooled state is difficult. An innovative static magnetic field extended supercooling (SMF-ES) method was proposed to maintain the non-frozen state of pork. Effects of SMF-ES (−3.5 ℃+SMF) compared with refrigerated (4 ℃), slight-frozen (−3.5 ℃) and frozen (−18 ℃) treatments on pork quality and water-holding capacity were investigated. Results demonstrated that an 8 mT static magnetic field successfully preserved pork at −3.5 ℃ without ice nucleation for 12 d, which prevented freezing damage to pork. Compared with the refrigerated, slow-frozen, and frozen treatments, the drip loss of SMF-ES decreased by 21.10%, 59.81% and 30.64%, respectively. The color, tenderness, centrifugation loss, myofibrillar protein solubility, and surface hydrophobicity of pork in the SMF-ES group were better than those in the refrigerated, slow-frozen, and frozen treatments. In addition, the SMF-ES group was superior to the refrigerated and slow-frozen groups in terms of pH value, lipid oxidation degree, and aerobic plate count. In conclusion, the overall acceptability of pork after SMF-ES treatment was the best, indicating that SMF-ES treatment could effectively maintain the quality and water-holding capacity of chilled pork.

     

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