永磁场对琼脂凝胶和马铃薯冷冻特性的影响

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-06-25 DOI:10.1016/j.ijrefrig.2025.06.027

In-U Jeong , Chang Joo Lee , Jin Hong Mok , Taiyoung Kang

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引用次数: 0

摘要

磁场在食品冷冻中的应用显示出改善食品冷冻特性和产品质量的潜力；然而，研究结果仍然不一致。研究了不同磁通密度的永磁场（PMF）对琼脂凝胶和马铃薯样品冷冻行为的影响。采用铁氧体磁体制备了5.8、14.7和25.0 mT的三种PMF处理，并通过数值模拟预测了它们的场强和分布。在琼脂凝胶样品中，随着PMF强度的提高，过冷度略有增加；然而，这种影响仅限于特定的冷冻条件（0.04°C min - 1 at -20°C），没有观察到明显的微观结构变化。此外，PMF处理对马铃薯样品的冷冻行为和品质属性没有影响。这些发现表明，在测试条件下，PMF处理对改善食品系统冷冻性能的贡献有限。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of permanent magnetic fields on freezing characteristics of agar gel and potato

The application of magnetic field in food freezing has shown potential to improve freezing characteristics and product quality; however, findings remain inconsistent across studies. This study investigated the effects of a permanent magnetic field (PMF) with different magnetic flux densities on the freezing behavior of agar gel and potato samples. Three PMF treatments at 5.8, 14.7, and 25.0 mT were produced by ferrite magnets, and their field strength and distribution were predicted through numerical simulations. In agar gel samples, the degree of supercooling slightly increased with higher PMF strength; however, this effect was limited to the specific freezing condition (0.04 °C min⁻¹ at -20 °C) and no noticeable microstructural changes were observed. Moreover, PMF treatments did not affect the freezing behavior of potato samples and their quality attributes. These findings indicate the limited contribution of PMF treatment for improving freezing performance in food systems under the tested conditions.

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.