磁场 (MF) 辅助冷用于食品保存:原理,应用和技术进步:概述
Zhongshuai Yang1, Jing Tian1, Aofei Pu2
1School of Electronics and Electrical Engineering, Ningxia University, Yinchuan, Ningxia, China.
Comprehensive reviews in food science and food safety
|June 25, 2025
概括
磁场 (MF) 辅助冷促进了较小的冰晶和更快的冷,显著改善了食品质量保存. 这项技术增强了超级冷却和核化,最大限度地降低了细胞损伤,以获得优质的冷食品产品.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 传统的冷方法往往会导致大冰晶,损害食物的细胞结构和质量.
- 磁场 (MF) 辅助冷提供了一种新的方法来缓解这些问题.
- 了解MF对水的特性和结晶的影响对于食品的保存至关重要.
研究的目的:
- 综合审查MF对水分子和冰结晶过程的影响.
- 探索影响MF冷功效的因素.
- 总结MF在各种食品中的冷应用,并确定未来的研究方向.
主要方法:
- 对MF对水特性影响的现有文献的审查.
- 分析MF对超冷却,核和晶体生长的影响.
- 在多种食物矩阵中收集有关MF冷应用的数据.
主要成果:
- MF加强超冷却,加速冷却,并促进核形成.
- 多晶体技术促进了较小的冰晶的形成,减少了细胞损伤.
- 多功率辅助冷有效地保持了各种食品的质量.
结论:
- 多功率辅助冷是一种有前途的技术,可以提高食品保存质量.
- 需要进一步的研究来优化MF参数和整合到工业过程中.
- 这项技术有可能提高冷食品行业的效率和产品质量.
更多相关视频
07:42Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
2.9K
09:03Rapid Freezing using Sandwich Freezing Device for Good Ultrastructural Preservation of Biological Specimens in Electron Microscopy
Published on: July 19, 2021
5.5K
相关概念视频
01:31Ferromagnetism
2.5K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.5K
01:30Magnetism
6.7K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
6.7K
01:25Applications Of NMR In Biology
4.0K
Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
4.0K
01:23Atomic Nuclei: Nuclear Relaxation Processes
728
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis.
728
01:25Eddy Currents
1.8K
Since eddy currents occur only in conductors, magnets can separate metals from other materials. For example, in a recycling center, trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by eddy currents, while nonmetals in the trash move on, separating from the metals. This works for all metals, not just ferromagnetic ones.
Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...
Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...
1.8K