Novel pulsed magnetic field assisted freezing fresh-keeping refrigerator

Abstract

The invention discloses a novel pulsed magnetic field assisted freezing fresh-keeping refrigerator. The novel pulsed magnetic field assisted freezing fresh-keeping refrigerator comprises a refrigerator body, a refrigerating system is arranged in the refrigerator body, a pulsed magnetic field generating system is further arranged in the refrigerator body, and the pulsed magnetic field generating system comprises at least one magnetic field generating unit. Each magnetic field generating unit comprises a plurality of magnetic field generating coils 3 distributed on the periphery of the refrigerator body, and the magnetic field generating coils 3 of each magnetic field generating unit are connected to a pulse power supply and generate a pulsed magnetic field in an inner cavity of the refrigerator. According to the refrigerator, metabolism of food cells is changed, so that apoptosis is effectively inhibited, and the food fresh-keeping time is prolonged. Meanwhile, the pulsed magnetic field has the effects of improving the crystallization rate, reducing the ice crystal size and enabling ice crystal distribution to be more uniform, and is beneficial for keeping freshness and flavor in the meat freezing process.

Description

technical field [0001] The invention relates to a fresh-keeping refrigerator, in particular to a novel pulse magnetic field assisted freezing and fresh-keeping refrigerator. Background technique [0002] At present, with the improvement of residents' living standards, people have put forward higher requirements for the fresh-keeping quality of ingredients. In order to solve the problem of food storage, especially the problem that the quality of meat will be reduced during frozen storage, advanced food frozen storage technology and diversified food cold chain systems have become the focus of research in the world today. As a common physical field, the magnetic field has been shown to have a significant impact on the freezing and storage of food due to the magnetic effect of organisms. Appropriate magnetic field strength can change the physical and chemical properties of biological macromolecules and cell membranes, effectively remove free radicals, improve the fresh-keeping ...

AI Technical Summary

Problems solved by technology

[0003] At this stage, most commercial freezers and refrigerators use parameters such as controlling humidity and temperature to suppress the respiration rate of food to increase the freshness of food. However, this method of freezing and freshening cannot solve the problem of large ice crystal size in frozen meat and keep the meat fresh and tender.

There is already a freeze-preservation technology using a Helmholtz coil to generate a magnetic field, but the heat generated by the Helmholtz coil is large, the mass is large, and the whole is bulky, so it cannot be widely used

Images