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金属化包装结构中即食米饭微波加热均匀性的评估

Evaluation of Microwave Heating Uniformity for Ready-to-Eat Rice in Metalized Packaging Structure.

作者信息

Liu Chai, Tian Bo, Liu Huiran, Shen Liuyang, Zhu Yong, Liu Chenghai, Zheng Xianzhe, Deng Xiting, Zhao Yuxin

机构信息

College of Engineering, Northeast Agricultural University, Harbin 150030, China.

College of Food Science, Northeast Agricultural University, Harbin 150030, China.

出版信息

Foods. 2024 Dec 9;13(23):3979. doi: 10.3390/foods13233979.

DOI:10.3390/foods13233979
PMID:39683050
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11640921/
Abstract

Microwave energy utilization undergoes two stages via absorption and conversion inside ready-to-eat rice (RER) under microwave reheating. The reasonable utilization of microwave energy inside the processed material may enhance the uniformity of the temperature distribution. To analyze the uniformity changes inside RER, the effects of microwave reflection, refraction, and absorption by a metal aluminum film were studied through the thermodynamic properties. A simulation model was developed using the co-simulation method of COMSOL Multiphysics with MATLAB programming to analyze the mechanism of material properties and electromagnetic distribution on temperature distribution uniformity, as well as the formation mechanism of the temperature distribution uniformity of microwave-reheated RER. Based on models of the designed package boxes covering the metal film, the optimal structure was developed to include a metal aluminum film with a width of 5 mm and a thickness of 0.30 mm, which was sprayed on the edges and corners of a rectangular packaging box. The packaging boxes covering the metal films may reduce the average temperature of the upper and lower layers in RER by 8.03 °C and 7.42 °C, respectively, while the temperature distribution uniformity increased by 35.71% and 72.22%. The introduction of a metalized package significantly enhances the temperature uniformity inside RER under microwave reheating.

摘要

在微波加热即食米饭（RER）的过程中，微波能量利用会经历吸收和转换两个阶段。在加工材料内部合理利用微波能量可以提高温度分布的均匀性。为了分析RER内部的均匀性变化，通过热力学性质研究了金属铝膜对微波的反射、折射和吸收的影响。利用COMSOL Multiphysics与MATLAB编程的联合仿真方法开发了一个仿真模型，以分析材料特性和电磁分布对温度分布均匀性的影响机制，以及微波加热RER温度分布均匀性的形成机制。基于覆盖金属膜的设计包装盒模型，开发出了最佳结构，即在矩形包装盒的边缘和角落喷涂宽度为5毫米、厚度为0.30毫米的金属铝膜。覆盖金属膜的包装盒可使RER上层和下层的平均温度分别降低8.03℃和7.42℃，同时温度分布均匀性分别提高35.71%和72.22%。引入金属化包装显著提高了微波加热下RER内部的温度均匀性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d212/11640921/87a65648167c/foods-13-03979-g016.jpg
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本文引用的文献

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Improvement of Temperature Distribution Uniformity of Ready-to-Eat Rice during Microwave Reheating via Optimizing Packaging Structure.通过优化包装结构提高即食米饭微波加热过程中的温度分布均匀性
Foods. 2023 Aug 2;12(15):2938. doi: 10.3390/foods12152938.
2
Consumer Acceptance of a Ready-to-Eat Meal during Storage as Evaluated with a Home-Use Test.通过家庭使用测试评估即食餐在储存期间的消费者接受度。
Foods. 2021 Jul 13;10(7):1623. doi: 10.3390/foods10071623.
3
Simulation of Thermal and Electric Field Distribution in Packaged Sausages Heated in a Stationary Versus a Rotating Microwave Oven.
在静止与旋转微波炉中加热的包装香肠内热场和电场分布的模拟
Foods. 2021 Jul 13;10(7):1622. doi: 10.3390/foods10071622.