Power density control in microwave assisted air drying to improve quality of food
Power density control in microwave assisted air drying to improve quality of food
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DOI：
10.1016/j.jfoodeng.2013.06.044
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发表时间：
2013-12
影响因子：
5.5
通讯作者：
K. Y. Koné;C. Druon;Etienne Z. Gnimpieba;M. Delmotte;A. Duquenoy;J. Laguerre
中科院分区：
文献类型：
--
作者：
K. Y. Koné;C. Druon;Etienne Z. Gnimpieba;M. Delmotte;A. Duquenoy;J. Laguerre
目前，新的趋势是发展微波热风干燥控制，以解决产品上的热点问题。因此，本研究以番茄为对象，开发了一套具有自动功率密度控制功能的微波/热风干燥系统。在40 °C空气温度下应用三种功率密度（3、5和7 W/g），并在线记录输出、反射微波功率和样品质量。实施了两种不同的干燥策略。第一种是微波干燥，没有特定的功率控制。第二个是权力控制。与没有功率控制的干样品相比，基于与实际样品质量相关的比功率的反馈控制导致最佳功率控制和产品质量的改善。
Currently, the new trend is the development of microwave hot air drying control in order to solve the problem of hot spots on the product. So in this study, a microwave/hot air drying system with the ability of automatic power density control was developed for tomato drying. Three power densities (3, 5 and 7 W/g) at 40 °C air temperature were applied and the output, reflected microwave power and the mass of the sample were registered online. Two different drying strategies were implemented. The first consisted of a microwave drying without specific power control. The second one introduced power control. A feedback control based on specific power related to the actual sample mass resulted in the best power control and the improvement of product quality compared to the dry sample without power control.