Application of high-power ultrasound for dehydration of vegetables:: Processes and devices
Application of high-power ultrasound for dehydration of vegetables:: Processes and devices
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DOI：
10.1080/07373930701677371
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发表时间：
2007-01-01
影响因子：
3.3
通讯作者：
Blanco, A.
中科院分区：
文献类型：
--
作者：
Gallego-Juarez, J. A.;Riera, E.;Blanco, A.
高强度超声是一种具有很大潜力的蔬菜脱水工具。航空超声波已被用于干燥材料与热空气系统相结合，以获得足够的干燥速度在较低的温度。然而，由于在空气中有效产生高强度超声波的实际困难，这项技术的推广受到限制。板式换能器功率超声发生器新技术的实现为这一领域开辟了新的可能性。本文从新型功率超声发生器的应用出发，综述了蔬菜超声脱水技术的开发与试验。在与蔬菜直接接触的条件下，进行了航空超声和超声振动两种实验程序。
High-intensity ultrasound is a tool with a great potential for vegetable dehydration. Airborne ultrasonic waves have been used for drying materials in combination with hot air systems to obtain adequate drying rates at lower temperatures. Nevertheless, the extension of this technique has been limited because of practical difficulties in the efficient generation of high-intensity ultrasound in air. The implementation of a new technology of plate-transducer power ultrasonic generators has opened up new possibilities in this area. This article reviews the development and testing of an ultrasonic technology for vegetable dehydration based on the application of the new power ultrasound generators. Two experimental procedures have been carried out by airborne ultrasound and ultrasonic vibration in direct contact with the vegetable.