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Power Ultrasonics by Karl F. Graff, Juan A. Gallego-Juarez

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29

Ultrasonic drying for food preservation

J.V. García-Pérez1; J.A. Carcel1; A. Mulet1; E. Riera2; J.A. Gallego-Juarez2    1 Universitat Politècnica de València, Valencia, Spain2 Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain

Abstract

This chapter examines the most recent advances in the use of high-power ultrasound for drying and dewatering food materials. Improvements in the design of specific ultrasonic devices for drying are addressed as well as the efficiency of the ultrasonic application. Direct contact and airborne ultrasonic applications are explored in hot air and low-temperature drying. In addition, the effect of operational parameters such as air temperature, air velocity, or ultrasonic power are depicted ...

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