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2011 | OriginalPaper | Buchkapitel

9. Ultrasonic Cutting of Foods

verfasst von : Yvonne Schneider, Susann Zahn, Harald Rohm

Erschienen in: Ultrasound Technologies for Food and Bioprocessing

Verlag: Springer New York

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Abstract

In the field of food engineering, cutting is usually classified as a mechanical unit operation dealing with size reduction by applying external forces on a bulk product. Ultrasonic cutting is realized by superpositioning the macroscopic feed motion of the cutting device or of the product with a microscopic vibration of the cutting tool. The excited tool interacts with the product and generates a number of effects. Primary energy concentration in the separation zone and the modification of contact friction along the tool flanks arise from the cyclic loading and are responsible for benefits such as reduced cutting force, smooth cut surface, and reduced product deformation. Secondary effects such as absorption and cavitation originate from the propagation of the sound field in the product and are closely related to chemical and physical properties of the material to be cut. This chapter analyzes interactions between food products and ultrasonic cutting tools and relates these interactions with physical and chemical product properties as well as with processing parameters like cutting velocity, ultrasonic amplitude and frequency, and tool design.

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Titel: Ultrasonic Cutting of Foods
verfasst von: Yvonne Schneider
Susann Zahn
Harald Rohm
Verlag: Springer New York
Buch: Ultrasound Technologies for Food and Bioprocessing
Print ISBN: 978-1-4419-7471-6

Electronic ISBN: 978-1-4419-7472-3

Copyright-Jahr: 2011
DOI: https://doi.org/10.1007/978-1-4419-7472-3_9