期刊
FOOD RESEARCH INTERNATIONAL
卷 48, 期 2, 页码 410-427出版社
ELSEVIER
DOI: 10.1016/j.foodres.2012.05.004
关键词
Ultrasound; Low power; High power; Velocity; Attenuation; Food analysis; Food lipids; Meat products; Vegetables and fruits; Microbial inactivation; Freezing; Drying; Extraction
Ultrasound is composed of sound waves with frequency beyond the limit of human hearing. By tuning frequency, ultrasound can be utilized in many industrial applications including food. Ultrasound techniques are relatively cheap, simple and energy saving, and thus became an emerging technology for probing and modifying food products. Low power (high frequency) ultrasound is used for monitoring the composition and physicochemical properties of food components and products during processing and storage, which is crucial for controlling the food properties and improving its quality. High power (low frequency) ultrasound. on the other hand, induces mechanical, physical and chemical/biochemical changes through cavitation, which supports many food processing operations such as extraction, freezing, drying, emulsification and inactivation of pathogenic bacteria on food contact surfaces. This review summarizes the major applications of low and high power ultrasound in food science and technology. The basic principles of low and high power ultrasound will be highlighted, and their methods and applications including important research results will be presented. These applications include meat products, vegetables and fruits, cereal products, aerated foods, honey, food gels, food proteins, food enzymes, microbial inactivation, freezing, drying and extraction. Published by Elsevier Ltd.
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