Destruction of airborne pathogens, and microorganisms on grains and dried food using ultrasound
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United States of America Patent
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Oct 15, 2024
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Jun 16, 2021
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Jun 17, 2020
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Abstract
An acoustic apparatus and method for using a combination of low-frequency and high-frequency vibration of dried food, grain being an example, such that there are a large number of collisions among the individual grain particles for destroying microorganisms that reside on the surface or just below the surface of the grain, are described. Embodiments of the invention permit bulk and continuous processing of the food. It is expected that such collisions do not produce any chemical changes in the food, nor should it have any adverse effects on the taste thereof. Embodiments of the apparatus are applicable to destruction of airborne microorganisms.
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