Micro encapsulation using high-voltage, low-current, high frequency alternating-current spray atomization

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United States of America Patent

PATENT NO 12201134
APP PUB NO 20210244059A1
SERIAL NO

17245249

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Abstract

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Disclosed is a spray drying system and process for encapsulating a core material, such as a volatile flavor oil, within a carrier or wall material. The process is achieved by atomizing a liquid emulsion comprising the core material, the wall material, and a liquid solvent, applying a high-voltage, low-current, high frequency alternating-current charge or a high-voltage, low-current, low frequency alternating-current charge at the site of atomization, and drying the atomized emulsion into an encapsulated, free-flowing powder. Applying a high-voltage, low current alternating-current at the site of atomization allows the spray drying to be accomplished at significantly reduced temperatures, in particular, at inlet temperatures in the range of 25° C. to 150° C., and outlet temperatures in the range of 25° C. to 110° C. The low drying temperatures impart improvements in the resulting encapsulated powdered product, including better retention of volatile flavor components, a flavor profile comparable to that of the starting liquid formulation, and better hydration and dissolution in water-based applications.

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Patent Owner(s)

Patent OwnerAddress
FONA TECHNOLOGIES LLC1900 AVERILL ROAD GENEVA IL 60134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sobel, Robert M Elburn, US 8 23
Su, Chin-Ping Naperville, US 4 17

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