Food or edible material: processes – compositions – and products – Involving ion exchange – sequestering or chelating material
Reexamination Certificate
2011-08-02
2011-08-02
Weier, Anthony (Department: 1781)
Food or edible material: processes, compositions, and products
Involving ion exchange, sequestering or chelating material
C426S330100, C426S423000, C426S424000
Reexamination Certificate
active
07989010
ABSTRACT:
The present invention provides a method for preventing or reducing off-flavor in a beverage. Silane-treated silica filter media are synthesized. By contacting the beverage with the silane-treated silica filter, one or more off-flavor substances or off-flavor precursors bind to the silane-treated silica filter media and are removed. Beverages that tend to develop off-flavor upon storage such as alcoholic, fruit, and vegetable beverages, are suitable for the present invention. The present invention provides a method that can reduce the level of off-flavor substances such as trans-2-nonenal, diacetyl, and cis-3-nonenal. The present invention also provides a method that can reduce the level of off-flavor precursors such as linoleic acid. The silica filter media useful for the present method include rice hull ash, oat hull ash, or diatomaceous earth.
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Brothers, Jr. Herbert Martin
Gibson Gary L.
Matherly, Jr. James E.
McIvor Margo Lynn
Revis Anthony
Dow Corning Corporation
Kung Viola T.
Perkins Coie LLP
Weier Anthony
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