METHOD OF PREVENTING OR REDUCING OFF-FLAVOR IN A BEVERAGE USING SILANE-TREATED SILICA FILTER MEDIA

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 sil...

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Bibliographische Detailangaben
Hauptverfasser:	MATHERLY, JAMES, E. JR, REVIS, ANTHONY, BROTHERS, HERBERT MARTIN JR, GIBSON, GARY, L, MCIVOR, MARGO LYNN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AGEING BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLARIFICATION ENZYMOLOGY FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING PASTEURISATION PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRESERVATION PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PURIFICATION SPIRITS STERILISATION THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR RELEVANT APPARATUS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	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.