Process for producing an antioxidant extract from the bearberry plant
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United States of America Patent
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Dec 9, 2003
Grant Date -
N/A
app pub date -
Jun 22, 2000
filing date -
Jun 25, 1999
priority date (Note) -
Expired
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Abstract
An antioxidant extracted from the bearberry plant (Arctostaphylos uva-ursi), particularly for use as a food preservative, and a process of extracting it from the bearberry plant are disclosed. The process includes grinding the leaves of the bearberry, mixing the ground leaves with ethanol, shaking the resulting slurry, filtering the slurry, evaporating the supernatant to dryness and dechlorophyllyzing the resulting precipitate using a silicic acid column with hexane as the mobile phase and recovering the dechlorophyllyzed extract using ethanol as the mobile phase.
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