Soy isoflavone concentrate process and product
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United States of America Patent
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Apr 9, 2002
Grant Date -
Jun 14, 2001
app pub date -
Dec 4, 2000
filing date -
Oct 15, 1997
priority date (Note) -
Expired
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Abstract
A novel process for making an isoflavone concentrate product from soybeans which includes diluting solubles from alcohol-extracted hexane-defatted soybean flakes to about 10% to about 30% solids, separating undissolved solids from the diluted soy solubles, such that the separated solids have at least 4% isoflavones by weight of dry matter. That concentrate can then be further concentrated to at least 40% isoflavones by weight of dry matter by adjusting pH and temperature and extracting with solvents. The soy isoflavone concentrate products are then used in a liquid or dry beverage, food or nutritional products.
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