Counter-current extraction of oil seed protein source
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United States of America Patent
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Issued Date -
Apr 26, 2012
app pub date -
Sep 22, 2011
filing date -
Sep 22, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A soy protein product, which may be an isolate, useful for the fortification of soft drinks and sports drinks without precipitation of protein, is prepared by extraction of a soy protein source using aqueous calcium salt solution in a counter-current operation in which the extracting aqueous calcium salt solution flows in counter-current direction to the flow of soy protein source, to form an aqueous soy protein solution, entrained fine particulates are at least partially removed from the aqueous soy protein solution and the pH of the resulting soy protein solution is adjusted to about pH 1.5 to about 4.4 to produce an acidified clear soy protein solution, which may be dried, following optional concentration and diafiltration.
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