Method of preparing a liquid extract of cereal grain and apparatus suitable for use in such method
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United States of America Patent
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Nov 10, 2015
Grant Date -
Feb 9, 2012
app pub date -
Feb 5, 2010
filing date -
Feb 5, 2009
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Abstract
The present invention provides a continuous method of preparing a liquid extract of cereal grain by comminuting cereal grain at a rate of at least 100 kg of dry cereal grain per hour and extracting the comminuted cereal grain with a liquid, said method comprising:
- continuously combining cereal grain with a liquid;continuously disintegrating the grain particles contained within the liquid by colliding freely suspended grain particles with one or more rotating blades, thereby producing a milled suspension;continuously transferring at least a part of the milled suspension, optionally after further treatment, to a separation device for separation into spent grain and liquid extract;wherein the one or more rotating blades are rotating at a tip speed of at least 10 m/s; the total mechanical energy transferred into the milled suspension by the one or more rotating blades is in the range of 5-1000 kJ per kg of dry cereal grain; and the distance between a tip of said one or more rotating blades and the axis of rotation is in the range of 2-25 cm.
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