Method for preparing granular animal feed additive and granular animal feed additive prepared by the method
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United States of America Patent
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Apr 7, 2009
Grant Date -
Oct 6, 2005
app pub date -
Mar 29, 2005
filing date -
Apr 2, 2004
priority date (Note) -
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Abstract
Provided are a method for preparing a granular animal feed additive and the granular animal feed additive prepared by the method. The method includes: filtering, with a membrane filter, a fermentation broth obtained from a lysine producing microorganism cultured in a lysine producing condition to obtain a lysine-containing filtrate and a microorganism-containing sludge; drying the filtrate to obtain a concentrate with a total solid content of 48 to 52 wt %; granule-drying the concentrate at a temperature of 50° C. to 60° C. to obtain granules; and coating the granules with a coating agent containing one or more selected from the group consisting of the sludge, a diluent or a free lysine as a lysine content adjustor, and a moisture prevention agent, to obtain lysine granules having the following properties:
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