Method for extracting and fractionating fats with solvent, using at least a hydrofluroether
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United States of America Patent
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Jan 6, 2004
Grant Date -
May 15, 2003
app pub date -
Sep 9, 2002
filing date -
Dec 21, 1999
priority date (Note) -
Expired
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Abstract
The invention concerns a method for extracting and fractionating fats contained in a raw material, characterized in that it comprises at least a step which consists in using an extraction solvent consisting of at least a hydrofluoroether of general formula (I): C.sub.n F.sub.2n+1 OC.sub.m H.sub.2m+1, wherein: n ranges between 3 and 6 and m ranges between 1 and 5 and at least a separation step enabling to obtain a raw extract of fats rich in unsaponifiable substances and optionally, in free fatty acids and a insoluble extraction fraction.
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