Method for obtaining fatty acids from biomass by combined in/situ extraction, reaction and chromatography using compressed gases
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United States of America Patent
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Feb 26, 2002
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N/A
app pub date -
Feb 16, 2001
filing date -
Jul 22, 1998
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Abstract
The invention relates to a method for obtaining fatty acid esters and fatty acids, preferably unsaturated fatty acid ethyl esters, from biological sources by continuous, combined in-situ extraction, reaction and chromatography. The invention is characterized in that simultaneously and in the same location, in the presence of a compressed gas and an 0.5-5 % stream of lower alcohols as modifiers and in the presence of an inert catalyst, the fatty acids are fully transesterified from their native fatty acid sources, which are selectively desorbed and eluated in the conditions specified above.
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