Process for the extraction of nonpolar constituents from plant material
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United States of America Patent
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Aug 7, 1990
Issued Date -
N/A
app pub date -
Mar 31, 1989
filing date -
Sep 24, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a process for extracting nonpolar constituents from natural substances such as hops with simultaneous separation of residues of nonpolar plant protectives (fungicides/insecticides). In a first step, the plant protective as well as other ingredients that are soluble under the chosen conditions is extracted with compressed gases, and in a subsequent stage, the dissolved mixture is passed through an adsorbent and the plant protective is selectively removed from the mixture.
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Cited Art Landscape
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