Skw Trostberg Aktiengesellschaft

Haarmann & Reimer Gmbh

Pharma-zentrale Gmbh

Erwin Schutz

Heinz-Rudiger Vollbrecht

Jan Cully

Herbert Jekat

Kurt Stork

Klaus Sandner

Theodor Sand

Hubertus Klima

Robert Faust

Peter Muhlnickel

Rudolf Zobel

Wilfried Hallberg

Pesticides are removed from ginseng roots by extracting ginseng roots having a moisture content of 14 to 65% by weight with carbon dioxide at a pressure of more than 100 bar and at a temperature of more than 40.degree. C.

Process for the removal of pesticides from ginseng roots

The present invention provides a process for the removal of ethanol from drinks produced by fermentation by direct extraction of the ethanol in countercurrent with compressed carbon dioxide as extraction agent and separation of the extracted water-ethanol mixture from the extraction agent by lowering the density of the compressed gas, wherein, after the lowering of the density, the carbon dioxide is regenerated by a treatment with water and then returned to the extraction step.

Process for the removal of ethanol from drinks produced utilizing

The present invention provides a process for the removal of cholesterol and/or cholesterol esters from foodstuffs by extraction with compressed carbon dioxide, wherein

Process for the removal of cholesterol and/or cholesterol esters from

Terpenes are removed from essential oils by

Process for the removal of terpenes from essential oils

The present invention provides a process for the decaffeination of tea containing 15 to 50% by weight of water with moist carbon dioxide at 255 to 350 bar at 50.degree. to 80.degree. C. in a pressure vessel, subsequent separation of the caffeine from the carbon dioxide with the help of an adsorbent and recycling the caffeine-free carbon dioxide over the already extracted tea, wherein the adsorbent is distributed in the material to be extracted in an amount of from 5 to 40% by weight, referred to the dry weight of the tea.

Process for the decaffeination of tea

The present invention provides a process for the dearomatizing and subsequent rearomatizing of black or green tea, wherein

Process for the dearomatizing and rearomatizing tea

The invention relates to a method of extracting natural materials with carbon dioxide, in which the materials are used in the form of pellets of a diameter of 1.5 to 4.0 mm and a length of 1.5 to 10 mm, and of a bulk density of 0.4 to 0.6 kg/l, this method being highly suitable for the carbon dioxide extraction of hop constituents, so that the commonly practiced second grinding becomes unnecessary.

Method of extracting hop pellets with liquified carbon dioxide

The present invention provides a process for the separation of materials obtained by means of high pressure extraction from an extraction agent, wherein extraction agent loaded with extracted material is passed from below into a separator comprising a head (2), a bottom (3), a runback pipe (4) and a heat exchanger (1) in the form of one or more pipes and extract recycled in a forced circulation via the head (2) and the runback pipe (4) to the bottom (3) and there either discharged and/or returned to the heat exchanger (1), the extraction agent evaporated in the heat exchanger being removed via a filter (11) on the head (2).

Process for the separation of materials obtained by means of high

The present invention provides a process for the production of concentrated extracts from fresh plants or parts thereof by extraction with carbon dioxide at supercritical pressure, wherein the extraction is carried out at 0.degree. to 40.degree. C. and the separation of the concentrated extract is carried out at a subcritical temperature and subcritical pressure.

Process for the production of concentrated extracts from plants

A method is described for drying extracts of natural substances obtained by high-pressure extraction with liquefied gases or gases in the supercritical state; it consists in treating the gas stream that is charged with the extract with a solid drying agent, preferably calcium sulfate, in powder or granular form.

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Trostberg, Germany

Erwin Schutz