Abstract: A method is provided for producing a coenzyme Q10/?-cyclodextrin complex. This method provides that a mixture of ?-cyclodextrin and coenzyme Q10 is treated by homogenisation and inputting energy.

Abstract: The invention relates to a method for producing a coenzyme Q10/&ggr;-cyclodextrin complex. Said method is characterized in that a mixture of &ggr;-cyclodextrin and coenzyme Q1O is treated by homogenisation and inputting energy.

Abstract: Disclosed is a process for the fractionation of wool wax acid mixtures by dissolving the starting material in a polar organic solvent (mixture). The dissolved wool wax acid mixture is treated at a temperature between -5 and 30.degree. C. and at a pressure between 10 and 70 bar with gaseous carbon dioxide and the hydroxy-fatty acids that accumulate as a solid are separated from the solution.

Abstract: A process for the extraction of carotenoid dyes from pre-dried natural starting materials is described using compressed gases such as propane and/or butane in which organic entraining agents can be additionally added in order to facilitate and complete the extraction process. With the aid of this process highly concentrated carotenoid dyes are obtained in high yield.

Abstract: A process is described for obtaining lipid fractions from egg products in powder form with a content of phospholipids in which the egg product is a) firstly extracted with liquid propane at a pressure of.ltoreq.200 bar and a temperature of.ltoreq.70.degree. C. and b) subsequently with a mixture of liquid propane and an entraining agent composed of an aliphatic alcohol with 1 to 4 C atoms. In this way it is possible to produce lipid fractions with good sensory properties whose content of phospholipids is at least 25% by weight and up to 80% by weight.

Abstract: For the extraction of carotenes, in particular of .beta.-carotene, from natural sources, these are stirred for several hours at at least 30.degree. C. in a solvent mixture composed of acetic esters of C.sub.1 -C.sub.4 alcohols as well as a portion of 1 to 25% by weight of an oil of biological origin. The natural colorant is in this way obtained in very high space-time yields and high purity.

Abstract: A process is described for the purification of carbohydrate derivatives with surface-active properties in which an extraction process is used to liberate the solid or liquid starting material from undesired lipophilic by-products by the use of compressed propane or a proportionate mixture thereof with butane at pressures between 8 and 150 bar and a process temperature below 120.degree. C. In this way it is possible to isolate valuable raw materials in a gentle manner either batch-wise or continuously which meet the high purity requirements, for example in the field of cosmetics.

Abstract: The present invention provides a process for the production of fat- and cholesterol-reduced powdered products based on eggs with a high content of phospholipids by extraction with compressed gases, wherein the powdered starting material is extracted with a solvent mixture consisting of propane and carbon dioxide with a mixing ratio of 95/5 to 5/95% by weight at a pressure of <300 bar and at s temperature of <70.degree. C.

Abstract: A process is described for the production of egg-based products in powder form with a reduced fat and cholesterol content in which the starting material in powder form is extracted with liquid propane at a pressure of .ltoreq.200 bar and at a temperature of .ltoreq.70.degree. C. In this way low-cholesterol and low-fat egg powder products with good sensory properties are produced without the phospholipids and in particular lecithin being removed to a substantial extent in this process.

Abstract: The present invention provides a process for the production of highly concentrated fruit aromas from condensed fruit vapours, whereina) the fruit aromas in the fruit vapours are concentrated to a content of 0.05 to 1% by weight according to known methods,b) the concentrate from step a) is subjected to an extraction with compressed carbon dioxide at 60 to 180 bar and 10.degree. to 50.degree. C., andc) after decompression of the carbon dioxide and optionally after the addition of water, the aromarich oily phase is separated from the aroma-poor aqueous phase.

Abstract: In a process for the removal of cholesterol and cholesterol esters from egg yolk, the egg yolk is diluted with an aqueous solution of a water-soluble salt of the cation potassium or/and calcium as well as the anion chloride and/or sulfate or/and an organic anion with a molecular weight of .ltoreq.150. The diluted egg yolk is subsequently mixed with .beta.-cyclodextrin until complexation of cholesterol and cholesterol esters with .beta.-cyclodextrin has taken place. The formed complexes are separated and after separation of the complexes from the egg yolk mixture the added salt as well as, if desired, water is removed again. Low sodium egg yolk products with a low total cholesterol content and good sensorial properties are obtained.

Abstract: A process for the isolation of lipid fractions from egg products in powder form with a content of phospholipids is described in which the egg product is extracteda) with liquid propane at a pressure of .ltoreq.200 bar and a temperature of .ltoreq.70.degree. C. andb) an entraining agent consisting of an aliphatic alcohol with 1 to 4 C atoms.In this way it is possible to produce lipid fractions with good sensory properties whose content of phospholipids is at least 20% by weight.

Abstract: A process for the extraction of fats and oils from natural substances using liquid propane as the solvent is described in which the extraction is carried out at a pressure of 10 to 30 bar and a temperature of 10.degree. to 55.degree. C. and the separation of the extracted fats and oils from the solvent is carried out by means of pressure reduction or/and temperature increase to .ltoreq.80.degree. C. High quality products are isolated in this way in a good yield and under mild conditions.

Abstract: In order to stabilize hop products by drying at a circulating air temperature of 60.degree. to 80.degree. C. to a residual moisture content of the dried hop products of between 12 and 14% by weight, the hop product is subjected after drying to a short period of thermal irradiation or to a temperature treatment at 60.degree. to 90.degree. C. under inert gas conditions.

Abstract: A process for the production of egg yolk with a reduced cholesterol content, whereina) the egg yolk is diluted by the addition of water or of an aqueous salt solution,b) cholesterol and cholesterol esters which are contained in the diluted egg yolk are selectively complexed with .beta.-cyclodextrin,c) the .beta.-cyclodextrin loaded with cholesterol and/or cholesterol esters are separated from the diluted egg yolk,d) the added water is removed from the egg yolk,e) the residual amounts of .beta.-cyclodextrin present in the egg yolk are decomposed enzymatically with the help of .alpha.-amylase and/orf) the .beta.-cyclodextrin is recovered by treatment with water and/or an alcohol from the .beta.-cyclodextrin complexes and optionally returned to step b).

Abstract: The present invention provides a process for the removal of cholesterol from egg yolk, wherein1. a diluted egg yolk mixture is produced by the addition of an aqueous solution of ammonium carbonate or of sodium chloride,2. the diluted egg yolk mixture is mixed with a solid adsorbent or complexing agent until the cholesterol is adsorbed or complexed and thereafter3. the solid adsorbent loaded with cholesterol or the cholesterol complex is separated from the egg yolk mixture and4. subsequently ammonium carbonate or sodium chloride and possibly water is removed.

Abstract: Cholesterol and cholesterol esters are removed from egg yolk by a process whereina) optionally after the addition of an emulsion-breaking agent to the egg yolk, the egg yolk plasma is separated from the LDL-granula fraction,b) cholesterol and cholesterol esters which are contained in the egg yolk plasma are adsorbed on a solid adsorption agent andc) the solid material loaded with cholesterol and/or cholesterol esters is separated from the liquid plasma phase and optionally the egg yolk plasma and the separated granula fraction are again mixed together.

Abstract: Terpenes are removed from essential oils by(a) contacting terpene-containing essential oils with a polar solid (adsorbent);(b) separating the loaded adsorbent from the liquid phase enriched with terpenes; and(c) subjecting the adsorbent loaded with essential oils to an extraction with compressed carbon dioxide.

Abstract: The present invention provides a process for the removal of cholesterol and/or cholesterol esters from foodstuffs by extraction with compressed carbon dioxide, whereina) the cholesterol-containing extraction material is treated with compressed carbon dioxide at a pressure above 100 bar and at a temperature of from 10.degree. to 90.degree. C.,b) from the carbon dioxide stream loaded with cholesterol and/or cholesterol esters, as well as with further lipophilic components, the cholesterol components are selectively removed by adsorption on a solid adsorption agent or by adduct formation andc) at least a part of the carbon dioxide current substantially free from cholesterol components is again passed over the treated extraction material and/or used for the extraction of untreated, cholesterol-containing extraction material.

Abstract: A process for the removal of .beta.-cyclodextrin from egg yolk or egg yolk plasma, wherein the material to be treated is mixed and incubated with an .alpha.-amylase selected from the .alpha.-amylases formed by or derived from micro-organisms of the group Aspergillus niger, Aspergillus oryzae, Bacillus polymyxa, Bacillus coagulans and Flavobacterium or domestic hog pancreas amylase.