Abstract: The present invention relates to a preparation comprising at least one encapsulation material and at least one bioactive natural substance, which bioactive natural substance can be released from the preparation in a controlled manner, wherein the encapsulation material comprises at least one glyceride with a melting point of at least 35° C. and additionally at least one polymer with polyester units, which has a melting temperature of at least 30° C. and a viscosity in the range from 50 mPa*s to 250 Pa*s, measured by means of rotational viscometry at 110° C. The present invention further describes processes for producing the preparation of the invention, as well as preferred uses.

Abstract: The invention relates to a method for obtaining fruit wax from plant constituents, said method being carried out essentially using compressed C2-C4 hydrocarbons. Unlike previous extraction methods with supercritical CO2, the inventive method can be carried out at low pressures and with a reduced extraction means throughput. Residues from the fruit treatment, especially peel from the juicing process, are used as starting materials. Preferred extraction agents are ethane, propane, butane and the mixtures thereof, the extraction itself being carried out in batches at pressures of <50 mPa and temperatures of ?70° C., with an extraction agent throughput of between 4 and 20 kg/kg of starting materials. The extracted fruit wax is outstandingly suitable for cosmetic or pharmaceutical preparations, especially for the care and treatment of the skin.

Abstract: The invention relates to a method for obtaining natural oils from plant constituents, said method being essentially carried out using compressed C2-C4 hydrocarbons. Residues from the crop and fruit treatment, especially from the treatment of pips and berries, are used as starting materials. Unlike previous extraction methods using organic solvents, the inventive method can be economically carried out on the basis of low pressures and reduced extraction agent throughputs. Preferred extraction agents are ethane, propane, butane and the mixtures thereof, the extraction itself being carried out in batches at pressures of <50 mPa and temperatures of ?70° C., with an extraction agent throughput of between 4 and 20 kg/kg of starting materials. The extracted oils are outstandingly suitable for flavouring preparations and cosmetic formulations, especially for the care and treatment of the skin.

Abstract: The invention concerns a process and a device for supercritical wet oxidation of a waste mixture containing particles comprised of organic and inorganic components. In the invention, the waste material mixture is introduced into a vessel (2), which is continuously flowed through by water in the direction counter to gravity, and that a near critical or supercritical condition exists. The flow velocity is so selected, that the particles are kept in suspension, however are not transported in the direction of flow, thereby forming a turbulence layer (30) having an upper boundary. Solids present in the water are discharged and fluid, which is located above the upper limit (32) of the turbulence layer, is continuously removed from the vessel.

Abstract: A process and a device for supercritical wet oxidation of a waste material mixture containing particles comprised of organic and inorganic components, which are suspended in water, which is raised to a near critical or supercritical condition and in this condition is passed through a pipe reactor (6). According to the invention the pipe reactor is so arranged, that the organic components substantially dissolve in water substantially without being oxidized. The output products of the pipe reactor are caused to pass through a second reactor (8) in the near or supercritical condition, which has a substantially smaller ratio of internal surface area to volume than the pipe reactor and is so arranged that the organic components are substantially completely oxidized therein.