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The article describes the deoiling of lecithin using CO2 as an alternative to conventional deoiling with acetone. By removing the oil, lecithin becomes a powdered solid that is easier to handle and suitable for oil-free and reduced-fat formulations. Deoiling with CO2 offers advantages such as the possibility of offering the finished product in organic quality, the use of a natural product as an auxiliary substance, and the avoidance of reaction products with acetone and other organic solvents. The planning of a CO2 deoiling plant requires consideration of size and capacity, with gradual expansion being possible. It is noted that the patent rights for the deoiling of lecithin with CO2 have expired. [Extracted from the article]

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The article reports on the advantages of cold production compared to traditional hot production of products. Cold production can reduce energy costs, reduce CO2 emissions, and meet consumer demands. In addition, the possibility of CO2 recycling is demonstrated through an innovative biotechnological process, in which CO2 from the air can be captured and converted into valuable products. This technology enables sustainable use of CO2 and opens up new perspectives for a resource-efficient economy. The article also includes an obituary for Werner Siegrist, who was a loyal supporter of SEPAWA Switzerland and actively involved in the association. [Extracted from the article]