About solvents used in the preparation of oils for cosmetic products complying with the Cosmos standard

Solvents have a bad reputation in the cosmetics world, at least as regards production of specialty vegetable oils used this market. In order to do without these solvents, industry tends use only mechanically produced oils. However, there is range seeds for which mechanical extraction not satisfactory. This case with rare, expensive, and oil-poor pressing does give good yields, results high costs. These are also hard that cannot be pressed causing presses become intensely hot, affects quality recent years, our laboratory has worked on development techniques ethanol EcoXtract ® solvent (2-methyloxolane) provide professionals methods compatible COSMOS standard. Ethanol oils, especially presence water low temperature. drawback can turned into an advantage recover oil (without distillation solvent) by cold decantation. The carried out hot components, recovered cooling saturated miscella precipitation lipid phase. process makes it possible limit energy consumption necessary recovery regeneration solvent. great intended cosmetic market better power polar lipids compared hexane extraction. It split extract neutral adjusting temperature or partial distillation. At refining step, deacidify remove contaminants from crude liquid-liquid ethanol. We recently obtained interesting reducing phthalate concentration walnut 90%. neutralization generates less loss than alkaline mixture acidity, harmful physical during 3-MCPD esters, esters glycidol, trans fatty acids. derived chemistry pentoses biomass. very solvation capacities biological toxicity hexane. Its acceptable carbon footprint sustainability characteristics. recognised Ecocert suitable producing ingredients. Compared ethanol, its requires fewer preparation steps (ethanol rigorous drying before extraction) circulating per kilo extracted. removal meal allows direct steam aid since miscibility limited 4.5 g/100g.