Supercritical Fluid Extraction of Oils and Waxes from Grape Seeds with Carbon Dioxide

摘要

The effect of carbon dioxide pressure, temperature, and time on the efficiency of supercritical fluid extraction of fatty oil and wax from grape seeds is studied. We find the optimum conditions for the production of oil and wax from grape seeds using supercritical carbon dioxide as an efficient extracting solvent, which showed an advantage over traditionally used organic solvents. The organoleptic and physicochemical parameters of extracts are determined; the fatty acid composition of grape oil is studied using chromato-mass spectrometry. It has been shown that two natural valuable products can be obtained from grape seeds by supercritical fluid extraction with carbon dioxide, namely, grape-seed oil and wax, which are used widely in the food, pharmaceutical, and cosmetological industries.