Phase equilibrium for capsaicin+water+ethanol+supercritical carbon dioxide
作者： Catarina M.M Duarte , Marcelo Crew , Teresa Casimiro , Ana Aguiar-Ricardo , Manuel Nunes da Ponte
DOI: 10.1016/S0896-8446(01)00114-0
关键词: Extraction (chemistry) 、 Vapor–liquid equilibrium 、 Nuclear chemistry 、 Mass fraction 、 Water content 、 Chemistry 、 Fraction (chemistry) 、 Chromatography 、 Supercritical fluid extraction 、 Ethanol 、 Supercritical carbon dioxide
摘要: Abstract The possibility of extracting capsaicin with supercritical carbon dioxide from a hydroalcholic mixture containing the alkaloid was investigated. High-pressure phase equilibrium on quaternary system CO 2 +ethanol+water+capsaicin measured in order to obtain separation factor natural product hydro-alcoholic model mixtures. Experiments behavior were performed at several pressures (12, 15 and 18 MPa) temperatures 40 50 °C. factors for three mixtures different composition—0.40 water+0.60 ethanol mass fraction 0.9 water+0.10 fraction, 0.02% 0.40 water 0.04% capsaicin—are compared. effect content selectivity extraction process is discussed.
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