Extraction caffeine from tea and solanesol from tobacco leaf by
Abstract: Supercritical CO2 extraction technology is a new separation technology in modern chemical separation. In the article, Removal caffeine Removal from green tea and extract solanesol from tobacco leaf by using supercritical CO2 extraction technology. In the experiment of Removaling caffeine from green tea, study some related factor as pressure, temperature, time, co-solvent, pretreatment, the best technology conditions are: microwave pretreatment, contain 40% water in the tea, co-solvent is 30% ethanol/water, extraction pressure is 40MPa, extraction temperature is 50℃, extraction time is 8h. Extract solanesol from tobacco leaf by supercritical CO2 extraction technology, study the effect of related factors on extraction result, and the suitable technology condition is: co-solvent is 95% ethanol/water, extraction temperature is 50℃, extraction pressure is 20MPa, extraction time is 2h.