Fractional Extraction by Supercritical Carbon Dioxide for the Deterpenation of Bergamot Oil

2000 ◽  
Vol 39 (12) ◽  
pp. 4745-4748 ◽  
Author(s):  
Mitsuru Kondo ◽  
Motonobu Goto ◽  
Akio Kodama ◽  
Tsutomu Hirose
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Bergamot Oil ◽  
Supercritical Carbon

Deterpenation of Bergamot Oil by Pressure Swing Adsorption in Supercritical Carbon Dioxide

2002 ◽  
Vol 35 (4) ◽  
pp. 372-376 ◽  
Author(s):  
Motonobu Goto ◽  
Gou Fukui ◽  
Hongtao Wang ◽  
Akio Kodama ◽  
Tsutomu Hirose
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Pressure Swing Adsorption ◽  
Pressure Swing ◽  
Bergamot Oil ◽  
Supercritical Carbon

scholarly journals Optimization of the Supercritical Carbon Dioxide Separation of Bergapten from Bergamot Essential Oil

2018 ◽  
Vol 101 (1) ◽  
pp. 293-297 ◽  
Author(s):  
Vincenzo Sicari
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Volatile Fraction ◽  
Carbon Dioxide Separation ◽  
Fractionation Tower ◽  
Post Process ◽  
Bergamot Oil ◽  
Cold Pressed ◽  
Supercritical Carbon

Abstract The possibility of following traditional cold-press extraction with the post process continuous separation of bergapten from bergamot essential oil was investigated. A fractionation tower was used in an experiment in which cold-pressed bergamot oil was extracted in a continuous countercurrent process by supercritical carbon dioxide under different conditions. Bergapten is fairly soluble in CO2 in its supercritical phase, in particular at a density of 277.90 kg⋅m–3, corresponding to a pressure of 8 MPa and temperature of 40°C. Under these conditions, an extract with 0.198% bergapten was obtained, a figure slightly below the percentage of bergapten contained in cold-pressed oil (0.21%). However, at densities below 200 kg⋅m–3, the amount of bergapten in the extracted oil was negligible. Of all tested conditions for separation, the best was found to be at a pressure of 8 MPa and temperature of 70°C, conditions under which bergapten was not detected. The results of the experiment showed that bergapten, and the non-volatile fraction in general, was extracted only in small quantities and was not extracted at all with at a CO2 pressure of 8 MPa.

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