Supercritical carbon dioxide separation of bergamot essential oil by a countercurrent process

2003 ◽  
Vol 18 (5) ◽  
pp. 429-435 ◽  
Author(s):  
Marco Poiana ◽  
Antonio Mincione ◽  
Francesco Gionfriddo ◽  
Domenico Castaldo
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Carbon Dioxide Separation ◽  
Countercurrent Process ◽  
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.

Supercritical carbon dioxide fractionation of Lavandin essential oil: Experiments and modeling

2008 ◽  
Vol 45 (2) ◽  
pp. 181-188 ◽  
Author(s):  
S. Varona ◽  
A. Martin ◽  
M.J. Cocero ◽  
T. Gamse
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Supercritical Carbon

scholarly journals Comparison of Eucalyptus cinerea Essential Oils Produced by Hydrodistillation and Supercritical Carbon Dioxide Extraction

2011 ◽  
Vol 6 (1) ◽  
pp. 1934578X1100600
Author(s):  
Tavleen S. Mann ◽  
Garikapati D. Kiran Babu ◽  
Shailja Guleria ◽  
Bikram Singh
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Major Constituent ◽  
Volatile Fraction ◽  
Eucalyptus Species ◽  
Supercritical Carbon Dioxide Extraction ◽  
Significant Difference ◽  
Carbon Dioxide Extraction ◽  
Supercritical Carbon

The essential oil of Eucalyptus cinerea is reported to possess a higher 1,8-cineole content than other Eucalyptus species. Variations in the quantitative and qualitative characteristics of E. cinerea oil produced by hydrodistillation (HD) and supercritical carbon dioxide extraction (SCE) techniques and a comparison between glycoside-bound and free volatile constituents produced by HD have been studied. It was found that HD produced higher oil (free volatiles) content (3.1%) as compared with SCE (1.1%), whereas bound volatiles constituted only about 0.4%. Gas chromatographic (GC) analysis of the oil samples revealed significant difference in their chemical composition. The essential oil (free volatiles) produced by HD contained 1,8-cineole (85.1%) as the major constituent, followed by α-terpineol (7.2%) and limonene (4.4%). In the bound volatile fraction produced by HD, 1,8 cineole (20.6%), α-terpineol (7.6%), p-cymene (6.3%), and limonene (4.5%) were found as major constituents. The extract produced by SCE was dominated by 1,8-cineole (70.4%), α-terpineol (8.6%), globulol (3.1%), aromadendrene (2%), citronellal (1.7%), viridiflorol (1.3%), phytol (1.1%) and terpinen-4-ol (1%). Although HD produced higher oil yields, SCE produced better extract in terms of the number of components detected.

Extraction ofJuniperus communis L. ssp.nana Willd. essential oil by supercritical carbon dioxide

2005 ◽  
Vol 21 (1) ◽  
pp. 148-154 ◽  
Author(s):  
Bruno Marongiu ◽  
Silvia Porcedda ◽  
Alessandra Piras ◽  
Giuseppina Sanna ◽  
Marta Murreddu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Supercritical Carbon

Solubilities of Essential Oil Components of Orange in Supercritical Carbon Dioxide

2000 ◽  
Vol 45 (5) ◽  
pp. 724-727 ◽  
Author(s):  
Angel Berna ◽  
Amparo Cháfer ◽  
Juan B. Montón
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Oil Components ◽  
Supercritical Carbon
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