Supercritical carbon dioxide extraction of essential oil from tangerine peel: Experimental optimization and kinetics modelling

2020 ◽  
Vol 164 ◽  
pp. 412-423
Author(s):  
Kangning Xiong ◽  
Yun Chen
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Essential Oil ◽  
Supercritical Carbon Dioxide Extraction ◽  
Experimental Optimization ◽  
Kinetics Modelling ◽  
Carbon Dioxide Extraction ◽  
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.

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