| zingiber officinale oil CO2 extract | |||
| # | % | Leftshift | Components | 
|---|---|---|---|
| 11 | 3.53 | beta- | bisabolene | 
| 20 | 1.82 | bisabolyl acetate | |
| 3 | 0.60 | borneol | |
| 7 | 0.31 | beta- | caryophyllene | 
| 1 | trace | 1,8- | cineole | 
| 9 | 10.87 | ar- | curcumene | 
| 18 | 1.31 | eudesmol | |
| 6 | 0.83 | eugenol | |
| 13 | 14.17 | beta- | farnesene | 
| 16 | 0.88 | (E,E)- | farnesol | 
| 15 | trace | (Z,Z)- | farnesol | 
| 22 | 6.02 | gingerol | |
| 17 | 2.26 | gingerone | |
| 21 | 0.54 | lanceolyl acetate | |
| 2 | trace | linalool | |
| 5 | 0.80 | linalyl acetate | |
| 19 | 2.21 | nerolidyl acetate | |
| 8 | 0.64 | neryl acetate | |
| 12 | 6.81 | beta-sesqui | phellandrene | 
| 14 | trace | beta- | selinene | 
| 23 | 12.22 | 6- | shogaol | 
| 4 | 2.51 | alpha- | terpineol | 
| 10 | 24.70 | zingiberene | |
M. D’Alpaos, P. Traldi, G. Tassinato and P. Pallado, Extraction of essential oils and flavors with classic and supercritical techniques: a comparison. Rivista Ital. EPPOS (Numero Speciale – Agosto), 200-207 (1997). P&F 25, No. 2, 46, (2000)  | |||
| zingiber officinale oil CO2 extract australia | |||
| In 1994, Bartley and Foley analyzed the chemical composition of a supercritical fluid extract of Australian-grown ginger. The freshly harvested roots were peeled and chopped into 2 mm cubes before grinding under liquid nitrogen. The pulp was mixed with coarse granulated Celite (diatomaceous earth) and subjected to extraction by supercritical CO2. The analysis was preformed by a combination of capillary GC (for retention indices and quantitative data) and GC/MS (for component identification confirmation). The compounds identified were: | |||
| # | % | Leftshift | Components | 
| 32 | 0.20 | aromadendrenol | |
| 23 | 10.83 | alpha- | bergamolene | 
| 24 | 2.73 | beta- | bisabolene | 
| 29 | 0.14 | alpha- | bisabolol | 
| 11 | 0.60 | borneol | |
| 16 | 0.10 | iso | bornyl acetate | 
| 25 | 0.14 | gamma- | cadinene | 
| 4 | 3.71 | camphene | |
| 9 | 2.99 | 1,8- | cineole | 
| 21 | 3.25 | ar- | curcumene | 
| 12 | 0.11 | decanal | |
| 28 | 0.22 | dodecatrienol | |
| 19 | 0.20 | beta- | elemene | 
| 18 | 0.23 | delta- | elemene | 
| 27 | 0.25 | elemol | |
| 20 | 0.18 | beta- | farnesene | 
| 15 | 25.06 | geranial | |
| 14 | 0.66 | geraniol | |
| 17 | 0.12 | geranyl acetate | |
| 1 | 0.52 | hexanal | |
| 7 | 0.43 | limonene | |
| 10 | 0.46 | linalool | |
| 2 | 0.11 | 3- | methyl hexanol | 
| 6 | 0.53 | myrcene | |
| 13 | 2.87 | neral | |
| 35 | 0.08 | 6- | paradol | 
| 34 | 0.20 | pentenyl curcumene | |
| 8 | 1.63 | beta- | phellandrene | 
| 26 | 8.18 | beta-sesqui | phellandrene | 
| 5 | 0.08 | beta- | pinene | 
| 30 | 0.22 | (Z)-sesqui | sabinene hydrate | 
| 36 | 0.31 | 6- | shogaol | 
| 3 | 0.93 | alpha- | thujene | 
| 31 | 0.15 | zingerenol | |
| 22 | 25.87 | zingiberene | |
| 33 | 0.64 | zongerone | |
J. P. Bartley and P. Foley, Supercritical fluid extraction of Australian grown ginger (Zingibar officinale), J. Sci. Food Agric., 66, 365-371 (1994). P&F 22, No. 5, 71, (1997)  | |||