Table 3.
Phenolic compounds in ginseng seed oil based on the extraction conditions
| Phenolic compound (μg/g) | Compress extraction | Solvent extraction (n-hexane) | Supercritical fluid extraction | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
||||||||||
| Control | 200℃, 10 min | 200℃, 20 min | 200℃, 30 min | Control | 200℃, 10 min | 200℃, 20 min | 200℃, 30 min | 150 bar, 35℃ | 150 bar, 65℃ | 500 bar, 35℃ | 500 bar, 65℃ | |
|
| ||||||||||||
| Maltol | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Hydroxy benzoic acid | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Gentisic acid | ND | ND | ND | ND | 1.438 | ND | ND | ND | ND | ND | ND | ND |
| Vanillic acid | ND | ND | ND | ND | ND | ND | ND | ND | 1.286 | 1.064 | 0.025 | 0.08 |
| Caffeic acid | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Syringic acid | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Coumaric acid | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Ferulic acid | 0.020 | 0.025 | 0.034 | 0.027 | ND | ND | ND | ND | ND | ND | 0.012 | 0.016 |
| Salicylic acid | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Cinnamic acid | 0.039 | 0.040 | 0.041 | 0.038 | 0.029 | 0.007 | 0.011 | 0.017 | ND | ND | 0.003 | ND |
ND, not detected.