Table 1.
Color, smell and oil yield rate of egg yolk oils extracted by different methods.
| Groups | Color | Smell | Oil Yield Rate (%) |
|---|---|---|---|
| Dry distillation method | Black brown | Empyreumatic | 34.14 ± 3.51 |
| Baking method | Black brown | Empyreumatic | 49.10 ± 2.32 |
| Reduced pressure distillation | Brown | Empyreumatic | 23.51 ± 1.34 |
| Ether extraction method | Orange | Slight egg fragrance | 35.00 ± 3.62 |
| Ethanol extraction method | Orange | Strong egg fragrance | 42.06 ± 5.35 |
| Petroleum ether extraction method | Orange | Slight egg fragrance | 56.79 ± 5.68 |
| Chloroform extraction method | Orange | Slight egg fragrance | 57.74 ± 4.53 |