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The optimal supercritical fluid CO2 extraction (SFE-CO2) conditions and yield of zeaxanthin dipalmitate and oil.
| Extraction Conditions | Optimum | Zeaxanthin Dipalmitate Yield (‰) |
Oil Yield (%) |
|---|---|---|---|
| Extraction pressure | 250 bar | 0.26 ± 0.05 a | 17.0 ± 0.67 a |
| Extraction temperature | 60 °C | ||
| Dynamic extraction time | 2.0 h | ||
| CO2 flow | 30 g/min | ||
| Cosolvent | 2% ethanol | 0.85 ± 0.11 b | 15.2 ± 0.42 b |
a Optimal conditions without cosolvent. b Optimal conditions with cosolvent.
