1. Low-Temperature Protection of Active Ingredients
- Nervonic Acid Retention >95%
The core value of peony seed oil lies in its 12-15% nervonic acid (an omega-9 fatty acid). Traditional hot pressing (120-150°C) results in 30-40% degradation of nervonic acid. Subcritical butane/propane mixed solvents, operated at 40-60°C, fully preserve the integrity of the molecular structure.
- Natural Antioxidant Retention
Vitamin E retention increased by 50% (subcritical: ≥90mg/kg vs. hot pressing: ≤60mg/kg).
Total phenolic content is twice as high as traditional methods (ORAC antioxidant test data).
2. Environmental Protection and Energy Saving
Compared to traditional hexane extraction, subcritical extraction technology uses less solvent (<10 kg/ton of raw material), saves up to 70% of energy, and allows for solvent recycling, meeting green production requirements.
3. High-Purity Product
Subcritical extraction combined with molecular distillation for the extraction of peony seed essential oil. By optimizing operating parameters, high-purity essential oil can be obtained with high yield and excellent separation.
4. Wide Range of Applications
Subcritical extraction technology is not only suitable for the extraction of peony seed oil but can also be expanded to other fields such as natural pigments, flavors, and fragrances, offering broad application prospects.
