As global consumers increasingly demand clean-label, sustainable food products, the sesame oil industry is undergoing a quiet but powerful transformation — driven by supercritical CO₂ extraction technology. Unlike traditional methods that rely on heat or chemical solvents, this advanced process delivers superior quality while aligning with environmental and health-conscious values.
“In our trials, supercritical CO₂ extracted sesame oil retained over 95% of its original tocopherol content — significantly higher than solvent-based methods which can lose up to 40% during processing.”
— Dr. Lena Müller, Food Science Research Lead at ETH Zurich
The magic lies in precise control of temperature and pressure. At critical conditions (typically 31°C and 73 atm), CO₂ becomes a supercritical fluid — acting like both a gas and a liquid — enabling it to penetrate raw sesame seeds deeply without damaging delicate compounds.
Parameter | Optimal Range | Impact on Quality |
---|---|---|
Temperature | 35–45°C | Preserves volatile aromas and antioxidants |
Pressure | 20–30 MPa | Maximizes yield without thermal degradation |
Extraction Time | 60–90 minutes | Ensures complete lipid recovery while minimizing energy use |
These parameters aren’t arbitrary — they’re backed by real-world data from manufacturers who’ve adopted the method. One South Korean processor reported a 22% increase in yield and a 30% improvement in shelf life after switching from hexane extraction to supercritical CO₂.
When evaluating production technologies, decision-makers often compare cost, sustainability, and product quality. Here's how supercritical CO₂ stacks up:
“We didn’t just upgrade our tech — we redefined what ‘premium’ means in sesame oil,” says Rajiv Mehta, founder of a Mumbai-based B2B supplier now exporting to 14 countries. “Our customers pay more because they taste the difference.”
Many buyers hesitate due to myths:
You most care about which parameter? Temperature? Pressure? Yield? Let us know in the comments — we’ll share a free technical checklist tailored to your needs.